ARK-OS/arkos/system/sysroot/usr/share/info/libc.info-17

This is libc.info, produced by makeinfo version 7.3 from libc.texinfo.

This is ‘The GNU C Library Reference Manual’, for version 2.43.

   Copyright © 1993-2026 Free Software Foundation, Inc.

   Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.3 or
any later version published by the Free Software Foundation; with the
Invariant Sections being "Free Software Needs Free Documentation" and
"GNU Lesser General Public License", the Front-Cover texts being "A GNU
Manual", and with the Back-Cover Texts as in (a) below.  A copy of the
license is included in the section entitled "GNU Free Documentation
License".

   (a) The FSF's Back-Cover Text is: "You have the freedom to copy and
modify this GNU manual.  Buying copies from the FSF supports it in
developing GNU and promoting software freedom."
INFO-DIR-SECTION Software libraries
START-INFO-DIR-ENTRY
* Libc: (libc).                 C library.
END-INFO-DIR-ENTRY

INFO-DIR-SECTION GNU C library functions and macros
START-INFO-DIR-ENTRY
* ALTWERASE: (libc)Local Modes.
* ARGP_ERR_UNKNOWN: (libc)Argp Parser Functions.
* ARG_MAX: (libc)General Limits.
* BAUD_MAX: (libc)Line Speed.
* BC_BASE_MAX: (libc)Utility Limits.
* BC_DIM_MAX: (libc)Utility Limits.
* BC_SCALE_MAX: (libc)Utility Limits.
* BC_STRING_MAX: (libc)Utility Limits.
* BRKINT: (libc)Input Modes.
* BUFSIZ: (libc)Controlling Buffering.
* CCTS_OFLOW: (libc)Control Modes.
* CHAR_BIT: (libc)Width of Type.
* CHILD_MAX: (libc)General Limits.
* CIGNORE: (libc)Control Modes.
* CLK_TCK: (libc)Processor Time.
* CLOCAL: (libc)Control Modes.
* CLOCKS_PER_SEC: (libc)CPU Time.
* CLOCK_BOOTTIME: (libc)Getting the Time.
* CLOCK_BOOTTIME_ALARM: (libc)Getting the Time.
* CLOCK_MONOTONIC: (libc)Getting the Time.
* CLOCK_MONOTONIC_COARSE: (libc)Getting the Time.
* CLOCK_MONOTONIC_RAW: (libc)Getting the Time.
* CLOCK_PROCESS_CPUTIME_ID: (libc)Getting the Time.
* CLOCK_REALTIME: (libc)Getting the Time.
* CLOCK_REALTIME_ALARM: (libc)Getting the Time.
* CLOCK_REALTIME_COARSE: (libc)Getting the Time.
* CLOCK_TAI: (libc)Getting the Time.
* CLOCK_THREAD_CPUTIME_ID: (libc)Getting the Time.
* COLL_WEIGHTS_MAX: (libc)Utility Limits.
* CPU_ALLOC: (libc)CPU Affinity.
* CPU_ALLOC_SIZE: (libc)CPU Affinity.
* CPU_AND: (libc)CPU Affinity.
* CPU_AND_S: (libc)CPU Affinity.
* CPU_CLR: (libc)CPU Affinity.
* CPU_CLR_S: (libc)CPU Affinity.
* CPU_COUNT: (libc)CPU Affinity.
* CPU_COUNT_S: (libc)CPU Affinity.
* CPU_EQUAL: (libc)CPU Affinity.
* CPU_EQUAL_S: (libc)CPU Affinity.
* CPU_FEATURE_ACTIVE: (libc)X86.
* CPU_FEATURE_PRESENT: (libc)X86.
* CPU_FREE: (libc)CPU Affinity.
* CPU_ISSET: (libc)CPU Affinity.
* CPU_ISSET_S: (libc)CPU Affinity.
* CPU_OR: (libc)CPU Affinity.
* CPU_OR_S: (libc)CPU Affinity.
* CPU_SET: (libc)CPU Affinity.
* CPU_SETSIZE: (libc)CPU Affinity.
* CPU_SET_S: (libc)CPU Affinity.
* CPU_XOR: (libc)CPU Affinity.
* CPU_XOR_S: (libc)CPU Affinity.
* CPU_ZERO: (libc)CPU Affinity.
* CPU_ZERO_S: (libc)CPU Affinity.
* CREAD: (libc)Control Modes.
* CRTS_IFLOW: (libc)Control Modes.
* CS5: (libc)Control Modes.
* CS6: (libc)Control Modes.
* CS7: (libc)Control Modes.
* CS8: (libc)Control Modes.
* CSIZE: (libc)Control Modes.
* CSTOPB: (libc)Control Modes.
* DLFO_EH_SEGMENT_TYPE: (libc)Dynamic Linker Introspection.
* DLFO_STRUCT_HAS_EH_COUNT: (libc)Dynamic Linker Introspection.
* DLFO_STRUCT_HAS_EH_DBASE: (libc)Dynamic Linker Introspection.
* DTTOIF: (libc)Directory Entries.
* E2BIG: (libc)Error Codes.
* EACCES: (libc)Error Codes.
* EADDRINUSE: (libc)Error Codes.
* EADDRNOTAVAIL: (libc)Error Codes.
* EADV: (libc)Error Codes.
* EAFNOSUPPORT: (libc)Error Codes.
* EAGAIN: (libc)Error Codes.
* EALREADY: (libc)Error Codes.
* EAUTH: (libc)Error Codes.
* EBACKGROUND: (libc)Error Codes.
* EBADE: (libc)Error Codes.
* EBADF: (libc)Error Codes.
* EBADFD: (libc)Error Codes.
* EBADMSG: (libc)Error Codes.
* EBADR: (libc)Error Codes.
* EBADRPC: (libc)Error Codes.
* EBADRQC: (libc)Error Codes.
* EBADSLT: (libc)Error Codes.
* EBFONT: (libc)Error Codes.
* EBUSY: (libc)Error Codes.
* ECANCELED: (libc)Error Codes.
* ECHILD: (libc)Error Codes.
* ECHO: (libc)Local Modes.
* ECHOCTL: (libc)Local Modes.
* ECHOE: (libc)Local Modes.
* ECHOK: (libc)Local Modes.
* ECHOKE: (libc)Local Modes.
* ECHONL: (libc)Local Modes.
* ECHOPRT: (libc)Local Modes.
* ECHRNG: (libc)Error Codes.
* ECOMM: (libc)Error Codes.
* ECONNABORTED: (libc)Error Codes.
* ECONNREFUSED: (libc)Error Codes.
* ECONNRESET: (libc)Error Codes.
* ED: (libc)Error Codes.
* EDEADLK: (libc)Error Codes.
* EDEADLOCK: (libc)Error Codes.
* EDESTADDRREQ: (libc)Error Codes.
* EDIED: (libc)Error Codes.
* EDOM: (libc)Error Codes.
* EDOTDOT: (libc)Error Codes.
* EDQUOT: (libc)Error Codes.
* EEXIST: (libc)Error Codes.
* EFAULT: (libc)Error Codes.
* EFBIG: (libc)Error Codes.
* EFTYPE: (libc)Error Codes.
* EGRATUITOUS: (libc)Error Codes.
* EGREGIOUS: (libc)Error Codes.
* EHOSTDOWN: (libc)Error Codes.
* EHOSTUNREACH: (libc)Error Codes.
* EHWPOISON: (libc)Error Codes.
* EIDRM: (libc)Error Codes.
* EIEIO: (libc)Error Codes.
* EILSEQ: (libc)Error Codes.
* EINPROGRESS: (libc)Error Codes.
* EINTR: (libc)Error Codes.
* EINVAL: (libc)Error Codes.
* EIO: (libc)Error Codes.
* EISCONN: (libc)Error Codes.
* EISDIR: (libc)Error Codes.
* EISNAM: (libc)Error Codes.
* EKEYEXPIRED: (libc)Error Codes.
* EKEYREJECTED: (libc)Error Codes.
* EKEYREVOKED: (libc)Error Codes.
* EL2HLT: (libc)Error Codes.
* EL2NSYNC: (libc)Error Codes.
* EL3HLT: (libc)Error Codes.
* EL3RST: (libc)Error Codes.
* ELIBACC: (libc)Error Codes.
* ELIBBAD: (libc)Error Codes.
* ELIBEXEC: (libc)Error Codes.
* ELIBMAX: (libc)Error Codes.
* ELIBSCN: (libc)Error Codes.
* ELNRNG: (libc)Error Codes.
* ELOOP: (libc)Error Codes.
* EMEDIUMTYPE: (libc)Error Codes.
* EMFILE: (libc)Error Codes.
* EMLINK: (libc)Error Codes.
* EMSGSIZE: (libc)Error Codes.
* EMULTIHOP: (libc)Error Codes.
* ENAMETOOLONG: (libc)Error Codes.
* ENAVAIL: (libc)Error Codes.
* ENEEDAUTH: (libc)Error Codes.
* ENETDOWN: (libc)Error Codes.
* ENETRESET: (libc)Error Codes.
* ENETUNREACH: (libc)Error Codes.
* ENFILE: (libc)Error Codes.
* ENOANO: (libc)Error Codes.
* ENOBUFS: (libc)Error Codes.
* ENOCSI: (libc)Error Codes.
* ENODATA: (libc)Error Codes.
* ENODEV: (libc)Error Codes.
* ENOENT: (libc)Error Codes.
* ENOEXEC: (libc)Error Codes.
* ENOKEY: (libc)Error Codes.
* ENOLCK: (libc)Error Codes.
* ENOLINK: (libc)Error Codes.
* ENOMEDIUM: (libc)Error Codes.
* ENOMEM: (libc)Error Codes.
* ENOMSG: (libc)Error Codes.
* ENONET: (libc)Error Codes.
* ENOPKG: (libc)Error Codes.
* ENOPROTOOPT: (libc)Error Codes.
* ENOSPC: (libc)Error Codes.
* ENOSR: (libc)Error Codes.
* ENOSTR: (libc)Error Codes.
* ENOSYS: (libc)Error Codes.
* ENOTBLK: (libc)Error Codes.
* ENOTCONN: (libc)Error Codes.
* ENOTDIR: (libc)Error Codes.
* ENOTEMPTY: (libc)Error Codes.
* ENOTNAM: (libc)Error Codes.
* ENOTRECOVERABLE: (libc)Error Codes.
* ENOTSOCK: (libc)Error Codes.
* ENOTSUP: (libc)Error Codes.
* ENOTTY: (libc)Error Codes.
* ENOTUNIQ: (libc)Error Codes.
* ENXIO: (libc)Error Codes.
* EOF: (libc)EOF and Errors.
* EOPNOTSUPP: (libc)Error Codes.
* EOVERFLOW: (libc)Error Codes.
* EOWNERDEAD: (libc)Error Codes.
* EPERM: (libc)Error Codes.
* EPFNOSUPPORT: (libc)Error Codes.
* EPIPE: (libc)Error Codes.
* EPROCLIM: (libc)Error Codes.
* EPROCUNAVAIL: (libc)Error Codes.
* EPROGMISMATCH: (libc)Error Codes.
* EPROGUNAVAIL: (libc)Error Codes.
* EPROTO: (libc)Error Codes.
* EPROTONOSUPPORT: (libc)Error Codes.
* EPROTOTYPE: (libc)Error Codes.
* EQUIV_CLASS_MAX: (libc)Utility Limits.
* ERANGE: (libc)Error Codes.
* EREMCHG: (libc)Error Codes.
* EREMOTE: (libc)Error Codes.
* EREMOTEIO: (libc)Error Codes.
* ERESTART: (libc)Error Codes.
* ERFKILL: (libc)Error Codes.
* EROFS: (libc)Error Codes.
* ERPCMISMATCH: (libc)Error Codes.
* ESHUTDOWN: (libc)Error Codes.
* ESOCKTNOSUPPORT: (libc)Error Codes.
* ESPIPE: (libc)Error Codes.
* ESRCH: (libc)Error Codes.
* ESRMNT: (libc)Error Codes.
* ESTALE: (libc)Error Codes.
* ESTRPIPE: (libc)Error Codes.
* ETIME: (libc)Error Codes.
* ETIMEDOUT: (libc)Error Codes.
* ETOOMANYREFS: (libc)Error Codes.
* ETXTBSY: (libc)Error Codes.
* EUCLEAN: (libc)Error Codes.
* EUNATCH: (libc)Error Codes.
* EUSERS: (libc)Error Codes.
* EWOULDBLOCK: (libc)Error Codes.
* EXDEV: (libc)Error Codes.
* EXFULL: (libc)Error Codes.
* EXIT_FAILURE: (libc)Exit Status.
* EXIT_SUCCESS: (libc)Exit Status.
* EXPR_NEST_MAX: (libc)Utility Limits.
* FD_CLOEXEC: (libc)Descriptor Flags.
* FD_CLR: (libc)Waiting for I/O.
* FD_ISSET: (libc)Waiting for I/O.
* FD_SET: (libc)Waiting for I/O.
* FD_SETSIZE: (libc)Waiting for I/O.
* FD_ZERO: (libc)Waiting for I/O.
* FE_SNANS_ALWAYS_SIGNAL: (libc)Infinity and NaN.
* FILENAME_MAX: (libc)Limits for Files.
* FLUSHO: (libc)Local Modes.
* FOPEN_MAX: (libc)Opening Streams.
* FP_ILOGB0: (libc)Exponents and Logarithms.
* FP_ILOGBNAN: (libc)Exponents and Logarithms.
* FP_LLOGB0: (libc)Exponents and Logarithms.
* FP_LLOGBNAN: (libc)Exponents and Logarithms.
* F_DUPFD: (libc)Duplicating Descriptors.
* F_GETFD: (libc)Descriptor Flags.
* F_GETFL: (libc)Getting File Status Flags.
* F_GETLK: (libc)File Locks.
* F_GETOWN: (libc)Interrupt Input.
* F_OFD_GETLK: (libc)Open File Description Locks.
* F_OFD_SETLK: (libc)Open File Description Locks.
* F_OFD_SETLKW: (libc)Open File Description Locks.
* F_OK: (libc)Testing File Access.
* F_SETFD: (libc)Descriptor Flags.
* F_SETFL: (libc)Getting File Status Flags.
* F_SETLK: (libc)File Locks.
* F_SETLKW: (libc)File Locks.
* F_SETOWN: (libc)Interrupt Input.
* HUGE_VAL: (libc)Math Error Reporting.
* HUGE_VALF: (libc)Math Error Reporting.
* HUGE_VALL: (libc)Math Error Reporting.
* HUGE_VAL_FN: (libc)Math Error Reporting.
* HUGE_VAL_FNx: (libc)Math Error Reporting.
* HUPCL: (libc)Control Modes.
* I: (libc)Complex Numbers.
* ICANON: (libc)Local Modes.
* ICRNL: (libc)Input Modes.
* IEXTEN: (libc)Local Modes.
* IFNAMSIZ: (libc)Interface Naming.
* IFTODT: (libc)Directory Entries.
* IGNBRK: (libc)Input Modes.
* IGNCR: (libc)Input Modes.
* IGNPAR: (libc)Input Modes.
* IMAXBEL: (libc)Input Modes.
* INADDR_ANY: (libc)Host Address Data Type.
* INADDR_BROADCAST: (libc)Host Address Data Type.
* INADDR_LOOPBACK: (libc)Host Address Data Type.
* INADDR_NONE: (libc)Host Address Data Type.
* INFINITY: (libc)Infinity and NaN.
* INLCR: (libc)Input Modes.
* INPCK: (libc)Input Modes.
* IPPORT_RESERVED: (libc)Ports.
* IPPORT_USERRESERVED: (libc)Ports.
* ISIG: (libc)Local Modes.
* ISTRIP: (libc)Input Modes.
* IXANY: (libc)Input Modes.
* IXOFF: (libc)Input Modes.
* IXON: (libc)Input Modes.
* LINE_MAX: (libc)Utility Limits.
* LINK_MAX: (libc)Limits for Files.
* L_ctermid: (libc)Identifying the Terminal.
* L_cuserid: (libc)Who Logged In.
* L_tmpnam: (libc)Temporary Files.
* MAXNAMLEN: (libc)Limits for Files.
* MAXSYMLINKS: (libc)Symbolic Links.
* MAX_CANON: (libc)Limits for Files.
* MAX_INPUT: (libc)Limits for Files.
* MB_CUR_MAX: (libc)Selecting the Conversion.
* MB_LEN_MAX: (libc)Selecting the Conversion.
* MDMBUF: (libc)Control Modes.
* MSG_DONTROUTE: (libc)Socket Data Options.
* MSG_OOB: (libc)Socket Data Options.
* MSG_PEEK: (libc)Socket Data Options.
* NAME_MAX: (libc)Limits for Files.
* NAN: (libc)Infinity and NaN.
* NCCS: (libc)Mode Data Types.
* NGROUPS_MAX: (libc)General Limits.
* NOFLSH: (libc)Local Modes.
* NOKERNINFO: (libc)Local Modes.
* NSIG: (libc)Standard Signals.
* NULL: (libc)Null Pointer Constant.
* ONLCR: (libc)Output Modes.
* ONOEOT: (libc)Output Modes.
* OPEN_MAX: (libc)General Limits.
* OPOST: (libc)Output Modes.
* OXTABS: (libc)Output Modes.
* O_ACCMODE: (libc)Access Modes.
* O_APPEND: (libc)Operating Modes.
* O_ASYNC: (libc)Operating Modes.
* O_CREAT: (libc)Open-time Flags.
* O_DIRECTORY: (libc)Open-time Flags.
* O_EXCL: (libc)Open-time Flags.
* O_EXEC: (libc)Access Modes.
* O_EXLOCK: (libc)Open-time Flags.
* O_FSYNC: (libc)Operating Modes.
* O_IGNORE_CTTY: (libc)Open-time Flags.
* O_NDELAY: (libc)Operating Modes.
* O_NOATIME: (libc)Operating Modes.
* O_NOCTTY: (libc)Open-time Flags.
* O_NOFOLLOW: (libc)Open-time Flags.
* O_NOLINK: (libc)Open-time Flags.
* O_NONBLOCK: (libc)Open-time Flags.
* O_NONBLOCK: (libc)Operating Modes.
* O_NOTRANS: (libc)Open-time Flags.
* O_PATH: (libc)Access Modes.
* O_RDONLY: (libc)Access Modes.
* O_RDWR: (libc)Access Modes.
* O_READ: (libc)Access Modes.
* O_SHLOCK: (libc)Open-time Flags.
* O_SYNC: (libc)Operating Modes.
* O_TMPFILE: (libc)Open-time Flags.
* O_TRUNC: (libc)Open-time Flags.
* O_WRITE: (libc)Access Modes.
* O_WRONLY: (libc)Access Modes.
* PARENB: (libc)Control Modes.
* PARMRK: (libc)Input Modes.
* PARODD: (libc)Control Modes.
* PATH_MAX: (libc)Limits for Files.
* PA_FLAG_MASK: (libc)Parsing a Template String.
* PENDIN: (libc)Local Modes.
* PF_FILE: (libc)Local Namespace Details.
* PF_INET6: (libc)Internet Namespace.
* PF_INET: (libc)Internet Namespace.
* PF_LOCAL: (libc)Local Namespace Details.
* PF_UNIX: (libc)Local Namespace Details.
* PIPE_BUF: (libc)Limits for Files.
* PTHREAD_ATTR_NO_SIGMASK_NP: (libc)Initial Thread Signal Mask.
* P_tmpdir: (libc)Temporary Files.
* RAND_MAX: (libc)ISO Random.
* RE_DUP_MAX: (libc)General Limits.
* RLIM_INFINITY: (libc)Limits on Resources.
* RSEQ_SIG: (libc)Restartable Sequences.
* R_OK: (libc)Testing File Access.
* SA_NOCLDSTOP: (libc)Flags for Sigaction.
* SA_NOCLDWAIT: (libc)Flags for Sigaction.
* SA_NODEFER: (libc)Flags for Sigaction.
* SA_ONSTACK: (libc)Flags for Sigaction.
* SA_RESETHAND: (libc)Flags for Sigaction.
* SA_RESTART: (libc)Flags for Sigaction.
* SA_SIGINFO: (libc)Flags for Sigaction.
* SEEK_CUR: (libc)File Positioning.
* SEEK_END: (libc)File Positioning.
* SEEK_SET: (libc)File Positioning.
* SIGABRT: (libc)Program Error Signals.
* SIGALRM: (libc)Alarm Signals.
* SIGBUS: (libc)Program Error Signals.
* SIGCHLD: (libc)Job Control Signals.
* SIGCLD: (libc)Job Control Signals.
* SIGCONT: (libc)Job Control Signals.
* SIGEMT: (libc)Program Error Signals.
* SIGFPE: (libc)Program Error Signals.
* SIGHUP: (libc)Termination Signals.
* SIGILL: (libc)Program Error Signals.
* SIGINFO: (libc)Miscellaneous Signals.
* SIGINT: (libc)Termination Signals.
* SIGIO: (libc)Asynchronous I/O Signals.
* SIGIOT: (libc)Program Error Signals.
* SIGKILL: (libc)Termination Signals.
* SIGLOST: (libc)Operation Error Signals.
* SIGPIPE: (libc)Operation Error Signals.
* SIGPOLL: (libc)Asynchronous I/O Signals.
* SIGPROF: (libc)Alarm Signals.
* SIGPWR: (libc)Miscellaneous Signals.
* SIGQUIT: (libc)Termination Signals.
* SIGSEGV: (libc)Program Error Signals.
* SIGSTKFLT: (libc)Program Error Signals.
* SIGSTOP: (libc)Job Control Signals.
* SIGSYS: (libc)Program Error Signals.
* SIGTERM: (libc)Termination Signals.
* SIGTRAP: (libc)Program Error Signals.
* SIGTSTP: (libc)Job Control Signals.
* SIGTTIN: (libc)Job Control Signals.
* SIGTTOU: (libc)Job Control Signals.
* SIGURG: (libc)Asynchronous I/O Signals.
* SIGUSR1: (libc)Miscellaneous Signals.
* SIGUSR2: (libc)Miscellaneous Signals.
* SIGVTALRM: (libc)Alarm Signals.
* SIGWINCH: (libc)Miscellaneous Signals.
* SIGXCPU: (libc)Operation Error Signals.
* SIGXFSZ: (libc)Operation Error Signals.
* SIG_ERR: (libc)Basic Signal Handling.
* SNAN: (libc)Infinity and NaN.
* SNANF: (libc)Infinity and NaN.
* SNANFN: (libc)Infinity and NaN.
* SNANFNx: (libc)Infinity and NaN.
* SNANL: (libc)Infinity and NaN.
* SOCK_DGRAM: (libc)Communication Styles.
* SOCK_RAW: (libc)Communication Styles.
* SOCK_RDM: (libc)Communication Styles.
* SOCK_SEQPACKET: (libc)Communication Styles.
* SOCK_STREAM: (libc)Communication Styles.
* SOL_SOCKET: (libc)Socket-Level Options.
* SPEED_MAX: (libc)Line Speed.
* SSIZE_MAX: (libc)General Limits.
* STREAM_MAX: (libc)General Limits.
* SUN_LEN: (libc)Local Namespace Details.
* S_IFMT: (libc)Testing File Type.
* S_ISBLK: (libc)Testing File Type.
* S_ISCHR: (libc)Testing File Type.
* S_ISDIR: (libc)Testing File Type.
* S_ISFIFO: (libc)Testing File Type.
* S_ISLNK: (libc)Testing File Type.
* S_ISREG: (libc)Testing File Type.
* S_ISSOCK: (libc)Testing File Type.
* S_TYPEISMQ: (libc)Testing File Type.
* S_TYPEISSEM: (libc)Testing File Type.
* S_TYPEISSHM: (libc)Testing File Type.
* TIME_UTC: (libc)Getting the Time.
* TMP_MAX: (libc)Temporary Files.
* TOSTOP: (libc)Local Modes.
* TZNAME_MAX: (libc)General Limits.
* VDISCARD: (libc)Other Special.
* VDSUSP: (libc)Signal Characters.
* VEOF: (libc)Editing Characters.
* VEOL2: (libc)Editing Characters.
* VEOL: (libc)Editing Characters.
* VERASE: (libc)Editing Characters.
* VINTR: (libc)Signal Characters.
* VKILL: (libc)Editing Characters.
* VLNEXT: (libc)Other Special.
* VMIN: (libc)Noncanonical Input.
* VQUIT: (libc)Signal Characters.
* VREPRINT: (libc)Editing Characters.
* VSTART: (libc)Start/Stop Characters.
* VSTATUS: (libc)Other Special.
* VSTOP: (libc)Start/Stop Characters.
* VSUSP: (libc)Signal Characters.
* VTIME: (libc)Noncanonical Input.
* VWERASE: (libc)Editing Characters.
* WCHAR_MAX: (libc)Extended Char Intro.
* WCHAR_MIN: (libc)Extended Char Intro.
* WCOREDUMP: (libc)Process Completion Status.
* WEOF: (libc)EOF and Errors.
* WEOF: (libc)Extended Char Intro.
* WEXITSTATUS: (libc)Process Completion Status.
* WIFEXITED: (libc)Process Completion Status.
* WIFSIGNALED: (libc)Process Completion Status.
* WIFSTOPPED: (libc)Process Completion Status.
* WSTOPSIG: (libc)Process Completion Status.
* WTERMSIG: (libc)Process Completion Status.
* W_OK: (libc)Testing File Access.
* X_OK: (libc)Testing File Access.
* _Complex_I: (libc)Complex Numbers.
* _Exit: (libc)Termination Internals.
* _Fork: (libc)Creating a Process.
* _IOFBF: (libc)Controlling Buffering.
* _IOLBF: (libc)Controlling Buffering.
* _IONBF: (libc)Controlling Buffering.
* _Imaginary_I: (libc)Complex Numbers.
* _PATH_UTMP: (libc)Manipulating the Database.
* _PATH_WTMP: (libc)Manipulating the Database.
* _POSIX2_C_DEV: (libc)System Options.
* _POSIX2_C_VERSION: (libc)Version Supported.
* _POSIX2_FORT_DEV: (libc)System Options.
* _POSIX2_FORT_RUN: (libc)System Options.
* _POSIX2_LOCALEDEF: (libc)System Options.
* _POSIX2_SW_DEV: (libc)System Options.
* _POSIX_CHOWN_RESTRICTED: (libc)Options for Files.
* _POSIX_JOB_CONTROL: (libc)System Options.
* _POSIX_NO_TRUNC: (libc)Options for Files.
* _POSIX_SAVED_IDS: (libc)System Options.
* _POSIX_VDISABLE: (libc)Options for Files.
* _POSIX_VERSION: (libc)Version Supported.
* __fbufsize: (libc)Controlling Buffering.
* __flbf: (libc)Controlling Buffering.
* __fpending: (libc)Controlling Buffering.
* __fpurge: (libc)Flushing Buffers.
* __freadable: (libc)Opening Streams.
* __freading: (libc)Opening Streams.
* __fsetlocking: (libc)Streams and Threads.
* __fwritable: (libc)Opening Streams.
* __fwriting: (libc)Opening Streams.
* __gconv_end_fct: (libc)glibc iconv Implementation.
* __gconv_fct: (libc)glibc iconv Implementation.
* __gconv_init_fct: (libc)glibc iconv Implementation.
* __ppc_get_timebase: (libc)PowerPC.
* __ppc_get_timebase_freq: (libc)PowerPC.
* __ppc_mdoio: (libc)PowerPC.
* __ppc_mdoom: (libc)PowerPC.
* __ppc_set_ppr_low: (libc)PowerPC.
* __ppc_set_ppr_med: (libc)PowerPC.
* __ppc_set_ppr_med_high: (libc)PowerPC.
* __ppc_set_ppr_med_low: (libc)PowerPC.
* __ppc_set_ppr_very_low: (libc)PowerPC.
* __ppc_yield: (libc)PowerPC.
* __riscv_flush_icache: (libc)RISC-V.
* __va_copy: (libc)Argument Macros.
* __x86_get_cpuid_feature_leaf: (libc)X86.
* _dl_find_object: (libc)Dynamic Linker Introspection.
* _exit: (libc)Termination Internals.
* _flushlbf: (libc)Flushing Buffers.
* _tolower: (libc)Case Conversion.
* _toupper: (libc)Case Conversion.
* a64l: (libc)Encode Binary Data.
* abort: (libc)Aborting a Program.
* abs: (libc)Absolute Value.
* accept: (libc)Accepting Connections.
* access: (libc)Testing File Access.
* acos: (libc)Inverse Trig Functions.
* acosf: (libc)Inverse Trig Functions.
* acosfN: (libc)Inverse Trig Functions.
* acosfNx: (libc)Inverse Trig Functions.
* acosh: (libc)Hyperbolic Functions.
* acoshf: (libc)Hyperbolic Functions.
* acoshfN: (libc)Hyperbolic Functions.
* acoshfNx: (libc)Hyperbolic Functions.
* acoshl: (libc)Hyperbolic Functions.
* acosl: (libc)Inverse Trig Functions.
* acospi: (libc)Inverse Trig Functions.
* acospif: (libc)Inverse Trig Functions.
* acospifN: (libc)Inverse Trig Functions.
* acospifNx: (libc)Inverse Trig Functions.
* acospil: (libc)Inverse Trig Functions.
* addmntent: (libc)mtab.
* addseverity: (libc)Adding Severity Classes.
* adjtime: (libc)Setting and Adjusting the Time.
* adjtimex: (libc)Setting and Adjusting the Time.
* aio_cancel64: (libc)Cancel AIO Operations.
* aio_cancel: (libc)Cancel AIO Operations.
* aio_error64: (libc)Status of AIO Operations.
* aio_error: (libc)Status of AIO Operations.
* aio_fsync64: (libc)Synchronizing AIO Operations.
* aio_fsync: (libc)Synchronizing AIO Operations.
* aio_init: (libc)Configuration of AIO.
* aio_read64: (libc)Asynchronous Reads/Writes.
* aio_read: (libc)Asynchronous Reads/Writes.
* aio_return64: (libc)Status of AIO Operations.
* aio_return: (libc)Status of AIO Operations.
* aio_suspend64: (libc)Synchronizing AIO Operations.
* aio_suspend: (libc)Synchronizing AIO Operations.
* aio_write64: (libc)Asynchronous Reads/Writes.
* aio_write: (libc)Asynchronous Reads/Writes.
* alarm: (libc)Setting an Alarm.
* aligned_alloc: (libc)Aligned Memory Blocks.
* alloca: (libc)Variable Size Automatic.
* alphasort64: (libc)Scanning Directory Content.
* alphasort: (libc)Scanning Directory Content.
* arc4random: (libc)High Quality Random.
* arc4random_buf: (libc)High Quality Random.
* arc4random_uniform: (libc)High Quality Random.
* argp_error: (libc)Argp Helper Functions.
* argp_failure: (libc)Argp Helper Functions.
* argp_help: (libc)Argp Help.
* argp_parse: (libc)Argp.
* argp_state_help: (libc)Argp Helper Functions.
* argp_usage: (libc)Argp Helper Functions.
* argz_add: (libc)Argz Functions.
* argz_add_sep: (libc)Argz Functions.
* argz_append: (libc)Argz Functions.
* argz_count: (libc)Argz Functions.
* argz_create: (libc)Argz Functions.
* argz_create_sep: (libc)Argz Functions.
* argz_delete: (libc)Argz Functions.
* argz_extract: (libc)Argz Functions.
* argz_insert: (libc)Argz Functions.
* argz_next: (libc)Argz Functions.
* argz_replace: (libc)Argz Functions.
* argz_stringify: (libc)Argz Functions.
* asctime: (libc)Formatting Calendar Time.
* asctime_r: (libc)Formatting Calendar Time.
* asin: (libc)Inverse Trig Functions.
* asinf: (libc)Inverse Trig Functions.
* asinfN: (libc)Inverse Trig Functions.
* asinfNx: (libc)Inverse Trig Functions.
* asinh: (libc)Hyperbolic Functions.
* asinhf: (libc)Hyperbolic Functions.
* asinhfN: (libc)Hyperbolic Functions.
* asinhfNx: (libc)Hyperbolic Functions.
* asinhl: (libc)Hyperbolic Functions.
* asinl: (libc)Inverse Trig Functions.
* asinpi: (libc)Inverse Trig Functions.
* asinpif: (libc)Inverse Trig Functions.
* asinpifN: (libc)Inverse Trig Functions.
* asinpifNx: (libc)Inverse Trig Functions.
* asinpil: (libc)Inverse Trig Functions.
* asprintf: (libc)Dynamic Output.
* assert: (libc)Consistency Checking.
* assert_perror: (libc)Consistency Checking.
* atan2: (libc)Inverse Trig Functions.
* atan2f: (libc)Inverse Trig Functions.
* atan2fN: (libc)Inverse Trig Functions.
* atan2fNx: (libc)Inverse Trig Functions.
* atan2l: (libc)Inverse Trig Functions.
* atan2pi: (libc)Inverse Trig Functions.
* atan2pif: (libc)Inverse Trig Functions.
* atan2pifN: (libc)Inverse Trig Functions.
* atan2pifNx: (libc)Inverse Trig Functions.
* atan2pil: (libc)Inverse Trig Functions.
* atan: (libc)Inverse Trig Functions.
* atanf: (libc)Inverse Trig Functions.
* atanfN: (libc)Inverse Trig Functions.
* atanfNx: (libc)Inverse Trig Functions.
* atanh: (libc)Hyperbolic Functions.
* atanhf: (libc)Hyperbolic Functions.
* atanhfN: (libc)Hyperbolic Functions.
* atanhfNx: (libc)Hyperbolic Functions.
* atanhl: (libc)Hyperbolic Functions.
* atanl: (libc)Inverse Trig Functions.
* atanpi: (libc)Inverse Trig Functions.
* atanpif: (libc)Inverse Trig Functions.
* atanpifN: (libc)Inverse Trig Functions.
* atanpifNx: (libc)Inverse Trig Functions.
* atanpil: (libc)Inverse Trig Functions.
* atexit: (libc)Cleanups on Exit.
* atof: (libc)Parsing of Floats.
* atoi: (libc)Parsing of Integers.
* atol: (libc)Parsing of Integers.
* atoll: (libc)Parsing of Integers.
* backtrace: (libc)Backtraces.
* backtrace_symbols: (libc)Backtraces.
* backtrace_symbols_fd: (libc)Backtraces.
* basename: (libc)Finding Tokens in a String.
* basename: (libc)Finding Tokens in a String.
* bcmp: (libc)String/Array Comparison.
* bcopy: (libc)Copying Strings and Arrays.
* bind: (libc)Setting Address.
* bind_textdomain_codeset: (libc)Charset conversion in gettext.
* bindtextdomain: (libc)Locating gettext catalog.
* brk: (libc)Resizing the Data Segment.
* bsearch: (libc)Array Search Function.
* btowc: (libc)Converting a Character.
* bzero: (libc)Copying Strings and Arrays.
* cabs: (libc)Absolute Value.
* cabsf: (libc)Absolute Value.
* cabsfN: (libc)Absolute Value.
* cabsfNx: (libc)Absolute Value.
* cabsl: (libc)Absolute Value.
* cacos: (libc)Inverse Trig Functions.
* cacosf: (libc)Inverse Trig Functions.
* cacosfN: (libc)Inverse Trig Functions.
* cacosfNx: (libc)Inverse Trig Functions.
* cacosh: (libc)Hyperbolic Functions.
* cacoshf: (libc)Hyperbolic Functions.
* cacoshfN: (libc)Hyperbolic Functions.
* cacoshfNx: (libc)Hyperbolic Functions.
* cacoshl: (libc)Hyperbolic Functions.
* cacosl: (libc)Inverse Trig Functions.
* call_once: (libc)Call Once.
* calloc: (libc)Allocating Cleared Space.
* canonicalize: (libc)FP Bit Twiddling.
* canonicalize_file_name: (libc)Symbolic Links.
* canonicalizef: (libc)FP Bit Twiddling.
* canonicalizefN: (libc)FP Bit Twiddling.
* canonicalizefNx: (libc)FP Bit Twiddling.
* canonicalizel: (libc)FP Bit Twiddling.
* carg: (libc)Operations on Complex.
* cargf: (libc)Operations on Complex.
* cargfN: (libc)Operations on Complex.
* cargfNx: (libc)Operations on Complex.
* cargl: (libc)Operations on Complex.
* casin: (libc)Inverse Trig Functions.
* casinf: (libc)Inverse Trig Functions.
* casinfN: (libc)Inverse Trig Functions.
* casinfNx: (libc)Inverse Trig Functions.
* casinh: (libc)Hyperbolic Functions.
* casinhf: (libc)Hyperbolic Functions.
* casinhfN: (libc)Hyperbolic Functions.
* casinhfNx: (libc)Hyperbolic Functions.
* casinhl: (libc)Hyperbolic Functions.
* casinl: (libc)Inverse Trig Functions.
* catan: (libc)Inverse Trig Functions.
* catanf: (libc)Inverse Trig Functions.
* catanfN: (libc)Inverse Trig Functions.
* catanfNx: (libc)Inverse Trig Functions.
* catanh: (libc)Hyperbolic Functions.
* catanhf: (libc)Hyperbolic Functions.
* catanhfN: (libc)Hyperbolic Functions.
* catanhfNx: (libc)Hyperbolic Functions.
* catanhl: (libc)Hyperbolic Functions.
* catanl: (libc)Inverse Trig Functions.
* catclose: (libc)The catgets Functions.
* catgets: (libc)The catgets Functions.
* catopen: (libc)The catgets Functions.
* cbrt: (libc)Exponents and Logarithms.
* cbrtf: (libc)Exponents and Logarithms.
* cbrtfN: (libc)Exponents and Logarithms.
* cbrtfNx: (libc)Exponents and Logarithms.
* cbrtl: (libc)Exponents and Logarithms.
* ccos: (libc)Trig Functions.
* ccosf: (libc)Trig Functions.
* ccosfN: (libc)Trig Functions.
* ccosfNx: (libc)Trig Functions.
* ccosh: (libc)Hyperbolic Functions.
* ccoshf: (libc)Hyperbolic Functions.
* ccoshfN: (libc)Hyperbolic Functions.
* ccoshfNx: (libc)Hyperbolic Functions.
* ccoshl: (libc)Hyperbolic Functions.
* ccosl: (libc)Trig Functions.
* ceil: (libc)Rounding Functions.
* ceilf: (libc)Rounding Functions.
* ceilfN: (libc)Rounding Functions.
* ceilfNx: (libc)Rounding Functions.
* ceill: (libc)Rounding Functions.
* cexp: (libc)Exponents and Logarithms.
* cexpf: (libc)Exponents and Logarithms.
* cexpfN: (libc)Exponents and Logarithms.
* cexpfNx: (libc)Exponents and Logarithms.
* cexpl: (libc)Exponents and Logarithms.
* cfgetibaud: (libc)Line Speed.
* cfgetispeed: (libc)Line Speed.
* cfgetobaud: (libc)Line Speed.
* cfgetospeed: (libc)Line Speed.
* cfmakeraw: (libc)Noncanonical Input.
* cfsetbaud: (libc)Line Speed.
* cfsetibaud: (libc)Line Speed.
* cfsetispeed: (libc)Line Speed.
* cfsetobaud: (libc)Line Speed.
* cfsetospeed: (libc)Line Speed.
* cfsetspeed: (libc)Line Speed.
* chdir: (libc)Working Directory.
* chmod: (libc)Setting Permissions.
* chown: (libc)File Owner.
* cimag: (libc)Operations on Complex.
* cimagf: (libc)Operations on Complex.
* cimagfN: (libc)Operations on Complex.
* cimagfNx: (libc)Operations on Complex.
* cimagl: (libc)Operations on Complex.
* clearenv: (libc)Environment Access.
* clearerr: (libc)Error Recovery.
* clearerr_unlocked: (libc)Error Recovery.
* clock: (libc)CPU Time.
* clock_getres: (libc)Getting the Time.
* clock_gettime: (libc)Getting the Time.
* clock_nanosleep: (libc)Sleeping.
* clock_settime: (libc)Setting and Adjusting the Time.
* clog10: (libc)Exponents and Logarithms.
* clog10f: (libc)Exponents and Logarithms.
* clog10fN: (libc)Exponents and Logarithms.
* clog10fNx: (libc)Exponents and Logarithms.
* clog10l: (libc)Exponents and Logarithms.
* clog: (libc)Exponents and Logarithms.
* clogf: (libc)Exponents and Logarithms.
* clogfN: (libc)Exponents and Logarithms.
* clogfNx: (libc)Exponents and Logarithms.
* clogl: (libc)Exponents and Logarithms.
* close: (libc)Opening and Closing Files.
* close_range: (libc)Opening and Closing Files.
* closedir: (libc)Reading/Closing Directory.
* closefrom: (libc)Opening and Closing Files.
* closelog: (libc)closelog.
* cnd_broadcast: (libc)ISO C Condition Variables.
* cnd_destroy: (libc)ISO C Condition Variables.
* cnd_init: (libc)ISO C Condition Variables.
* cnd_signal: (libc)ISO C Condition Variables.
* cnd_timedwait: (libc)ISO C Condition Variables.
* cnd_wait: (libc)ISO C Condition Variables.
* compoundn: (libc)Exponents and Logarithms.
* compoundnf: (libc)Exponents and Logarithms.
* compoundnfN: (libc)Exponents and Logarithms.
* compoundnfNx: (libc)Exponents and Logarithms.
* compoundnl: (libc)Exponents and Logarithms.
* confstr: (libc)String Parameters.
* conj: (libc)Operations on Complex.
* conjf: (libc)Operations on Complex.
* conjfN: (libc)Operations on Complex.
* conjfNx: (libc)Operations on Complex.
* conjl: (libc)Operations on Complex.
* connect: (libc)Connecting.
* copy_file_range: (libc)Copying File Data.
* copysign: (libc)FP Bit Twiddling.
* copysignf: (libc)FP Bit Twiddling.
* copysignfN: (libc)FP Bit Twiddling.
* copysignfNx: (libc)FP Bit Twiddling.
* copysignl: (libc)FP Bit Twiddling.
* cos: (libc)Trig Functions.
* cosf: (libc)Trig Functions.
* cosfN: (libc)Trig Functions.
* cosfNx: (libc)Trig Functions.
* cosh: (libc)Hyperbolic Functions.
* coshf: (libc)Hyperbolic Functions.
* coshfN: (libc)Hyperbolic Functions.
* coshfNx: (libc)Hyperbolic Functions.
* coshl: (libc)Hyperbolic Functions.
* cosl: (libc)Trig Functions.
* cospi: (libc)Trig Functions.
* cospif: (libc)Trig Functions.
* cospifN: (libc)Trig Functions.
* cospifNx: (libc)Trig Functions.
* cospil: (libc)Trig Functions.
* cpow: (libc)Exponents and Logarithms.
* cpowf: (libc)Exponents and Logarithms.
* cpowfN: (libc)Exponents and Logarithms.
* cpowfNx: (libc)Exponents and Logarithms.
* cpowl: (libc)Exponents and Logarithms.
* cproj: (libc)Operations on Complex.
* cprojf: (libc)Operations on Complex.
* cprojfN: (libc)Operations on Complex.
* cprojfNx: (libc)Operations on Complex.
* cprojl: (libc)Operations on Complex.
* creal: (libc)Operations on Complex.
* crealf: (libc)Operations on Complex.
* crealfN: (libc)Operations on Complex.
* crealfNx: (libc)Operations on Complex.
* creall: (libc)Operations on Complex.
* creat64: (libc)Opening and Closing Files.
* creat: (libc)Opening and Closing Files.
* csin: (libc)Trig Functions.
* csinf: (libc)Trig Functions.
* csinfN: (libc)Trig Functions.
* csinfNx: (libc)Trig Functions.
* csinh: (libc)Hyperbolic Functions.
* csinhf: (libc)Hyperbolic Functions.
* csinhfN: (libc)Hyperbolic Functions.
* csinhfNx: (libc)Hyperbolic Functions.
* csinhl: (libc)Hyperbolic Functions.
* csinl: (libc)Trig Functions.
* csqrt: (libc)Exponents and Logarithms.
* csqrtf: (libc)Exponents and Logarithms.
* csqrtfN: (libc)Exponents and Logarithms.
* csqrtfNx: (libc)Exponents and Logarithms.
* csqrtl: (libc)Exponents and Logarithms.
* ctan: (libc)Trig Functions.
* ctanf: (libc)Trig Functions.
* ctanfN: (libc)Trig Functions.
* ctanfNx: (libc)Trig Functions.
* ctanh: (libc)Hyperbolic Functions.
* ctanhf: (libc)Hyperbolic Functions.
* ctanhfN: (libc)Hyperbolic Functions.
* ctanhfNx: (libc)Hyperbolic Functions.
* ctanhl: (libc)Hyperbolic Functions.
* ctanl: (libc)Trig Functions.
* ctermid: (libc)Identifying the Terminal.
* ctime: (libc)Formatting Calendar Time.
* ctime_r: (libc)Formatting Calendar Time.
* cuserid: (libc)Who Logged In.
* daddl: (libc)Misc FP Arithmetic.
* dcgettext: (libc)Translation with gettext.
* dcngettext: (libc)Advanced gettext functions.
* ddivl: (libc)Misc FP Arithmetic.
* dfmal: (libc)Misc FP Arithmetic.
* dgettext: (libc)Translation with gettext.
* difftime: (libc)Calculating Elapsed Time.
* dirfd: (libc)Opening a Directory.
* dirname: (libc)Finding Tokens in a String.
* div: (libc)Integer Division.
* dlinfo: (libc)Dynamic Linker Introspection.
* dmull: (libc)Misc FP Arithmetic.
* dngettext: (libc)Advanced gettext functions.
* dprintf: (libc)Formatted Output Functions.
* drand48: (libc)SVID Random.
* drand48_r: (libc)SVID Random.
* drem: (libc)Remainder Functions.
* dremf: (libc)Remainder Functions.
* dreml: (libc)Remainder Functions.
* dsqrtl: (libc)Misc FP Arithmetic.
* dsubl: (libc)Misc FP Arithmetic.
* dup2: (libc)Duplicating Descriptors.
* dup3: (libc)Duplicating Descriptors.
* dup: (libc)Duplicating Descriptors.
* ecvt: (libc)System V Number Conversion.
* ecvt_r: (libc)System V Number Conversion.
* endfsent: (libc)fstab.
* endgrent: (libc)Scanning All Groups.
* endhostent: (libc)Host Names.
* endmntent: (libc)mtab.
* endnetent: (libc)Networks Database.
* endnetgrent: (libc)Lookup Netgroup.
* endprotoent: (libc)Protocols Database.
* endpwent: (libc)Scanning All Users.
* endservent: (libc)Services Database.
* endutent: (libc)Manipulating the Database.
* endutxent: (libc)XPG Functions.
* envz_add: (libc)Envz Functions.
* envz_entry: (libc)Envz Functions.
* envz_get: (libc)Envz Functions.
* envz_merge: (libc)Envz Functions.
* envz_remove: (libc)Envz Functions.
* envz_strip: (libc)Envz Functions.
* epoll_create: (libc)Other Low-Level I/O APIs.
* epoll_wait: (libc)Other Low-Level I/O APIs.
* erand48: (libc)SVID Random.
* erand48_r: (libc)SVID Random.
* erf: (libc)Special Functions.
* erfc: (libc)Special Functions.
* erfcf: (libc)Special Functions.
* erfcfN: (libc)Special Functions.
* erfcfNx: (libc)Special Functions.
* erfcl: (libc)Special Functions.
* erff: (libc)Special Functions.
* erffN: (libc)Special Functions.
* erffNx: (libc)Special Functions.
* erfl: (libc)Special Functions.
* err: (libc)Error Messages.
* errno: (libc)Checking for Errors.
* error: (libc)Error Messages.
* error_at_line: (libc)Error Messages.
* errx: (libc)Error Messages.
* execl: (libc)Executing a File.
* execle: (libc)Executing a File.
* execlp: (libc)Executing a File.
* execv: (libc)Executing a File.
* execve: (libc)Executing a File.
* execvp: (libc)Executing a File.
* exit: (libc)Normal Termination.
* exp10: (libc)Exponents and Logarithms.
* exp10f: (libc)Exponents and Logarithms.
* exp10fN: (libc)Exponents and Logarithms.
* exp10fNx: (libc)Exponents and Logarithms.
* exp10l: (libc)Exponents and Logarithms.
* exp10m1: (libc)Exponents and Logarithms.
* exp10m1f: (libc)Exponents and Logarithms.
* exp10m1fN: (libc)Exponents and Logarithms.
* exp10m1fNx: (libc)Exponents and Logarithms.
* exp10m1l: (libc)Exponents and Logarithms.
* exp2: (libc)Exponents and Logarithms.
* exp2f: (libc)Exponents and Logarithms.
* exp2fN: (libc)Exponents and Logarithms.
* exp2fNx: (libc)Exponents and Logarithms.
* exp2l: (libc)Exponents and Logarithms.
* exp2m1: (libc)Exponents and Logarithms.
* exp2m1f: (libc)Exponents and Logarithms.
* exp2m1fN: (libc)Exponents and Logarithms.
* exp2m1fNx: (libc)Exponents and Logarithms.
* exp2m1l: (libc)Exponents and Logarithms.
* exp: (libc)Exponents and Logarithms.
* expf: (libc)Exponents and Logarithms.
* expfN: (libc)Exponents and Logarithms.
* expfNx: (libc)Exponents and Logarithms.
* expl: (libc)Exponents and Logarithms.
* explicit_bzero: (libc)Erasing Sensitive Data.
* expm1: (libc)Exponents and Logarithms.
* expm1f: (libc)Exponents and Logarithms.
* expm1fN: (libc)Exponents and Logarithms.
* expm1fNx: (libc)Exponents and Logarithms.
* expm1l: (libc)Exponents and Logarithms.
* fMaddfN: (libc)Misc FP Arithmetic.
* fMaddfNx: (libc)Misc FP Arithmetic.
* fMdivfN: (libc)Misc FP Arithmetic.
* fMdivfNx: (libc)Misc FP Arithmetic.
* fMfmafN: (libc)Misc FP Arithmetic.
* fMfmafNx: (libc)Misc FP Arithmetic.
* fMmulfN: (libc)Misc FP Arithmetic.
* fMmulfNx: (libc)Misc FP Arithmetic.
* fMsqrtfN: (libc)Misc FP Arithmetic.
* fMsqrtfNx: (libc)Misc FP Arithmetic.
* fMsubfN: (libc)Misc FP Arithmetic.
* fMsubfNx: (libc)Misc FP Arithmetic.
* fMxaddfN: (libc)Misc FP Arithmetic.
* fMxaddfNx: (libc)Misc FP Arithmetic.
* fMxdivfN: (libc)Misc FP Arithmetic.
* fMxdivfNx: (libc)Misc FP Arithmetic.
* fMxfmafN: (libc)Misc FP Arithmetic.
* fMxfmafNx: (libc)Misc FP Arithmetic.
* fMxmulfN: (libc)Misc FP Arithmetic.
* fMxmulfNx: (libc)Misc FP Arithmetic.
* fMxsqrtfN: (libc)Misc FP Arithmetic.
* fMxsqrtfNx: (libc)Misc FP Arithmetic.
* fMxsubfN: (libc)Misc FP Arithmetic.
* fMxsubfNx: (libc)Misc FP Arithmetic.
* fabs: (libc)Absolute Value.
* fabsf: (libc)Absolute Value.
* fabsfN: (libc)Absolute Value.
* fabsfNx: (libc)Absolute Value.
* fabsl: (libc)Absolute Value.
* faccessat: (libc)Testing File Access.
* fadd: (libc)Misc FP Arithmetic.
* faddl: (libc)Misc FP Arithmetic.
* fchdir: (libc)Working Directory.
* fchmod: (libc)Setting Permissions.
* fchown: (libc)File Owner.
* fclose: (libc)Closing Streams.
* fcloseall: (libc)Closing Streams.
* fcntl: (libc)Control Operations.
* fcvt: (libc)System V Number Conversion.
* fcvt_r: (libc)System V Number Conversion.
* fdatasync: (libc)Synchronizing I/O.
* fdim: (libc)Misc FP Arithmetic.
* fdimf: (libc)Misc FP Arithmetic.
* fdimfN: (libc)Misc FP Arithmetic.
* fdimfNx: (libc)Misc FP Arithmetic.
* fdiml: (libc)Misc FP Arithmetic.
* fdiv: (libc)Misc FP Arithmetic.
* fdivl: (libc)Misc FP Arithmetic.
* fdopen: (libc)Descriptors and Streams.
* fdopendir: (libc)Opening a Directory.
* feclearexcept: (libc)Status bit operations.
* fedisableexcept: (libc)Control Functions.
* feenableexcept: (libc)Control Functions.
* fegetenv: (libc)Control Functions.
* fegetexcept: (libc)Control Functions.
* fegetexceptflag: (libc)Status bit operations.
* fegetmode: (libc)Control Functions.
* fegetround: (libc)Rounding.
* feholdexcept: (libc)Control Functions.
* feof: (libc)EOF and Errors.
* feof_unlocked: (libc)EOF and Errors.
* feraiseexcept: (libc)Status bit operations.
* ferror: (libc)EOF and Errors.
* ferror_unlocked: (libc)EOF and Errors.
* fesetenv: (libc)Control Functions.
* fesetexcept: (libc)Status bit operations.
* fesetexceptflag: (libc)Status bit operations.
* fesetmode: (libc)Control Functions.
* fesetround: (libc)Rounding.
* fetestexcept: (libc)Status bit operations.
* fetestexceptflag: (libc)Status bit operations.
* feupdateenv: (libc)Control Functions.
* fexecve: (libc)Executing a File.
* fflush: (libc)Flushing Buffers.
* fflush_unlocked: (libc)Flushing Buffers.
* ffma: (libc)Misc FP Arithmetic.
* ffmal: (libc)Misc FP Arithmetic.
* fgetc: (libc)Character Input.
* fgetc_unlocked: (libc)Character Input.
* fgetgrent: (libc)Scanning All Groups.
* fgetgrent_r: (libc)Scanning All Groups.
* fgetpos64: (libc)Portable Positioning.
* fgetpos: (libc)Portable Positioning.
* fgetpwent: (libc)Scanning All Users.
* fgetpwent_r: (libc)Scanning All Users.
* fgets: (libc)Line Input.
* fgets_unlocked: (libc)Line Input.
* fgetwc: (libc)Character Input.
* fgetwc_unlocked: (libc)Character Input.
* fgetws: (libc)Line Input.
* fgetws_unlocked: (libc)Line Input.
* fileno: (libc)Descriptors and Streams.
* fileno_unlocked: (libc)Descriptors and Streams.
* finite: (libc)Floating Point Classes.
* finitef: (libc)Floating Point Classes.
* finitel: (libc)Floating Point Classes.
* flockfile: (libc)Streams and Threads.
* floor: (libc)Rounding Functions.
* floorf: (libc)Rounding Functions.
* floorfN: (libc)Rounding Functions.
* floorfNx: (libc)Rounding Functions.
* floorl: (libc)Rounding Functions.
* fma: (libc)Misc FP Arithmetic.
* fmaf: (libc)Misc FP Arithmetic.
* fmafN: (libc)Misc FP Arithmetic.
* fmafNx: (libc)Misc FP Arithmetic.
* fmal: (libc)Misc FP Arithmetic.
* fmax: (libc)Misc FP Arithmetic.
* fmaxf: (libc)Misc FP Arithmetic.
* fmaxfN: (libc)Misc FP Arithmetic.
* fmaxfNx: (libc)Misc FP Arithmetic.
* fmaximum: (libc)Misc FP Arithmetic.
* fmaximum_mag: (libc)Misc FP Arithmetic.
* fmaximum_mag_num: (libc)Misc FP Arithmetic.
* fmaximum_mag_numf: (libc)Misc FP Arithmetic.
* fmaximum_mag_numfN: (libc)Misc FP Arithmetic.
* fmaximum_mag_numfNx: (libc)Misc FP Arithmetic.
* fmaximum_mag_numl: (libc)Misc FP Arithmetic.
* fmaximum_magf: (libc)Misc FP Arithmetic.
* fmaximum_magfN: (libc)Misc FP Arithmetic.
* fmaximum_magfNx: (libc)Misc FP Arithmetic.
* fmaximum_magl: (libc)Misc FP Arithmetic.
* fmaximum_num: (libc)Misc FP Arithmetic.
* fmaximum_numf: (libc)Misc FP Arithmetic.
* fmaximum_numfN: (libc)Misc FP Arithmetic.
* fmaximum_numfNx: (libc)Misc FP Arithmetic.
* fmaximum_numl: (libc)Misc FP Arithmetic.
* fmaximumf: (libc)Misc FP Arithmetic.
* fmaximumfN: (libc)Misc FP Arithmetic.
* fmaximumfNx: (libc)Misc FP Arithmetic.
* fmaximuml: (libc)Misc FP Arithmetic.
* fmaxl: (libc)Misc FP Arithmetic.
* fmaxmag: (libc)Misc FP Arithmetic.
* fmaxmagf: (libc)Misc FP Arithmetic.
* fmaxmagfN: (libc)Misc FP Arithmetic.
* fmaxmagfNx: (libc)Misc FP Arithmetic.
* fmaxmagl: (libc)Misc FP Arithmetic.
* fmemopen: (libc)String Streams.
* fmin: (libc)Misc FP Arithmetic.
* fminf: (libc)Misc FP Arithmetic.
* fminfN: (libc)Misc FP Arithmetic.
* fminfNx: (libc)Misc FP Arithmetic.
* fminimum: (libc)Misc FP Arithmetic.
* fminimum_mag: (libc)Misc FP Arithmetic.
* fminimum_mag_num: (libc)Misc FP Arithmetic.
* fminimum_mag_numf: (libc)Misc FP Arithmetic.
* fminimum_mag_numfN: (libc)Misc FP Arithmetic.
* fminimum_mag_numfNx: (libc)Misc FP Arithmetic.
* fminimum_mag_numl: (libc)Misc FP Arithmetic.
* fminimum_magf: (libc)Misc FP Arithmetic.
* fminimum_magfN: (libc)Misc FP Arithmetic.
* fminimum_magfNx: (libc)Misc FP Arithmetic.
* fminimum_magl: (libc)Misc FP Arithmetic.
* fminimum_num: (libc)Misc FP Arithmetic.
* fminimum_numf: (libc)Misc FP Arithmetic.
* fminimum_numfN: (libc)Misc FP Arithmetic.
* fminimum_numfNx: (libc)Misc FP Arithmetic.
* fminimum_numl: (libc)Misc FP Arithmetic.
* fminimumf: (libc)Misc FP Arithmetic.
* fminimumfN: (libc)Misc FP Arithmetic.
* fminimumfNx: (libc)Misc FP Arithmetic.
* fminimuml: (libc)Misc FP Arithmetic.
* fminl: (libc)Misc FP Arithmetic.
* fminmag: (libc)Misc FP Arithmetic.
* fminmagf: (libc)Misc FP Arithmetic.
* fminmagfN: (libc)Misc FP Arithmetic.
* fminmagfNx: (libc)Misc FP Arithmetic.
* fminmagl: (libc)Misc FP Arithmetic.
* fmod: (libc)Remainder Functions.
* fmodf: (libc)Remainder Functions.
* fmodfN: (libc)Remainder Functions.
* fmodfNx: (libc)Remainder Functions.
* fmodl: (libc)Remainder Functions.
* fmtmsg: (libc)Printing Formatted Messages.
* fmul: (libc)Misc FP Arithmetic.
* fmull: (libc)Misc FP Arithmetic.
* fnmatch: (libc)Wildcard Matching.
* fopen64: (libc)Opening Streams.
* fopen: (libc)Opening Streams.
* fopencookie: (libc)Streams and Cookies.
* fork: (libc)Creating a Process.
* forkpty: (libc)Pseudo-Terminal Pairs.
* fpathconf: (libc)Pathconf.
* fpclassify: (libc)Floating Point Classes.
* fprintf: (libc)Formatted Output Functions.
* fputc: (libc)Simple Output.
* fputc_unlocked: (libc)Simple Output.
* fputs: (libc)Simple Output.
* fputs_unlocked: (libc)Simple Output.
* fputwc: (libc)Simple Output.
* fputwc_unlocked: (libc)Simple Output.
* fputws: (libc)Simple Output.
* fputws_unlocked: (libc)Simple Output.
* fread: (libc)Block Input/Output.
* fread_unlocked: (libc)Block Input/Output.
* free: (libc)Freeing after Malloc.
* free_aligned_sized: (libc)Freeing after Malloc.
* free_sized: (libc)Freeing after Malloc.
* freopen64: (libc)Opening Streams.
* freopen: (libc)Opening Streams.
* frexp: (libc)Normalization Functions.
* frexpf: (libc)Normalization Functions.
* frexpfN: (libc)Normalization Functions.
* frexpfNx: (libc)Normalization Functions.
* frexpl: (libc)Normalization Functions.
* fromfp: (libc)Rounding Functions.
* fromfpf: (libc)Rounding Functions.
* fromfpfN: (libc)Rounding Functions.
* fromfpfNx: (libc)Rounding Functions.
* fromfpl: (libc)Rounding Functions.
* fromfpx: (libc)Rounding Functions.
* fromfpxf: (libc)Rounding Functions.
* fromfpxfN: (libc)Rounding Functions.
* fromfpxfNx: (libc)Rounding Functions.
* fromfpxl: (libc)Rounding Functions.
* fscanf: (libc)Formatted Input Functions.
* fseek: (libc)File Positioning.
* fseeko64: (libc)File Positioning.
* fseeko: (libc)File Positioning.
* fsetpos64: (libc)Portable Positioning.
* fsetpos: (libc)Portable Positioning.
* fsqrt: (libc)Misc FP Arithmetic.
* fsqrtl: (libc)Misc FP Arithmetic.
* fstat64: (libc)Reading Attributes.
* fstat: (libc)Reading Attributes.
* fstatat64: (libc)Reading Attributes.
* fstatat: (libc)Reading Attributes.
* fsub: (libc)Misc FP Arithmetic.
* fsubl: (libc)Misc FP Arithmetic.
* fsync: (libc)Synchronizing I/O.
* ftell: (libc)File Positioning.
* ftello64: (libc)File Positioning.
* ftello: (libc)File Positioning.
* ftruncate64: (libc)File Size.
* ftruncate: (libc)File Size.
* ftrylockfile: (libc)Streams and Threads.
* ftw64: (libc)Working with Directory Trees.
* ftw: (libc)Working with Directory Trees.
* funlockfile: (libc)Streams and Threads.
* futimens: (libc)File Times.
* futimes: (libc)File Times.
* fwide: (libc)Streams and I18N.
* fwprintf: (libc)Formatted Output Functions.
* fwrite: (libc)Block Input/Output.
* fwrite_unlocked: (libc)Block Input/Output.
* fwscanf: (libc)Formatted Input Functions.
* gamma: (libc)Special Functions.
* gammaf: (libc)Special Functions.
* gammal: (libc)Special Functions.
* gcvt: (libc)System V Number Conversion.
* get_avphys_pages: (libc)Query Memory Parameters.
* get_current_dir_name: (libc)Working Directory.
* get_nprocs: (libc)Processor Resources.
* get_nprocs_conf: (libc)Processor Resources.
* get_phys_pages: (libc)Query Memory Parameters.
* getauxval: (libc)Auxiliary Vector.
* getc: (libc)Character Input.
* getc_unlocked: (libc)Character Input.
* getchar: (libc)Character Input.
* getchar_unlocked: (libc)Character Input.
* getcontext: (libc)System V contexts.
* getcpu: (libc)CPU Affinity.
* getcwd: (libc)Working Directory.
* getdate: (libc)General Time String Parsing.
* getdate_r: (libc)General Time String Parsing.
* getdelim: (libc)Line Input.
* getdents64: (libc)Low-level Directory Access.
* getdomainname: (libc)Host Identification.
* getegid: (libc)Reading Persona.
* getentropy: (libc)Unpredictable Bytes.
* getenv: (libc)Environment Access.
* geteuid: (libc)Reading Persona.
* getfsent: (libc)fstab.
* getfsfile: (libc)fstab.
* getfsspec: (libc)fstab.
* getgid: (libc)Reading Persona.
* getgrent: (libc)Scanning All Groups.
* getgrent_r: (libc)Scanning All Groups.
* getgrgid: (libc)Lookup Group.
* getgrgid_r: (libc)Lookup Group.
* getgrnam: (libc)Lookup Group.
* getgrnam_r: (libc)Lookup Group.
* getgrouplist: (libc)Setting Groups.
* getgroups: (libc)Reading Persona.
* gethostbyaddr: (libc)Host Names.
* gethostbyaddr_r: (libc)Host Names.
* gethostbyname2: (libc)Host Names.
* gethostbyname2_r: (libc)Host Names.
* gethostbyname: (libc)Host Names.
* gethostbyname_r: (libc)Host Names.
* gethostent: (libc)Host Names.
* gethostid: (libc)Host Identification.
* gethostname: (libc)Host Identification.
* getitimer: (libc)Setting an Alarm.
* getline: (libc)Line Input.
* getloadavg: (libc)Processor Resources.
* getlogin: (libc)Who Logged In.
* getmntent: (libc)mtab.
* getmntent_r: (libc)mtab.
* getnetbyaddr: (libc)Networks Database.
* getnetbyname: (libc)Networks Database.
* getnetent: (libc)Networks Database.
* getnetgrent: (libc)Lookup Netgroup.
* getnetgrent_r: (libc)Lookup Netgroup.
* getopt: (libc)Using Getopt.
* getopt_long: (libc)Getopt Long Options.
* getopt_long_only: (libc)Getopt Long Options.
* getpagesize: (libc)Query Memory Parameters.
* getpass: (libc)getpass.
* getpayload: (libc)FP Bit Twiddling.
* getpayloadf: (libc)FP Bit Twiddling.
* getpayloadfN: (libc)FP Bit Twiddling.
* getpayloadfNx: (libc)FP Bit Twiddling.
* getpayloadl: (libc)FP Bit Twiddling.
* getpeername: (libc)Who is Connected.
* getpgid: (libc)Process Group Functions.
* getpgrp: (libc)Process Group Functions.
* getpid: (libc)Process Identification.
* getppid: (libc)Process Identification.
* getpriority: (libc)Traditional Scheduling Functions.
* getprotobyname: (libc)Protocols Database.
* getprotobynumber: (libc)Protocols Database.
* getprotoent: (libc)Protocols Database.
* getpt: (libc)Allocation.
* getpwent: (libc)Scanning All Users.
* getpwent_r: (libc)Scanning All Users.
* getpwnam: (libc)Lookup User.
* getpwnam_r: (libc)Lookup User.
* getpwuid: (libc)Lookup User.
* getpwuid_r: (libc)Lookup User.
* getrandom: (libc)Unpredictable Bytes.
* getrlimit64: (libc)Limits on Resources.
* getrlimit: (libc)Limits on Resources.
* getrusage: (libc)Resource Usage.
* gets: (libc)Line Input.
* getservbyname: (libc)Services Database.
* getservbyport: (libc)Services Database.
* getservent: (libc)Services Database.
* getsid: (libc)Process Group Functions.
* getsockname: (libc)Reading Address.
* getsockopt: (libc)Socket Option Functions.
* getsubopt: (libc)Suboptions.
* gettext: (libc)Translation with gettext.
* gettid: (libc)Process Identification.
* gettimeofday: (libc)Getting the Time.
* getuid: (libc)Reading Persona.
* getumask: (libc)Setting Permissions.
* getutent: (libc)Manipulating the Database.
* getutent_r: (libc)Manipulating the Database.
* getutid: (libc)Manipulating the Database.
* getutid_r: (libc)Manipulating the Database.
* getutline: (libc)Manipulating the Database.
* getutline_r: (libc)Manipulating the Database.
* getutmp: (libc)XPG Functions.
* getutmpx: (libc)XPG Functions.
* getutxent: (libc)XPG Functions.
* getutxid: (libc)XPG Functions.
* getutxline: (libc)XPG Functions.
* getw: (libc)Character Input.
* getwc: (libc)Character Input.
* getwc_unlocked: (libc)Character Input.
* getwchar: (libc)Character Input.
* getwchar_unlocked: (libc)Character Input.
* getwd: (libc)Working Directory.
* glob64: (libc)Calling Glob.
* glob: (libc)Calling Glob.
* globfree64: (libc)More Flags for Globbing.
* globfree: (libc)More Flags for Globbing.
* gmtime: (libc)Broken-down Time.
* gmtime_r: (libc)Broken-down Time.
* grantpt: (libc)Allocation.
* gsignal: (libc)Signaling Yourself.
* gtty: (libc)BSD Terminal Modes.
* hasmntopt: (libc)mtab.
* hcreate: (libc)Hash Search Function.
* hcreate_r: (libc)Hash Search Function.
* hdestroy: (libc)Hash Search Function.
* hdestroy_r: (libc)Hash Search Function.
* hsearch: (libc)Hash Search Function.
* hsearch_r: (libc)Hash Search Function.
* htonl: (libc)Byte Order.
* htons: (libc)Byte Order.
* hypot: (libc)Exponents and Logarithms.
* hypotf: (libc)Exponents and Logarithms.
* hypotfN: (libc)Exponents and Logarithms.
* hypotfNx: (libc)Exponents and Logarithms.
* hypotl: (libc)Exponents and Logarithms.
* iconv: (libc)Generic Conversion Interface.
* iconv_close: (libc)Generic Conversion Interface.
* iconv_open: (libc)Generic Conversion Interface.
* if_freenameindex: (libc)Interface Naming.
* if_indextoname: (libc)Interface Naming.
* if_nameindex: (libc)Interface Naming.
* if_nametoindex: (libc)Interface Naming.
* ilogb: (libc)Exponents and Logarithms.
* ilogbf: (libc)Exponents and Logarithms.
* ilogbfN: (libc)Exponents and Logarithms.
* ilogbfNx: (libc)Exponents and Logarithms.
* ilogbl: (libc)Exponents and Logarithms.
* imaxabs: (libc)Absolute Value.
* imaxdiv: (libc)Integer Division.
* in6addr_any: (libc)Host Address Data Type.
* in6addr_loopback: (libc)Host Address Data Type.
* index: (libc)Search Functions.
* inet_addr: (libc)Host Address Functions.
* inet_aton: (libc)Host Address Functions.
* inet_lnaof: (libc)Host Address Functions.
* inet_makeaddr: (libc)Host Address Functions.
* inet_netof: (libc)Host Address Functions.
* inet_network: (libc)Host Address Functions.
* inet_ntoa: (libc)Host Address Functions.
* inet_ntop: (libc)Host Address Functions.
* inet_pton: (libc)Host Address Functions.
* initgroups: (libc)Setting Groups.
* initstate: (libc)BSD Random.
* initstate_r: (libc)BSD Random.
* innetgr: (libc)Netgroup Membership.
* ioctl: (libc)IOCTLs.
* isalnum: (libc)Classification of Characters.
* isalpha: (libc)Classification of Characters.
* isascii: (libc)Classification of Characters.
* isatty: (libc)Is It a Terminal.
* isblank: (libc)Classification of Characters.
* iscanonical: (libc)Floating Point Classes.
* iscntrl: (libc)Classification of Characters.
* isdigit: (libc)Classification of Characters.
* iseqsig: (libc)FP Comparison Functions.
* isfinite: (libc)Floating Point Classes.
* isgraph: (libc)Classification of Characters.
* isgreater: (libc)FP Comparison Functions.
* isgreaterequal: (libc)FP Comparison Functions.
* isinf: (libc)Floating Point Classes.
* isinff: (libc)Floating Point Classes.
* isinfl: (libc)Floating Point Classes.
* isless: (libc)FP Comparison Functions.
* islessequal: (libc)FP Comparison Functions.
* islessgreater: (libc)FP Comparison Functions.
* islower: (libc)Classification of Characters.
* isnan: (libc)Floating Point Classes.
* isnan: (libc)Floating Point Classes.
* isnanf: (libc)Floating Point Classes.
* isnanl: (libc)Floating Point Classes.
* isnormal: (libc)Floating Point Classes.
* isprint: (libc)Classification of Characters.
* ispunct: (libc)Classification of Characters.
* issignaling: (libc)Floating Point Classes.
* isspace: (libc)Classification of Characters.
* issubnormal: (libc)Floating Point Classes.
* isunordered: (libc)FP Comparison Functions.
* isupper: (libc)Classification of Characters.
* iswalnum: (libc)Classification of Wide Characters.
* iswalpha: (libc)Classification of Wide Characters.
* iswblank: (libc)Classification of Wide Characters.
* iswcntrl: (libc)Classification of Wide Characters.
* iswctype: (libc)Classification of Wide Characters.
* iswdigit: (libc)Classification of Wide Characters.
* iswgraph: (libc)Classification of Wide Characters.
* iswlower: (libc)Classification of Wide Characters.
* iswprint: (libc)Classification of Wide Characters.
* iswpunct: (libc)Classification of Wide Characters.
* iswspace: (libc)Classification of Wide Characters.
* iswupper: (libc)Classification of Wide Characters.
* iswxdigit: (libc)Classification of Wide Characters.
* isxdigit: (libc)Classification of Characters.
* iszero: (libc)Floating Point Classes.
* j0: (libc)Special Functions.
* j0f: (libc)Special Functions.
* j0fN: (libc)Special Functions.
* j0fNx: (libc)Special Functions.
* j0l: (libc)Special Functions.
* j1: (libc)Special Functions.
* j1f: (libc)Special Functions.
* j1fN: (libc)Special Functions.
* j1fNx: (libc)Special Functions.
* j1l: (libc)Special Functions.
* jn: (libc)Special Functions.
* jnf: (libc)Special Functions.
* jnfN: (libc)Special Functions.
* jnfNx: (libc)Special Functions.
* jnl: (libc)Special Functions.
* jrand48: (libc)SVID Random.
* jrand48_r: (libc)SVID Random.
* kill: (libc)Signaling Another Process.
* killpg: (libc)Signaling Another Process.
* l64a: (libc)Encode Binary Data.
* labs: (libc)Absolute Value.
* lcong48: (libc)SVID Random.
* lcong48_r: (libc)SVID Random.
* ldexp: (libc)Normalization Functions.
* ldexpf: (libc)Normalization Functions.
* ldexpfN: (libc)Normalization Functions.
* ldexpfNx: (libc)Normalization Functions.
* ldexpl: (libc)Normalization Functions.
* ldiv: (libc)Integer Division.
* lfind: (libc)Array Search Function.
* lgamma: (libc)Special Functions.
* lgamma_r: (libc)Special Functions.
* lgammaf: (libc)Special Functions.
* lgammafN: (libc)Special Functions.
* lgammafN_r: (libc)Special Functions.
* lgammafNx: (libc)Special Functions.
* lgammafNx_r: (libc)Special Functions.
* lgammaf_r: (libc)Special Functions.
* lgammal: (libc)Special Functions.
* lgammal_r: (libc)Special Functions.
* link: (libc)Hard Links.
* linkat: (libc)Hard Links.
* lio_listio64: (libc)Asynchronous Reads/Writes.
* lio_listio: (libc)Asynchronous Reads/Writes.
* listen: (libc)Listening.
* llabs: (libc)Absolute Value.
* lldiv: (libc)Integer Division.
* llogb: (libc)Exponents and Logarithms.
* llogbf: (libc)Exponents and Logarithms.
* llogbfN: (libc)Exponents and Logarithms.
* llogbfNx: (libc)Exponents and Logarithms.
* llogbl: (libc)Exponents and Logarithms.
* llrint: (libc)Rounding Functions.
* llrintf: (libc)Rounding Functions.
* llrintfN: (libc)Rounding Functions.
* llrintfNx: (libc)Rounding Functions.
* llrintl: (libc)Rounding Functions.
* llround: (libc)Rounding Functions.
* llroundf: (libc)Rounding Functions.
* llroundfN: (libc)Rounding Functions.
* llroundfNx: (libc)Rounding Functions.
* llroundl: (libc)Rounding Functions.
* localeconv: (libc)The Lame Way to Locale Data.
* localtime: (libc)Broken-down Time.
* localtime_r: (libc)Broken-down Time.
* log10: (libc)Exponents and Logarithms.
* log10f: (libc)Exponents and Logarithms.
* log10fN: (libc)Exponents and Logarithms.
* log10fNx: (libc)Exponents and Logarithms.
* log10l: (libc)Exponents and Logarithms.
* log10p1: (libc)Exponents and Logarithms.
* log10p1f: (libc)Exponents and Logarithms.
* log10p1fN: (libc)Exponents and Logarithms.
* log10p1fNx: (libc)Exponents and Logarithms.
* log10p1l: (libc)Exponents and Logarithms.
* log1p: (libc)Exponents and Logarithms.
* log1pf: (libc)Exponents and Logarithms.
* log1pfN: (libc)Exponents and Logarithms.
* log1pfNx: (libc)Exponents and Logarithms.
* log1pl: (libc)Exponents and Logarithms.
* log2: (libc)Exponents and Logarithms.
* log2f: (libc)Exponents and Logarithms.
* log2fN: (libc)Exponents and Logarithms.
* log2fNx: (libc)Exponents and Logarithms.
* log2l: (libc)Exponents and Logarithms.
* log2p1: (libc)Exponents and Logarithms.
* log2p1f: (libc)Exponents and Logarithms.
* log2p1fN: (libc)Exponents and Logarithms.
* log2p1fNx: (libc)Exponents and Logarithms.
* log2p1l: (libc)Exponents and Logarithms.
* log: (libc)Exponents and Logarithms.
* logb: (libc)Exponents and Logarithms.
* logbf: (libc)Exponents and Logarithms.
* logbfN: (libc)Exponents and Logarithms.
* logbfNx: (libc)Exponents and Logarithms.
* logbl: (libc)Exponents and Logarithms.
* logf: (libc)Exponents and Logarithms.
* logfN: (libc)Exponents and Logarithms.
* logfNx: (libc)Exponents and Logarithms.
* login: (libc)Logging In and Out.
* login_tty: (libc)Logging In and Out.
* logl: (libc)Exponents and Logarithms.
* logout: (libc)Logging In and Out.
* logp1: (libc)Exponents and Logarithms.
* logp1f: (libc)Exponents and Logarithms.
* logp1fN: (libc)Exponents and Logarithms.
* logp1fNx: (libc)Exponents and Logarithms.
* logp1l: (libc)Exponents and Logarithms.
* logwtmp: (libc)Logging In and Out.
* longjmp: (libc)Non-Local Details.
* lrand48: (libc)SVID Random.
* lrand48_r: (libc)SVID Random.
* lrint: (libc)Rounding Functions.
* lrintf: (libc)Rounding Functions.
* lrintfN: (libc)Rounding Functions.
* lrintfNx: (libc)Rounding Functions.
* lrintl: (libc)Rounding Functions.
* lround: (libc)Rounding Functions.
* lroundf: (libc)Rounding Functions.
* lroundfN: (libc)Rounding Functions.
* lroundfNx: (libc)Rounding Functions.
* lroundl: (libc)Rounding Functions.
* lsearch: (libc)Array Search Function.
* lseek64: (libc)File Position Primitive.
* lseek: (libc)File Position Primitive.
* lstat64: (libc)Reading Attributes.
* lstat: (libc)Reading Attributes.
* lutimes: (libc)File Times.
* madvise: (libc)Memory-mapped I/O.
* makecontext: (libc)System V contexts.
* mallinfo2: (libc)Statistics of Malloc.
* malloc: (libc)Basic Allocation.
* mallopt: (libc)Malloc Tunable Parameters.
* mblen: (libc)Non-reentrant Character Conversion.
* mbrlen: (libc)Converting a Character.
* mbrtowc: (libc)Converting a Character.
* mbsinit: (libc)Keeping the state.
* mbsnrtowcs: (libc)Converting Strings.
* mbsrtowcs: (libc)Converting Strings.
* mbstowcs: (libc)Non-reentrant String Conversion.
* mbtowc: (libc)Non-reentrant Character Conversion.
* mcheck: (libc)Heap Consistency Checking.
* memalign: (libc)Aligned Memory Blocks.
* memalignment: (libc)Aligned Memory Blocks.
* memccpy: (libc)Copying Strings and Arrays.
* memchr: (libc)Search Functions.
* memcmp: (libc)String/Array Comparison.
* memcpy: (libc)Copying Strings and Arrays.
* memfd_create: (libc)Memory-mapped I/O.
* memfrob: (libc)Obfuscating Data.
* memmem: (libc)Search Functions.
* memmove: (libc)Copying Strings and Arrays.
* mempcpy: (libc)Copying Strings and Arrays.
* memrchr: (libc)Search Functions.
* memset: (libc)Copying Strings and Arrays.
* memset_explicit: (libc)Erasing Sensitive Data.
* mkdir: (libc)Creating Directories.
* mkdirat: (libc)Creating Directories.
* mkdtemp: (libc)Temporary Files.
* mkfifo: (libc)FIFO Special Files.
* mknod: (libc)Making Special Files.
* mkstemp: (libc)Temporary Files.
* mktemp: (libc)Temporary Files.
* mktime: (libc)Broken-down Time.
* mlock2: (libc)Page Lock Functions.
* mlock: (libc)Page Lock Functions.
* mlockall: (libc)Page Lock Functions.
* mmap64: (libc)Memory-mapped I/O.
* mmap: (libc)Memory-mapped I/O.
* modf: (libc)Rounding Functions.
* modff: (libc)Rounding Functions.
* modffN: (libc)Rounding Functions.
* modffNx: (libc)Rounding Functions.
* modfl: (libc)Rounding Functions.
* mount: (libc)Mount-Unmount-Remount.
* mprobe: (libc)Heap Consistency Checking.
* mprotect: (libc)Memory Protection.
* mrand48: (libc)SVID Random.
* mrand48_r: (libc)SVID Random.
* mremap: (libc)Memory-mapped I/O.
* mseal: (libc)Memory Protection.
* msync: (libc)Memory-mapped I/O.
* mtrace: (libc)Tracing malloc.
* mtx_destroy: (libc)ISO C Mutexes.
* mtx_init: (libc)ISO C Mutexes.
* mtx_lock: (libc)ISO C Mutexes.
* mtx_timedlock: (libc)ISO C Mutexes.
* mtx_trylock: (libc)ISO C Mutexes.
* mtx_unlock: (libc)ISO C Mutexes.
* munlock: (libc)Page Lock Functions.
* munlockall: (libc)Page Lock Functions.
* munmap: (libc)Memory-mapped I/O.
* muntrace: (libc)Tracing malloc.
* nan: (libc)FP Bit Twiddling.
* nanf: (libc)FP Bit Twiddling.
* nanfN: (libc)FP Bit Twiddling.
* nanfNx: (libc)FP Bit Twiddling.
* nanl: (libc)FP Bit Twiddling.
* nanosleep: (libc)Sleeping.
* nearbyint: (libc)Rounding Functions.
* nearbyintf: (libc)Rounding Functions.
* nearbyintfN: (libc)Rounding Functions.
* nearbyintfNx: (libc)Rounding Functions.
* nearbyintl: (libc)Rounding Functions.
* nextafter: (libc)FP Bit Twiddling.
* nextafterf: (libc)FP Bit Twiddling.
* nextafterfN: (libc)FP Bit Twiddling.
* nextafterfNx: (libc)FP Bit Twiddling.
* nextafterl: (libc)FP Bit Twiddling.
* nextdown: (libc)FP Bit Twiddling.
* nextdownf: (libc)FP Bit Twiddling.
* nextdownfN: (libc)FP Bit Twiddling.
* nextdownfNx: (libc)FP Bit Twiddling.
* nextdownl: (libc)FP Bit Twiddling.
* nexttoward: (libc)FP Bit Twiddling.
* nexttowardf: (libc)FP Bit Twiddling.
* nexttowardl: (libc)FP Bit Twiddling.
* nextup: (libc)FP Bit Twiddling.
* nextupf: (libc)FP Bit Twiddling.
* nextupfN: (libc)FP Bit Twiddling.
* nextupfNx: (libc)FP Bit Twiddling.
* nextupl: (libc)FP Bit Twiddling.
* nftw64: (libc)Working with Directory Trees.
* nftw: (libc)Working with Directory Trees.
* ngettext: (libc)Advanced gettext functions.
* nice: (libc)Traditional Scheduling Functions.
* nl_langinfo: (libc)The Elegant and Fast Way.
* nrand48: (libc)SVID Random.
* nrand48_r: (libc)SVID Random.
* ntohl: (libc)Byte Order.
* ntohs: (libc)Byte Order.
* ntp_adjtime: (libc)Setting and Adjusting the Time.
* ntp_gettime: (libc)Setting and Adjusting the Time.
* obstack_1grow: (libc)Growing Objects.
* obstack_1grow_fast: (libc)Extra Fast Growing.
* obstack_alignment_mask: (libc)Obstacks Data Alignment.
* obstack_alloc: (libc)Allocation in an Obstack.
* obstack_base: (libc)Status of an Obstack.
* obstack_blank: (libc)Growing Objects.
* obstack_blank_fast: (libc)Extra Fast Growing.
* obstack_chunk_size: (libc)Obstack Chunks.
* obstack_copy0: (libc)Allocation in an Obstack.
* obstack_copy: (libc)Allocation in an Obstack.
* obstack_finish: (libc)Growing Objects.
* obstack_free: (libc)Freeing Obstack Objects.
* obstack_grow0: (libc)Growing Objects.
* obstack_grow: (libc)Growing Objects.
* obstack_init: (libc)Preparing for Obstacks.
* obstack_int_grow: (libc)Growing Objects.
* obstack_int_grow_fast: (libc)Extra Fast Growing.
* obstack_next_free: (libc)Status of an Obstack.
* obstack_object_size: (libc)Growing Objects.
* obstack_object_size: (libc)Status of an Obstack.
* obstack_printf: (libc)Dynamic Output.
* obstack_ptr_grow: (libc)Growing Objects.
* obstack_ptr_grow_fast: (libc)Extra Fast Growing.
* obstack_room: (libc)Extra Fast Growing.
* obstack_vprintf: (libc)Variable Arguments Output.
* offsetof: (libc)Structure Measurement.
* on_exit: (libc)Cleanups on Exit.
* open64: (libc)Opening and Closing Files.
* open: (libc)Opening and Closing Files.
* open_memstream: (libc)String Streams.
* openat2: (libc)Opening and Closing Files.
* openat64: (libc)Opening and Closing Files.
* openat: (libc)Opening and Closing Files.
* opendir: (libc)Opening a Directory.
* openlog: (libc)openlog.
* openpty: (libc)Pseudo-Terminal Pairs.
* parse_printf_format: (libc)Parsing a Template String.
* pathconf: (libc)Pathconf.
* pause: (libc)Using Pause.
* pclose: (libc)Pipe to a Subprocess.
* perror: (libc)Error Messages.
* pidfd_getpid: (libc)Querying a Process.
* pipe: (libc)Creating a Pipe.
* pkey_alloc: (libc)Memory Protection.
* pkey_free: (libc)Memory Protection.
* pkey_get: (libc)Memory Protection.
* pkey_mprotect: (libc)Memory Protection.
* pkey_set: (libc)Memory Protection.
* poll: (libc)Other Low-Level I/O APIs.
* popen: (libc)Pipe to a Subprocess.
* posix_fallocate64: (libc)Storage Allocation.
* posix_fallocate: (libc)Storage Allocation.
* posix_memalign: (libc)Aligned Memory Blocks.
* posix_openpt: (libc)Allocation.
* pow: (libc)Exponents and Logarithms.
* powf: (libc)Exponents and Logarithms.
* powfN: (libc)Exponents and Logarithms.
* powfNx: (libc)Exponents and Logarithms.
* powl: (libc)Exponents and Logarithms.
* pown: (libc)Exponents and Logarithms.
* pownf: (libc)Exponents and Logarithms.
* pownfN: (libc)Exponents and Logarithms.
* pownfNx: (libc)Exponents and Logarithms.
* pownl: (libc)Exponents and Logarithms.
* powr: (libc)Exponents and Logarithms.
* powrf: (libc)Exponents and Logarithms.
* powrfN: (libc)Exponents and Logarithms.
* powrfNx: (libc)Exponents and Logarithms.
* powrl: (libc)Exponents and Logarithms.
* pread64: (libc)I/O Primitives.
* pread: (libc)I/O Primitives.
* preadv2: (libc)Scatter-Gather.
* preadv64: (libc)Scatter-Gather.
* preadv64v2: (libc)Scatter-Gather.
* preadv: (libc)Scatter-Gather.
* printf: (libc)Formatted Output Functions.
* printf_size: (libc)Predefined Printf Handlers.
* printf_size_info: (libc)Predefined Printf Handlers.
* psignal: (libc)Signal Messages.
* pthread_attr_destroy: (libc)Creating and Destroying Threads.
* pthread_attr_getaffinity_np: (libc)Thread CPU Affinity.
* pthread_attr_getdetachstate: (libc)Creating and Destroying Threads.
* pthread_attr_getsigmask_np: (libc)Initial Thread Signal Mask.
* pthread_attr_init: (libc)Creating and Destroying Threads.
* pthread_attr_setaffinity_np: (libc)Thread CPU Affinity.
* pthread_attr_setdetachstate: (libc)Creating and Destroying Threads.
* pthread_attr_setsigmask_np: (libc)Initial Thread Signal Mask.
* pthread_barrier_destroy: (libc)POSIX Barriers.
* pthread_barrier_init: (libc)POSIX Barriers.
* pthread_barrier_wait: (libc)POSIX Barriers.
* pthread_clockjoin_np: (libc)Joining Threads.
* pthread_cond_clockwait: (libc)Waiting with Explicit Clocks.
* pthread_create: (libc)Creating and Destroying Threads.
* pthread_detach: (libc)Creating and Destroying Threads.
* pthread_equal: (libc)POSIX Threads Other APIs.
* pthread_getaffinity_np: (libc)Thread CPU Affinity.
* pthread_getattr_default_np: (libc)Default Thread Attributes.
* pthread_getcpuclockid: (libc)POSIX Threads Other APIs.
* pthread_getname_np: (libc)Thread Names.
* pthread_getspecific: (libc)Thread-specific Data.
* pthread_gettid_np: (libc)Process Identification.
* pthread_join: (libc)Creating and Destroying Threads.
* pthread_key_create: (libc)Thread-specific Data.
* pthread_key_delete: (libc)Thread-specific Data.
* pthread_kill: (libc)Creating and Destroying Threads.
* pthread_mutex_clocklock: (libc)POSIX Mutexes.
* pthread_mutex_destroy: (libc)POSIX Mutexes.
* pthread_mutex_init: (libc)POSIX Mutexes.
* pthread_mutex_lock: (libc)POSIX Mutexes.
* pthread_mutex_timedlock: (libc)POSIX Mutexes.
* pthread_mutex_trylock: (libc)POSIX Mutexes.
* pthread_mutex_unlock: (libc)POSIX Mutexes.
* pthread_mutexattr_destroy: (libc)POSIX Mutexes.
* pthread_mutexattr_gettype: (libc)POSIX Mutexes.
* pthread_mutexattr_init: (libc)POSIX Mutexes.
* pthread_mutexattr_settype: (libc)POSIX Mutexes.
* pthread_once: (libc)POSIX Threads Other APIs.
* pthread_rwlock_clockrdlock: (libc)Waiting with Explicit Clocks.
* pthread_rwlock_clockwrlock: (libc)Waiting with Explicit Clocks.
* pthread_self: (libc)Creating and Destroying Threads.
* pthread_setaffinity_np: (libc)Thread CPU Affinity.
* pthread_setattr_default_np: (libc)Default Thread Attributes.
* pthread_setname_np: (libc)Thread Names.
* pthread_setspecific: (libc)Thread-specific Data.
* pthread_sigmask: (libc)POSIX Threads Other APIs.
* pthread_spin_destroy: (libc)POSIX Spin Locks.
* pthread_spin_init: (libc)POSIX Spin Locks.
* pthread_spin_lock: (libc)POSIX Spin Locks.
* pthread_spin_trylock: (libc)POSIX Spin Locks.
* pthread_spin_unlock: (libc)POSIX Spin Locks.
* pthread_timedjoin_np: (libc)Joining Threads.
* pthread_tryjoin_np: (libc)Joining Threads.
* ptsname: (libc)Allocation.
* ptsname_r: (libc)Allocation.
* putc: (libc)Simple Output.
* putc_unlocked: (libc)Simple Output.
* putchar: (libc)Simple Output.
* putchar_unlocked: (libc)Simple Output.
* putenv: (libc)Environment Access.
* putpwent: (libc)Writing a User Entry.
* puts: (libc)Simple Output.
* pututline: (libc)Manipulating the Database.
* pututxline: (libc)XPG Functions.
* putw: (libc)Simple Output.
* putwc: (libc)Simple Output.
* putwc_unlocked: (libc)Simple Output.
* putwchar: (libc)Simple Output.
* putwchar_unlocked: (libc)Simple Output.
* pwrite64: (libc)I/O Primitives.
* pwrite: (libc)I/O Primitives.
* pwritev2: (libc)Scatter-Gather.
* pwritev64: (libc)Scatter-Gather.
* pwritev64v2: (libc)Scatter-Gather.
* pwritev: (libc)Scatter-Gather.
* qecvt: (libc)System V Number Conversion.
* qecvt_r: (libc)System V Number Conversion.
* qfcvt: (libc)System V Number Conversion.
* qfcvt_r: (libc)System V Number Conversion.
* qgcvt: (libc)System V Number Conversion.
* qsort: (libc)Array Sort Function.
* raise: (libc)Signaling Yourself.
* rand: (libc)ISO Random.
* rand_r: (libc)ISO Random.
* random: (libc)BSD Random.
* random_r: (libc)BSD Random.
* rawmemchr: (libc)Search Functions.
* read: (libc)I/O Primitives.
* readdir64: (libc)Reading/Closing Directory.
* readdir64_r: (libc)Reading/Closing Directory.
* readdir: (libc)Reading/Closing Directory.
* readdir_r: (libc)Reading/Closing Directory.
* readlink: (libc)Symbolic Links.
* readv: (libc)Scatter-Gather.
* realloc: (libc)Changing Block Size.
* reallocarray: (libc)Changing Block Size.
* realpath: (libc)Symbolic Links.
* recv: (libc)Receiving Data.
* recvfrom: (libc)Receiving Datagrams.
* recvmsg: (libc)Other Socket APIs.
* regcomp: (libc)POSIX Regexp Compilation.
* regerror: (libc)Regexp Cleanup.
* regexec: (libc)Matching POSIX Regexps.
* regfree: (libc)Regexp Cleanup.
* register_printf_function: (libc)Registering New Conversions.
* remainder: (libc)Remainder Functions.
* remainderf: (libc)Remainder Functions.
* remainderfN: (libc)Remainder Functions.
* remainderfNx: (libc)Remainder Functions.
* remainderl: (libc)Remainder Functions.
* remove: (libc)Deleting Files.
* rename: (libc)Renaming Files.
* renameat: (libc)Renaming Files.
* rewind: (libc)File Positioning.
* rewinddir: (libc)Random Access Directory.
* rindex: (libc)Search Functions.
* rint: (libc)Rounding Functions.
* rintf: (libc)Rounding Functions.
* rintfN: (libc)Rounding Functions.
* rintfNx: (libc)Rounding Functions.
* rintl: (libc)Rounding Functions.
* rmdir: (libc)Deleting Files.
* rootn: (libc)Exponents and Logarithms.
* rootnf: (libc)Exponents and Logarithms.
* rootnfN: (libc)Exponents and Logarithms.
* rootnfNx: (libc)Exponents and Logarithms.
* rootnl: (libc)Exponents and Logarithms.
* round: (libc)Rounding Functions.
* roundeven: (libc)Rounding Functions.
* roundevenf: (libc)Rounding Functions.
* roundevenfN: (libc)Rounding Functions.
* roundevenfNx: (libc)Rounding Functions.
* roundevenl: (libc)Rounding Functions.
* roundf: (libc)Rounding Functions.
* roundfN: (libc)Rounding Functions.
* roundfNx: (libc)Rounding Functions.
* roundl: (libc)Rounding Functions.
* rpmatch: (libc)Yes-or-No Questions.
* rsqrt: (libc)Exponents and Logarithms.
* rsqrtf: (libc)Exponents and Logarithms.
* rsqrtfN: (libc)Exponents and Logarithms.
* rsqrtfNx: (libc)Exponents and Logarithms.
* rsqrtl: (libc)Exponents and Logarithms.
* sbrk: (libc)Resizing the Data Segment.
* scalb: (libc)Normalization Functions.
* scalbf: (libc)Normalization Functions.
* scalbl: (libc)Normalization Functions.
* scalbln: (libc)Normalization Functions.
* scalblnf: (libc)Normalization Functions.
* scalblnfN: (libc)Normalization Functions.
* scalblnfNx: (libc)Normalization Functions.
* scalblnl: (libc)Normalization Functions.
* scalbn: (libc)Normalization Functions.
* scalbnf: (libc)Normalization Functions.
* scalbnfN: (libc)Normalization Functions.
* scalbnfNx: (libc)Normalization Functions.
* scalbnl: (libc)Normalization Functions.
* scandir64: (libc)Scanning Directory Content.
* scandir: (libc)Scanning Directory Content.
* scanf: (libc)Formatted Input Functions.
* sched_get_priority_max: (libc)Basic Scheduling Functions.
* sched_get_priority_min: (libc)Basic Scheduling Functions.
* sched_getaffinity: (libc)CPU Affinity.
* sched_getattr: (libc)Extensible Scheduling.
* sched_getcpu: (libc)CPU Affinity.
* sched_getparam: (libc)Basic Scheduling Functions.
* sched_getscheduler: (libc)Basic Scheduling Functions.
* sched_rr_get_interval: (libc)Basic Scheduling Functions.
* sched_setaffinity: (libc)CPU Affinity.
* sched_setattr: (libc)Extensible Scheduling.
* sched_setparam: (libc)Basic Scheduling Functions.
* sched_setscheduler: (libc)Basic Scheduling Functions.
* sched_yield: (libc)Basic Scheduling Functions.
* secure_getenv: (libc)Environment Access.
* seed48: (libc)SVID Random.
* seed48_r: (libc)SVID Random.
* seekdir: (libc)Random Access Directory.
* select: (libc)Waiting for I/O.
* sem_clockwait: (libc)POSIX Semaphores.
* sem_close: (libc)POSIX Semaphores.
* sem_destroy: (libc)POSIX Semaphores.
* sem_getvalue: (libc)POSIX Semaphores.
* sem_init: (libc)POSIX Semaphores.
* sem_open: (libc)POSIX Semaphores.
* sem_post: (libc)POSIX Semaphores.
* sem_timedwait: (libc)POSIX Semaphores.
* sem_trywait: (libc)POSIX Semaphores.
* sem_unlink: (libc)POSIX Semaphores.
* sem_wait: (libc)POSIX Semaphores.
* semctl: (libc)Semaphores.
* semget: (libc)Semaphores.
* semop: (libc)Semaphores.
* semtimedop: (libc)Semaphores.
* send: (libc)Sending Data.
* sendmsg: (libc)Other Socket APIs.
* sendto: (libc)Sending Datagrams.
* setbuf: (libc)Controlling Buffering.
* setbuffer: (libc)Controlling Buffering.
* setcontext: (libc)System V contexts.
* setdomainname: (libc)Host Identification.
* setegid: (libc)Setting Groups.
* setenv: (libc)Environment Access.
* seteuid: (libc)Setting User ID.
* setfsent: (libc)fstab.
* setgid: (libc)Setting Groups.
* setgrent: (libc)Scanning All Groups.
* setgroups: (libc)Setting Groups.
* sethostent: (libc)Host Names.
* sethostid: (libc)Host Identification.
* sethostname: (libc)Host Identification.
* setitimer: (libc)Setting an Alarm.
* setjmp: (libc)Non-Local Details.
* setlinebuf: (libc)Controlling Buffering.
* setlocale: (libc)Setting the Locale.
* setlogmask: (libc)setlogmask.
* setmntent: (libc)mtab.
* setnetent: (libc)Networks Database.
* setnetgrent: (libc)Lookup Netgroup.
* setpayload: (libc)FP Bit Twiddling.
* setpayloadf: (libc)FP Bit Twiddling.
* setpayloadfN: (libc)FP Bit Twiddling.
* setpayloadfNx: (libc)FP Bit Twiddling.
* setpayloadl: (libc)FP Bit Twiddling.
* setpayloadsig: (libc)FP Bit Twiddling.
* setpayloadsigf: (libc)FP Bit Twiddling.
* setpayloadsigfN: (libc)FP Bit Twiddling.
* setpayloadsigfNx: (libc)FP Bit Twiddling.
* setpayloadsigl: (libc)FP Bit Twiddling.
* setpgid: (libc)Process Group Functions.
* setpgrp: (libc)Process Group Functions.
* setpriority: (libc)Traditional Scheduling Functions.
* setprotoent: (libc)Protocols Database.
* setpwent: (libc)Scanning All Users.
* setregid: (libc)Setting Groups.
* setreuid: (libc)Setting User ID.
* setrlimit64: (libc)Limits on Resources.
* setrlimit: (libc)Limits on Resources.
* setservent: (libc)Services Database.
* setsid: (libc)Process Group Functions.
* setsockopt: (libc)Socket Option Functions.
* setstate: (libc)BSD Random.
* setstate_r: (libc)BSD Random.
* settimeofday: (libc)Setting and Adjusting the Time.
* setuid: (libc)Setting User ID.
* setutent: (libc)Manipulating the Database.
* setutxent: (libc)XPG Functions.
* setvbuf: (libc)Controlling Buffering.
* shm_open: (libc)Memory-mapped I/O.
* shm_unlink: (libc)Memory-mapped I/O.
* shutdown: (libc)Closing a Socket.
* sigabbrev_np: (libc)Signal Messages.
* sigaction: (libc)Advanced Signal Handling.
* sigaddset: (libc)Signal Sets.
* sigaltstack: (libc)Signal Stack.
* sigblock: (libc)BSD Signal Handling.
* sigdelset: (libc)Signal Sets.
* sigdescr_np: (libc)Signal Messages.
* sigemptyset: (libc)Signal Sets.
* sigfillset: (libc)Signal Sets.
* siginterrupt: (libc)BSD Signal Handling.
* sigismember: (libc)Signal Sets.
* siglongjmp: (libc)Non-Local Exits and Signals.
* sigmask: (libc)BSD Signal Handling.
* signal: (libc)Basic Signal Handling.
* signbit: (libc)FP Bit Twiddling.
* significand: (libc)Normalization Functions.
* significandf: (libc)Normalization Functions.
* significandl: (libc)Normalization Functions.
* sigpause: (libc)BSD Signal Handling.
* sigpending: (libc)Checking for Pending Signals.
* sigprocmask: (libc)Process Signal Mask.
* sigsetjmp: (libc)Non-Local Exits and Signals.
* sigsetmask: (libc)BSD Signal Handling.
* sigstack: (libc)Signal Stack.
* sigsuspend: (libc)Sigsuspend.
* sin: (libc)Trig Functions.
* sincos: (libc)Trig Functions.
* sincosf: (libc)Trig Functions.
* sincosfN: (libc)Trig Functions.
* sincosfNx: (libc)Trig Functions.
* sincosl: (libc)Trig Functions.
* sinf: (libc)Trig Functions.
* sinfN: (libc)Trig Functions.
* sinfNx: (libc)Trig Functions.
* sinh: (libc)Hyperbolic Functions.
* sinhf: (libc)Hyperbolic Functions.
* sinhfN: (libc)Hyperbolic Functions.
* sinhfNx: (libc)Hyperbolic Functions.
* sinhl: (libc)Hyperbolic Functions.
* sinl: (libc)Trig Functions.
* sinpi: (libc)Trig Functions.
* sinpif: (libc)Trig Functions.
* sinpifN: (libc)Trig Functions.
* sinpifNx: (libc)Trig Functions.
* sinpil: (libc)Trig Functions.
* sleep: (libc)Sleeping.
* snprintf: (libc)Formatted Output Functions.
* socket: (libc)Creating a Socket.
* socketpair: (libc)Socket Pairs.
* sprintf: (libc)Formatted Output Functions.
* sqrt: (libc)Exponents and Logarithms.
* sqrtf: (libc)Exponents and Logarithms.
* sqrtfN: (libc)Exponents and Logarithms.
* sqrtfNx: (libc)Exponents and Logarithms.
* sqrtl: (libc)Exponents and Logarithms.
* srand48: (libc)SVID Random.
* srand48_r: (libc)SVID Random.
* srand: (libc)ISO Random.
* srandom: (libc)BSD Random.
* srandom_r: (libc)BSD Random.
* sscanf: (libc)Formatted Input Functions.
* ssignal: (libc)Basic Signal Handling.
* stat64: (libc)Reading Attributes.
* stat: (libc)Reading Attributes.
* stdc_bit_ceil_uc: (libc)Bit Manipulation.
* stdc_bit_ceil_ui: (libc)Bit Manipulation.
* stdc_bit_ceil_ul: (libc)Bit Manipulation.
* stdc_bit_ceil_ull: (libc)Bit Manipulation.
* stdc_bit_ceil_us: (libc)Bit Manipulation.
* stdc_bit_floor_uc: (libc)Bit Manipulation.
* stdc_bit_floor_ui: (libc)Bit Manipulation.
* stdc_bit_floor_ul: (libc)Bit Manipulation.
* stdc_bit_floor_ull: (libc)Bit Manipulation.
* stdc_bit_floor_us: (libc)Bit Manipulation.
* stdc_bit_width_uc: (libc)Bit Manipulation.
* stdc_bit_width_ui: (libc)Bit Manipulation.
* stdc_bit_width_ul: (libc)Bit Manipulation.
* stdc_bit_width_ull: (libc)Bit Manipulation.
* stdc_bit_width_us: (libc)Bit Manipulation.
* stdc_count_ones_uc: (libc)Bit Manipulation.
* stdc_count_ones_ui: (libc)Bit Manipulation.
* stdc_count_ones_ul: (libc)Bit Manipulation.
* stdc_count_ones_ull: (libc)Bit Manipulation.
* stdc_count_ones_us: (libc)Bit Manipulation.
* stdc_count_zeros_uc: (libc)Bit Manipulation.
* stdc_count_zeros_ui: (libc)Bit Manipulation.
* stdc_count_zeros_ul: (libc)Bit Manipulation.
* stdc_count_zeros_ull: (libc)Bit Manipulation.
* stdc_count_zeros_us: (libc)Bit Manipulation.
* stdc_first_leading_one_uc: (libc)Bit Manipulation.
* stdc_first_leading_one_ui: (libc)Bit Manipulation.
* stdc_first_leading_one_ul: (libc)Bit Manipulation.
* stdc_first_leading_one_ull: (libc)Bit Manipulation.
* stdc_first_leading_one_us: (libc)Bit Manipulation.
* stdc_first_leading_zero_uc: (libc)Bit Manipulation.
* stdc_first_leading_zero_ui: (libc)Bit Manipulation.
* stdc_first_leading_zero_ul: (libc)Bit Manipulation.
* stdc_first_leading_zero_ull: (libc)Bit Manipulation.
* stdc_first_leading_zero_us: (libc)Bit Manipulation.
* stdc_first_trailing_one_uc: (libc)Bit Manipulation.
* stdc_first_trailing_one_ui: (libc)Bit Manipulation.
* stdc_first_trailing_one_ul: (libc)Bit Manipulation.
* stdc_first_trailing_one_ull: (libc)Bit Manipulation.
* stdc_first_trailing_one_us: (libc)Bit Manipulation.
* stdc_first_trailing_zero_uc: (libc)Bit Manipulation.
* stdc_first_trailing_zero_ui: (libc)Bit Manipulation.
* stdc_first_trailing_zero_ul: (libc)Bit Manipulation.
* stdc_first_trailing_zero_ull: (libc)Bit Manipulation.
* stdc_first_trailing_zero_us: (libc)Bit Manipulation.
* stdc_has_single_bit_uc: (libc)Bit Manipulation.
* stdc_has_single_bit_ui: (libc)Bit Manipulation.
* stdc_has_single_bit_ul: (libc)Bit Manipulation.
* stdc_has_single_bit_ull: (libc)Bit Manipulation.
* stdc_has_single_bit_us: (libc)Bit Manipulation.
* stdc_leading_ones_uc: (libc)Bit Manipulation.
* stdc_leading_ones_ui: (libc)Bit Manipulation.
* stdc_leading_ones_ul: (libc)Bit Manipulation.
* stdc_leading_ones_ull: (libc)Bit Manipulation.
* stdc_leading_ones_us: (libc)Bit Manipulation.
* stdc_leading_zeros_uc: (libc)Bit Manipulation.
* stdc_leading_zeros_ui: (libc)Bit Manipulation.
* stdc_leading_zeros_ul: (libc)Bit Manipulation.
* stdc_leading_zeros_ull: (libc)Bit Manipulation.
* stdc_leading_zeros_us: (libc)Bit Manipulation.
* stdc_trailing_ones_uc: (libc)Bit Manipulation.
* stdc_trailing_ones_ui: (libc)Bit Manipulation.
* stdc_trailing_ones_ul: (libc)Bit Manipulation.
* stdc_trailing_ones_ull: (libc)Bit Manipulation.
* stdc_trailing_ones_us: (libc)Bit Manipulation.
* stdc_trailing_zeros_uc: (libc)Bit Manipulation.
* stdc_trailing_zeros_ui: (libc)Bit Manipulation.
* stdc_trailing_zeros_ul: (libc)Bit Manipulation.
* stdc_trailing_zeros_ull: (libc)Bit Manipulation.
* stdc_trailing_zeros_us: (libc)Bit Manipulation.
* stime: (libc)Setting and Adjusting the Time.
* stpcpy: (libc)Copying Strings and Arrays.
* stpncpy: (libc)Truncating Strings.
* strcasecmp: (libc)String/Array Comparison.
* strcasestr: (libc)Search Functions.
* strcat: (libc)Concatenating Strings.
* strchr: (libc)Search Functions.
* strchrnul: (libc)Search Functions.
* strcmp: (libc)String/Array Comparison.
* strcoll: (libc)Collation Functions.
* strcpy: (libc)Copying Strings and Arrays.
* strcspn: (libc)Search Functions.
* strdup: (libc)Copying Strings and Arrays.
* strdupa: (libc)Copying Strings and Arrays.
* strerror: (libc)Error Messages.
* strerror_l: (libc)Error Messages.
* strerror_r: (libc)Error Messages.
* strerror_r: (libc)Error Messages.
* strerrordesc_np: (libc)Error Messages.
* strerrorname_np: (libc)Error Messages.
* strfmon: (libc)Formatting Numbers.
* strfromd: (libc)Printing of Floats.
* strfromf: (libc)Printing of Floats.
* strfromfN: (libc)Printing of Floats.
* strfromfNx: (libc)Printing of Floats.
* strfroml: (libc)Printing of Floats.
* strfry: (libc)Shuffling Bytes.
* strftime: (libc)Formatting Calendar Time.
* strftime_l: (libc)Formatting Calendar Time.
* strlcat: (libc)Truncating Strings.
* strlcpy: (libc)Truncating Strings.
* strlen: (libc)String Length.
* strncasecmp: (libc)String/Array Comparison.
* strncat: (libc)Truncating Strings.
* strncmp: (libc)String/Array Comparison.
* strncpy: (libc)Truncating Strings.
* strndup: (libc)Truncating Strings.
* strndupa: (libc)Truncating Strings.
* strnlen: (libc)String Length.
* strpbrk: (libc)Search Functions.
* strptime: (libc)Low-Level Time String Parsing.
* strrchr: (libc)Search Functions.
* strsep: (libc)Finding Tokens in a String.
* strsignal: (libc)Signal Messages.
* strspn: (libc)Search Functions.
* strstr: (libc)Search Functions.
* strtod: (libc)Parsing of Floats.
* strtof: (libc)Parsing of Floats.
* strtofN: (libc)Parsing of Floats.
* strtofNx: (libc)Parsing of Floats.
* strtoimax: (libc)Parsing of Integers.
* strtok: (libc)Finding Tokens in a String.
* strtok_r: (libc)Finding Tokens in a String.
* strtol: (libc)Parsing of Integers.
* strtold: (libc)Parsing of Floats.
* strtoll: (libc)Parsing of Integers.
* strtoq: (libc)Parsing of Integers.
* strtoul: (libc)Parsing of Integers.
* strtoull: (libc)Parsing of Integers.
* strtoumax: (libc)Parsing of Integers.
* strtouq: (libc)Parsing of Integers.
* strverscmp: (libc)String/Array Comparison.
* strxfrm: (libc)Collation Functions.
* stty: (libc)BSD Terminal Modes.
* swapcontext: (libc)System V contexts.
* swprintf: (libc)Formatted Output Functions.
* swscanf: (libc)Formatted Input Functions.
* symlink: (libc)Symbolic Links.
* sync: (libc)Synchronizing I/O.
* syscall: (libc)System Calls.
* sysconf: (libc)Sysconf Definition.
* syslog: (libc)syslog; vsyslog.
* system: (libc)Running a Command.
* sysv_signal: (libc)Basic Signal Handling.
* tan: (libc)Trig Functions.
* tanf: (libc)Trig Functions.
* tanfN: (libc)Trig Functions.
* tanfNx: (libc)Trig Functions.
* tanh: (libc)Hyperbolic Functions.
* tanhf: (libc)Hyperbolic Functions.
* tanhfN: (libc)Hyperbolic Functions.
* tanhfNx: (libc)Hyperbolic Functions.
* tanhl: (libc)Hyperbolic Functions.
* tanl: (libc)Trig Functions.
* tanpi: (libc)Trig Functions.
* tanpif: (libc)Trig Functions.
* tanpifN: (libc)Trig Functions.
* tanpifNx: (libc)Trig Functions.
* tanpil: (libc)Trig Functions.
* tcdrain: (libc)Line Control.
* tcflow: (libc)Line Control.
* tcflush: (libc)Line Control.
* tcgetattr: (libc)Mode Functions.
* tcgetpgrp: (libc)Terminal Access Functions.
* tcgetsid: (libc)Terminal Access Functions.
* tcsendbreak: (libc)Line Control.
* tcsetattr: (libc)Mode Functions.
* tcsetpgrp: (libc)Terminal Access Functions.
* tdelete: (libc)Tree Search Function.
* tdestroy: (libc)Tree Search Function.
* telldir: (libc)Random Access Directory.
* tempnam: (libc)Temporary Files.
* textdomain: (libc)Locating gettext catalog.
* tfind: (libc)Tree Search Function.
* tgamma: (libc)Special Functions.
* tgammaf: (libc)Special Functions.
* tgammafN: (libc)Special Functions.
* tgammafNx: (libc)Special Functions.
* tgammal: (libc)Special Functions.
* tgkill: (libc)Signaling Another Process.
* thrd_create: (libc)ISO C Thread Management.
* thrd_current: (libc)ISO C Thread Management.
* thrd_detach: (libc)ISO C Thread Management.
* thrd_equal: (libc)ISO C Thread Management.
* thrd_exit: (libc)ISO C Thread Management.
* thrd_join: (libc)ISO C Thread Management.
* thrd_sleep: (libc)ISO C Thread Management.
* thrd_yield: (libc)ISO C Thread Management.
* time: (libc)Getting the Time.
* timegm: (libc)Broken-down Time.
* timelocal: (libc)Broken-down Time.
* times: (libc)Processor Time.
* timespec_get: (libc)Getting the Time.
* timespec_getres: (libc)Getting the Time.
* tmpfile64: (libc)Temporary Files.
* tmpfile: (libc)Temporary Files.
* tmpnam: (libc)Temporary Files.
* tmpnam_r: (libc)Temporary Files.
* toascii: (libc)Case Conversion.
* tolower: (libc)Case Conversion.
* totalorder: (libc)FP Comparison Functions.
* totalorderf: (libc)FP Comparison Functions.
* totalorderfN: (libc)FP Comparison Functions.
* totalorderfNx: (libc)FP Comparison Functions.
* totalorderl: (libc)FP Comparison Functions.
* totalordermag: (libc)FP Comparison Functions.
* totalordermagf: (libc)FP Comparison Functions.
* totalordermagfN: (libc)FP Comparison Functions.
* totalordermagfNx: (libc)FP Comparison Functions.
* totalordermagl: (libc)FP Comparison Functions.
* toupper: (libc)Case Conversion.
* towctrans: (libc)Wide Character Case Conversion.
* towlower: (libc)Wide Character Case Conversion.
* towupper: (libc)Wide Character Case Conversion.
* trunc: (libc)Rounding Functions.
* truncate64: (libc)File Size.
* truncate: (libc)File Size.
* truncf: (libc)Rounding Functions.
* truncfN: (libc)Rounding Functions.
* truncfNx: (libc)Rounding Functions.
* truncl: (libc)Rounding Functions.
* tsearch: (libc)Tree Search Function.
* tss_create: (libc)ISO C Thread-local Storage.
* tss_delete: (libc)ISO C Thread-local Storage.
* tss_get: (libc)ISO C Thread-local Storage.
* tss_set: (libc)ISO C Thread-local Storage.
* ttyname: (libc)Is It a Terminal.
* ttyname_r: (libc)Is It a Terminal.
* twalk: (libc)Tree Search Function.
* twalk_r: (libc)Tree Search Function.
* tzset: (libc)Time Zone State.
* uabs: (libc)Absolute Value.
* ufromfp: (libc)Rounding Functions.
* ufromfpf: (libc)Rounding Functions.
* ufromfpfN: (libc)Rounding Functions.
* ufromfpfNx: (libc)Rounding Functions.
* ufromfpl: (libc)Rounding Functions.
* ufromfpx: (libc)Rounding Functions.
* ufromfpxf: (libc)Rounding Functions.
* ufromfpxfN: (libc)Rounding Functions.
* ufromfpxfNx: (libc)Rounding Functions.
* ufromfpxl: (libc)Rounding Functions.
* ulabs: (libc)Absolute Value.
* ulimit: (libc)Limits on Resources.
* ullabs: (libc)Absolute Value.
* umask: (libc)Setting Permissions.
* umaxabs: (libc)Absolute Value.
* umount2: (libc)Mount-Unmount-Remount.
* umount: (libc)Mount-Unmount-Remount.
* uname: (libc)Platform Type.
* ungetc: (libc)How Unread.
* ungetwc: (libc)How Unread.
* unlink: (libc)Deleting Files.
* unlinkat: (libc)Deleting Files.
* unlockpt: (libc)Allocation.
* unsetenv: (libc)Environment Access.
* updwtmp: (libc)Manipulating the Database.
* utime: (libc)File Times.
* utimensat: (libc)File Times.
* utimes: (libc)File Times.
* utmpname: (libc)Manipulating the Database.
* utmpxname: (libc)XPG Functions.
* va_arg: (libc)Argument Macros.
* va_copy: (libc)Argument Macros.
* va_end: (libc)Argument Macros.
* va_start: (libc)Argument Macros.
* valloc: (libc)Aligned Memory Blocks.
* vasprintf: (libc)Variable Arguments Output.
* vdprintf: (libc)Variable Arguments Output.
* verr: (libc)Error Messages.
* verrx: (libc)Error Messages.
* versionsort64: (libc)Scanning Directory Content.
* versionsort: (libc)Scanning Directory Content.
* vfork: (libc)Creating a Process.
* vfprintf: (libc)Variable Arguments Output.
* vfscanf: (libc)Variable Arguments Input.
* vfwprintf: (libc)Variable Arguments Output.
* vfwscanf: (libc)Variable Arguments Input.
* vlimit: (libc)Limits on Resources.
* vprintf: (libc)Variable Arguments Output.
* vscanf: (libc)Variable Arguments Input.
* vsnprintf: (libc)Variable Arguments Output.
* vsprintf: (libc)Variable Arguments Output.
* vsscanf: (libc)Variable Arguments Input.
* vswprintf: (libc)Variable Arguments Output.
* vswscanf: (libc)Variable Arguments Input.
* vsyslog: (libc)syslog; vsyslog.
* vwarn: (libc)Error Messages.
* vwarnx: (libc)Error Messages.
* vwprintf: (libc)Variable Arguments Output.
* vwscanf: (libc)Variable Arguments Input.
* wait3: (libc)BSD Wait Functions.
* wait4: (libc)Process Completion.
* wait: (libc)Process Completion.
* waitpid: (libc)Process Completion.
* warn: (libc)Error Messages.
* warnx: (libc)Error Messages.
* wcpcpy: (libc)Copying Strings and Arrays.
* wcpncpy: (libc)Truncating Strings.
* wcrtomb: (libc)Converting a Character.
* wcscasecmp: (libc)String/Array Comparison.
* wcscat: (libc)Concatenating Strings.
* wcschr: (libc)Search Functions.
* wcschrnul: (libc)Search Functions.
* wcscmp: (libc)String/Array Comparison.
* wcscoll: (libc)Collation Functions.
* wcscpy: (libc)Copying Strings and Arrays.
* wcscspn: (libc)Search Functions.
* wcsdup: (libc)Copying Strings and Arrays.
* wcsftime: (libc)Formatting Calendar Time.
* wcslcat: (libc)Truncating Strings.
* wcslcpy: (libc)Truncating Strings.
* wcslen: (libc)String Length.
* wcsncasecmp: (libc)String/Array Comparison.
* wcsncat: (libc)Truncating Strings.
* wcsncmp: (libc)String/Array Comparison.
* wcsncpy: (libc)Truncating Strings.
* wcsnlen: (libc)String Length.
* wcsnrtombs: (libc)Converting Strings.
* wcspbrk: (libc)Search Functions.
* wcsrchr: (libc)Search Functions.
* wcsrtombs: (libc)Converting Strings.
* wcsspn: (libc)Search Functions.
* wcsstr: (libc)Search Functions.
* wcstod: (libc)Parsing of Floats.
* wcstof: (libc)Parsing of Floats.
* wcstofN: (libc)Parsing of Floats.
* wcstofNx: (libc)Parsing of Floats.
* wcstoimax: (libc)Parsing of Integers.
* wcstok: (libc)Finding Tokens in a String.
* wcstol: (libc)Parsing of Integers.
* wcstold: (libc)Parsing of Floats.
* wcstoll: (libc)Parsing of Integers.
* wcstombs: (libc)Non-reentrant String Conversion.
* wcstoq: (libc)Parsing of Integers.
* wcstoul: (libc)Parsing of Integers.
* wcstoull: (libc)Parsing of Integers.
* wcstoumax: (libc)Parsing of Integers.
* wcstouq: (libc)Parsing of Integers.
* wcswcs: (libc)Search Functions.
* wcsxfrm: (libc)Collation Functions.
* wctob: (libc)Converting a Character.
* wctomb: (libc)Non-reentrant Character Conversion.
* wctrans: (libc)Wide Character Case Conversion.
* wctype: (libc)Classification of Wide Characters.
* wmemchr: (libc)Search Functions.
* wmemcmp: (libc)String/Array Comparison.
* wmemcpy: (libc)Copying Strings and Arrays.
* wmemmove: (libc)Copying Strings and Arrays.
* wmempcpy: (libc)Copying Strings and Arrays.
* wmemset: (libc)Copying Strings and Arrays.
* wordexp: (libc)Calling Wordexp.
* wordfree: (libc)Calling Wordexp.
* wprintf: (libc)Formatted Output Functions.
* write: (libc)I/O Primitives.
* writev: (libc)Scatter-Gather.
* wscanf: (libc)Formatted Input Functions.
* y0: (libc)Special Functions.
* y0f: (libc)Special Functions.
* y0fN: (libc)Special Functions.
* y0fNx: (libc)Special Functions.
* y0l: (libc)Special Functions.
* y1: (libc)Special Functions.
* y1f: (libc)Special Functions.
* y1fN: (libc)Special Functions.
* y1fNx: (libc)Special Functions.
* y1l: (libc)Special Functions.
* yn: (libc)Special Functions.
* ynf: (libc)Special Functions.
* ynfN: (libc)Special Functions.
* ynfNx: (libc)Special Functions.
* ynl: (libc)Special Functions.
END-INFO-DIR-ENTRY


File: libc.info,  Node: Running make install,  Next: Tools for Compilation,  Prev: Configuring and compiling,  Up: Installation

C.2 Installing the C Library
============================

To install the library and its header files, and the Info files of the
manual, type ‘make install’.  This will build things, if necessary,
before installing them; however, you should still compile everything
first.  If you are installing the GNU C Library as your primary C
library, we recommend that you shut the system down to single-user mode
first, and reboot afterward.  This minimizes the risk of breaking things
when the library changes out from underneath.

   ‘make install’ will do the entire job of upgrading from a previous
installation of the GNU C Library version 2.x.  There may sometimes be
headers left behind from the previous installation, but those are
generally harmless.  If you want to avoid leaving headers behind you can
do things in the following order.

   You must first build the library (‘make’), optionally check it (‘make
check’), switch the include directories and then install (‘make
install’).  The steps must be done in this order.  Not moving the
directory before install will result in an unusable mixture of header
files from both libraries, but configuring, building, and checking the
library requires the ability to compile and run programs against the old
library.  The new ‘/usr/include’, after switching the include
directories and before installing the library should contain the Linux
headers, but nothing else.  If you do this, you will need to restore any
headers from libraries other than the GNU C Library yourself after
installing the library.

   You can install the GNU C Library somewhere other than where you
configured it to go by setting the ‘DESTDIR’ GNU standard make variable
on the command line for ‘make install’.  The value of this variable is
prepended to all the paths for installation.  This is useful when
setting up a chroot environment or preparing a binary distribution.  The
directory should be specified with an absolute file name.  Installing
with the ‘prefix’ and ‘exec_prefix’ GNU standard make variables set is
not supported.

   The GNU C Library includes a daemon called ‘nscd’, which you may or
may not want to run.  ‘nscd’ caches name service lookups; it can
dramatically improve performance with NIS+, and may help with DNS as
well.

   One auxiliary program, ‘/usr/libexec/pt_chown’, is installed setuid
‘root’ if the ‘--enable-pt_chown’ configuration option is used.  This
program is invoked by the ‘grantpt’ function; it sets the permissions on
a pseudoterminal so it can be used by the calling process.  If you are
using a Linux kernel with the ‘devpts’ filesystem enabled and mounted at
‘/dev/pts’, you don't need this program.

   After installation you should configure the time zone ruleset and
install locales for your system.  The time zone ruleset ensures that
timestamps are processed correctly for your location.  The locales
ensure that the display of information on your system matches the
expectations of your language and geographic region.

   The GNU C Library is able to use two kinds of localization
information sources, the first is a locale database named
‘locale-archive’ which is generally installed as
‘/usr/lib/locale/locale-archive’.  The locale archive has the benefit of
taking up less space and being very fast to load, but only if you plan
to install sixty or more locales.  If you plan to install one or two
locales you can instead install individual locales into their self-named
directories e.g. ‘/usr/lib/locale/en_US.utf8’.  For example to install
the German locale using the character set for UTF-8 with name ‘de_DE’
into the locale archive issue the command ‘localedef -i de_DE -f UTF-8
de_DE’, and to install just the one locale issue the command ‘localedef
--no-archive -i de_DE -f UTF-8 de_DE’.  To configure all locales that
are supported by the GNU C Library, you can issue from your build
directory the command ‘make localedata/install-locales’ to install all
locales into the locale archive or ‘make
localedata/install-locale-files’ to install all locales as files in the
default configured locale installation directory (derived from
‘--prefix’ or ‘--localedir’).  To install into an alternative system
root use ‘DESTDIR’ e.g. ‘make localedata/install-locale-files
DESTDIR=/opt/glibc’, but note that this does not change the configured
prefix.

   To configure the time zone ruleset, set the ‘TZ’ environment
variable.  The script ‘tzselect’ helps you to select the right value.
As an example, for Germany, ‘tzselect’ would tell you to use
‘TZ='Europe/Berlin'’.  For a system wide installation (the given paths
are for an installation with ‘--prefix=/usr’), link the time zone file
which is in ‘/usr/share/zoneinfo’ to the file ‘/etc/localtime’.  For
Germany, you might execute ‘ln -s /usr/share/zoneinfo/Europe/Berlin
/etc/localtime’.


File: libc.info,  Node: Tools for Compilation,  Next: Linux,  Prev: Running make install,  Up: Installation

C.3 Recommended Tools for Compilation
=====================================

We recommend installing the following GNU tools before attempting to
build the GNU C Library:

   • GNU ‘make’ 4.0 or newer

     As of release time, GNU ‘make’ 4.4.1 is the newest verified to work
     to build the GNU C Library.

   • GCC 12.1 or newer

     GCC 12.1 or higher is required.  In general it is recommended to
     use the newest version of the compiler that is known to work for
     building the GNU C Library, as newer compilers usually produce
     better code.  As of release time, GCC 15.2.1 is the newest compiler
     verified to work to build the GNU C Library.

     For multi-arch support it is recommended to use a GCC which has
     been built with support for GNU indirect functions.  This ensures
     that correct debugging information is generated for functions
     selected by IFUNC resolvers.  This support can either be enabled by
     configuring GCC with ‘--enable-gnu-indirect-function’, or by
     enabling it by default by setting ‘default_gnu_indirect_function’
     variable for a particular architecture in the GCC source file
     ‘gcc/config.gcc’.

     You can use whatever compiler you like to compile programs that use
     the GNU C Library.

     Check the FAQ for any special compiler issues on particular
     platforms.

   • GNU ‘binutils’ 2.39 or later

     You must use GNU ‘binutils’ (as and ld) to build the GNU C Library.
     No other assembler or linker has the necessary functionality at the
     moment.  As of release time, GNU ‘binutils’ 2.45.1 is the newest
     verified to work to build the GNU C Library.

   • GNU ‘texinfo’ 4.7 or later

     To correctly translate and install the Texinfo documentation you
     need this version of the ‘texinfo’ package.  Earlier versions do
     not understand all the tags used in the document, and the
     installation mechanism for the info files is not present or works
     differently.  As of release time, ‘texinfo’ 7.2 is the newest
     verified to work to build the GNU C Library.

   • GNU ‘awk’ 3.1.2, or higher

     ‘awk’ is used in several places to generate files.  Some ‘gawk’
     extensions are used, including the ‘asorti’ function, which was
     introduced in version 3.1.2 of ‘gawk’.  As of release time, ‘gawk’
     version 5.3.2 is the newest verified to work to build the GNU C
     Library.

     Testing the GNU C Library requires ‘gawk’ to be compiled with
     support for high precision arithmetic via the ‘MPFR’
     multiple-precision floating-point computation library.

   • GNU ‘bison’ 2.7 or later

     ‘bison’ is used to generate the ‘yacc’ parser code in the ‘intl’
     subdirectory.  As of release time, ‘bison’ version 3.8.2 is the
     newest verified to work to build the GNU C Library.

   • Perl 5

     Perl is not required, but if present it is used in some tests and
     the ‘mtrace’ program, to build the GNU C Library manual.  As of
     release time ‘perl’ version 5.42.0 is the newest verified to work
     to build the GNU C Library.

   • GNU ‘sed’ 3.02 or newer

     ‘Sed’ is used in several places to generate files.  Most scripts
     work with any version of ‘sed’.  As of release time, ‘sed’ version
     4.9 is the newest verified to work to build the GNU C Library.

   • Python 3.4 or later

     Python is required to build the GNU C Library.  As of release time,
     Python 3.14.0 is the newest verified to work for building and
     testing the GNU C Library.

   • PExpect 4.0

     The pretty printer tests drive GDB through test programs and
     compare its output to the printers'.  PExpect is used to capture
     the output of GDB, and should be compatible with the Python version
     in your system.  As of release time PExpect 4.9.0 is the newest
     verified to work to test the pretty printers.

   • The Python ‘abnf’ module.

     This module is optional and used to verify some ABNF grammars in
     the manual.  Version 2.2.0 has been confirmed to work as expected.
     A missing ‘abnf’ module does not reduce the test coverage of the
     library itself.

   • GDB 7.8 or later with support for Python 3.4 or later

     GDB itself needs to be configured with Python support in order to
     use the pretty printers.  Notice that your system having Python
     available doesn't imply that GDB supports it, nor that your
     system's Python and GDB's have the same version.  As of release
     time GNU ‘debugger’ 14.2 is the newest verified to work to test the
     pretty printers.

     Unless Python, PExpect and GDB with Python support are present, the
     printer tests will report themselves as ‘UNSUPPORTED’.  Notice that
     some of the printer tests require the GNU C Library to be compiled
     with debugging symbols.

If you change any of the ‘configure.ac’ files you will also need

   • GNU ‘autoconf’ 2.72 (exactly)

and if you change any of the message translation files you will need

   • GNU ‘gettext’ 0.10.36 or later

     As of release time, GNU ‘gettext’ version 0.23.2 is the newest
     version verified to work to build the GNU C Library.

You may also need these packages if you upgrade your source tree using
patches, although we try to avoid this.


File: libc.info,  Node: Linux,  Next: Reporting Bugs,  Prev: Tools for Compilation,  Up: Installation

C.4 Specific advice for GNU/Linux systems
=========================================

If you are installing the GNU C Library on GNU/Linux systems, you need
to have the header files from a 3.2 or newer kernel around for
reference.  These headers must be installed using ‘make
headers_install’; the headers present in the kernel source directory are
not suitable for direct use by the GNU C Library.  You do not need to
use that kernel, just have its headers installed where the GNU C Library
can access them, referred to here as INSTALL-DIRECTORY.  The easiest way
to do this is to unpack it in a directory such as
‘/usr/src/linux-VERSION’.  In that directory, run ‘make headers_install
INSTALL_HDR_PATH=INSTALL-DIRECTORY’.  Finally, configure the GNU C
Library with the option ‘--with-headers=INSTALL-DIRECTORY/include’.  Use
the most recent kernel you can get your hands on.  (If you are
cross-compiling the GNU C Library, you need to specify
‘ARCH=ARCHITECTURE’ in the ‘make headers_install’ command, where
ARCHITECTURE is the architecture name used by the Linux kernel, such as
‘x86’ or ‘powerpc’.)

   After installing the GNU C Library, you may need to remove or rename
directories such as ‘/usr/include/linux’ and ‘/usr/include/asm’, and
replace them with copies of directories such as ‘linux’ and ‘asm’ from
‘INSTALL-DIRECTORY/include’.  All directories present in
‘INSTALL-DIRECTORY/include’ should be copied, except that the GNU C
Library provides its own version of ‘/usr/include/scsi’; the files
provided by the kernel should be copied without replacing those provided
by the GNU C Library.  The ‘linux’, ‘asm’ and ‘asm-generic’ directories
are required to compile programs using the GNU C Library; the other
directories describe interfaces to the kernel but are not required if
not compiling programs using those interfaces.  You do not need to copy
kernel headers if you did not specify an alternate kernel header source
using ‘--with-headers’.

   The Filesystem Hierarchy Standard for GNU/Linux systems expects some
components of the GNU C Library installation to be in ‘/lib’ and some in
‘/usr/lib’.  This is handled automatically if you configure the GNU C
Library with ‘--prefix=/usr’.  If you set some other prefix or allow it
to default to ‘/usr/local’, then all the components are installed there.

   As of release time, Linux version 6.12 is the newest stable version
verified to work to build the GNU C Library.


File: libc.info,  Node: Reporting Bugs,  Prev: Linux,  Up: Installation

C.5 Reporting Bugs
==================

There are probably bugs in the GNU C Library.  There are certainly
errors and omissions in this manual.  If you report them, they will get
fixed.  If you don't, no one will ever know about them and they will
remain unfixed for all eternity, if not longer.

   It is a good idea to verify that the problem has not already been
reported.  Bugs are documented in two places: The file ‘BUGS’ describes
a number of well known bugs and the central GNU C Library bug tracking
system has a WWW interface at <https://sourceware.org/bugzilla/>.  The
WWW interface gives you access to open and closed reports.  A closed
report normally includes a patch or a hint on solving the problem.

   To report a bug, first you must find it.  With any luck, this will be
the hard part.  Once you've found a bug, make sure it's really a bug.  A
good way to do this is to see if the GNU C Library behaves the same way
some other C library does.  If so, probably you are wrong and the
libraries are right (but not necessarily).  If not, one of the libraries
is probably wrong.  It might not be the GNU C Library.  Many historical
Unix C libraries permit things that we don't, such as closing a file
twice.

   If you think you have found some way in which the GNU C Library does
not conform to the ISO and POSIX standards (*note Standards and
Portability::), that is definitely a bug.  Report it!

   Once you're sure you've found a bug, try to narrow it down to the
smallest test case that reproduces the problem.  In the case of a C
library, you really only need to narrow it down to one library function
call, if possible.  This should not be too difficult.

   The final step when you have a simple test case is to report the bug.
Do this at <https://www.gnu.org/software/libc/bugs.html>.

   If you are not sure how a function should behave, and this manual
doesn't tell you, that's a bug in the manual.  Report that too!  If the
function's behavior disagrees with the manual, then either the library
or the manual has a bug, so report the disagreement.  If you find any
errors or omissions in this manual, please report them to the bug
database.  If you refer to specific sections of the manual, please
include the section names for easier identification.


File: libc.info,  Node: Maintenance,  Next: Platform,  Prev: Installation,  Up: Top

Appendix D Library Maintenance
******************************

* Menu:

* Source Layout::         How to add new functions or header files
                             to the GNU C Library.
* Source Fortification::  Fortification of function calls.
* Symbol handling::       How to handle symbols in the GNU C Library.
* Porting::               How to port the GNU C Library to
                             a new machine or operating system.


File: libc.info,  Node: Source Layout,  Next: Source Fortification,  Up: Maintenance

D.1 Adding New Functions
========================

The process of building the library is driven by the makefiles, which
make heavy use of special features of GNU ‘make’.  The makefiles are
very complex, and you probably don't want to try to understand them.
But what they do is fairly straightforward, and only requires that you
define a few variables in the right places.

   The library sources are divided into subdirectories, grouped by
topic.

   The ‘string’ subdirectory has all the string-manipulation functions,
‘math’ has all the mathematical functions, etc.

   Each subdirectory contains a simple makefile, called ‘Makefile’,
which defines a few ‘make’ variables and then includes the global
makefile ‘Rules’ with a line like:

     include ../Rules

The basic variables that a subdirectory makefile defines are:

‘subdir’
     The name of the subdirectory, for example ‘stdio’.  This variable
     *must* be defined.

‘headers’
     The names of the header files in this section of the library, such
     as ‘stdio.h’.

‘routines’
‘aux’
     The names of the modules (source files) in this section of the
     library.  These should be simple names, such as ‘strlen’ (rather
     than complete file names, such as ‘strlen.c’).  Use ‘routines’ for
     modules that define functions in the library, and ‘aux’ for
     auxiliary modules containing things like data definitions.  But the
     values of ‘routines’ and ‘aux’ are just concatenated, so there
     really is no practical difference.

‘tests’
     The names of test programs for this section of the library.  These
     should be simple names, such as ‘tester’ (rather than complete file
     names, such as ‘tester.c’).  ‘make tests’ will build and run all
     the test programs.  If a test program needs input, put the test
     data in a file called ‘TEST-PROGRAM.input’; it will be given to the
     test program on its standard input.  If a test program wants to be
     run with arguments, put the arguments (all on a single line) in a
     file called ‘TEST-PROGRAM.args’.  Test programs should exit with
     zero status when the test passes, and nonzero status when the test
     indicates a bug in the library or error in building.

‘others’
     The names of "other" programs associated with this section of the
     library.  These are programs which are not tests per se, but are
     other small programs included with the library.  They are built by
     ‘make others’.

‘install-lib’
‘install-data’
‘install’
     Files to be installed by ‘make install’.  Files listed in
     ‘install-lib’ are installed in the directory specified by ‘libdir’
     in ‘configparms’ or ‘Makeconfig’ (*note Installation::).  Files
     listed in ‘install-data’ are installed in the directory specified
     by ‘datadir’ in ‘configparms’ or ‘Makeconfig’.  Files listed in
     ‘install’ are installed in the directory specified by ‘bindir’ in
     ‘configparms’ or ‘Makeconfig’.

‘distribute’
     Other files from this subdirectory which should be put into a
     distribution tar file.  You need not list here the makefile itself
     or the source and header files listed in the other standard
     variables.  Only define ‘distribute’ if there are files used in an
     unusual way that should go into the distribution.

‘generated’
     Files which are generated by ‘Makefile’ in this subdirectory.
     These files will be removed by ‘make clean’, and they will never go
     into a distribution.

‘extra-objs’
     Extra object files which are built by ‘Makefile’ in this
     subdirectory.  This should be a list of file names like ‘foo.o’;
     the files will actually be found in whatever directory object files
     are being built in.  These files will be removed by ‘make clean’.
     This variable is used for secondary object files needed to build
     ‘others’ or ‘tests’.

* Menu:

* Platform: Adding Platform-specific.             Adding platform-specific
                                         features.


File: libc.info,  Node: Adding Platform-specific,  Up: Source Layout

D.1.1 Platform-specific types, macros and functions
---------------------------------------------------

It's sometimes necessary to provide nonstandard, platform-specific
features to developers.  The C library is traditionally the lowest
library layer, so it makes sense for it to provide these low-level
features.  However, including these features in the C library may be a
disadvantage if another package provides them as well as there will be
two conflicting versions of them.  Also, the features won't be available
to projects that do not use the GNU C Library but use other GNU tools,
like GCC.

   The current guidelines are:
   • If the header file provides features that only make sense on a
     particular machine architecture and have nothing to do with an
     operating system, then the features should ultimately be provided
     as GCC built-in functions.  Until then, the GNU C Library may
     provide them in the header file.  When the GCC built-in functions
     become available, those provided in the header file should be made
     conditionally available prior to the GCC version in which the
     built-in function was made available.

   • If the header file provides features that are specific to an
     operating system, both GCC and the GNU C Library could provide it,
     but the GNU C Library is preferred as it already has a lot of
     information about the operating system.

   • If the header file provides features that are specific to an
     operating system but used by the GNU C Library, then the GNU C
     Library should provide them.

   The general solution for providing low-level features is to export
them as follows:

   • A nonstandard, low-level header file that defines macros and inline
     functions should be called ‘sys/platform/NAME.h’.

   • Each header file's name should include the platform name, to avoid
     users thinking there is anything in common between the different
     header files for different platforms.  For example, a
     ‘sys/platform/ARCH.h’ name such as ‘sys/platform/ppc.h’ is better
     than ‘sys/platform.h’.

   • A platform-specific header file provided by the GNU C Library
     should coordinate with GCC such that compiler built-in versions of
     the functions and macros are preferred if available.  This means
     that user programs will only ever need to include
     ‘sys/platform/ARCH.h’, keeping the same names of types, macros, and
     functions for convenience and portability.

   • Each included symbol must have the prefix ‘__ARCH_’, such as
     ‘__ppc_get_timebase’.

   The easiest way to provide a header file is to add it to the
‘sysdep_headers’ variable.  For example, the combination of
Linux-specific header files on PowerPC could be provided like this:

     sysdep_headers += sys/platform/ppc.h

   Then ensure that you have added a ‘sys/platform/ppc.h’ header file in
the machine-specific directory, e.g.,
‘sysdeps/powerpc/sys/platform/ppc.h’.


File: libc.info,  Node: Source Fortification,  Next: Symbol handling,  Prev: Source Layout,  Up: Maintenance

D.2 Fortification of function calls
===================================

This section contains implementation details of the GNU C Library and
may not remain stable across releases.

   The ‘_FORTIFY_SOURCE’ macro may be defined by users to control
hardening of calls into some functions in the GNU C Library.  The
definition should be at the top of the source file before any headers
are included or at the pre-processor commandline using the ‘-D’ switch.
The hardening primarily focuses on accesses to buffers passed to the
functions but may also include checks for validity of other inputs to
the functions.

   When the ‘_FORTIFY_SOURCE’ macro is defined, it enables code that
validates inputs passed to some functions in the GNU C Library to
determine if they are safe.  If the compiler is unable to determine that
the inputs to the function call are safe, the call may be replaced by a
call to its hardened variant that does additional safety checks at
runtime.  Some hardened variants need the size of the buffer to perform
access validation and this is provided by the ‘__builtin_object_size’ or
the ‘__builtin_dynamic_object_size’ builtin functions.
‘_FORTIFY_SOURCE’ also enables additional compile time diagnostics, such
as unchecked return values from some functions, to encourage developers
to add error checking for those functions.

   At runtime, if any of those safety checks fail, the program will
terminate with a ‘SIGABRT’ signal.  ‘_FORTIFY_SOURCE’ may be defined to
one of the following values:

   • 1: This enables buffer bounds checking using the value returned by
     the ‘__builtin_object_size’ compiler builtin function.  If the
     function returns ‘(size_t) -1’, the function call is left
     untouched.  Additionally, this level also enables validation of
     flags to the ‘open’, ‘open64’, ‘openat’ and ‘openat64’ functions.

   • 2: This behaves like 1, with the addition of some checks that may
     trap code that is conforming but unsafe, e.g.  accepting ‘%n’ only
     in read-only format strings.

   • 3: This enables buffer bounds checking using the value returned by
     the ‘__builtin_dynamic_object_size’ compiler builtin function.  If
     the function returns ‘(size_t) -1’, the function call is left
     untouched.  Fortification at this level may have a impact on
     program performance if the function call that is fortified is
     frequently encountered and the size expression returned by
     ‘__builtin_dynamic_object_size’ is complex.

   In general, the fortified variants of the function calls use the name
of the function with a ‘__’ prefix and a ‘_chk’ suffix.  There are some
exceptions, e.g.  the ‘printf’ family of functions where, depending on
the architecture, one may also see fortified variants have the
‘_chkieee128’ suffix or the ‘__nldbl___’ prefix to their names.

   Another exception is the ‘open’ family of functions, where their
fortified replacements have the ‘__’ prefix and a ‘_2’ suffix.  The
‘FD_SET’, ‘FD_CLR’ and ‘FD_ISSET’ macros use the ‘__fdelt_chk’ function
on fortification.

   The following functions and macros are fortified in the GNU C
Library:

   • ‘asprintf’

   • ‘confstr’

   • ‘dprintf’

   • ‘explicit_bzero’

   • ‘FD_SET’

   • ‘FD_CLR’

   • ‘FD_ISSET’

   • ‘fgets’

   • ‘fgets_unlocked’

   • ‘fgetws’

   • ‘fgetws_unlocked’

   • ‘fprintf’

   • ‘fread’

   • ‘fread_unlocked’

   • ‘fwprintf’

   • ‘getcwd’

   • ‘getdomainname’

   • ‘getgroups’

   • ‘gethostname’

   • ‘getlogin_r’

   • ‘gets’

   • ‘getwd’

   • ‘inet_ntop’

   • ‘inet_pton’

   • ‘longjmp’

   • ‘mbsnrtowcs’

   • ‘mbsrtowcs’

   • ‘mbstowcs’

   • ‘memcpy’

   • ‘memmove’

   • ‘mempcpy’

   • ‘memset’

   • ‘memset_explicit’

   • ‘mq_open’

   • ‘obstack_printf’

   • ‘obstack_vprintf’

   • ‘open’

   • ‘open64’

   • ‘openat’

   • ‘openat64’

   • ‘poll’

   • ‘ppoll64’

   • ‘ppoll’

   • ‘pread64’

   • ‘pread’

   • ‘printf’

   • ‘ptsname_r’

   • ‘read’

   • ‘readlinkat’

   • ‘readlink’

   • ‘realpath’

   • ‘recv’

   • ‘recvfrom’

   • ‘snprintf’

   • ‘sprintf’

   • ‘stpcpy’

   • ‘stpncpy’

   • ‘strcat’

   • ‘strcpy’

   • ‘strlcat’

   • ‘strlcpy’

   • ‘strncat’

   • ‘strncpy’

   • ‘swprintf’

   • ‘syslog’

   • ‘ttyname_r’

   • ‘vasprintf’

   • ‘vdprintf’

   • ‘vfprintf’

   • ‘vfwprintf’

   • ‘vprintf’

   • ‘vsnprintf’

   • ‘vsprintf’

   • ‘vswprintf’

   • ‘vsyslog’

   • ‘vwprintf’

   • ‘wcpcpy’

   • ‘wcpncpy’

   • ‘wcrtomb’

   • ‘wcscat’

   • ‘wcscpy’

   • ‘wcslcat’

   • ‘wcslcpy’

   • ‘wcsncat’

   • ‘wcsncpy’

   • ‘wcsnrtombs’

   • ‘wcsrtombs’

   • ‘wcstombs’

   • ‘wctomb’

   • ‘wmemcpy’

   • ‘wmemmove’

   • ‘wmempcpy’

   • ‘wmemset’

   • ‘wprintf’


File: libc.info,  Node: Symbol handling,  Next: Porting,  Prev: Source Fortification,  Up: Maintenance

D.3 Symbol handling in the GNU C Library
========================================

* Menu:

* 64-bit time symbol handling :: How to handle 64-bit time related
                                    symbols in the GNU C Library.


File: libc.info,  Node: 64-bit time symbol handling,  Up: Symbol handling

D.3.1 64-bit time symbol handling in the GNU C Library
------------------------------------------------------

With respect to time handling, GNU C Library configurations fall in two
classes depending on the value of ‘__TIMESIZE’:

‘__TIMESIZE == 32’

     These “dual-time” configurations have both 32-bit and 64-bit time
     support.  32-bit time support provides type ‘time_t’ and cannot
     handle dates beyond “Y2038”.  64-bit time support provides type
     ‘__time64_t’ and can handle dates beyond “Y2038”.

     In these configurations, time-related types have two declarations,
     a 64-bit one, and a 32-bit one; and time-related functions
     generally have two definitions: a 64-bit one, and a 32-bit one
     which is a wrapper around the former.  Therefore, for every
     ‘time_t’-related symbol, there is a corresponding
     ‘__time64_t’-related symbol, the name of which is usually the
     32-bit symbol's name with ‘__’ (a double underscore) prepended and
     ‘64’ appended.  For instance, the 64-bit-time counterpart of
     ‘clock_gettime’ is ‘__clock_gettime64’.

‘__TIMESIZE == 64’

     These “single-time” configurations only have a 64-bit ‘time_t’ and
     related functions, which can handle dates beyond 2038-01-19
     03:14:07 (aka “Y2038”).

     In these configurations, time-related types only have a 64-bit
     declaration; and time-related functions only have one 64-bit
     definition.  However, for every ‘time_t’-related symbol, there is a
     corresponding ‘__time64_t’-related macro, the name of which is
     derived as in the dual-time configuration case, and which expands
     to the symbol's name.  For instance, the macro ‘__clock_gettime64’
     expands to ‘clock_gettime’.

     When ‘__TIMESIZE’ is set to 64, the GNU C Library will also define
     the ‘__USE_TIME_BITS64’ macro.  It is used by the Linux kernel ABI
     to set the expected ‘time_t’ size used on some syscalls.

     These macros are purely internal to the GNU C Library and exist
     only so that a single definition of the 64-bit time functions can
     be used on both single-time and dual-time configurations, and so
     that glibc code can freely call the 64-bit functions internally in
     all configurations.

   Note: at this point, 64-bit time support in dual-time configurations
is work-in-progress, so for these configurations, the public API only
makes the 32-bit time support available.  In a later change, the public
API will allow user code to choose the time size for a given compilation
unit.

   64-bit variants of time-related types or functions are defined for
all configurations and use 64-bit-time symbol names (for dual-time
configurations) or macros (for single-time configurations).

   32-bit variants of time-related types or functions are defined only
for dual-time configurations.

   Here is an example with ‘localtime’:

   Function ‘localtime’ is declared in ‘time/time.h’ as
     extern struct tm *localtime (const time_t *__timer) __THROW;
     libc_hidden_proto (localtime)

   For single-time configurations, ‘__localtime64’ is a macro which
evaluates to ‘localtime’; for dual-time configurations, ‘__localtime64’
is a function similar to ‘localtime’ except it uses Y2038-proof types:
     #if __TIMESIZE == 64
     # define __localtime64 localtime
     #else
     extern struct tm *__localtime64 (const __time64_t *__timer) __THROW;
     libc_hidden_proto (__localtime64)
     #endif

   (note: type ‘time_t’ is replaced with ‘__time64_t’ because ‘time_t’
is not Y2038-proof, but ‘struct tm’ is not replaced because it is
already Y2038-proof.)

   The 64-bit-time implementation of ‘localtime’ is written as follows
and is compiled for both dual-time and single-time configuration
classes.

     struct tm *
     __localtime64 (const __time64_t *t)
     {
       return __tz_convert (*t, 1, &_tmbuf);
     }
     libc_hidden_def (__localtime64)

   The 32-bit-time implementation is a wrapper and is only compiled for
dual-time configurations:

     #if __TIMESIZE != 64

     struct tm *
     localtime (const time_t *t)
     {
       __time64_t t64 = *t;
       return __localtime64 (&t64);
     }
     libc_hidden_def (localtime)

     #endif


File: libc.info,  Node: Porting,  Prev: Symbol handling,  Up: Maintenance

D.4 Porting the GNU C Library
=============================

The GNU C Library is written to be easily portable to a variety of
machines and operating systems.  Machine- and operating system-dependent
functions are well separated to make it easy to add implementations for
new machines or operating systems.  This section describes the layout of
the library source tree and explains the mechanisms used to select
machine-dependent code to use.

   All the machine-dependent and operating system-dependent files in the
library are in the subdirectory ‘sysdeps’ under the top-level library
source directory.  This directory contains a hierarchy of subdirectories
(*note Hierarchy Conventions::).

   Each subdirectory of ‘sysdeps’ contains source files for a particular
machine or operating system, or for a class of machine or operating
system (for example, systems by a particular vendor, or all machines
that use IEEE 754 floating-point format).  A configuration specifies an
ordered list of these subdirectories.  Each subdirectory implicitly
appends its parent directory to the list.  For example, specifying the
list ‘unix/bsd/vax’ is equivalent to specifying the list ‘unix/bsd/vax
unix/bsd unix’.  A subdirectory can also specify that it implies other
subdirectories which are not directly above it in the directory
hierarchy.  If the file ‘Implies’ exists in a subdirectory, it lists
other subdirectories of ‘sysdeps’ which are appended to the list,
appearing after the subdirectory containing the ‘Implies’ file.  Lines
in an ‘Implies’ file that begin with a ‘#’ character are ignored as
comments.  For example, ‘unix/bsd/Implies’ contains:
     # BSD has Internet-related things.
     unix/inet
and ‘unix/Implies’ contains:
     posix

So the final list is ‘unix/bsd/vax unix/bsd unix/inet unix posix’.

   ‘sysdeps’ has a "special" subdirectory called ‘generic’.  It is
always implicitly appended to the list of subdirectories, so you needn't
put it in an ‘Implies’ file, and you should not create any
subdirectories under it intended to be new specific categories.
‘generic’ serves two purposes.  First, the makefiles do not bother to
look for a system-dependent version of a file that's not in ‘generic’.
This means that any system-dependent source file must have an analogue
in ‘generic’, even if the routines defined by that file are not
implemented on other platforms.  Second, the ‘generic’ version of a
system-dependent file is used if the makefiles do not find a version
specific to the system you're compiling for.

   If it is possible to implement the routines in a ‘generic’ file in
machine-independent C, using only other machine-independent functions in
the C library, then you should do so.  Otherwise, make them stubs.  A
“stub” function is a function which cannot be implemented on a
particular machine or operating system.  Stub functions always return an
error, and set ‘errno’ to ‘ENOSYS’ (Function not implemented).  *Note
Error Reporting::.  If you define a stub function, you must place the
statement ‘stub_warning(FUNCTION)’, where FUNCTION is the name of your
function, after its definition.  This causes the function to be listed
in the installed ‘<gnu/stubs.h>’, and makes GNU ld warn when the
function is used.

   Some rare functions are only useful on specific systems and aren't
defined at all on others; these do not appear anywhere in the
system-independent source code or makefiles (including the ‘generic’
directory), only in the system-dependent ‘Makefile’ in the specific
system's subdirectory.

   If you come across a file that is in one of the main source
directories (‘string’, ‘stdio’, etc.), and you want to write a machine-
or operating system-dependent version of it, move the file into
‘sysdeps/generic’ and write your new implementation in the appropriate
system-specific subdirectory.  Note that if a file is to be
system-dependent, it *must not* appear in one of the main source
directories.

   There are a few special files that may exist in each subdirectory of
‘sysdeps’:

‘Makefile’

     A makefile for this machine or operating system, or class of
     machine or operating system.  This file is included by the library
     makefile ‘Makerules’, which is used by the top-level makefile and
     the subdirectory makefiles.  It can change the variables set in the
     including makefile or add new rules.  It can use GNU ‘make’
     conditional directives based on the variable ‘subdir’ (see above)
     to select different sets of variables and rules for different
     sections of the library.  It can also set the ‘make’ variable
     ‘sysdep-routines’, to specify extra modules to be included in the
     library.  You should use ‘sysdep-routines’ rather than adding
     modules to ‘routines’ because the latter is used in determining
     what to distribute for each subdirectory of the main source tree.

     Each makefile in a subdirectory in the ordered list of
     subdirectories to be searched is included in order.  Since several
     system-dependent makefiles may be included, each should append to
     ‘sysdep-routines’ rather than simply setting it:

          sysdep-routines := $(sysdep-routines) foo bar

‘Subdirs’

     This file contains the names of new whole subdirectories under the
     top-level library source tree that should be included for this
     system.  These subdirectories are treated just like the
     system-independent subdirectories in the library source tree, such
     as ‘stdio’ and ‘math’.

     Use this when there are completely new sets of functions and header
     files that should go into the library for the system this
     subdirectory of ‘sysdeps’ implements.  For example,
     ‘sysdeps/unix/inet/Subdirs’ contains ‘inet’; the ‘inet’ directory
     contains various network-oriented operations which only make sense
     to put in the library on systems that support the Internet.

‘configure’

     This file is a shell script fragment to be run at configuration
     time.  The top-level ‘configure’ script uses the shell ‘.’ command
     to read the ‘configure’ file in each system-dependent directory
     chosen, in order.  The ‘configure’ files are often generated from
     ‘configure.ac’ files using Autoconf.

     A system-dependent ‘configure’ script will usually add things to
     the shell variables ‘DEFS’ and ‘config_vars’; see the top-level
     ‘configure’ script for details.  The script can check for
     ‘--with-PACKAGE’ options that were passed to the top-level
     ‘configure’.  For an option ‘--with-PACKAGE=VALUE’ ‘configure’ sets
     the shell variable ‘with_PACKAGE’ (with any dashes in PACKAGE
     converted to underscores) to VALUE; if the option is just
     ‘--with-PACKAGE’ (no argument), then it sets ‘with_PACKAGE’ to
     ‘yes’.

‘configure.ac’

     This file is an Autoconf input fragment to be processed into the
     file ‘configure’ in this subdirectory.  *Note
     (autoconf)Introduction::, for a description of Autoconf.  You
     should write either ‘configure’ or ‘configure.ac’, but not both.
     The first line of ‘configure.ac’ should invoke the ‘m4’ macro
     ‘GLIBC_PROVIDES’.  This macro does several ‘AC_PROVIDE’ calls for
     Autoconf macros which are used by the top-level ‘configure’ script;
     without this, those macros might be invoked again unnecessarily by
     Autoconf.

   That is the general system for how system-dependencies are isolated.

* Menu:

* Hierarchy Conventions::       The layout of the ‘sysdeps’ hierarchy.
* Porting to Unix::             Porting the library to an average
                                   Unix-like system.


File: libc.info,  Node: Hierarchy Conventions,  Next: Porting to Unix,  Up: Porting

D.4.1 Layout of the ‘sysdeps’ Directory Hierarchy
-------------------------------------------------

A GNU configuration name has three parts: the CPU type, the
manufacturer's name, and the operating system.  ‘configure’ uses these
to pick the list of system-dependent directories to look for.  If the
‘--nfp’ option is _not_ passed to ‘configure’, the directory
‘MACHINE/fpu’ is also used.  The operating system often has a “base
operating system”; for example, if the operating system is ‘Linux’, the
base operating system is ‘unix/sysv’.  The algorithm used to pick the
list of directories is simple: ‘configure’ makes a list of the base
operating system, manufacturer, CPU type, and operating system, in that
order.  It then concatenates all these together with slashes in between,
to produce a directory name; for example, the configuration
‘i686-linux-gnu’ results in ‘unix/sysv/linux/i386/i686’.  ‘configure’
then tries removing each element of the list in turn, so
‘unix/sysv/linux’ and ‘unix/sysv’ are also tried, among others.  Since
the precise version number of the operating system is often not
important, and it would be very inconvenient, for example, to have
identical ‘irix6.2’ and ‘irix6.3’ directories, ‘configure’ tries
successively less specific operating system names by removing trailing
suffixes starting with a period.

   As an example, here is the complete list of directories that would be
tried for the configuration ‘i686-linux-gnu’:

     sysdeps/i386/elf
     sysdeps/unix/sysv/linux/i386
     sysdeps/unix/sysv/linux
     sysdeps/gnu
     sysdeps/unix/common
     sysdeps/unix/mman
     sysdeps/unix/inet
     sysdeps/unix/sysv/i386/i686
     sysdeps/unix/sysv/i386
     sysdeps/unix/sysv
     sysdeps/unix/i386
     sysdeps/unix
     sysdeps/posix
     sysdeps/i386/i686
     sysdeps/i386/i486
     sysdeps/libm-i387/i686
     sysdeps/i386/fpu
     sysdeps/libm-i387
     sysdeps/i386
     sysdeps/wordsize-32
     sysdeps/ieee754
     sysdeps/libm-ieee754
     sysdeps/generic

   Different machine architectures are conventionally subdirectories at
the top level of the ‘sysdeps’ directory tree.  For example,
‘sysdeps/sparc’ and ‘sysdeps/m68k’.  These contain files specific to
those machine architectures, but not specific to any particular
operating system.  There might be subdirectories for specializations of
those architectures, such as ‘sysdeps/m68k/68020’.  Code which is
specific to the floating-point coprocessor used with a particular
machine should go in ‘sysdeps/MACHINE/fpu’.

   There are a few directories at the top level of the ‘sysdeps’
hierarchy that are not for particular machine architectures.

‘generic’
     As described above (*note Porting::), this is the subdirectory that
     every configuration implicitly uses after all others.

‘ieee754’
     This directory is for code using the IEEE 754 floating-point
     format, where the C type ‘float’ is IEEE 754 single-precision
     format, and ‘double’ is IEEE 754 double-precision format.  Usually
     this directory is referred to in the ‘Implies’ file in a machine
     architecture-specific directory, such as ‘m68k/Implies’.

‘libm-ieee754’
     This directory contains an implementation of a mathematical library
     usable on platforms which use IEEE 754 conformant floating-point
     arithmetic.

‘libm-i387’
     This is a special case.  Ideally the code should be in
     ‘sysdeps/i386/fpu’ but for various reasons it is kept aside.

‘posix’
     This directory contains implementations of things in the library in
     terms of POSIX.1 functions.  This includes some of the POSIX.1
     functions themselves.  Of course, POSIX.1 cannot be completely
     implemented in terms of itself, so a configuration using just
     ‘posix’ cannot be complete.

‘unix’
     This is the directory for Unix-like things.  *Note Porting to
     Unix::.  ‘unix’ implies ‘posix’.  There are some special-purpose
     subdirectories of ‘unix’:

     ‘unix/common’
          This directory is for things common to both BSD and System V
          release 4.  Both ‘unix/bsd’ and ‘unix/sysv/sysv4’ imply
          ‘unix/common’.

     ‘unix/inet’
          This directory is for ‘socket’ and related functions on Unix
          systems.  ‘unix/inet/Subdirs’ enables the ‘inet’ top-level
          subdirectory.  ‘unix/common’ implies ‘unix/inet’.

‘mach’
     This is the directory for things based on the Mach microkernel from
     CMU (including GNU/Hurd systems).  Other basic operating systems
     (VMS, for example) would have their own directories at the top
     level of the ‘sysdeps’ hierarchy, parallel to ‘unix’ and ‘mach’.


File: libc.info,  Node: Porting to Unix,  Prev: Hierarchy Conventions,  Up: Porting

D.4.2 Porting the GNU C Library to Unix Systems
-----------------------------------------------

Most Unix systems are fundamentally very similar.  There are variations
between different machines, and variations in what facilities are
provided by the kernel.  But the interface to the operating system
facilities is, for the most part, pretty uniform and simple.

   The code for Unix systems is in the directory ‘unix’, at the top
level of the ‘sysdeps’ hierarchy.  This directory contains
subdirectories (and subdirectory trees) for various Unix variants.

   The functions which are system calls in most Unix systems are
implemented in assembly code, which is generated automatically from
specifications in files named ‘syscalls.list’.  There are several such
files, one in ‘sysdeps/unix’ and others in its subdirectories.  Some
special system calls are implemented in files that are named with a
suffix of ‘.S’; for example, ‘_exit.S’.  Files ending in ‘.S’ are run
through the C preprocessor before being fed to the assembler.

   These files all use a set of macros that should be defined in
‘sysdep.h’.  The ‘sysdep.h’ file in ‘sysdeps/unix’ partially defines
them; a ‘sysdep.h’ file in another directory must finish defining them
for the particular machine and operating system variant.  See
‘sysdeps/unix/sysdep.h’ and the machine-specific ‘sysdep.h’
implementations to see what these macros are and what they should do.

   The system-specific makefile for the ‘unix’ directory
(‘sysdeps/unix/Makefile’) gives rules to generate several files from the
Unix system you are building the library on (which is assumed to be the
target system you are building the library _for_).  All the generated
files are put in the directory where the object files are kept; they
should not affect the source tree itself.  The files generated are
‘ioctls.h’, ‘errnos.h’, ‘sys/param.h’, and ‘errlist.c’ (for the ‘stdio’
section of the library).


File: libc.info,  Node: Platform,  Next: Contributors,  Prev: Maintenance,  Up: Top

Appendix E Platform-specific facilities
***************************************

The GNU C Library can provide machine-specific functionality.

* Menu:

* PowerPC::           Facilities Specific to the PowerPC Architecture
* RISC-V::            Facilities Specific to the RISC-V Architecture
* X86::               Facilities Specific to the X86 Architecture


File: libc.info,  Node: PowerPC,  Next: RISC-V,  Up: Platform

E.1 PowerPC-specific Facilities
===============================

Facilities specific to PowerPC that are not specific to a particular
operating system are declared in ‘sys/platform/ppc.h’.

 -- Function: uint64_t __ppc_get_timebase (void)
     Preliminary: | MT-Safe | AS-Safe | AC-Safe | *Note POSIX Safety
     Concepts::.

     Read the current value of the Time Base Register.

     The “Time Base Register” is a 64-bit register that stores a
     monotonically incremented value updated at a system-dependent
     frequency that may be different from the processor frequency.  More
     information is available in ‘Power ISA 2.06b - Book II - Section
     5.2’.

     ‘__ppc_get_timebase’ uses the processor's time base facility
     directly without requiring assistance from the operating system, so
     it is very efficient.

 -- Function: uint64_t __ppc_get_timebase_freq (void)
     Preliminary: | MT-Unsafe init | AS-Unsafe corrupt:init | AC-Unsafe
     corrupt:init | *Note POSIX Safety Concepts::.

     Read the current frequency at which the Time Base Register is
     updated.

     This frequency is not related to the processor clock or the bus
     clock.  It is also possible that this frequency is not constant.
     More information is available in ‘Power ISA 2.06b - Book II -
     Section 5.2’.

   The following functions provide hints about the usage of resources
that are shared with other processors.  They can be used, for example,
if a program waiting on a lock intends to divert the shared resources to
be used by other processors.  More information is available in ‘Power
ISA 2.06b - Book II - Section 3.2’.

 -- Function: void __ppc_yield (void)
     Preliminary: | MT-Safe | AS-Safe | AC-Safe | *Note POSIX Safety
     Concepts::.

     Provide a hint that performance will probably be improved if shared
     resources dedicated to the executing processor are released for use
     by other processors.

 -- Function: void __ppc_mdoio (void)
     Preliminary: | MT-Safe | AS-Safe | AC-Safe | *Note POSIX Safety
     Concepts::.

     Provide a hint that performance will probably be improved if shared
     resources dedicated to the executing processor are released until
     all outstanding storage accesses to caching-inhibited storage have
     been completed.

 -- Function: void __ppc_mdoom (void)
     Preliminary: | MT-Safe | AS-Safe | AC-Safe | *Note POSIX Safety
     Concepts::.

     Provide a hint that performance will probably be improved if shared
     resources dedicated to the executing processor are released until
     all outstanding storage accesses to cacheable storage for which the
     data is not in the cache have been completed.

 -- Function: void __ppc_set_ppr_med (void)
     Preliminary: | MT-Safe | AS-Safe | AC-Safe | *Note POSIX Safety
     Concepts::.

     Set the Program Priority Register to medium value (default).

     The “Program Priority Register” (PPR) is a 64-bit register that
     controls the program's priority.  By adjusting the PPR value the
     programmer may improve system throughput by causing the system
     resources to be used more efficiently, especially in contention
     situations.  The three unprivileged states available are covered by
     the functions ‘__ppc_set_ppr_med’ (medium - default),
     ‘__ppc_set_ppc_low’ (low) and ‘__ppc_set_ppc_med_low’ (medium low).
     More information available in ‘Power ISA 2.06b - Book II - Section
     3.1’.

 -- Function: void __ppc_set_ppr_low (void)
     Preliminary: | MT-Safe | AS-Safe | AC-Safe | *Note POSIX Safety
     Concepts::.

     Set the Program Priority Register to low value.

 -- Function: void __ppc_set_ppr_med_low (void)
     Preliminary: | MT-Safe | AS-Safe | AC-Safe | *Note POSIX Safety
     Concepts::.

     Set the Program Priority Register to medium low value.

   Power ISA 2.07 extends the priorities that can be set to the Program
Priority Register (PPR). The following functions implement the new
priority levels: very low and medium high.

 -- Function: void __ppc_set_ppr_very_low (void)
     Preliminary: | MT-Safe | AS-Safe | AC-Safe | *Note POSIX Safety
     Concepts::.

     Set the Program Priority Register to very low value.

 -- Function: void __ppc_set_ppr_med_high (void)
     Preliminary: | MT-Safe | AS-Safe | AC-Safe | *Note POSIX Safety
     Concepts::.

     Set the Program Priority Register to medium high value.  The medium
     high priority is privileged and may only be set during certain time
     intervals by problem-state programs.  If the program priority is
     medium high when the time interval expires or if an attempt is made
     to set the priority to medium high when it is not allowed, the
     priority is set to medium.


File: libc.info,  Node: RISC-V,  Next: X86,  Prev: PowerPC,  Up: Platform

E.2 RISC-V-specific Facilities
==============================

Cache management facilities specific to RISC-V systems that implement
the Linux ABI are declared in ‘sys/cachectl.h’.

 -- Function: void __riscv_flush_icache (void *START, void *END,
          unsigned long int FLAGS)
     Preliminary: | MT-Safe | AS-Safe | AC-Safe | *Note POSIX Safety
     Concepts::.

     Enforce ordering between stores and instruction cache fetches.  The
     range of addresses over which ordering is enforced is specified by
     START and END.  The FLAGS argument controls the extent of this
     ordering, with the default behavior (a FLAGS value of 0) being to
     enforce the fence on all threads in the current process.  Setting
     the ‘SYS_RISCV_FLUSH_ICACHE_LOCAL’ bit allows users to indicate
     that enforcing ordering on only the current thread is necessary.
     All other flag bits are reserved.


File: libc.info,  Node: X86,  Prev: RISC-V,  Up: Platform

E.3 X86-specific Facilities
===========================

Facilities specific to X86 that are not specific to a particular
operating system are declared in ‘sys/platform/x86.h’.

 -- Function: const struct cpuid_feature * __x86_get_cpuid_feature_leaf
          (unsigned int LEAF)
     Preliminary: | MT-Safe | AS-Safe | AC-Safe | *Note POSIX Safety
     Concepts::.

     Return a pointer to x86 CPU feature structure used by query macros
     for x86 CPU feature LEAF.

 -- Macro: int CPU_FEATURE_PRESENT (NAME)
     This macro returns a nonzero value (true) if the processor has the
     feature NAME.

 -- Macro: int CPU_FEATURE_ACTIVE (NAME)
     This macro returns a nonzero value (true) if the processor has the
     feature NAME and the feature is active.  There may be other
     preconditions, like sufficient stack space or further setup for
     AMX, which must be satisfied before the feature can be used.

   The supported processor features are:

   • ‘ACPI’ - Thermal Monitor and Software Controlled Clock Facilities.

   • ‘ADX’ - ADX instruction extensions.

   • ‘APIC’ - APIC On-Chip.

   • ‘AES’ - The AES instruction extensions.

   • ‘AESKLE’ - AES Key Locker instructions are enabled by OS.

   • ‘AMD_IBPB’ - Indirect branch predictor barrier (IBPB) for AMD cpus.

   • ‘AMD_IBRS’ - Indirect branch restricted speculation (IBPB) for AMD
     cpus.

   • ‘AMD_SSBD’ - Speculative Store Bypass Disable (SSBD) for AMD cpus.

   • ‘AMD_STIBP’ - Single thread indirect branch predictors (STIBP) for
     AMD cpus.

   • ‘AMD_VIRT_SSBD’ - Speculative Store Bypass Disable (SSBD) for AMD
     cpus (older systems).

   • ‘AMX_BF16’ - Tile computational operations on bfloat16 numbers.

   • ‘AMX_COMPLEX’ - Tile computational operations on complex FP16
     numbers.

   • ‘AMX_INT8’ - Tile computational operations on 8-bit numbers.

   • ‘AMX_FP16’ - Tile computational operations on FP16 numbers.

   • ‘AMX_TILE’ - Tile architecture.

   • ‘APX_F’ - The APX instruction extensions.

   • ‘ARCH_CAPABILITIES’ - IA32_ARCH_CAPABILITIES MSR.

   • ‘ArchPerfmonExt’ - Architectural Performance Monitoring Extended
     Leaf (EAX = 23H).

   • ‘AVX’ - The AVX instruction extensions.

   • ‘AVX10’ - The AVX10 instruction extensions.

   • ‘AVX10_XMM’ - Whether AVX10 includes xmm registers.

   • ‘AVX10_YMM’ - Whether AVX10 includes ymm registers.

   • ‘AVX10_ZMM’ - Whether AVX10 includes zmm registers.

   • ‘AVX2’ - The AVX2 instruction extensions.

   • ‘AVX_IFMA’ - The AVX-IFMA instruction extensions.

   • ‘AVX_NE_CONVERT’ - The AVX-NE-CONVERT instruction extensions.

   • ‘AVX_VNNI’ - The AVX-VNNI instruction extensions.

   • ‘AVX_VNNI_INT8’ - The AVX-VNNI-INT8 instruction extensions.

   • ‘AVX512_4FMAPS’ - The AVX512_4FMAPS instruction extensions.

   • ‘AVX512_4VNNIW’ - The AVX512_4VNNIW instruction extensions.

   • ‘AVX512_BF16’ - The AVX512_BF16 instruction extensions.

   • ‘AVX512_BITALG’ - The AVX512_BITALG instruction extensions.

   • ‘AVX512_FP16’ - The AVX512_FP16 instruction extensions.

   • ‘AVX512_IFMA’ - The AVX512_IFMA instruction extensions.

   • ‘AVX512_VBMI’ - The AVX512_VBMI instruction extensions.

   • ‘AVX512_VBMI2’ - The AVX512_VBMI2 instruction extensions.

   • ‘AVX512_VNNI’ - The AVX512_VNNI instruction extensions.

   • ‘AVX512_VP2INTERSECT’ - The AVX512_VP2INTERSECT instruction
     extensions.

   • ‘AVX512_VPOPCNTDQ’ - The AVX512_VPOPCNTDQ instruction extensions.

   • ‘AVX512BW’ - The AVX512BW instruction extensions.

   • ‘AVX512CD’ - The AVX512CD instruction extensions.

   • ‘AVX512ER’ - The AVX512ER instruction extensions.

   • ‘AVX512DQ’ - The AVX512DQ instruction extensions.

   • ‘AVX512F’ - The AVX512F instruction extensions.

   • ‘AVX512PF’ - The AVX512PF instruction extensions.

   • ‘AVX512VL’ - The AVX512VL instruction extensions.

   • ‘BMI1’ - BMI1 instructions.

   • ‘BMI2’ - BMI2 instructions.

   • ‘BUS_LOCK_DETECT’ - Bus lock debug exceptions.

   • ‘CLDEMOTE’ - CLDEMOTE instruction.

   • ‘CLFLUSHOPT’ - CLFLUSHOPT instruction.

   • ‘CLFSH’ - CLFLUSH instruction.

   • ‘CLWB’ - CLWB instruction.

   • ‘CMOV’ - Conditional Move instructions.

   • ‘CMPCCXADD’ - CMPccXADD instruction.

   • ‘CMPXCHG16B’ - CMPXCHG16B instruction.

   • ‘CNXT_ID’ - L1 Context ID.

   • ‘CORE_CAPABILITIES’ - IA32_CORE_CAPABILITIES MSR.

   • ‘CX8’ - CMPXCHG8B instruction.

   • ‘DCA’ - Data prefetch from a memory mapped device.

   • ‘DE’ - Debugging Extensions.

   • ‘DEPR_FPU_CS_DS’ - Deprecates FPU CS and FPU DS values.

   • ‘DS’ - Debug Store.

   • ‘DS_CPL’ - CPL Qualified Debug Store.

   • ‘DTES64’ - 64-bit DS Area.

   • ‘EIST’ - Enhanced Intel SpeedStep technology.

   • ‘ENQCMD’ - Enqueue Stores instructions.

   • ‘ERMS’ - Enhanced REP MOVSB/STOSB.

   • ‘F16C’ - 16-bit floating-point conversion instructions.

   • ‘FMA’ - FMA extensions using YMM state.

   • ‘FMA4’ - FMA4 instruction extensions.

   • ‘FPU’ - X87 Floating Point Unit On-Chip.

   • ‘FSGSBASE’ - RDFSBASE/RDGSBASE/WRFSBASE/WRGSBASE instructions.

   • ‘FSRCS’ - Fast Short REP CMP and SCA.

   • ‘FSRM’ - Fast Short REP MOV.

   • ‘FSRS’ - Fast Short REP STO.

   • ‘FXSR’ - FXSAVE and FXRSTOR instructions.

   • ‘FZLRM’ - Fast Zero-Length REP MOV.

   • ‘GFNI’ - GFNI instruction extensions.

   • ‘HLE’ - HLE instruction extensions.

   • ‘HTT’ - Max APIC IDs reserved field is Valid.

   • ‘HRESET’ - History reset.

   • ‘HYBRID’ - Hybrid processor.

   • ‘IBRS_IBPB’ - Indirect branch restricted speculation (IBRS) and the
     indirect branch predictor barrier (IBPB).

   • ‘IBT’ - Intel Indirect Branch Tracking instruction extensions.

   • ‘INVARIANT_TSC’ - Invariant TSC.

   • ‘INVPCID’ - INVPCID instruction.

   • ‘KL’ - AES Key Locker instructions.

   • ‘L1D_FLUSH’ - IA32_FLUSH_CMD MSR.

   • ‘LA57’ - 57-bit linear addresses and five-level paging.

   • ‘LAHF64_SAHF64’ - LAHF/SAHF available in 64-bit mode.

   • ‘LAM’ - Linear Address Masking.

   • ‘LASS’ - Linear Address Space Separation.

   • ‘LBR’ - Architectural LBR.

   • ‘LM’ - Long mode.

   • ‘LWP’ - Lightweight profiling.

   • ‘LZCNT’ - LZCNT instruction.

   • ‘MCA’ - Machine Check Architecture.

   • ‘MCE’ - Machine Check Exception.

   • ‘MD_CLEAR’ - MD_CLEAR.

   • ‘MMX’ - Intel MMX Technology.

   • ‘MONITOR’ - MONITOR/MWAIT instructions.

   • ‘MOVBE’ - MOVBE instruction.

   • ‘MOVDIRI’ - MOVDIRI instruction.

   • ‘MOVDIR64B’ - MOVDIR64B instruction.

   • ‘MPX’ - Intel Memory Protection Extensions.

   • ‘MSR’ - Model Specific Registers RDMSR and WRMSR instructions.

   • ‘MSRLIST’ - RDMSRLIST/WRMSRLIST instructions and IA32_BARRIER MSR.

   • ‘MTRR’ - Memory Type Range Registers.

   • ‘NX’ - No-execute page protection.

   • ‘OSPKE’ - OS has set CR4.PKE to enable protection keys.

   • ‘OSXSAVE’ - The OS has set CR4.OSXSAVE[bit 18] to enable
     XSETBV/XGETBV instructions to access XCR0 and to support processor
     extended state management using XSAVE/XRSTOR.

   • ‘PAE’ - Physical Address Extension.

   • ‘PAGE1GB’ - 1-GByte page.

   • ‘PAT’ - Page Attribute Table.

   • ‘PBE’ - Pending Break Enable.

   • ‘PCID’ - Process-context identifiers.

   • ‘PCLMULQDQ’ - PCLMULQDQ instruction.

   • ‘PCONFIG’ - PCONFIG instruction.

   • ‘PDCM’ - Perfmon and Debug Capability.

   • ‘PGE’ - Page Global Bit.

   • ‘PKS’ - Protection keys for supervisor-mode pages.

   • ‘PKU’ - Protection keys for user-mode pages.

   • ‘POPCNT’ - POPCNT instruction.

   • ‘PREFETCHW’ - PREFETCHW instruction.

   • ‘PREFETCHWT1’ - PREFETCHWT1 instruction.

   • ‘PREFETCHI’ - PREFETCHIT0/1 instructions.

   • ‘PSE’ - Page Size Extension.

   • ‘PSE_36’ - 36-Bit Page Size Extension.

   • ‘PSN’ - Processor Serial Number.

   • ‘PTWRITE’ - PTWRITE instruction.

   • ‘RAO_INT’ - RAO-INT instructions.

   • ‘RDPID’ - RDPID instruction.

   • ‘RDRAND’ - RDRAND instruction.

   • ‘RDSEED’ - RDSEED instruction.

   • ‘RDT_A’ - Intel Resource Director Technology (Intel RDT) Allocation
     capability.

   • ‘RDT_M’ - Intel Resource Director Technology (Intel RDT) Monitoring
     capability.

   • ‘RDTSCP’ - RDTSCP instruction.

   • ‘RTM’ - RTM instruction extensions.

   • ‘RTM_ALWAYS_ABORT’ - Transactions always abort, making RTM
     unusable.

   • ‘RTM_FORCE_ABORT’ - TSX_FORCE_ABORT MSR.

   • ‘SDBG’ - IA32_DEBUG_INTERFACE MSR for silicon debug.

   • ‘SEP’ - SYSENTER and SYSEXIT instructions.

   • ‘SERIALIZE’ - SERIALIZE instruction.

   • ‘SGX’ - Intel Software Guard Extensions.

   • ‘SGX_KEYS’ - Attestation Services for SGX.

   • ‘SGX_LC’ - SGX Launch Configuration.

   • ‘SHA’ - SHA instruction extensions.

   • ‘SHSTK’ - Intel Shadow Stack instruction extensions.

   • ‘SMAP’ - Supervisor-Mode Access Prevention.

   • ‘SMEP’ - Supervisor-Mode Execution Prevention.

   • ‘SMX’ - Safer Mode Extensions.

   • ‘SS’ - Self Snoop.

   • ‘SSBD’ - Speculative Store Bypass Disable (SSBD).

   • ‘SSE’ - Streaming SIMD Extensions.

   • ‘SSE2’ - Streaming SIMD Extensions 2.

   • ‘SSE3’ - Streaming SIMD Extensions 3.

   • ‘SSE4_1’ - Streaming SIMD Extensions 4.1.

   • ‘SSE4_2’ - Streaming SIMD Extensions 4.2.

   • ‘SSE4A’ - SSE4A instruction extensions.

   • ‘SSSE3’ - Supplemental Streaming SIMD Extensions 3.

   • ‘STIBP’ - Single thread indirect branch predictors (STIBP).

   • ‘SVM’ - Secure Virtual Machine.

   • ‘SYSCALL_SYSRET’ - SYSCALL/SYSRET instructions.

   • ‘TBM’ - Trailing bit manipulation instructions.

   • ‘TM’ - Thermal Monitor.

   • ‘TM2’ - Thermal Monitor 2.

   • ‘TRACE’ - Intel Processor Trace.

   • ‘TSC’ - Time Stamp Counter.  RDTSC instruction.

   • ‘TSC_ADJUST’ - IA32_TSC_ADJUST MSR.

   • ‘TSC_DEADLINE’ - Local APIC timer supports one-shot operation using
     a TSC deadline value.

   • ‘TSXLDTRK’ - TSXLDTRK instructions.

   • ‘UINTR’ - User interrupts.

   • ‘UMIP’ - User-mode instruction prevention.

   • ‘VAES’ - VAES instruction extensions.

   • ‘VME’ - Virtual 8086 Mode Enhancements.

   • ‘VMX’ - Virtual Machine Extensions.

   • ‘VPCLMULQDQ’ - VPCLMULQDQ instruction.

   • ‘WAITPKG’ - WAITPKG instruction extensions.

   • ‘WBNOINVD’ - WBINVD/WBNOINVD instructions.

   • ‘WIDE_KL’ - AES wide Key Locker instructions.

   • ‘WRMSRNS’ - WRMSRNS instruction.

   • ‘X2APIC’ - x2APIC.

   • ‘XFD’ - Extended Feature Disable (XFD).

   • ‘XGETBV_ECX_1’ - XGETBV with ECX = 1.

   • ‘XOP’ - XOP instruction extensions.

   • ‘XSAVE’ - The XSAVE/XRSTOR processor extended states feature, the
     XSETBV/XGETBV instructions, and XCR0.

   • ‘XSAVEC’ - XSAVEC instruction.

   • ‘XSAVEOPT’ - XSAVEOPT instruction.

   • ‘XSAVES’ - XSAVES/XRSTORS instructions.

   • ‘XTPRUPDCTRL’ - xTPR Update Control.

   You could query if a processor supports ‘AVX’ with:

     #include <sys/platform/x86.h>

     int
     avx_present (void)
     {
       return CPU_FEATURE_PRESENT (AVX);
     }

   and if ‘AVX’ is active and may be used with:

     #include <sys/platform/x86.h>

     int
     avx_active (void)
     {
       return CPU_FEATURE_ACTIVE (AVX);
     }


File: libc.info,  Node: Contributors,  Next: Free Manuals,  Prev: Platform,  Up: Top

Appendix F Contributors to the GNU C Library
********************************************

The GNU C Library project would like to thank its many contributors.
Without them the project would not have been nearly as successful as it
has been.  Any omissions in this list are accidental.  Feel free to file
a bug in bugzilla if you have been left out or some of your
contributions are not listed.  Please keep this list in alphabetical
order.

   • Osama Abdelkader for various contributions.

   • Nick Alcock for contributing fixes to allow the GNU C Library to be
     built with the stack smashing protector enabled.

   • Rogerio Alves Cardoso for various fixes to PowerPC.

   • Amrita H. S. for contributions to the PowerPC port.

   • John David Anglin for many fixes and co-maintainership of the HPPA
     port.

   • H. Peter Anvin for work on the termios code.

   • Albert ARIBAUD for Y2038 related fixes.

   • Ryan S. Arnold for his improvements for Linux on PowerPC and his
     direction as FSF Project Steward for the GNU C Library.

   • Arsen Arsenović for various fixes.

   • Miles Bader for writing the ‘argp’ argument-parsing package, and
     the ‘argz’/‘envz’ interfaces.

   • Ralf Bächle for contributing ‘fpu_control.h’, ‘regdef.h’,
     ‘sgidefs.h’, ‘sys/asm.h’, and ‘sys/regdef.h’ under the
     ‘sysdeps/mips’ directory.

   • Jeff Bailey for his maintainership of the HPPA architecture.

   • Frank Barrus for work on the threading library.

   • Petr Baudis for bug fixes and testing.

   • Frédéric Bérat for numerous fixes and contributions.

   • Peter Bergner for contributions to and maintainership of the
     PowerPC port and maintainership of the RISC-V port.

   • Indu Bhagat for various fixes.

   • Anton Blanchard for various fixes.

   • Pierre Blanchard for contributions to the AArch64 port.

   • Stephen R. van den Berg for contributing a highly-optimized
     ‘strstr’ function.

   • Ondřej Bílka for contributing optimized string routines for x64 and
     various fixes.

   • Uros Bizjak for many fixes and improvements.

   • Eric Blake for adding O(n) implementations of ‘memmem’, ‘strstr’
     and ‘strcasestr’.

   • Pierre Blanchard for contributing to the AArch64 port.

   • Philip Blundell for the ports to Linux/ARM
     (‘arm-ANYTHING-linuxaout’) and ARM standalone
     (‘arm-ANYTHING-none’), as well as for parts of the IPv6 support
     code.

   • Mahesh Bodapati for various fixes and optimizations for the Power
     architecture.

   • Per Bothner for the implementation of the ‘libio’ library which is
     used to implement ‘stdio’ functions.

   • Dridi Boukelmoune for various fixes.

   • Pádraig Brady for various contributions.

   • Mark Brown for his direction as part of the GNU C Library steering
     committee.

   • Sergey Bugaev for numerous contributions to Hurd.

   • Thomas Bushnell for his contributions to Hurd.

   • Yinyu Cai for their maintainership of the LoongArch port.

   • Daniel Cederman for fixes to the Sparc port.

   • Kito Cheng for various fixes.

   • James Chesterman for contributions to the AArch64 port.

   • Paul Clarke for optimized functions on PowerPC.

   • Alejandro Colomar for various fixes.

   • Martin Coufal for various fixes.

   • Mike Crowe for various fixes.

   • Flavio Cruz for contributions to Hurd.

   • Joana Cruz for contributions to the AArch64 port.

   • Palmer Dabbelt for contributing the port to Linux/RISC-V.

   • DJ Delorie for maintenance of Linux/RISC-V, numerous fixes, and
     handbook contributions.

   • Jianbo Deng for the work on the Loongson port.

   • Wilco Dijkstra for many fixes and improvements as well as
     maintainership of the AArch64 port.

   • Liubov Dmitrieva for optimized string and math functions on x86-64
     and x86.

   • Jovan Dmitrovic for work on the mips port.

   • Michael Hudson Doyle for various fixes.

   • Ulrich Drepper for his many contributions in almost all parts of
     the GNU C Library, including:
        • writing most of the POSIX Threads Library originally.
        • internationalization support, including the ‘locale’ and
          ‘localedef’ utilities.
        • Linux i386/ELF support
        • the ‘hsearch’ and ‘drand48’ families of functions, reentrant
          ‘...‘_r’’ versions of the ‘random’ family; System V shared
          memory and IPC support code
        • several highly-optimized string functions for iX86 processors
        • many math functions
        • the character conversion functions (‘iconv’)
        • the ‘ftw’ and ‘nftw’ functions
        • the floating-point printing function used by ‘printf’ and
          friends and the floating-point reading function used by
          ‘scanf’, ‘strtod’ and friends
        • the ‘catgets’ support and the entire suite of multi-byte and
          wide-character support functions (‘wctype.h’, ‘wchar.h’,
          etc.).
        • versioning of objects on the symbol level

   • Richard Earnshaw for continued support and fixes to the various ARM
     machine files.

   • Paul Eggert for the ‘mktime’ function, for his direction as part of
     the GNU C Library steering committee, and numerous fixes.

   • Roy Eldar for various fixes.

   • Steve Ellcey for various fixes.

   • Mike FABIAN for automating Unicode updates, for updating the locale
     data for ISO 14651, for updating the library Unicode support, and
     for many locale updates and fixes.

   • Gabi Falk for various fixes.

   • Olaf Flebbe and Ralf Bächle for contributing
     ‘sysdeps/mips/fpu_control.h’.

   • Dylan Fleming for work on the AArch64 port.

   • Alistair Francis for Y2038 related fixes.

   • Mike Frysinger for his maintaining of the IA64 architecture and for
     testing and bug fixing.

   • Collin Funk for many fixes and manual improvements.

   • Martin Galvan for contributing gdb pretty printer support to glibc
     and adding an initial set of pretty printers for structures in the
     POSIX Threads library.

   • Romain Geissler for various fixes.

   • Michael Glad for the passphrase-hashing function ‘crypt’ and
     related functions (no longer part of glibc, but we still appreciate
     his work).

   • Wolfram Gloger for contributing the memory allocation functions
     functions ‘malloc’, ‘realloc’ and ‘free’ and related code.

   • Noah Goldstein for contributing extensive x86 / x86-64
     optimizations.

   • Gabriel F. T. Gomes for his improvements for Linux on PowerPC and
     for implementing the IEEE 128-bit floating point type for PowerPC.

   • Torbjörn Granlund for fast implementations of many of the string
     functions (‘memcpy’, ‘strlen’, etc.).

   • Evan Green for work on the RISC-V port.

   • Wangyang Guo for various contributions.

   • Vineet Gupta for their maintainership of the ARC port.

   • Michael J. Haertel for writing the merge sort function ‘qsort’ and
     malloc checking functions like ‘mcheck’.

   • Bruno Haible for his improvements to the ‘iconv’ and locale
     implementations and various fixes.

   • Mao Han for the C-SKY port.

   • Richard Henderson for the port to Linux on Alpha
     (‘alpha-ANYTHING-linux’) and software floating-point support.

   • David Holsgrove for the port to Linux on MicroBlaze.

   • Leonhard Holz for various fixes.

   • Stafford Horne for maintainership of the OpenRISC port.

   • Ying Huang for work on the MIPS port.

   • William Hunt for work on memory management.

   • Guy-Fleury Iteriteka for many contributions to Hurd support.

   • Daniel Jacobowitz for various fixes and enhancements.

   • Andreas Jaeger for the port to Linux on x86-64
     (‘x86_64-ANYTHING-linux’ and his work on Linux for MIPS
     (‘mips-ANYTHING-linux’), implementing the ‘ldconfig’ program,
     providing a test suite for the math library and for his direction
     as part of the GNU C Library steering committee.

   • Dev Jain for various fixes and work on memory management.

   • Sam James for various fixes.

   • Aurelien Jarno for various fixes.

   • Rical Jasan for contributing various fixes in the GNU C Library
     manual.

   • Michael Jeanson for the restartable sequences support.

   • Jakub Jelinek for implementing a number of checking functions,
     software floating-point support and for his direction as part of
     the GNU C Library steering committee.

   • Simon Josefsson for the ‘libidn’ add-on.

   • Ben Kallus for various fixes.

   • Geoffrey Keating for the port to Linux on PowerPC
     (‘powerpc-ANYTHING-linux’).

   • Brendan Kehoe for contributing the port to the MIPS DECStation
     running Ultrix 4 (‘mips-dec-ultrix4’) and the port to the DEC Alpha
     running OSF/1 (‘alpha-dec-osf1’).

   • Mark Kettenis for implementing the ‘utmpx’ interface and a utmp
     daemon, and for a Hesiod NSS module.

   • Yury Khrustalev for extensive work on the AArch64 port and its
     maintainership, and various fixes.

   • Simon Kissane for gmon improvements.

   • Andi Kleen for implementing pthreads lock elision with TSX.

   • Kazumoto Kojima for the port of the Mach and Hurd code to the MIPS
     architecture (‘mips-ANYTHING-gnu’) and for his work on the SH
     architecture.

   • Pavel Kozlov for maintainership of the ARC port.

   • Maxim Kuvyrkov for various fixes.

   • Andreas Krebbel for his work on Linux for s390 and s390x.

   • Thorsten Kukuk for providing an implementation for NIS (YP) and
     NIS+, securelevel 0, 1 and 2 and for the implementation for a
     caching daemon for NSS (‘nscd’).

   • Akhilesh Kumar for various fixes to locales.

   • Luna Lamb for various contributions to the AArch64 port.

   • Jeff Law for various fixes.

   • Doug Lea for contributing the memory allocation functions ‘malloc’,
     ‘realloc’ and ‘free’ and related code.

   • Chris Leonard for various fixes and enhancements to localedata.

   • Ilya Leoshkevich for various fixes.

   • Dmitry V. Levin for various fixes.

   • Stefan Liebler for numerous fixes and the maintainership of the
     S390 port.

   • Hongjiu Lu for providing the support for a Linux 32-bit runtime
     environment under x86-64 (x32), for porting to Linux on IA64, for
     improved string functions, a framework for testing IFUNC
     implementations, for implementing Intel Control-Flow Enforcement
     Technology, many x86-64 improvements, and many bug fixes.

   • Zhaoming Luo for work on the hurd port.

   • Rafał Lużyński for contributing support for two grammatical forms
     of month names, and for various fixes to locales.

   • Maxim Kuvyrkov for various fixes.

   • Luis Machado for optimized functions on PowerPC.

   • David J. MacKenzie for his contribution to the ‘getopt’ function
     and writing the ‘tar.h’ header.

   • Lukasz Majewski for Y2038 related fixes.

   • Miguel Martín for contributed tests.

   • Manjunath Matti for contributions to the PowerPC port.

   • Greg McGary for adding runtime support for bounds checking.

   • Roland McGrath for writing most of the GNU C Library originally,
     for his work on the Hurd port, his direction as part of the GNU C
     Library steering committee and as FSF Project Steward for the GNU C
     Library, and for many bug fixes and reviewing of contributions.

   • Allan McRae for various fixes.

   • Meng Qinggang for contributions to the LoongArch port.

   • Aaron Merey for contributed tests.

   • Jason Merrill for the port to the Sequent Symmetry running Dynix
     version 3 (‘i386-sequent-bsd’).

   • Chris Metcalf for the port to Linux/Tile (‘tilegx-ANYTHING-linux’
     and ‘tilepro-ANYTHING-linux’) and support for the generic Linux
     kernel syscall interface used by several newer ports.

   • Jim Meyering for various fixes.

   • David Miller for contributing the port to Linux/Sparc
     (‘sparc*-ANYTHING-linux’).

   • Cupertino Miranda for various fixes.

   • Alan Modra for his improvements for Linux on PowerPC.

   • Lenard Mollenkopf for work on C2Y support.

   • Sachin Monga for many fixes and contributions and maintainership of
     the PowerPC port.

   • David Mosberger-Tang for contributing the port to Linux/Alpha
     (‘alpha-ANYTHING-linux’).

   • Wainer dos Santos Moschetta for various fixes to powerpc.

   • Stephen Moshier for implementing some 128-bit long double format
     math functions.

   • Stephen Munroe for his port to Linux on PowerPC64
     (‘powerpc64-ANYTHING-linux’) and for adding optimized
     implementations for PowerPC.

   • Paul E. Murphy for various fixes on PowerPC and for implementing
     the IEEE 128-bit floating point type for PowerPC.

   • Joseph S. Myers for numerous bug fixes for the libm functions, for
     his maintainership of the ARM and MIPS architectures and the math
     component, improving cross-compilation and cross-testing of the GNU
     C Library, expanded coverage of conformtest, merging the ports/
     subdirectory into the GNU C Library main repository, C23 support,
     and his direction as FSF Project Steward for the GNU C Library.

   • Marko Myllynen for various fixes.

   • Szabolcs Nagy for many fixes, contributions, and maintainership of
     AArch64.

   • Nab for various fixes.

   • Will Newton for contributing some optimized string functions and
     pointer encryption support for ARM and various fixes.

   • Carlos O'Donell for his maintainership of the HPPA architecture,
     for maintaining the GNU C Library web pages and wiki, for his
     direction as FSF Project Steward for the GNU C Library and numerous
     bug fixes.

   • Alexandre Oliva for adding TLS descriptors for LD and GD on x86 and
     x86-64, for the am33 port, for completing the MIPS n64/n32/o32
     multilib port, for thread-safety, async-signal safety and
     async-cancellation safety documentation in the manual, for his
     direction as FSF Project Maintainer and for various fixes.

   • Sunil K. Pandey for many fixes and x86-64 improvements.

   • Ronan Pigott for various fixes.

   • Andrew Pinski for contributions to the AArch64 port.

   • Paul Pluzhnikov for various fixes.

   • Marek Polacek for various fixes.

   • Yat Long Poon for contributions to the Aarch64 port.

   • Siddhesh Poyarekar for various fixes, an implementation of a
     framework for performance benchmarking of functions, implementing
     the tunables infrastructure, and handbook improvements.

   • Tom Quinn for contributing the startup code to support SunOS shared
     libraries and the port to SGI machines running Irix 4
     (‘mips-sgi-irix4’).

   • Tulio Magno Quites Machado Filho for adding a new class of
     installed headers for low-level platform-specific functionality,
     including the low-level platform-specific headers for PowerPC, for
     their maintainership of the PowerPC port and various fixes.

   • Joe Ramsay for many contributions to the AArch64 port, in
     particular the vector library.

   • Jens Remus for work on the s390 port.

   • Torvald Riegel for the implementation of new algorithms for
     semaphores, pthread_rwlock and condition variables.

   • Maciej W. Rozycki for MIPS fixes, support for ABSOLUTE symbols,
     various fixes and many contributions to the test suite.

   • Leonardo Sandoval for various fixes.

   • Pravin Satpute for writing sorting rules for some Indian languages.

   • Douglas C. Schmidt for writing the quick sort function used as a
     fallback by ‘qsort’.

   • Will Schmidt for optimized string functions on PowerPC.

   • Andreas Schwab for the port to Linux/m68k (‘m68k-ANYTHING-linux’),
     for his direction as part of the GNU C Library steering committee,
     and for various bug fixes.

   • Martin Schwidefsky for porting to Linux on s390
     (‘s390-ANYTHING-linux’) and s390x (‘s390x-ANYTHING-linux’).

   • Thomas Schwinge for his contribution to Hurd and the SH
     architecture.

   • Martin Sebor for various fixes.

   • Andrew Senkevich for contributing vector math function
     implementations for x86.

   • Carlos Eduardo Seo for optimized functions on PowerPC.

   • Arjun Shankar for testing, bug fixing, test suite additions, and
     many handbook contributions.

   • Marcus Shawcroft for contributing the AArch64 port.

   • TAMUKI Shoichi for various fixes.

   • Joe Simmons-Talbott for various fixes.

   • Franz Sirl for various fixes.

   • Malte Skarupke for work on the threading library.

   • Gavin Smith for various fixes.

   • Jes Sorensen for porting to Linux on IA64 (‘ia64-ANYTHING-linux’).

   • Julian Squires for various fixes.

   • Rajalakshmi Srinivasaraghavan for various fixes and optimizations
     on PowerPC, for implementing the IEEE 128-bit floating point type
     for PowerPC., and for their maintainership of the PowerPC port.

   • Richard Stallman for his contribution to the ‘getopt’ function.

   • Alfred M. Szmidt for various fixes.

   • Chung-Lin Tang for contributing the Nios II port.

   • Ian Lance Taylor for contributing the port to the MIPS DECStation
     running Ultrix 4 (‘mips-dec-ultrix4’).

   • Samuel Thibault for maintainership of and numerous improvements to
     the Hurd port.

   • Pino Toscano for various fixes.

   • Matt Turner for various fixes to the Alpha port.

   • Valery Ushakov for locale fixes.

   • Feifei Wang for Hygon-related contributions.

   • Hsiangkai Wang for various fixes.

   • Tim Waugh for the implementation of the POSIX.2 ‘wordexp’ function
     family.

   • Ulrich Weigand for various fixes to the PowerPC64 and Arm ports.

   • Florian Weimer for his maintainership of the network and
     dynamic-link components, for handling of security issues, and for
     numerous fixes and contributions.

   • Zack Weinberg for the ‘explicit_bzero’ implementation and for
     various fixes.

   • Mark Wielaard for various fixes.

   • Xi Ruoyao for various fixes and work on the loongarch port.

   • Qixing ksyx Xue for various fixes.

   • Yao Zihong for contributions to the RISC-V port.

   • Adam Yi for various fixes.

   • Eric Youngdale for implementing versioning of objects on the symbol
     level.

   • YunQiang Su for work on the MIPS port.

   • Adhemerval Zanella for optimized functions on PowerPC, ISO C
     threads support, the work on tunables, fortify improvements, the
     CORE-MATH integration, thread safety, handling of security issues,
     and numerous further contributions and fixes.

   • Xuelei Zhang for optimized functions on AArch64.

   • Junxian Zhu for work on the MIPS and RISC-V port.

   • Paul Zimmermann for the extensive work on CORE-MATH, the
     mathematical functions, and their testsuite.

   • Claudiu Zissulescu for work on the SFrame support.

   Some code in the GNU C Library comes from other projects and might be
under a different license:

   • The time zone support code is derived from the public-domain time
     zone package by Arthur David Olson and his many contributors.

   • Some of the support code for Mach is taken from Mach 3.0 by CMU;
     the file ‘if_ppp.h’ is also copyright by CMU, but under a different
     license; see the file ‘LICENSES’ for the text of the licenses.

   • The random number generation functions ‘random’, ‘srandom’,
     ‘setstate’ and ‘initstate’, which are also the basis for the ‘rand’
     and ‘srand’ functions, were written by Earl T. Cohen for the
     University of California at Berkeley and are copyrighted by the
     Regents of the University of California.  They have undergone minor
     changes to fit into the GNU C Library and to fit the ISO C
     standard, but the functional code is Berkeley's.

   • The Internet-related code (most of the ‘inet’ subdirectory) and
     several other miscellaneous functions and header files have been
     included from 4.4 BSD with little or no modification.  The copying
     permission notice for this code can be found in the file ‘LICENSES’
     in the source distribution.

   • The ‘getaddrinfo’ and ‘getnameinfo’ functions and supporting code
     were written by Craig Metz; see the file ‘LICENSES’ for details on
     their licensing.

   • The DNS resolver code is taken directly from BIND 8.2.3-T5B, which
     includes copyrighted code from UC Berkeley and from Digital
     Equipment Corporation.  See the file ‘LICENSES’ for the text of the
     DEC license.

   • The code to support Sun RPC is taken verbatim from Sun's RPCSRC-4.0
     distribution; see the file ‘LICENSES’ for the text of the license.

   • The math functions are taken from ‘fdlibm-5.1’ by Sun Microsystems,
     as modified by J.T. Conklin, Ian Lance Taylor, Ulrich Drepper,
     Andreas Schwab, and Roland McGrath.

   • Many of the IEEE 64-bit double precision math functions (in the
     ‘sysdeps/ieee754/dbl-64’ subdirectory) come from the IBM Accurate
     Mathematical Library, contributed by IBM.

   • Many of the IA64 math functions are taken from a collection of
     "Highly Optimized Mathematical Functions for Itanium" that Intel
     makes available under a free license; see the file ‘LICENSES’ for
     details.

   • Code for trigonometric, exponential and related functions in the
     ‘sysdeps/ieee754/flt-32’ subdirectory is shared with the
     ‘CORE-MATH’ project with main developers Paul Zimmermann and Alexei
     Sibidanov, see again the file ‘LICENSES’.


File: libc.info,  Node: Free Manuals,  Next: Copying,  Prev: Contributors,  Up: Top

Appendix G Free Software Needs Free Documentation
*************************************************

The biggest deficiency in the free software community today is not in
the software--it is the lack of good free documentation that we can
include with the free software.  Many of our most important programs do
not come with free reference manuals and free introductory texts.
Documentation is an essential part of any software package; when an
important free software package does not come with a free manual and a
free tutorial, that is a major gap.  We have many such gaps today.

   Consider Perl, for instance.  The tutorial manuals that people
normally use are non-free.  How did this come about?  Because the
authors of those manuals published them with restrictive terms--no
copying, no modification, source files not available--which exclude them
from the free software world.

   That wasn't the first time this sort of thing happened, and it was
far from the last.  Many times we have heard a GNU user eagerly describe
a manual that he is writing, his intended contribution to the community,
only to learn that he had ruined everything by signing a publication
contract to make it non-free.

   Free documentation, like free software, is a matter of freedom, not
price.  The problem with the non-free manual is not that publishers
charge a price for printed copies--that in itself is fine.  (The Free
Software Foundation sells printed copies of manuals, too.)  The problem
is the restrictions on the use of the manual.  Free manuals are
available in source code form, and give you permission to copy and
modify.  Non-free manuals do not allow this.

   The criteria of freedom for a free manual are roughly the same as for
free software.  Redistribution (including the normal kinds of commercial
redistribution) must be permitted, so that the manual can accompany
every copy of the program, both on-line and on paper.

   Permission for modification of the technical content is crucial too.
When people modify the software, adding or changing features, if they
are conscientious they will change the manual too--so they can provide
accurate and clear documentation for the modified program.  A manual
that leaves you no choice but to write a new manual to document a
changed version of the program is not really available to our community.

   Some kinds of limits on the way modification is handled are
acceptable.  For example, requirements to preserve the original author's
copyright notice, the distribution terms, or the list of authors, are
ok.  It is also no problem to require modified versions to include
notice that they were modified.  Even entire sections that may not be
deleted or changed are acceptable, as long as they deal with
nontechnical topics (like this one).  These kinds of restrictions are
acceptable because they don't obstruct the community's normal use of the
manual.

   However, it must be possible to modify all the _technical_ content of
the manual, and then distribute the result in all the usual media,
through all the usual channels.  Otherwise, the restrictions obstruct
the use of the manual, it is not free, and we need another manual to
replace it.

   Please spread the word about this issue.  Our community continues to
lose manuals to proprietary publishing.  If we spread the word that free
software needs free reference manuals and free tutorials, perhaps the
next person who wants to contribute by writing documentation will
realize, before it is too late, that only free manuals contribute to the
free software community.

   If you are writing documentation, please insist on publishing it
under the GNU Free Documentation License or another free documentation
license.  Remember that this decision requires your approval--you don't
have to let the publisher decide.  Some commercial publishers will use a
free license if you insist, but they will not propose the option; it is
up to you to raise the issue and say firmly that this is what you want.
If the publisher you are dealing with refuses, please try other
publishers.  If you're not sure whether a proposed license is free,
write to <licensing@gnu.org>.

   You can encourage commercial publishers to sell more free, copylefted
manuals and tutorials by buying them, and particularly by buying copies
from the publishers that paid for their writing or for major
improvements.  Meanwhile, try to avoid buying non-free documentation at
all.  Check the distribution terms of a manual before you buy it, and
insist that whoever seeks your business must respect your freedom.
Check the history of the book, and try reward the publishers that have
paid or pay the authors to work on it.

   The Free Software Foundation maintains a list of free documentation
published by other publishers, at
<https://www.fsf.org/doc/other-free-books.html>.


File: libc.info,  Node: Copying,  Next: Documentation License,  Prev: Free Manuals,  Up: Top

Appendix H GNU Lesser General Public License
********************************************

                      Version 2.1, February 1999

     Copyright © 1991, 1999 Free Software Foundation, Inc.
     <https://fsf.org/>

     Everyone is permitted to copy and distribute verbatim copies
     of this license document, but changing it is not allowed.

     [This is the first released version of the Lesser GPL.  It also counts
     as the successor of the GNU Library Public License, version 2, hence the
     version number 2.1.]

Preamble
--------

The licenses for most software are designed to take away your freedom to
share and change it.  By contrast, the GNU General Public Licenses are
intended to guarantee your freedom to share and change free software--to
make sure the software is free for all its users.

   This license, the Lesser General Public License, applies to some
specially designated software--typically libraries--of the Free Software
Foundation and other authors who decide to use it.  You can use it too,
but we suggest you first think carefully about whether this license or
the ordinary General Public License is the better strategy to use in any
particular case, based on the explanations below.

   When we speak of free software, we are referring to freedom of use,
not price.  Our General Public Licenses are designed to make sure that
you have the freedom to distribute copies of free software (and charge
for this service if you wish); that you receive source code or can get
it if you want it; that you can change the software and use pieces of it
in new free programs; and that you are informed that you can do these
things.

   To protect your rights, we need to make restrictions that forbid
distributors to deny you these rights or to ask you to surrender these
rights.  These restrictions translate to certain responsibilities for
you if you distribute copies of the library or if you modify it.

   For example, if you distribute copies of the library, whether gratis
or for a fee, you must give the recipients all the rights that we gave
you.  You must make sure that they, too, receive or can get the source
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File: libc.info,  Node: Documentation License,  Next: Concept Index,  Prev: Copying,  Up: Top

Appendix I GNU Free Documentation License
*****************************************

                     Version 1.3, 3 November 2008

     Copyright © 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
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  0. PREAMBLE

     The purpose of this License is to make a manual, textbook, or other
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     This License is a kind of "copyleft", which means that derivative
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     We have designed this License in order to use it for manuals for
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     If you publish or distribute Opaque copies of the Document
     numbering more than 100, you must either include a machine-readable
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     reasonably prudent steps, when you begin distribution of Opaque
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     remain thus accessible at the stated location until at least one
     year after the last time you distribute an Opaque copy (directly or
     through your agents or retailers) of that edition to the public.

     It is requested, but not required, that you contact the authors of
     the Document well before redistributing any large number of copies,
     to give them a chance to provide you with an updated version of the
     Document.

  4. MODIFICATIONS

     You may copy and distribute a Modified Version of the Document
     under the conditions of sections 2 and 3 above, provided that you
     release the Modified Version under precisely this License, with the
     Modified Version filling the role of the Document, thus licensing
     distribution and modification of the Modified Version to whoever
     possesses a copy of it.  In addition, you must do these things in
     the Modified Version:

       A. Use in the Title Page (and on the covers, if any) a title
          distinct from that of the Document, and from those of previous
          versions (which should, if there were any, be listed in the
          History section of the Document).  You may use the same title
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       B. List on the Title Page, as authors, one or more persons or
          entities responsible for authorship of the modifications in
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          principal authors of the Document (all of its principal
          authors, if it has fewer than five), unless they release you
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       C. State on the Title page the name of the publisher of the
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       D. Preserve all the copyright notices of the Document.

       E. Add an appropriate copyright notice for your modifications
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       F. Include, immediately after the copyright notices, a license
          notice giving the public permission to use the Modified
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       G. Preserve in that license notice the full lists of Invariant
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       H. Include an unaltered copy of this License.

       I. Preserve the section Entitled "History", Preserve its Title,
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       K. For any section Entitled "Acknowledgements" or "Dedications",
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       L. Preserve all the Invariant Sections of the Document, unaltered
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       M. Delete any section Entitled "Endorsements".  Such a section
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       N. Do not retitle any existing section to be Entitled
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       O. Preserve any Warranty Disclaimers.

     If the Modified Version includes new front-matter sections or
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     The author(s) and publisher(s) of the Document do not by this
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  5. COMBINING DOCUMENTS

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     The combined work need only contain one copy of this License, and
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     In the combination, you must combine any sections Entitled
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     must delete all sections Entitled "Endorsements."

  6. COLLECTIONS OF DOCUMENTS

     You may make a collection consisting of the Document and other
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     document.

  7. AGGREGATION WITH INDEPENDENT WORKS

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  8. TRANSLATION

     Translation is considered a kind of modification, so you may
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     prevail.

     If a section in the Document is Entitled "Acknowledgements",
     "Dedications", or "History", the requirement (section 4) to
     Preserve its Title (section 1) will typically require changing the
     actual title.

  9. TERMINATION

     You may not copy, modify, sublicense, or distribute the Document
     except as expressly provided under this License.  Any attempt
     otherwise to copy, modify, sublicense, or distribute it is void,
     and will automatically terminate your rights under this License.

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     license from a particular copyright holder is reinstated (a)
     provisionally, unless and until the copyright holder explicitly and
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     Moreover, your license from a particular copyright holder is
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     received notice of violation of this License (for any work) from
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     after your receipt of the notice.

     Termination of your rights under this section does not terminate
     the licenses of parties who have received copies or rights from you
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     same material does not give you any rights to use it.

  10. FUTURE REVISIONS OF THIS LICENSE

     The Free Software Foundation may publish new, revised versions of
     the GNU Free Documentation License from time to time.  Such new
     versions will be similar in spirit to the present version, but may
     differ in detail to address new problems or concerns.  See
     <https://www.gnu.org/licenses/>.

     Each version of the License is given a distinguishing version
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     Document does not specify a version number of this License, you may
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     decide which future versions of this License can be used, that
     proxy's public statement of acceptance of a version permanently
     authorizes you to choose that version for the Document.

  11. RELICENSING

     "Massive Multiauthor Collaboration Site" (or "MMC Site") means any
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     public wiki that anybody can edit is an example of such a server.
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     license published by Creative Commons Corporation, a not-for-profit
     corporation with a principal place of business in San Francisco,
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     in part, as part of another Document.

     An MMC is "eligible for relicensing" if it is licensed under this
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     incorporated in whole or in part into the MMC, (1) had no cover
     texts or invariant sections, and (2) were thus incorporated prior
     to November 1, 2008.

     The operator of an MMC Site may republish an MMC contained in the
     site under CC-BY-SA on the same site at any time before August 1,
     2009, provided the MMC is eligible for relicensing.

ADDENDUM: How to use this License for your documents
====================================================

To use this License in a document you have written, include a copy of
the License in the document and put the following copyright and license
notices just after the title page:

       Copyright (C)  YEAR  YOUR NAME.
       Permission is granted to copy, distribute and/or modify this document
       under the terms of the GNU Free Documentation License, Version 1.3
       or any later version published by the Free Software Foundation;
       with no Invariant Sections, no Front-Cover Texts, and no Back-Cover
       Texts.  A copy of the license is included in the section entitled ``GNU
       Free Documentation License''.

   If you have Invariant Sections, Front-Cover Texts and Back-Cover
Texts, replace the "with...Texts." line with this:

         with the Invariant Sections being LIST THEIR TITLES, with
         the Front-Cover Texts being LIST, and with the Back-Cover Texts
         being LIST.

   If you have Invariant Sections without Cover Texts, or some other
combination of the three, merge those two alternatives to suit the
situation.

   If your document contains nontrivial examples of program code, we
recommend releasing these examples in parallel under your choice of free
software license, such as the GNU General Public License, to permit
their use in free software.


File: libc.info,  Node: Concept Index,  Next: Type Index,  Prev: Documentation License,  Up: Top

Concept Index
*************

�[index�]
* Menu:

* _POSIX_OPTION_ORDER environment variable.: Standard Environment.
                                                              (line 117)
* _POSIX_SAVED_IDS:                      How Change Persona.  (line   6)
* :identifier:                           Other Safety Remarks.
                                                              (line 147)
* !posix:                                Other Safety Remarks.
                                                              (line 135)
* ?:                                     Error Codes.         (line 567)
* ...at functions:                       Descriptor-Relative Access.
                                                              (line   6)
* .lib section in a.out corrupted:       Error Codes.         (line 758)
* /condition:                            Other Safety Remarks.
                                                              (line 168)
* /etc/hostname:                         Host Identification. (line  93)
* /etc/nsswitch.conf:                    NSS Configuration File.
                                                              (line   6)
* 4.N BSD Unix:                          Berkeley Unix.       (line   6)
* abort signal:                          Program Error Signals.
                                                              (line 141)
* aborting a program:                    Aborting a Program.  (line   6)
* absolute file name:                    File Name Resolution.
                                                              (line  19)
* absolute priority:                     Absolute Priority.   (line   6)
* absolute value functions:              Absolute Value.      (line   6)
* AC-Safe:                               POSIX Safety Concepts.
                                                              (line  49)
* AC-Unsafe:                             POSIX Safety Concepts.
                                                              (line  68)
* accepting connections:                 Accepting Connections.
                                                              (line   6)
* access permission for a file:          Access Permission.   (line   6)
* access, testing for:                   Testing File Access. (line   6)
* Accessing a corrupted shared library:  Error Codes.         (line 754)
* accessing directories:                 Accessing Directories.
                                                              (line   6)
* Address already in use:                Error Codes.         (line 330)
* Address family not supported by protocol: Error Codes.      (line 324)
* address of socket:                     Socket Addresses.    (line   6)
* address space:                         Memory Subsystem.    (line   6)
* address space <1>:                     Program Basics.      (line   6)
* Advertise error:                       Error Codes.         (line 722)
* alarm signal:                          Alarm Signals.       (line  20)
* alarms, setting:                       Setting an Alarm.    (line  10)
* aliases:                               NSS Basics.          (line  24)
* alignment (in obstacks):               Obstacks Data Alignment.
                                                              (line   6)
* alignment (with malloc):               Aligned Memory Blocks.
                                                              (line   6)
* alloca disadvantages:                  Disadvantages of Alloca.
                                                              (line   6)
* alloca function:                       Variable Size Automatic.
                                                              (line   6)
* allocating file storage:               Storage Allocation.  (line   6)
* allocating pseudo-terminals:           Allocation.          (line   6)
* allocation (obstacks):                 Allocation in an Obstack.
                                                              (line   6)
* allocation debugging:                  Allocation Debugging.
                                                              (line   6)
* allocation of memory with malloc:      Basic Allocation.    (line   6)
* allocation size of string:             Representation of Strings.
                                                              (line  61)
* allocation statistics:                 Statistics of Malloc.
                                                              (line   6)
* alphabetic character:                  Classification of Characters.
                                                              (line  56)
* alphabetic character <1>:              Classification of Wide Characters.
                                                              (line  92)
* alphanumeric character:                Classification of Characters.
                                                              (line  77)
* alphanumeric character <1>:            Classification of Wide Characters.
                                                              (line  76)
* alternative malloc implementations:    Replacing malloc.    (line   6)
* append-access files:                   File Position.       (line  28)
* argc (program argument count):         Program Arguments.   (line  16)
* argp (program argument parser):        Argp.                (line   6)
* argp parser functions:                 Argp Parser Functions.
                                                              (line  13)
* ARGP_HELP_FMT environment variable:    Argp User Customization.
                                                              (line   6)
* Argument list too long:                Error Codes.         (line  52)
* argument parsing with argp:            Argp.                (line   6)
* argument promotion:                    Calling Variadics.   (line  27)
* argument vectors, null-byte separated: Argz and Envz Vectors.
                                                              (line   6)
* arguments (variadic functions):        Receiving Arguments. (line   6)
* arguments, how many:                   How Many Arguments.  (line   6)
* arguments, to program:                 Program Arguments.   (line   6)
* argv (program argument vector):        Program Arguments.   (line  16)
* argz vectors (string vectors):         Argz and Envz Vectors.
                                                              (line   6)
* arithmetic expansion:                  Expansion Stages.    (line  22)
* array comparison functions:            String/Array Comparison.
                                                              (line   6)
* array copy functions:                  Copying Strings and Arrays.
                                                              (line   9)
* array search function:                 Array Search Function.
                                                              (line   6)
* array sort function:                   Array Sort Function. (line   6)
* AS-Safe:                               POSIX Safety Concepts.
                                                              (line  35)
* AS-Unsafe:                             POSIX Safety Concepts.
                                                              (line  68)
* ASCII character:                       Classification of Characters.
                                                              (line 164)
* assertions:                            Consistency Checking.
                                                              (line   6)
* Async-Cancel-Safe:                     POSIX Safety Concepts.
                                                              (line  49)
* Async-Cancel-Unsafe:                   POSIX Safety Concepts.
                                                              (line  68)
* Async-Signal-Safe:                     POSIX Safety Concepts.
                                                              (line  35)
* Async-Signal-Unsafe:                   POSIX Safety Concepts.
                                                              (line  68)
* AT_* file name resolution flags:       Descriptor-Relative Access.
                                                              (line  87)
* Attempting to link in too many shared libraries: Error Codes.
                                                              (line 762)
* attributes of a file:                  Attribute Meanings.  (line   6)
* Authentication error:                  Error Codes.         (line 508)
* automatic freeing:                     Variable Size Automatic.
                                                              (line   6)
* automatic memory allocation:           Memory Allocation and C.
                                                              (line  19)
* automatic storage class:               Memory Allocation and C.
                                                              (line  19)
* automatic storage with variable size:  Variable Size Automatic.
                                                              (line   6)
* auxiliary vector:                      Auxiliary Vector.    (line   6)
* auxiliary vector (diagnostics):        Dynamic Linker Diagnostics Values.
                                                              (line  63)
* background job:                        Concepts of Job Control.
                                                              (line  47)
* background job, launching:             Foreground and Background.
                                                              (line  62)
* backtrace:                             Backtraces.          (line   6)
* backtrace_fd:                          Backtraces.          (line   6)
* backtrace_symbols:                     Backtraces.          (line   6)
* Bad address:                           Error Codes.         (line  95)
* Bad file descriptor:                   Error Codes.         (line  65)
* Bad font file format:                  Error Codes.         (line 710)
* Bad message:                           Error Codes.         (line 584)
* base (of floating point number):       Floating Point Concepts.
                                                              (line  20)
* baud rate:                             Line Speed.          (line   6)
* Berkeley Unix:                         Berkeley Unix.       (line   6)
* Bessel functions:                      Special Functions.   (line   6)
* bias (of floating point number exponent): Floating Point Concepts.
                                                              (line  27)
* big-endian:                            Byte Order.          (line   6)
* binary I/O to a stream:                Block Input/Output.  (line   9)
* binary search function (for arrays):   Array Search Function.
                                                              (line   6)
* binary stream:                         Binary Streams.      (line  13)
* binding a socket address:              Socket Addresses.    (line   6)
* blank character:                       Classification of Characters.
                                                              (line 130)
* blank character <1>:                   Classification of Wide Characters.
                                                              (line 273)
* Block device required:                 Error Codes.         (line 100)
* block I/O to a stream:                 Block Input/Output.  (line   9)
* blocked signals:                       Delivery of Signal.  (line   6)
* blocked signals, checking for:         Checking for Pending Signals.
                                                              (line   6)
* blocking signals:                      Blocking Signals.    (line   6)
* blocking signals, in a handler:        Blocking for Handler.
                                                              (line   6)
* bootstrapping, and services:           Actions in the NSS configuration.
                                                              (line 112)
* break condition, detecting:            Input Modes.         (line  63)
* break condition, generating:           Line Control.        (line  14)
* breaking a string into tokens:         Finding Tokens in a String.
                                                              (line   6)
* Broken pipe:                           Error Codes.         (line 202)
* broken pipe signal:                    Operation Error Signals.
                                                              (line  14)
* broken-down time:                      Time Basics.         (line  54)
* broken-down time <1>:                  Broken-down Time.    (line   6)
* BSD Unix:                              Berkeley Unix.       (line   6)
* buffering of streams:                  Stream Buffering.    (line   6)
* buffering, controlling:                Controlling Buffering.
                                                              (line   8)
* bugs, reporting:                       Reporting Bugs.      (line   6)
* bus error:                             Program Error Signals.
                                                              (line 138)
* butterfly:                             Misc FP Arithmetic.  (line 204)
* byte order conversion, for socket:     Byte Order.          (line   6)
* byte stream:                           Socket Concepts.     (line  12)
* C threads:                             ISO C Threads.       (line   6)
* C++ streams:                           Streams and I18N.    (line  30)
* calendar time:                         Time Basics.         (line  13)
* calendar time and broken-down time:    Broken-down Time.    (line   6)
* calendar time, simple:                 Time Basics.         (line  47)
* calendar, Gregorian:                   Time Basics.         (line  54)
* call once:                             Call Once.           (line   6)
* calling variadic functions:            Calling Variadics.   (line   6)
* Can not access a needed shared library: Error Codes.        (line 750)
* Cannot allocate memory:                Error Codes.         (line  85)
* Cannot assign requested address:       Error Codes.         (line 335)
* Cannot exec a shared library directly: Error Codes.         (line 524)
* Cannot send after transport endpoint shutdown: Error Codes. (line 394)
* canonical input processing:            Canonical or Not.    (line   9)
* capacity limits, POSIX:                General Limits.      (line   6)
* carrier detect:                        Control Modes.       (line  22)
* case conversion of characters:         Case Conversion.     (line   6)
* catching signals:                      Delivery of Signal.  (line  13)
* categories for locales:                Locale Categories.   (line   6)
* change working directory:              Working Directory.   (line   6)
* changing the locale:                   Setting the Locale.  (line  18)
* changing the size of a block (malloc): Changing Block Size. (line   6)
* changing the size of a block (obstacks): Growing Objects.   (line   6)
* Channel number out of range:           Error Codes.         (line 650)
* channels:                              Stream/Descriptor Precautions.
                                                              (line   6)
* character case conversion:             Case Conversion.     (line   6)
* character predicates:                  Classification of Characters.
                                                              (line   6)
* character testing:                     Classification of Characters.
                                                              (line   6)
* checking for pending signals:          Checking for Pending Signals.
                                                              (line   6)
* child process:                         Processor Time.      (line  32)
* child process <1>:                     Processes.           (line  13)
* child process <2>:                     Process Creation Concepts.
                                                              (line   9)
* child process signal:                  Job Control Signals. (line  15)
* chunks:                                Obstack Chunks.      (line   6)
* classes, floating-point:               Floating Point Classes.
                                                              (line   6)
* classification of characters:          Classification of Characters.
                                                              (line   6)
* cleaning up a stream:                  Linked Channels.     (line  15)
* clearing terminal input queue:         Line Control.        (line  67)
* client:                                Connections.         (line   6)
* clock ticks:                           Time Types.          (line  15)
* clock ticks <1>:                       Processor And CPU Time.
                                                              (line  19)
* clock, disciplining:                   Setting and Adjusting the Time.
                                                              (line  60)
* clock, high accuracy:                  Setting and Adjusting the Time.
                                                              (line  60)
* close-on-exec (file descriptor flag):  Descriptor Flags.    (line  54)
* closing a file descriptor:             Opening and Closing Files.
                                                              (line   6)
* closing a socket:                      Closing a Socket.    (line   6)
* closing a stream:                      Closing Streams.     (line   6)
* collating strings:                     Collation Functions. (line   6)
* combining locales:                     Choosing Locale.     (line  19)
* command argument syntax:               Argument Syntax.     (line   6)
* command arguments, parsing:            Parsing Program Arguments.
                                                              (line   6)
* command line arguments:                Program Arguments.   (line   6)
* command substitution:                  Expansion Stages.    (line  18)
* common errors in ...at functions:      Descriptor-Relative Access.
                                                              (line 137)
* common errors in descriptor-relative functions: Descriptor-Relative Access.
                                                              (line 137)
* Communication error on send:           Error Codes.         (line 730)
* communication style (of a socket):     Socket Concepts.     (line   6)
* comparing strings and arrays:          String/Array Comparison.
                                                              (line   6)
* Comparison Function:                   Comparison Functions.
                                                              (line   6)
* compiling:                             Configuring and compiling.
                                                              (line   6)
* complex exponentiation functions:      Exponents and Logarithms.
                                                              (line 411)
* complex logarithm functions:           Exponents and Logarithms.
                                                              (line 411)
* complex numbers:                       Complex Numbers.     (line   6)
* complex trigonometric functions:       Trig Functions.      (line 123)
* Computer bought the farm:              Error Codes.         (line 575)
* concatenating strings:                 Copying Strings and Arrays.
                                                              (line   9)
* concatenating strings <1>:             Concatenating Strings.
                                                              (line   6)
* condition variables:                   ISO C Condition Variables.
                                                              (line   6)
* Conditionally Safe Features:           Conditionally Safe Features.
                                                              (line   6)
* condvar:                               ISO C Condition Variables.
                                                              (line   6)
* configuring:                           Configuring and compiling.
                                                              (line   6)
* conjugate complex numbers:             Operations on Complex.
                                                              (line   6)
* connecting a socket:                   Connecting.          (line   6)
* connection:                            Connections.         (line   6)
* Connection refused:                    Error Codes.         (line 408)
* Connection reset by peer:              Error Codes.         (line 361)
* Connection timed out:                  Error Codes.         (line 403)
* consistency checking:                  Consistency Checking.
                                                              (line   6)
* consistency checking, of heap:         Heap Consistency Checking.
                                                              (line   6)
* const:                                 Conditionally Safe Features.
                                                              (line 131)
* constants:                             Memory Concepts.     (line  67)
* constants <1>:                         Mathematical Constants.
                                                              (line   6)
* continue signal:                       Job Control Signals. (line  31)
* control character:                     Classification of Characters.
                                                              (line 156)
* control character <1>:                 Classification of Wide Characters.
                                                              (line 112)
* control operations on files:           Control Operations.  (line   6)
* controlling process:                   Controlling Terminal.
                                                              (line  13)
* controlling terminal:                  Concepts of Job Control.
                                                              (line  40)
* controlling terminal, access to:       Access to the Terminal.
                                                              (line   6)
* controlling terminal, determining:     Identifying the Terminal.
                                                              (line   6)
* controlling terminal, setting:         Open-time Flags.     (line  97)
* conversion specifications (printf):    Formatted Output Basics.
                                                              (line  14)
* conversion specifications (scanf):     Formatted Input Basics.
                                                              (line  18)
* converting byte order:                 Byte Order.          (line   6)
* converting case of characters:         Case Conversion.     (line   6)
* converting file descriptor to stream:  Descriptors and Streams.
                                                              (line   6)
* converting floats to integers:         Rounding Functions.  (line   6)
* converting group ID to group name:     Lookup Group.        (line   6)
* converting group name to group ID:     Lookup Group.        (line   6)
* converting host address to name:       Host Names.          (line   6)
* converting host name to address:       Host Names.          (line   6)
* converting network name to network number: Networks Database.
                                                              (line   6)
* converting network number to network name: Networks Database.
                                                              (line   6)
* converting port number to service name: Services Database.  (line   6)
* converting service name to port number: Services Database.  (line   6)
* converting string to collation order:  Collation Functions. (line  86)
* converting strings to numbers:         Parsing of Numbers.  (line   6)
* converting user ID to user name:       Lookup User.         (line   6)
* converting user name to user ID:       Lookup User.         (line   6)
* cookie, for custom stream:             Streams and Cookies. (line   6)
* Coordinated Universal Time:            Time Basics.         (line  15)
* copy-on-write page fault:              Locked Memory Details.
                                                              (line  40)
* copying files:                         Copying File Data.   (line   6)
* copying strings and arrays:            Copying Strings and Arrays.
                                                              (line   9)
* corrupt:                               Unsafe Features.     (line  26)
* cpu priority:                          Priority.            (line   6)
* CPU time:                              Time Basics.         (line  69)
* CPU time <1>:                          Processor And CPU Time.
                                                              (line  19)
* CPU time <2>:                          Processor Time.      (line   9)
* CPUID (diagnostics):                   Dynamic Linker Diagnostics Values.
                                                              (line 119)
* create on open (file status flag):     Open-time Flags.     (line  23)
* creating a directory:                  Creating Directories.
                                                              (line   6)
* creating a FIFO special file:          FIFO Special Files.  (line   6)
* creating a pipe:                       Creating a Pipe.     (line   6)
* creating a pipe to a subprocess:       Pipe to a Subprocess.
                                                              (line   6)
* creating a process:                    Process Creation Concepts.
                                                              (line   9)
* creating a socket:                     Creating a Socket.   (line   6)
* creating a socket pair:                Socket Pairs.        (line   6)
* creating special files:                Making Special Files.
                                                              (line   6)
* CRNG:                                  Unpredictable Bytes. (line   6)
* cryptographic random number generator: Unpredictable Bytes. (line   6)
* CSPRNG:                                Unpredictable Bytes. (line   6)
* cube root function:                    Exponents and Logarithms.
                                                              (line 273)
* currency symbols:                      Currency Symbol.     (line   6)
* current limit:                         Limits on Resources. (line  17)
* current working directory:             Working Directory.   (line   6)
* custom streams:                        Custom Streams.      (line   6)
* customizing malloc:                    Replacing malloc.    (line   6)
* customizing printf:                    Customizing Printf.  (line   6)
* cwd:                                   Other Safety Remarks.
                                                              (line 121)
* data loss on sockets:                  Socket Concepts.     (line  17)
* data_cache_size tunables:              Hardware Capability Tunables.
                                                              (line   6)
* databases:                             Name Service Switch. (line   6)
* datagram socket:                       Datagrams.           (line   6)
* datagrams, transmitting:               Sending Datagrams.   (line   6)
* date:                                  Time Basics.         (line  18)
* daylight saving time:                  Broken-down Time.    (line  63)
* decimal digit character:               Classification of Characters.
                                                              (line  70)
* decimal-point separator:               General Numeric.     (line  13)
* declaration (compared to definition):  Header Files.        (line  17)
* declaring variadic functions:          Calling Variadics.   (line   6)
* decompose complex numbers:             Operations on Complex.
                                                              (line   6)
* default action (for a signal):         Delivery of Signal.  (line  13)
* default action for a signal:           Basic Signal Handling.
                                                              (line  39)
* default argument promotions:           Calling Variadics.   (line  27)
* default value, and NSS:                Notes on NSS Configuration File.
                                                              (line  11)
* defining new printf conversions:       Customizing Printf.  (line   6)
* definition (compared to declaration):  Header Files.        (line  17)
* delayed suspend character:             Signal Characters.   (line  57)
* deleting a directory:                  Deleting Files.      (line  82)
* deleting a file:                       Deleting Files.      (line   6)
* delivery of signals:                   Delivery of Signal.  (line   6)
* descriptor-based file name resolution: Descriptor-Relative Access.
                                                              (line   6)
* descriptors and streams:               Stream/Descriptor Precautions.
                                                              (line   6)
* Destination address required:          Error Codes.         (line 387)
* deterministic random bit generator:    Unpredictable Bytes. (line   6)
* Device not a stream:                   Error Codes.         (line 612)
* Device or resource busy:               Error Codes.         (line 106)
* diagnostics (dynamic linker):          Dynamic Linker Diagnostics.
                                                              (line   6)
* digit character:                       Classification of Characters.
                                                              (line  70)
* digit character <1>:                   Classification of Wide Characters.
                                                              (line 126)
* directories, accessing:                Accessing Directories.
                                                              (line   6)
* directories, creating:                 Creating Directories.
                                                              (line   6)
* directories, deleting:                 Deleting Files.      (line  82)
* directory:                             Directories.         (line   9)
* directory entry:                       Directories.         (line   9)
* directory hierarchy:                   Working with Directory Trees.
                                                              (line   6)
* Directory not empty:                   Error Codes.         (line 436)
* directory stream:                      Accessing Directories.
                                                              (line  10)
* disadvantages of alloca:               Disadvantages of Alloca.
                                                              (line   6)
* DISCARD character:                     Other Special.       (line  26)
* Disk quota exceeded:                   Error Codes.         (line 453)
* division by zero:                      FP Exceptions.       (line   6)
* dlopen:                                Unsafe Features.     (line  49)
* DNS:                                   Host Identification. (line  17)
* DNS server unavailable:                Actions in the NSS configuration.
                                                              (line  30)
* domain (of socket):                    Socket Concepts.     (line  33)
* domain error:                          Math Error Reporting.
                                                              (line   6)
* domain name:                           Host Identification. (line  20)
* Domain Name System:                    Host Identification. (line  17)
* dot notation, for Internet addresses:  Abstract Host Addresses.
                                                              (line  47)
* DRBG:                                  Unpredictable Bytes. (line   6)
* DSUSP character:                       Signal Characters.   (line  57)
* duplicating file descriptors:          Duplicating Descriptors.
                                                              (line   6)
* dynamic linker:                        Dynamic Linker.      (line   6)
* dynamic linking tunables:              Dynamic Linking Tunables.
                                                              (line   6)
* dynamic loader:                        Dynamic Linker.      (line   6)
* dynamic memory allocation:             Memory Allocation and C.
                                                              (line  26)
* dynamic memory allocation <1>:         Memory Allocation and C.
                                                              (line  31)
* EBCDIC:                                Extended Char Intro. (line 160)
* echo of terminal input:                Local Modes.         (line  26)
* effective group ID:                    Process Persona.     (line   6)
* effective user ID:                     Process Persona.     (line   6)
* efficiency and obstacks:               Extra Fast Growing.  (line   6)
* efficiency of chunks:                  Obstack Chunks.      (line   6)
* EINTR, and restarting interrupted primitives: Interrupted Primitives.
                                                              (line  47)
* elapsed time:                          Time Basics.         (line  26)
* end of file, on a stream:              EOF and Errors.      (line   6)
* end-of-file, on a file descriptor:     I/O Primitives.      (line  26)
* env:                                   Other Safety Remarks.
                                                              (line  26)
* environment:                           Environment Variables.
                                                              (line  22)
* environment access:                    Environment Access.  (line   6)
* environment representation:            Environment Access.  (line   6)
* environment variable:                  Environment Variables.
                                                              (line   6)
* environment vectors, null-byte separated: Argz and Envz Vectors.
                                                              (line   9)
* envz vectors (environment vectors):    Argz and Envz Vectors.
                                                              (line   9)
* EOF character:                         Editing Characters.  (line  11)
* EOL character:                         Editing Characters.  (line  24)
* EOL2 character:                        Editing Characters.  (line  38)
* epoch:                                 Time Basics.         (line  47)
* epoch <1>:                             Time Types.          (line  43)
* ERASE character:                       Editing Characters.  (line  51)
* errno:                                 System Calls.        (line  84)
* error codes:                           Error Reporting.     (line   6)
* error messages, in argp:               Argp Helper Functions.
                                                              (line  33)
* error reporting:                       Error Reporting.     (line   6)
* errors, mathematical:                  Math Error Reporting.
                                                              (line   6)
* establishing a handler:                Signal Actions.      (line   6)
* ethers:                                NSS Basics.          (line  24)
* EUC:                                   Extended Char Intro. (line 192)
* EUC-JP:                                glibc iconv Implementation.
                                                              (line  53)
* exception:                             FP Exceptions.       (line   6)
* exception <1>:                         Program Error Signals.
                                                              (line  49)
* Exchange full:                         Error Codes.         (line 690)
* exclusive lock:                        File Locks.          (line  15)
* Exec format error:                     Error Codes.         (line  59)
* exec functions:                        Executing a File.    (line   6)
* execing a program:                     Memory Concepts.     (line  90)
* executable:                            Memory Concepts.     (line  67)
* executing a file:                      Executing a File.    (line   6)
* exit status:                           Exit Status.         (line   6)
* exit status value:                     Program Termination. (line   6)
* exiting a program:                     Memory Concepts.     (line  90)
* expansion of shell words:              Word Expansion.      (line   6)
* exponent (of floating point number):   Floating Point Concepts.
                                                              (line  23)
* exponentiation functions:              Exponents and Logarithms.
                                                              (line   6)
* extending printf:                      Customizing Printf.  (line   6)
* extracting file descriptor from stream: Descriptors and Streams.
                                                              (line   6)
* fcntl function:                        Control Operations.  (line   6)
* fd:                                    Other Safety Remarks.
                                                              (line  67)
* FDL, GNU Free Documentation License:   Documentation License.
                                                              (line   6)
* feature test macros:                   Feature Test Macros. (line   6)
* field splitting:                       Expansion Stages.    (line  25)
* FIFO special file:                     Pipes and FIFOs.     (line  12)
* file access permission:                Access Permission.   (line   6)
* file access time:                      File Times.          (line   6)
* file allocation:                       Storage Allocation.  (line   6)
* file attribute modification time:      File Times.          (line   6)
* file attributes:                       Attribute Meanings.  (line   6)
* file copy:                             Copying File Data.   (line   6)
* file creation mask:                    Setting Permissions. (line   6)
* file descriptor flags:                 Descriptor Flags.    (line   6)
* File descriptor in bad state:          Error Codes.         (line 742)
* file descriptor sets, for select:      Waiting for I/O.     (line  30)
* file descriptors, standard:            Descriptors and Streams.
                                                              (line  61)
* File exists:                           Error Codes.         (line 112)
* file fragmentation:                    Storage Allocation.  (line   6)
* File locking deadlock error:           Error Codes.         (line 706)
* file locks:                            File Locks.          (line   6)
* file modification time:                File Times.          (line   6)
* file name:                             File Names.          (line  14)
* file name component:                   Directories.         (line  15)
* file name errors:                      File Name Errors.    (line   6)
* file name resolution:                  File Name Resolution.
                                                              (line  10)
* file name resolution based on descriptors: Descriptor-Relative Access.
                                                              (line   6)
* file name resolution flags:            Descriptor-Relative Access.
                                                              (line  87)
* File name too long:                    Error Codes.         (line 420)
* file name translation flags:           Open-time Flags.     (line  14)
* file names, multiple:                  Hard Links.          (line   6)
* file owner:                            File Owner.          (line   6)
* file permission bits:                  Permission Bits.     (line  15)
* file pointer:                          Streams.             (line  12)
* file position:                         File Position.       (line  14)
* file positioning on a file descriptor: File Position Primitive.
                                                              (line  15)
* file positioning on a stream:          File Positioning.    (line   6)
* file status flags:                     File Status Flags.   (line   6)
* File too large:                        Error Codes.         (line 177)
* files, accessing:                      Memory Concepts.     (line  83)
* files, sparse:                         Storage Allocation.  (line   6)
* filtering i/o through subprocess:      Pipe to a Subprocess.
                                                              (line   6)
* flag character (printf):               Output Conversion Syntax.
                                                              (line  60)
* flag character (scanf):                Input Conversion Syntax.
                                                              (line  35)
* flags for sigaction:                   Flags for Sigaction. (line   6)
* flags, file name translation:          Open-time Flags.     (line  14)
* flags, open-time action:               Open-time Flags.     (line  17)
* floating point:                        Floating Point Numbers.
                                                              (line   6)
* floating point, IEEE:                  IEEE Floating Point. (line   6)
* floating type measurements:            Floating Type Macros.
                                                              (line   6)
* floating-point classes:                Floating Point Classes.
                                                              (line   6)
* floating-point exception:              Program Error Signals.
                                                              (line  49)
* flow control, terminal:                Line Control.        (line 108)
* flow label:                            Internet Address Formats.
                                                              (line  55)
* flushing a stream:                     Flushing Buffers.    (line   6)
* flushing terminal output queue:        Line Control.        (line  38)
* foreground job:                        Concepts of Job Control.
                                                              (line  47)
* foreground job, launching:             Foreground and Background.
                                                              (line  10)
* forking a process:                     Process Creation Concepts.
                                                              (line   9)
* format string, for printf:             Formatted Output.    (line   6)
* format string, for scanf:              Formatted Input.     (line   6)
* formatted input from a stream:         Formatted Input.     (line   6)
* formatted messages:                    Formatted Messages.  (line   6)
* formatted output to a stream:          Formatted Output.    (line   6)
* FP arithmetic:                         FP Bit Twiddling.    (line   6)
* FQDN:                                  Host Identification. (line  31)
* fragmentation of files:                Storage Allocation.  (line   6)
* frame, real memory:                    Memory Concepts.     (line  18)
* free documentation:                    Free Manuals.        (line   6)
* freeing (obstacks):                    Freeing Obstack Objects.
                                                              (line   6)
* freeing memory:                        Memory Concepts.     (line  90)
* freeing memory allocated with malloc:  Freeing after Malloc.
                                                              (line   6)
* fully buffered stream:                 Buffering Concepts.  (line  15)
* Function not implemented:              Error Codes.         (line 516)
* function prototypes (variadic):        Variadic Prototypes. (line   6)
* gamma function:                        Special Functions.   (line   6)
* gcvt_r:                                System V Number Conversion.
                                                              (line 107)
* gencat:                                The gencat program.  (line   6)
* generation of signals:                 Signal Generation.   (line   6)
* generic i/o control operations:        IOCTLs.              (line   6)
* globbing:                              Globbing.            (line   6)
* gmon tunables:                         gmon Tunables.       (line   6)
* gnu allocator:                         The GNU Allocator.   (line   6)
* graphic character:                     Classification of Characters.
                                                              (line 139)
* graphic character <1>:                 Classification of Wide Characters.
                                                              (line 150)
* Gratuitous error:                      Error Codes.         (line 580)
* Gregorian calendar:                    Time Basics.         (line  54)
* group:                                 NSS Basics.          (line  24)
* group database:                        Group Database.      (line   6)
* group ID:                              User and Group IDs.  (line  12)
* group name:                            User and Group IDs.  (line  12)
* group owner of a file:                 File Owner.          (line   6)
* grouping of digits:                    General Numeric.     (line  28)
* growing objects (in obstacks):         Growing Objects.     (line   6)
* gshadow:                               NSS Basics.          (line  24)
* handling multiple signals:             Merged Signals.      (line   6)
* hangup signal:                         Termination Signals. (line  77)
* hard limit:                            Limits on Resources. (line  24)
* hard link:                             Hard Links.          (line   6)
* hardware capability tunables:          Hardware Capability Tunables.
                                                              (line   6)
* header files:                          Header Files.        (line   6)
* heap:                                  Unsafe Features.     (line  41)
* heap consistency checking:             Heap Consistency Checking.
                                                              (line   6)
* heap, dynamic allocation from:         Unconstrained Allocation.
                                                              (line   6)
* heap, freeing memory from:             Freeing after Malloc.
                                                              (line   6)
* hexadecimal digit character:           Classification of Characters.
                                                              (line  86)
* hexadecimal digit character <1>:       Classification of Wide Characters.
                                                              (line 254)
* hidden bit (of floating point number mantissa): Floating Point Concepts.
                                                              (line  42)
* hierarchy, directory:                  Working with Directory Trees.
                                                              (line   6)
* high-priority data:                    Out-of-Band Data.    (line   6)
* holes in files:                        File Position Primitive.
                                                              (line  63)
* home directory:                        Standard Environment.
                                                              (line  12)
* HOME environment variable:             Standard Environment.
                                                              (line  12)
* hook functions (of custom streams):    Hook Functions.      (line   6)
* host address, Internet:                Abstract Host Addresses.
                                                              (line   6)
* Host is down:                          Error Codes.         (line 426)
* host name:                             Host Identification. (line  14)
* hostid:                                Other Safety Remarks.
                                                              (line  40)
* hostname:                              Host Identification. (line  19)
* hosts:                                 NSS Basics.          (line  24)
* hosts database:                        Host Names.          (line   6)
* how many arguments:                    How Many Arguments.  (line   6)
* HWCAP (diagnostics):                   Dynamic Linker Diagnostics Values.
                                                              (line  14)
* hwcap tunables:                        Hardware Capability Tunables.
                                                              (line   6)
* hwcaps tunables:                       Hardware Capability Tunables.
                                                              (line   6)
* hyperbolic functions:                  Hyperbolic Functions.
                                                              (line   6)
* hyperbolic functions <1>:              Hyperbolic Functions.
                                                              (line  48)
* i18n:                                  Unsafe Features.     (line  79)
* iconv:                                 Unsafe Features.     (line  67)
* Identifier removed:                    Error Codes.         (line 588)
* identifying terminals:                 Is It a Terminal.    (line   6)
* IEEE 754:                              Floating Point Numbers.
                                                              (line   6)
* IEEE floating point:                   Floating Point Numbers.
                                                              (line   6)
* IEEE floating point representation:    IEEE Floating Point. (line   6)
* IEEE Std 1003.1:                       POSIX.               (line   6)
* IEEE Std 1003.2:                       POSIX.               (line   6)
* ignore action for a signal:            Basic Signal Handling.
                                                              (line  44)
* illegal instruction:                   Program Error Signals.
                                                              (line 109)
* Illegal seek:                          Error Codes.         (line 187)
* impossible events:                     Consistency Checking.
                                                              (line   6)
* Inappropriate file type or format:     Error Codes.         (line 500)
* Inappropriate ioctl for device:        Error Codes.         (line 162)
* Inappropriate operation for background process: Error Codes.
                                                              (line 550)
* independent channels:                  Independent Channels.
                                                              (line   6)
* inexact exception:                     FP Exceptions.       (line   6)
* infinity:                              Infinity and NaN.    (line   6)
* init:                                  Conditionally Safe Features.
                                                              (line  16)
* initgroups:                            NSS Basics.          (line  24)
* initial signal actions:                Initial Signal Actions.
                                                              (line   6)
* inode number:                          Attribute Meanings.  (line 195)
* input available signal:                Asynchronous I/O Signals.
                                                              (line  14)
* input conversions, for scanf:          Table of Input Conversions.
                                                              (line   6)
* input from multiple files:             Waiting for I/O.     (line   6)
* Input/output error:                    Error Codes.         (line  39)
* installation tools:                    Tools for Compilation.
                                                              (line   6)
* installing:                            Running make install.
                                                              (line   6)
* integer:                               Integers.            (line   6)
* integer division functions:            Integer Division.    (line   6)
* integer type range:                    Range of Type.       (line   6)
* integer type width:                    Width of Type.       (line   6)
* interactive signals, from terminal:    Local Modes.         (line 103)
* interactive stop signal:               Job Control Signals. (line  62)
* internal representation:               Extended Char Intro. (line  12)
* internationalization:                  Locales.             (line  11)
* Internet host address:                 Abstract Host Addresses.
                                                              (line   6)
* Internet namespace, for sockets:       Internet Namespace.  (line   6)
* interposing malloc:                    Replacing malloc.    (line   6)
* interprocess communication, with FIFO: FIFO Special Files.  (line   6)
* interprocess communication, with pipes: Creating a Pipe.    (line   6)
* interprocess communication, with signals: Kill Example.     (line   6)
* interprocess communication, with sockets: Sockets.          (line   9)
* interrupt character:                   Signal Characters.   (line  12)
* interrupt signal:                      Termination Signals. (line  32)
* interrupt-driven input:                Interrupt Input.     (line   6)
* Interrupted system call:               Error Codes.         (line  29)
* Interrupted system call should be restarted: Error Codes.   (line 646)
* interrupting primitives:               Interrupted Primitives.
                                                              (line  47)
* interval:                              Time Basics.         (line  22)
* interval timer, setting:               Setting an Alarm.    (line  10)
* INTR character:                        Signal Characters.   (line  12)
* Invalid argument:                      Error Codes.         (line 139)
* Invalid cross-device link:             Error Codes.         (line 117)
* invalid exception:                     FP Exceptions.       (line   6)
* Invalid exchange:                      Error Codes.         (line 682)
* Invalid or incomplete multibyte or wide character: Error Codes.
                                                              (line 543)
* Invalid request code:                  Error Codes.         (line 698)
* Invalid request descriptor:            Error Codes.         (line 686)
* Invalid slot:                          Error Codes.         (line 702)
* inverse complex hyperbolic functions:  Hyperbolic Functions.
                                                              (line 126)
* inverse complex trigonometric functions: Inverse Trig Functions.
                                                              (line 147)
* inverse hyperbolic functions:          Hyperbolic Functions.
                                                              (line  87)
* inverse trigonometric functions:       Inverse Trig Functions.
                                                              (line   6)
* invocation of program:                 Program Arguments.   (line   6)
* IOCTLs:                                IOCTLs.              (line   6)
* ipc:                                   Inter-Process Communication.
                                                              (line   6)
* IPv6 flow label:                       Internet Address Formats.
                                                              (line  55)
* IPv6 scope ID:                         Internet Address Formats.
                                                              (line  63)
* IPv6 traffic class:                    Internet Address Formats.
                                                              (line  55)
* Is a directory:                        Error Codes.         (line 134)
* Is a named type file:                  Error Codes.         (line 782)
* ISO 10646:                             Extended Char Intro. (line  37)
* ISO 2022:                              Extended Char Intro. (line 183)
* ISO 6937:                              Extended Char Intro. (line 206)
* ISO C:                                 ISO C.               (line   6)
* ISO C threads:                         ISO C Threads.       (line   6)
* ISO-2022-JP:                           glibc iconv Implementation.
                                                              (line  53)
* ISO/IEC 9945-1:                        POSIX.               (line   6)
* ISO/IEC 9945-2:                        POSIX.               (line   6)
* job:                                   Job Control.         (line   6)
* job control:                           Job Control.         (line   6)
* job control functions:                 Functions for Job Control.
                                                              (line   6)
* job control signals:                   Job Control Signals. (line   6)
* job control, enabling:                 Initializing the Shell.
                                                              (line   6)
* job control, enabling <1>:             Initializing the Shell.
                                                              (line  24)
* Kermit the frog:                       Search/Sort Example. (line 107)
* kernel call:                           System Calls.        (line  16)
* kernel header files:                   Linux.               (line   6)
* Key has been revoked:                  Error Codes.         (line 806)
* Key has expired:                       Error Codes.         (line 802)
* Key was rejected by service:           Error Codes.         (line 810)
* KILL character:                        Editing Characters.  (line  91)
* kill signal:                           Termination Signals. (line  74)
* killing a process:                     Signaling Another Process.
                                                              (line   6)
* Korn Shell:                            Wildcard Matching.   (line  82)
* LANG environment variable:             The catgets Functions.
                                                              (line 101)
* LANG environment variable <1>:         Standard Environment.
                                                              (line  72)
* launching jobs:                        Launching Jobs.      (line   6)
* LC_ALL environment variable:           The catgets Functions.
                                                              (line 101)
* LC_ALL environment variable <1>:       Standard Environment.
                                                              (line  79)
* LC_COLLATE environment variable:       Standard Environment.
                                                              (line  86)
* LC_CTYPE environment variable:         Standard Environment.
                                                              (line  90)
* LC_MESSAGES environment variable:      The catgets Functions.
                                                              (line 101)
* LC_MESSAGES environment variable <1>:  Standard Environment.
                                                              (line  95)
* LC_MONETARY environment variable:      Standard Environment.
                                                              (line 100)
* LC_NUMERIC environment variable:       Standard Environment.
                                                              (line 104)
* LC_TIME environment variable:          Standard Environment.
                                                              (line 108)
* LD_DEBUG environment variable:         Dynamic Linker Environment Variables.
                                                              (line  10)
* LD_DEBUG_OUTPUT environment variable:  Dynamic Linker Environment Variables.
                                                              (line  60)
* LD_PRELOAD and malloc:                 Replacing malloc.    (line   6)
* leap second:                           Broken-down Time.    (line  29)
* leap seconds:                          Time Basics.         (line  47)
* length of string:                      Representation of Strings.
                                                              (line  61)
* Level 2 halted:                        Error Codes.         (line 678)
* Level 2 not synchronized:              Error Codes.         (line 654)
* Level 3 halted:                        Error Codes.         (line 658)
* Level 3 reset:                         Error Codes.         (line 662)
* level, for socket options:             Socket Options.      (line   9)
* library:                               Introduction.        (line   9)
* limit:                                 Limits on Resources. (line  12)
* limits on resource usage:              Limits on Resources. (line   6)
* limits, file name length:              Limits for Files.    (line  39)
* limits, floating types:                Floating Type Macros.
                                                              (line   6)
* limits, integer types:                 Range of Type.       (line   6)
* limits, link count of files:           Limits for Files.    (line  24)
* limits, number of open files:          General Limits.      (line  36)
* limits, number of processes:           General Limits.      (line  29)
* limits, number of supplementary group IDs: General Limits.  (line  55)
* limits, pipe buffer size:              Limits for Files.    (line  56)
* limits, POSIX:                         General Limits.      (line   6)
* limits, program argument size:         General Limits.      (line  24)
* limits, terminal input queue:          Limits for Files.    (line  29)
* limits, time zone abbreviation length: General Limits.      (line  48)
* line buffered stream:                  Buffering Concepts.  (line  12)
* line speed:                            Line Speed.          (line   6)
* lines (in a text file):                Binary Streams.      (line  25)
* link:                                  Directories.         (line   9)
* Link has been severed:                 Error Codes.         (line 600)
* link map:                              Dynamic Linker Introspection.
                                                              (line  11)
* Link number out of range:              Error Codes.         (line 666)
* link, hard:                            Hard Links.          (line   6)
* link, soft:                            Symbolic Links.      (line   6)
* link, symbolic:                        Symbolic Links.      (line   6)
* linked channels:                       Linked Channels.     (line   6)
* listening (sockets):                   Listening.           (line   6)
* literals:                              Memory Concepts.     (line  67)
* little-endian:                         Byte Order.          (line   6)
* LNEXT character:                       Other Special.       (line   8)
* load address:                          Dynamic Linker Introspection.
                                                              (line  21)
* load average:                          Processor Resources. (line  48)
* local namespace, for sockets:          Local Namespace.     (line   6)
* local network address number:          Abstract Host Addresses.
                                                              (line   9)
* local time:                            Time Basics.         (line  54)
* locale:                                Other Safety Remarks.
                                                              (line  10)
* locale categories:                     Locale Categories.   (line   6)
* locale, changing:                      Setting the Locale.  (line  18)
* locales:                               Locales.             (line  11)
* lock:                                  Unsafe Features.     (line  13)
* locking pages:                         Locking Pages.       (line   6)
* logarithm functions:                   Exponents and Logarithms.
                                                              (line   6)
* login name:                            User and Group IDs.  (line   6)
* login name, determining:               Who Logged In.       (line   6)
* LOGNAME environment variable:          Standard Environment.
                                                              (line  25)
* long jumps:                            Non-Local Exits.     (line   6)
* long-named options:                    Argument Syntax.     (line  50)
* longjmp:                               Advantages of Alloca.
                                                              (line  15)
* loss of data on sockets:               Socket Concepts.     (line  17)
* lost resource signal:                  Operation Error Signals.
                                                              (line  29)
* lower-case character:                  Classification of Characters.
                                                              (line  40)
* lower-case character <1>:              Classification of Wide Characters.
                                                              (line 165)
* Machine is not on the network:         Error Codes.         (line 714)
* macros:                                Obstack Functions.   (line   6)
* main function:                         Program Arguments.   (line   6)
* malloc debugger:                       Allocation Debugging.
                                                              (line   6)
* malloc function:                       Unconstrained Allocation.
                                                              (line   6)
* malloc replacement:                    Replacing malloc.    (line   6)
* malloc tunables:                       Memory Allocation Tunables.
                                                              (line   6)
* mantissa (of floating point number):   Floating Point Concepts.
                                                              (line  35)
* matching failure, in scanf:            Formatted Input Basics.
                                                              (line  32)
* math errors:                           Errors in Math Functions.
                                                              (line   6)
* mathematical constants:                Mathematical Constants.
                                                              (line   6)
* maximum:                               Misc FP Arithmetic.  (line   6)
* maximum field width (scanf):           Input Conversion Syntax.
                                                              (line  50)
* maximum limit:                         Limits on Resources. (line  24)
* maximum possible integer:              Integers.            (line  82)
* measurements of floating types:        Floating Type Macros.
                                                              (line   6)
* mem:                                   Other Safety Remarks.
                                                              (line 103)
* memory allocation:                     Memory.              (line   6)
* memory allocation tunables:            Memory Allocation Tunables.
                                                              (line   6)
* memory lock:                           Locking Pages.       (line   6)
* memory mapped file:                    Memory Concepts.     (line  83)
* memory mapped I/O:                     Memory Concepts.     (line  83)
* memory page:                           Memory Subsystem.    (line  33)
* Memory page has hardware error:        Error Codes.         (line 818)
* memory protection:                     Memory Protection.   (line   6)
* memory protection key:                 Memory Protection.   (line 185)
* memory related tunables:               Memory Related Tunables.
                                                              (line   6)
* memset_non_temporal_threshold tunables: Hardware Capability Tunables.
                                                              (line   6)
* merging of signals:                    Merged Signals.      (line   6)
* Message too long:                      Error Codes.         (line 283)
* MIN termios slot:                      Noncanonical Input.  (line  26)
* minimum:                               Misc FP Arithmetic.  (line   6)
* minimum field width (printf):          Output Conversion Syntax.
                                                              (line  67)
* minimum possible integer:              Integers.            (line  82)
* mixing descriptors and streams:        Stream/Descriptor Precautions.
                                                              (line   6)
* modem disconnect:                      Terminal Device Model.
                                                              (line  60)
* modem disconnect <1>:                  Control Modes.       (line  34)
* modem disconnect request:              Terminal Device Model.
                                                              (line  38)
* modem disconnect request <1>:          Control Modes.       (line  40)
* modem status lines:                    Control Modes.       (line  22)
* monetary value formatting:             The Lame Way to Locale Data.
                                                              (line  13)
* monotonic time:                        Getting the Time.    (line  53)
* MPK:                                   Memory Protection.   (line 185)
* MT-Safe:                               POSIX Safety Concepts.
                                                              (line  16)
* MT-Unsafe:                             POSIX Safety Concepts.
                                                              (line  68)
* multi-threaded application:            Streams and Threads. (line   6)
* multibyte character:                   Representation of Strings.
                                                              (line  22)
* multibyte character <1>:               Extended Char Intro. (line 160)
* multibyte string:                      Representation of Strings.
                                                              (line  22)
* multibyte string <1>:                  Representation of Strings.
                                                              (line  71)
* Multihop attempted:                    Error Codes.         (line 592)
* multiple names for one file:           Hard Links.          (line   6)
* multiplexing input:                    Waiting for I/O.     (line   6)
* multiply-add:                          Misc FP Arithmetic.  (line   6)
* mutex:                                 ISO C Mutexes.       (line   6)
* mutex tunables:                        POSIX Thread Tunables.
                                                              (line   6)
* mutual exclusion:                      ISO C Mutexes.       (line   6)
* Name not unique on network:            Error Codes.         (line 738)
* name of running program:               Error Messages.      (line 174)
* name of socket:                        Socket Addresses.    (line   6)
* Name Service Switch:                   Name Service Switch. (line   6)
* name space:                            Reserved Names.      (line   6)
* names of signals:                      Standard Signals.    (line   6)
* namespace (of socket):                 Socket Concepts.     (line  33)
* NaN:                                   Infinity and NaN.    (line   6)
* NaN <1>:                               FP Bit Twiddling.    (line 110)
* Need authenticator:                    Error Codes.         (line 512)
* netgroup:                              NSS Basics.          (line  24)
* Netgroup:                              Netgroup Data.       (line   6)
* network byte order:                    Byte Order.          (line  11)
* Network dropped connection on reset:   Error Codes.         (line 351)
* Network is down:                       Error Codes.         (line 341)
* Network is unreachable:                Error Codes.         (line 346)
* network number:                        Abstract Host Addresses.
                                                              (line   9)
* network protocol:                      Socket Concepts.     (line  42)
* networks:                              NSS Basics.          (line  24)
* networks database:                     Networks Database.   (line   6)
* NIS:                                   Host Identification. (line  37)
* NIS domain name:                       Host Identification. (line  37)
* NIS domain name <1>:                   Host Identification. (line 110)
* NIS domain name <2>:                   Host Identification. (line 122)
* nisplus, and booting:                  Actions in the NSS configuration.
                                                              (line 112)
* nisplus, and completeness:             Actions in the NSS configuration.
                                                              (line 105)
* NLSPATH environment variable:          The catgets Functions.
                                                              (line  33)
* NLSPATH environment variable <1>:      Standard Environment.
                                                              (line 112)
* No anode:                              Error Codes.         (line 694)
* No buffer space available:             Error Codes.         (line 367)
* No child processes:                    Error Codes.         (line  71)
* No CSI structure available:            Error Codes.         (line 674)
* No data available:                     Error Codes.         (line 596)
* No locks available:                    Error Codes.         (line 493)
* No medium found:                       Error Codes.         (line 790)
* No message of desired type:            Error Codes.         (line 604)
* No route to host:                      Error Codes.         (line 431)
* No space left on device:               Error Codes.         (line 182)
* No such device:                        Error Codes.         (line 124)
* No such device or address:             Error Codes.         (line  44)
* No such file or directory:             Error Codes.         (line  19)
* No such process:                       Error Codes.         (line  25)
* No XENIX semaphores available:         Error Codes.         (line 778)
* non_temporal_threshold tunables:       Hardware Capability Tunables.
                                                              (line   6)
* non-blocking open:                     Open-time Flags.     (line  72)
* non-local exit, from signal handler:   Longjmp in Handler.  (line   6)
* non-local exits:                       Non-Local Exits.     (line   6)
* noncanonical input processing:         Canonical or Not.    (line  26)
* normalization functions (floating-point): Normalization Functions.
                                                              (line   6)
* normalized floating point number:      Floating Point Concepts.
                                                              (line  58)
* Not a directory:                       Error Codes.         (line 129)
* not a number:                          Infinity and NaN.    (line   6)
* Not a XENIX named type file:           Error Codes.         (line 774)
* Not supported:                         Error Codes.         (line 528)
* NSS:                                   Unsafe Features.     (line  66)
* NSS <1>:                               Name Service Switch. (line   6)
* nsswitch.conf:                         NSS Configuration File.
                                                              (line   6)
* null byte:                             Representation of Strings.
                                                              (line  31)
* null pointer constant:                 Null Pointer Constant.
                                                              (line   6)
* null wide character:                   Representation of Strings.
                                                              (line  31)
* number of arguments passed:            How Many Arguments.  (line   6)
* number syntax, parsing:                Parsing of Numbers.  (line   6)
* numeric value formatting:              The Lame Way to Locale Data.
                                                              (line  13)
* Numerical argument out of domain:      Error Codes.         (line 210)
* Numerical result out of range:         Error Codes.         (line 216)
* Object is remote:                      Error Codes.         (line 465)
* obstack status:                        Status of an Obstack.
                                                              (line   6)
* obstacks:                              Obstacks.            (line   6)
* open-time action flags:                Open-time Flags.     (line  17)
* opening a file:                        I/O Concepts.        (line   9)
* opening a file descriptor:             Opening and Closing Files.
                                                              (line   6)
* opening a pipe:                        Creating a Pipe.     (line   6)
* opening a pseudo-terminal pair:        Pseudo-Terminal Pairs.
                                                              (line   6)
* opening a socket:                      Creating a Socket.   (line   6)
* opening a socket pair:                 Socket Pairs.        (line   6)
* opening a stream:                      Opening Streams.     (line   6)
* Operation already in progress:         Error Codes.         (line 273)
* Operation canceled:                    Error Codes.         (line 628)
* Operation not permitted:               Error Codes.         (line  13)
* Operation not possible due to RF-kill: Error Codes.         (line 814)
* Operation not supported:               Error Codes.         (line 309)
* Operation now in progress:             Error Codes.         (line 261)
* Operation would block:                 Error Codes.         (line 252)
* Optimization:                          FP Function Optimizations.
                                                              (line   6)
* optimizing NSS:                        Notes on NSS Configuration File.
                                                              (line  24)
* option parsing with argp:              Argp.                (line   6)
* optional arguments:                    Variadic Functions.  (line   6)
* optional POSIX features:               System Options.      (line   6)
* orientation, stream:                   Opening Streams.     (line 101)
* orientation, stream <1>:               Streams and I18N.    (line  37)
* orphaned process group:                Orphaned Process Groups.
                                                              (line   6)
* Other Safety Remarks:                  Other Safety Remarks.
                                                              (line   6)
* Out of streams resources:              Error Codes.         (line 608)
* out-of-band data:                      Out-of-Band Data.    (line   6)
* output conversions, for printf:        Table of Output Conversions.
                                                              (line   6)
* output possible signal:                Asynchronous I/O Signals.
                                                              (line  14)
* overflow exception:                    FP Exceptions.       (line   6)
* Owner died:                            Error Codes.         (line 635)
* owner of a file:                       File Owner.          (line   6)
* Package not installed:                 Error Codes.         (line 718)
* packet:                                Socket Concepts.     (line  12)
* page boundary:                         Aligned Memory Blocks.
                                                              (line   6)
* page fault:                            Memory Concepts.     (line  45)
* page fault, copy-on-write:             Locked Memory Details.
                                                              (line  40)
* page frame:                            Memory Concepts.     (line  18)
* page protection:                       Memory Protection.   (line   6)
* page size (diagnostics):               Dynamic Linker Diagnostics Values.
                                                              (line  19)
* page, memory:                          Memory Subsystem.    (line  33)
* page, virtual memory:                  Memory Concepts.     (line  18)
* paging:                                Memory Concepts.     (line  45)
* paging <1>:                            Locking Pages.       (line   6)
* parameter promotion:                   String/Array Conventions.
                                                              (line  41)
* parent directory:                      File Name Resolution.
                                                              (line  28)
* parent process:                        Processes.           (line  13)
* parent process <1>:                    Process Creation Concepts.
                                                              (line   9)
* parity checking:                       Input Modes.         (line  18)
* parsing a template string:             Parsing a Template String.
                                                              (line   6)
* parsing numbers (in formatted input):  Parsing of Numbers.  (line   6)
* parsing program arguments:             Parsing Program Arguments.
                                                              (line   6)
* parsing tokens from a string:          Finding Tokens in a String.
                                                              (line   6)
* passwd:                                NSS Basics.          (line  24)
* password database:                     User Database.       (line   6)
* PATH environment variable:             Standard Environment.
                                                              (line  35)
* pause function:                        Waiting for a Signal.
                                                              (line   6)
* peeking at input:                      Unreading.           (line   6)
* pending signals:                       Delivery of Signal.  (line   6)
* pending signals, checking for:         Checking for Pending Signals.
                                                              (line   6)
* period of time:                        Time Basics.         (line  35)
* Permission denied:                     Error Codes.         (line  90)
* permission to access a file:           Access Permission.   (line   6)
* persona:                               Process Persona.     (line   6)
* physical address:                      Memory Subsystem.    (line   6)
* physical memory:                       Memory Subsystem.    (line   6)
* pi (trigonometric constant):           Trig Functions.      (line  10)
* pipe:                                  Pipes and FIFOs.     (line   6)
* pipe signal:                           Operation Error Signals.
                                                              (line  14)
* pipe to a subprocess:                  Pipe to a Subprocess.
                                                              (line   6)
* plugin:                                Unsafe Features.     (line  61)
* port number:                           Ports.               (line   6)
* positioning a file descriptor:         File Position Primitive.
                                                              (line  15)
* positioning a stream:                  File Positioning.    (line   6)
* positive difference:                   Misc FP Arithmetic.  (line   6)
* POSIX:                                 POSIX.               (line   6)
* POSIX capacity limits:                 General Limits.      (line   6)
* POSIX optional features:               System Options.      (line   6)
* POSIX Safety Concepts:                 POSIX Safety Concepts.
                                                              (line   6)
* POSIX.1:                               POSIX.               (line   6)
* POSIX.2:                               POSIX.               (line   6)
* power event signal:                    Miscellaneous Signals.
                                                              (line  49)
* power functions:                       Exponents and Logarithms.
                                                              (line   6)
* precision (of floating point number):  Floating Point Concepts.
                                                              (line  38)
* precision (printf):                    Output Conversion Syntax.
                                                              (line  78)
* predicates on arrays:                  String/Array Comparison.
                                                              (line   6)
* predicates on characters:              Classification of Characters.
                                                              (line   6)
* predicates on strings:                 String/Array Comparison.
                                                              (line   6)
* preempting malloc:                     Replacing malloc.    (line   6)
* preemptive scheduling:                 Absolute Priority.   (line  17)
* Preliminary:                           POSIX Safety Concepts.
                                                              (line  75)
* primitives, interrupting:              Interrupted Primitives.
                                                              (line  47)
* printing character:                    Classification of Characters.
                                                              (line 148)
* printing character <1>:                Classification of Wide Characters.
                                                              (line 179)
* priority of a process:                 Priority.            (line   6)
* priority, absolute:                    Absolute Priority.   (line   6)
* process:                               Program Basics.      (line   6)
* process <1>:                           Processes.           (line   6)
* process completion:                    Process Completion.  (line   6)
* process group functions:               Functions for Job Control.
                                                              (line   6)
* process group ID:                      Launching Jobs.      (line  23)
* process group leader:                  Launching Jobs.      (line  23)
* process groups:                        Job Control.         (line   6)
* process ID:                            Process Identification.
                                                              (line   6)
* process image:                         Process Creation Concepts.
                                                              (line  30)
* process priority:                      Priority.            (line   6)
* process signal mask:                   Process Signal Mask. (line   6)
* process termination:                   Program Termination. (line   6)
* processor time:                        Time Basics.         (line  77)
* processor time <1>:                    Processor Time.      (line   9)
* profiling alarm signal:                Alarm Signals.       (line  33)
* profiling timer:                       Setting an Alarm.    (line  22)
* program:                               Program Basics.      (line   6)
* program argument syntax:               Argument Syntax.     (line   6)
* program arguments:                     Program Arguments.   (line   6)
* program arguments, parsing:            Parsing Program Arguments.
                                                              (line   6)
* program error signals:                 Program Error Signals.
                                                              (line   6)
* program interpreter:                   Dynamic Linker Invocation.
                                                              (line   6)
* program name:                          Error Messages.      (line 174)
* program startup:                       Program Arguments.   (line   6)
* program termination:                   Program Termination. (line   6)
* program termination signals:           Termination Signals. (line   6)
* programming your own streams:          Custom Streams.      (line   6)
* project complex numbers:               Operations on Complex.
                                                              (line   6)
* protection flags:                      Memory Protection.   (line   6)
* protection key:                        Memory Protection.   (line 185)
* protocol (of socket):                  Socket Concepts.     (line  42)
* Protocol driver not attached:          Error Codes.         (line 670)
* Protocol error:                        Error Codes.         (line 620)
* protocol family:                       Socket Concepts.     (line  42)
* Protocol family not supported:         Error Codes.         (line 319)
* Protocol not available:                Error Codes.         (line 293)
* Protocol not supported:                Error Codes.         (line 299)
* Protocol wrong type for socket:        Error Codes.         (line 288)
* protocols:                             NSS Basics.          (line  24)
* protocols database:                    Protocols Database.  (line   6)
* prototypes for variadic functions:     Variadic Prototypes. (line   6)
* pseudo-random numbers:                 Pseudo-Random Numbers.
                                                              (line   6)
* pseudo-random numbers, cryptographic:  Unpredictable Bytes. (line   6)
* pseudo-terminals:                      Pseudo-Terminals.    (line   6)
* pthread mutex tunables:                POSIX Thread Tunables.
                                                              (line   6)
* pthreads:                              POSIX Threads.       (line   6)
* publickey:                             NSS Basics.          (line  24)
* punctuation character:                 Classification of Characters.
                                                              (line  95)
* punctuation character <1>:             Classification of Wide Characters.
                                                              (line 193)
* pushing input back:                    Unreading.           (line   6)
* quick sort function (for arrays):      Array Sort Function. (line   6)
* QUIT character:                        Signal Characters.   (line  24)
* quit signal:                           Termination Signals. (line  39)
* quit signal <1>:                       Termination Signals. (line  39)
* quote removal:                         Expansion Stages.    (line  32)
* race:                                  Conditionally Safe Features.
                                                              (line  46)
* race conditions, relating to job control: Launching Jobs.   (line  28)
* race conditions, relating to signals:  Signals in Handler.  (line   6)
* radix (of floating point number):      Floating Point Concepts.
                                                              (line  20)
* raising signals:                       Generating Signals.  (line   6)
* random numbers:                        Pseudo-Random Numbers.
                                                              (line   6)
* random numbers, cryptographic:         Unpredictable Bytes. (line   6)
* random-access files:                   File Position.       (line  22)
* randomness source:                     Unpredictable Bytes. (line   6)
* range error:                           Math Error Reporting.
                                                              (line   6)
* range of integer type:                 Range of Type.       (line   6)
* read lock:                             File Locks.          (line  19)
* Read-only file system:                 Error Codes.         (line 191)
* reading from a directory:              Accessing Directories.
                                                              (line   6)
* reading from a file descriptor:        I/O Primitives.      (line  16)
* reading from a socket:                 Transferring Data.   (line   6)
* reading from a stream, by blocks:      Block Input/Output.  (line   9)
* reading from a stream, by characters:  Character Input.     (line   6)
* reading from a stream, formatted:      Formatted Input.     (line   6)
* ready to run:                          Absolute Priority.   (line  17)
* real group ID:                         Process Persona.     (line  17)
* real user ID:                          Process Persona.     (line  17)
* real-time timer:                       Setting an Alarm.    (line  13)
* realtime CPU scheduling:               Absolute Priority.   (line   9)
* realtime processing:                   Why Lock Pages.      (line  14)
* realtime scheduling:                   Realtime Scheduling. (line   6)
* receiving datagrams:                   Receiving Datagrams. (line   6)
* record locking:                        File Locks.          (line   6)
* redirecting input and output:          Duplicating Descriptors.
                                                              (line   6)
* reentrant functions:                   Nonreentrancy.       (line  26)
* reentrant NSS functions:               NSS Module Names.    (line  21)
* relative file name:                    File Name Resolution.
                                                              (line  24)
* Remote address changed:                Error Codes.         (line 746)
* Remote I/O error:                      Error Codes.         (line 786)
* removal of quotes:                     Expansion Stages.    (line  32)
* removing a file:                       Deleting Files.      (line   6)
* removing macros that shadow functions: Macro Definitions.   (line   6)
* renaming a file:                       Renaming Files.      (line   8)
* replacing malloc:                      Replacing malloc.    (line   6)
* reporting bugs:                        Reporting Bugs.      (line   6)
* reporting errors:                      Error Reporting.     (line   6)
* REPRINT character:                     Editing Characters.  (line 103)
* Required key not available:            Error Codes.         (line 798)
* reserved names:                        Reserved Names.      (line   6)
* Resource deadlock avoided:             Error Codes.         (line  77)
* resource limits:                       Limits on Resources. (line   6)
* Resource temporarily unavailable:      Error Codes.         (line 222)
* restarting interrupted primitives:     Interrupted Primitives.
                                                              (line  47)
* restrictions on signal handler functions: Nonreentrancy.    (line   6)
* RFS specific error:                    Error Codes.         (line 734)
* root directory:                        File Name Resolution.
                                                              (line  19)
* Rot13:                                 Obfuscating Data.    (line   6)
* rpc:                                   NSS Basics.          (line  24)
* RPC bad procedure for program:         Error Codes.         (line 489)
* RPC program not available:             Error Codes.         (line 481)
* RPC program version wrong:             Error Codes.         (line 485)
* RPC struct is bad:                     Error Codes.         (line 473)
* RPC version wrong:                     Error Codes.         (line 477)
* rtld tunables:                         Dynamic Linking Tunables.
                                                              (line   6)
* runnable process:                      Absolute Priority.   (line  25)
* running a command:                     Running a Command.   (line   6)
* saved set-group-ID:                    How Change Persona.  (line   6)
* saved set-user-ID:                     How Change Persona.  (line   6)
* scanning the group list:               Scanning All Groups. (line   6)
* scanning the user list:                Scanning All Users.  (line   6)
* scatter-gather:                        Scatter-Gather.      (line   6)
* scheduling, extensible:                Extensible Scheduling.
                                                              (line   6)
* scheduling, traditional:               Traditional Scheduling.
                                                              (line   6)
* scope ID:                              Internet Address Formats.
                                                              (line  63)
* search function (for arrays):          Array Search Function.
                                                              (line   6)
* search functions (for strings):        Search Functions.    (line   8)
* seconds, leap:                         Time Basics.         (line  47)
* seed (for random numbers):             Pseudo-Random Numbers.
                                                              (line   6)
* seeking on a file descriptor:          File Position Primitive.
                                                              (line  15)
* seeking on a stream:                   File Positioning.    (line   6)
* segmentation violation:                Program Error Signals.
                                                              (line 112)
* sending a datagram:                    Sending Datagrams.   (line   6)
* sending signals:                       Generating Signals.  (line   6)
* sequential-access files:               File Position.       (line  14)
* server:                                Connections.         (line   6)
* services:                              NSS Basics.          (line  24)
* services database:                     Services Database.   (line   6)
* session:                               Job Control.         (line   6)
* session <1>:                           Concepts of Job Control.
                                                              (line  24)
* session leader:                        Concepts of Job Control.
                                                              (line  32)
* setting an alarm:                      Setting an Alarm.    (line  10)
* setuid programs:                       How Change Persona.  (line   6)
* setuid programs and file access:       Testing File Access. (line   6)
* severity class:                        Printing Formatted Messages.
                                                              (line  86)
* severity class <1>:                    Adding Severity Classes.
                                                              (line   6)
* sgettext:                              GUI program problems.
                                                              (line  57)
* sgettext <1>:                          GUI program problems.
                                                              (line  82)
* shadow:                                NSS Basics.          (line  24)
* shadowing functions with macros:       Macro Definitions.   (line   6)
* shared lock:                           File Locks.          (line  19)
* shared memory:                         Memory Subsystem.    (line  13)
* shared_cache_size tunables:            Hardware Capability Tunables.
                                                              (line   6)
* shell:                                 Concepts of Job Control.
                                                              (line   6)
* shift state:                           Keeping the state.   (line  16)
* Shift_JIS:                             Extended Char Intro. (line 192)
* shrinking objects:                     Growing Objects.     (line 121)
* shutting down a socket:                Closing a Socket.    (line   6)
* sig:                                   Conditionally Safe Features.
                                                              (line 155)
* sigaction flags:                       Flags for Sigaction. (line   6)
* sigaction function:                    Advanced Signal Handling.
                                                              (line   6)
* SIGCHLD, handling of:                  Stopped and Terminated Jobs.
                                                              (line  18)
* sigintr:                               Other Safety Remarks.
                                                              (line  53)
* sign (of floating point number):       Floating Point Concepts.
                                                              (line  18)
* signal:                                FP Exceptions.       (line   6)
* signal <1>:                            Signal Handling.     (line   6)
* signal action:                         Delivery of Signal.  (line  13)
* signal actions:                        Signal Actions.      (line   6)
* signal flags:                          Flags for Sigaction. (line   6)
* signal function:                       Basic Signal Handling.
                                                              (line   6)
* signal handler function:               Defining Handlers.   (line   6)
* signal mask:                           Process Signal Mask. (line   6)
* signal messages:                       Signal Messages.     (line   6)
* signal names:                          Standard Signals.    (line   6)
* signal number:                         Standard Signals.    (line   6)
* signal set:                            Signal Sets.         (line   9)
* signals, generating:                   Generating Signals.  (line   6)
* signedness:                            Integers.            (line   9)
* significand (of floating point number): Floating Point Concepts.
                                                              (line  35)
* SIGTTIN, from background job:          Access to the Terminal.
                                                              (line  11)
* SIGTTOU, from background job:          Access to the Terminal.
                                                              (line  18)
* simple calendar time:                  Time Basics.         (line  47)
* simple time:                           Time Basics.         (line  47)
* single-byte string:                    Representation of Strings.
                                                              (line  71)
* single-call functions:                 Call Once.           (line   6)
* size of string:                        Representation of Strings.
                                                              (line  61)
* SJIS:                                  Extended Char Intro. (line 192)
* socket:                                Sockets.             (line   9)
* socket address (name) binding:         Socket Addresses.    (line   6)
* socket domain:                         Socket Concepts.     (line  33)
* socket namespace:                      Socket Concepts.     (line  33)
* Socket operation on non-socket:        Error Codes.         (line 278)
* socket option level:                   Socket Options.      (line   9)
* socket options:                        Socket Options.      (line   6)
* socket pair:                           Socket Pairs.        (line   6)
* socket protocol:                       Socket Concepts.     (line  42)
* socket shutdown:                       Closing a Socket.    (line   6)
* Socket type not supported:             Error Codes.         (line 305)
* socket, client actions:                Connecting.          (line   6)
* socket, closing:                       Closing a Socket.    (line   6)
* socket, connecting:                    Connecting.          (line   6)
* socket, creating:                      Creating a Socket.   (line   6)
* socket, initiating a connection:       Connecting.          (line   6)
* sockets, accepting connections:        Accepting Connections.
                                                              (line   6)
* sockets, listening:                    Listening.           (line   6)
* sockets, server actions:               Listening.           (line   6)
* soft limit:                            Limits on Resources. (line  17)
* soft link:                             Symbolic Links.      (line   6)
* Software caused connection abort:      Error Codes.         (line 356)
* sort function (for arrays):            Array Sort Function. (line   6)
* sparse files:                          File Position Primitive.
                                                              (line  63)
* sparse files <1>:                      Storage Allocation.  (line   6)
* special files:                         Making Special Files.
                                                              (line   6)
* special functions:                     Special Functions.   (line   6)
* specified action (for a signal):       Delivery of Signal.  (line  13)
* speed of execution:                    Why Lock Pages.      (line  14)
* square root function:                  Exponents and Logarithms.
                                                              (line 245)
* Srmount error:                         Error Codes.         (line 726)
* stable sorting:                        Array Sort Function. (line  31)
* Stale file handle:                     Error Codes.         (line 457)
* standard dot notation, for Internet addresses: Abstract Host Addresses.
                                                              (line  47)
* standard environment variables:        Standard Environment.
                                                              (line   6)
* standard error file descriptor:        Descriptors and Streams.
                                                              (line  79)
* standard error stream:                 Standard Streams.    (line  27)
* standard file descriptors:             Descriptors and Streams.
                                                              (line  61)
* standard input file descriptor:        Descriptors and Streams.
                                                              (line  68)
* standard input stream:                 Standard Streams.    (line  17)
* standard output file descriptor:       Descriptors and Streams.
                                                              (line  73)
* standard output stream:                Standard Streams.    (line  22)
* standard streams:                      Standard Streams.    (line   6)
* standards:                             Standards and Portability.
                                                              (line   6)
* START character:                       Start/Stop Characters.
                                                              (line  12)
* startup of program:                    Program Arguments.   (line   6)
* State not recoverable:                 Error Codes.         (line 639)
* stateful:                              Keeping the state.   (line   6)
* stateful <1>:                          Converting a Character.
                                                              (line  94)
* stateful <2>:                          Converting Strings.  (line  74)
* stateful <3>:                          Generic Conversion Interface.
                                                              (line 120)
* stateful <4>:                          iconv Examples.      (line  96)
* stateful <5>:                          glibc iconv Implementation.
                                                              (line 595)
* static memory allocation:              Memory Allocation and C.
                                                              (line  13)
* static storage class:                  Memory Allocation and C.
                                                              (line  13)
* STATUS character:                      Other Special.       (line  41)
* status codes:                          Error Reporting.     (line   6)
* status of a file:                      Attribute Meanings.  (line   6)
* status of obstack:                     Status of an Obstack.
                                                              (line   6)
* sticky bit:                            Permission Bits.     (line  85)
* STOP character:                        Start/Stop Characters.
                                                              (line  30)
* stop signal:                           Job Control Signals. (line  48)
* stopped job:                           Concepts of Job Control.
                                                              (line  53)
* stopped jobs, continuing:              Continuing Stopped Jobs.
                                                              (line   6)
* stopped jobs, detecting:               Stopped and Terminated Jobs.
                                                              (line   6)
* storage allocating:                    Storage Allocation.  (line   6)
* storage allocation:                    Memory.              (line   6)
* stream (sockets):                      Socket Concepts.     (line  12)
* stream orientation:                    Opening Streams.     (line 101)
* stream orientation <1>:                Streams and I18N.    (line  37)
* stream, for I/O to a string:           String Streams.      (line   6)
* streams and descriptors:               Stream/Descriptor Precautions.
                                                              (line   6)
* Streams pipe error:                    Error Codes.         (line 766)
* streams, and file descriptors:         Descriptors and Streams.
                                                              (line   6)
* streams, C++:                          Streams and I18N.    (line  30)
* streams, standard:                     Standard Streams.    (line   6)
* string:                                Representation of Strings.
                                                              (line  11)
* string allocation:                     Representation of Strings.
                                                              (line  61)
* string collation functions:            Collation Functions. (line   6)
* string comparison functions:           String/Array Comparison.
                                                              (line   6)
* string concatenation functions:        Copying Strings and Arrays.
                                                              (line   9)
* string concatenation functions <1>:    Concatenating Strings.
                                                              (line   6)
* string copy functions:                 Copying Strings and Arrays.
                                                              (line   9)
* string length:                         Representation of Strings.
                                                              (line  61)
* string literal:                        Representation of Strings.
                                                              (line  40)
* string search functions:               Search Functions.    (line   8)
* string stream:                         String Streams.      (line   6)
* string truncation:                     Truncating Strings.  (line   6)
* string vectors, null-byte separated:   Argz and Envz Vectors.
                                                              (line   6)
* string, representation of:             Representation of Strings.
                                                              (line   6)
* Structure needs cleaning:              Error Codes.         (line 770)
* style of communication (of a socket):  Socket Concepts.     (line   6)
* subprocess:                            Process Creation Concepts.
                                                              (line   9)
* subshell:                              Initializing the Shell.
                                                              (line   6)
* substitution of variables and commands: Expansion Stages.   (line  15)
* successive signals:                    Merged Signals.      (line   6)
* summer time:                           Broken-down Time.    (line  63)
* SunOS:                                 Berkeley Unix.       (line   6)
* supplementary group IDs:               Process Persona.     (line   6)
* SUSP character:                        Signal Characters.   (line  36)
* suspend character:                     Signal Characters.   (line  36)
* SVID:                                  SVID.                (line   6)
* swap space:                            Memory Concepts.     (line  18)
* symbolic link:                         Symbolic Links.      (line   6)
* symbolic link, opening:                Open-time Flags.     (line 113)
* synchronizing:                         Synchronizing I/O.   (line   6)
* synchronizing <1>:                     Synchronizing AIO Operations.
                                                              (line  17)
* syntax error messages, in argp:        Argp Helper Functions.
                                                              (line  21)
* syntax, for program arguments:         Argument Syntax.     (line   6)
* syntax, for reading numbers:           Parsing of Numbers.  (line   6)
* sysconf:                               Query Memory Parameters.
                                                              (line  47)
* sysconf <1>:                           Query Memory Parameters.
                                                              (line  53)
* sysconf <2>:                           Processor Resources. (line  13)
* sysconf <3>:                           Processor Resources. (line  19)
* system call:                           System Calls.        (line   6)
* system call number:                    System Calls.        (line  72)
* System V Unix:                         SVID.                (line   6)
* task ID:                               Process Identification.
                                                              (line  19)
* TCP (Internet protocol):               Protocols Database.  (line  12)
* template, for printf:                  Formatted Output.    (line   6)
* template, for scanf:                   Formatted Input.     (line   6)
* term:                                  Conditionally Safe Features.
                                                              (line 178)
* TERM environment variable:             Standard Environment.
                                                              (line  59)
* terminal flow control:                 Line Control.        (line 108)
* terminal identification:               Is It a Terminal.    (line   6)
* terminal input queue:                  I/O Queues.          (line  11)
* terminal input queue, clearing:        Line Control.        (line  67)
* terminal input signal:                 Job Control Signals. (line  71)
* terminal line control functions:       Line Control.        (line   6)
* terminal line speed:                   Line Speed.          (line   6)
* terminal line speed <1>:               Line Speed.          (line   6)
* terminal mode data types:              Mode Data Types.     (line   6)
* terminal mode functions:               Mode Functions.      (line   6)
* terminal model:                        Terminal Device Model.
                                                              (line   6)
* terminal modes, BSD:                   BSD Terminal Modes.  (line   6)
* terminal output queue:                 I/O Queues.          (line  27)
* terminal output queue, flushing:       Line Control.        (line  38)
* terminal output signal:                Job Control Signals. (line  79)
* terminated jobs, detecting:            Stopped and Terminated Jobs.
                                                              (line   6)
* termination signal:                    Termination Signals. (line  23)
* testing access permission:             Testing File Access. (line   6)
* testing exit status of child process:  Process Completion.  (line   6)
* Text file busy:                        Error Codes.         (line 168)
* text stream:                           Binary Streams.      (line  13)
* thrashing:                             Memory Subsystem.    (line  31)
* thread control:                        ISO C Thread Management.
                                                              (line   6)
* thread creation:                       ISO C Thread Management.
                                                              (line   6)
* thread group:                          Process Identification.
                                                              (line  19)
* thread ID:                             Process Identification.
                                                              (line  19)
* thread management:                     ISO C Thread Management.
                                                              (line   6)
* thread mutex tunables:                 POSIX Thread Tunables.
                                                              (line   6)
* thread of control:                     Program Basics.      (line   6)
* thread-local storage:                  ISO C Thread-local Storage.
                                                              (line   6)
* Thread-Safe:                           POSIX Safety Concepts.
                                                              (line  16)
* Thread-Unsafe:                         POSIX Safety Concepts.
                                                              (line  68)
* threads:                               Streams and Threads. (line   6)
* threads <1>:                           Threads.             (line   6)
* ticks, clock:                          Time Types.          (line  15)
* ticks, clock <1>:                      Processor And CPU Time.
                                                              (line  19)
* tilde expansion:                       Expansion Stages.    (line   9)
* time:                                  Time Basics.         (line   6)
* TIME termios slot:                     Noncanonical Input.  (line  35)
* time zone:                             TZ Variable.         (line   9)
* time zone database:                    Geographical TZ.     (line   9)
* time, elapsed:                         Time Basics.         (line  26)
* time, high precision:                  Setting and Adjusting the Time.
                                                              (line  60)
* timer:                                 Unsafe Features.     (line  87)
* Timer expired:                         Error Codes.         (line 624)
* timer, profiling:                      Setting an Alarm.    (line  22)
* timer, real-time:                      Setting an Alarm.    (line  13)
* timer, virtual:                        Setting an Alarm.    (line  17)
* timers, setting:                       Setting an Alarm.    (line  10)
* timespec:                              Time Types.          (line  52)
* timeval:                               Time Types.          (line  73)
* timing error in signal handling:       Remembering a Signal.
                                                              (line  72)
* TMPDIR environment variable:           Temporary Files.     (line 147)
* tokenizing strings:                    Finding Tokens in a String.
                                                              (line   6)
* Too many levels of symbolic links:     Error Codes.         (line 414)
* Too many links:                        Error Codes.         (line 196)
* Too many open files:                   Error Codes.         (line 144)
* Too many open files in system:         Error Codes.         (line 155)
* Too many processes:                    Error Codes.         (line 442)
* Too many references: cannot splice:    Error Codes.         (line 399)
* Too many users:                        Error Codes.         (line 448)
* tools, for installing library:         Tools for Compilation.
                                                              (line   6)
* traffic class:                         Internet Address Formats.
                                                              (line  55)
* Translator died:                       Error Codes.         (line 560)
* transmitting datagrams:                Sending Datagrams.   (line   6)
* Transport endpoint is already connected: Error Codes.       (line 374)
* Transport endpoint is not connected:   Error Codes.         (line 379)
* tree, directory:                       Working with Directory Trees.
                                                              (line   6)
* triangulation:                         glibc iconv Implementation.
                                                              (line  42)
* trigonometric functions:               Trig Functions.      (line   6)
* truncating strings:                    Truncating Strings.  (line   6)
* Tunable names:                         Tunable names.       (line   6)
* Tunable namespaces:                    Tunable names.       (line   6)
* tunables:                              Tunables.            (line   6)
* tunables thread mutex:                 POSIX Thread Tunables.
                                                              (line   6)
* tunables, data_cache_size:             Hardware Capability Tunables.
                                                              (line   6)
* tunables, hwcap:                       Hardware Capability Tunables.
                                                              (line   6)
* tunables, hwcaps:                      Hardware Capability Tunables.
                                                              (line   6)
* tunables, malloc:                      Memory Allocation Tunables.
                                                              (line   6)
* tunables, non_temporal_threshold, memset_non_temporal_threshold: Hardware Capability Tunables.
                                                              (line   6)
* tunables, shared_cache_size:           Hardware Capability Tunables.
                                                              (line   6)
* type measurements, floating:           Floating Type Macros.
                                                              (line   6)
* type measurements, integer:            Width of Type.       (line   6)
* type modifier character (printf):      Output Conversion Syntax.
                                                              (line  92)
* type modifier character (scanf):       Input Conversion Syntax.
                                                              (line  55)
* typeahead buffer:                      I/O Queues.          (line  11)
* TZ environment variable:               Standard Environment.
                                                              (line  68)
* UCS-2:                                 Extended Char Intro. (line  49)
* UCS-4:                                 Extended Char Intro. (line  49)
* ulps:                                  Errors in Math Functions.
                                                              (line   6)
* umask:                                 Setting Permissions. (line   6)
* unbuffered stream:                     Buffering Concepts.  (line   9)
* unconstrained memory allocation:       Unconstrained Allocation.
                                                              (line   6)
* undefining macros that shadow functions: Macro Definitions. (line   6)
* underflow exception:                   FP Exceptions.       (line   6)
* Unicode:                               Extended Char Intro. (line  37)
* Unix, Berkeley:                        Berkeley Unix.       (line   6)
* Unix, System V:                        SVID.                (line   6)
* unlinking a file:                      Deleting Files.      (line   6)
* unordered comparison:                  FP Comparison Functions.
                                                              (line   6)
* unreading characters:                  Unreading.           (line   6)
* Unsafe Features:                       Unsafe Features.     (line   6)
* upper-case character:                  Classification of Characters.
                                                              (line  48)
* upper-case character <1>:              Classification of Wide Characters.
                                                              (line 240)
* urgent data signal:                    Asynchronous I/O Signals.
                                                              (line  26)
* urgent socket condition:               Out-of-Band Data.    (line  18)
* usage limits:                          Limits on Resources. (line   6)
* usage messages, in argp:               Argp Helper Functions.
                                                              (line  11)
* user accounting database:              User Accounting Database.
                                                              (line   6)
* user database:                         User Database.       (line   6)
* user ID:                               User and Group IDs.  (line   6)
* user ID, determining:                  Who Logged In.       (line   6)
* user name:                             User and Group IDs.  (line   6)
* user signals:                          Miscellaneous Signals.
                                                              (line  13)
* usual file name errors:                File Name Errors.    (line   6)
* UTC:                                   Time Basics.         (line  15)
* UTF-16:                                Extended Char Intro. (line  49)
* UTF-7:                                 Extended Char Intro. (line 226)
* UTF-8:                                 Extended Char Intro. (line  49)
* UTF-8 <1>:                             Extended Char Intro. (line 219)
* va_copy:                               Concatenating Strings.
                                                              (line  75)
* Value too large for defined data type: Error Codes.         (line 616)
* variable number of arguments:          Variadic Functions.  (line   6)
* variable substitution:                 Expansion Stages.    (line  15)
* variable-sized arrays:                 GNU C Variable-Size Arrays.
                                                              (line   6)
* variadic function argument access:     Receiving Arguments. (line   6)
* variadic function prototypes:          Variadic Prototypes. (line   6)
* variadic functions:                    Variadic Functions.  (line   6)
* variadic functions, calling:           Calling Variadics.   (line   6)
* version (diagnostics):                 Dynamic Linker Diagnostics Values.
                                                              (line  59)
* virtual time alarm signal:             Alarm Signals.       (line  26)
* virtual timer:                         Setting an Alarm.    (line  17)
* volatile declarations:                 Nonreentrancy.       (line  20)
* waiting for a signal:                  Waiting for a Signal.
                                                              (line   6)
* waiting for completion of child process: Process Completion.
                                                              (line   6)
* waiting for input or output:           Waiting for I/O.     (line   6)
* WERASE character:                      Editing Characters.  (line  66)
* whitespace character:                  Classification of Characters.
                                                              (line 103)
* whitespace character <1>:              Classification of Wide Characters.
                                                              (line 207)
* wide character:                        Extended Char Intro. (line  31)
* wide string:                           Representation of Strings.
                                                              (line  22)
* wide string <1>:                       Representation of Strings.
                                                              (line  86)
* width of integer type:                 Width of Type.       (line   6)
* wildcard expansion:                    Expansion Stages.    (line  27)
* wint_t:                                String/Array Conventions.
                                                              (line  41)
* word expansion:                        Word Expansion.      (line   6)
* working directory:                     Working Directory.   (line   6)
* write lock:                            File Locks.          (line  15)
* writing to a file descriptor:          I/O Primitives.      (line 168)
* writing to a socket:                   Transferring Data.   (line   6)
* writing to a stream, by blocks:        Block Input/Output.  (line   9)
* writing to a stream, by characters:    Simple Output.       (line   6)
* writing to a stream, formatted:        Formatted Output.    (line   6)
* Wrong medium type:                     Error Codes.         (line 794)
* xmalloc function:                      Malloc Examples.     (line  10)
* xrealloc and xreallocarray functions:  Changing Block Size. (line  64)
* You really blew it this time:          Error Codes.         (line 571)
* YP:                                    Host Identification. (line  37)
* YP domain name:                        Host Identification. (line  37)
* YP domain name <1>:                    Host Identification. (line 110)
* YP domain name <2>:                    Host Identification. (line 122)
* zero divide:                           FP Exceptions.       (line   6)