| 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950 |
- /* Perform binary search - inline version.
- Copyright (C) 1991-2026 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <https://www.gnu.org/licenses/>. */
- __extern_inline void *
- bsearch (const void *__key, const void *__base, size_t __nmemb, size_t __size,
- __compar_fn_t __compar)
- {
- const void *__p;
- int __comparison;
- while (__nmemb)
- {
- __p = (const void *) (((const char *) __base) + ((__nmemb >> 1) * __size));
- __comparison = (*__compar) (__key, __p);
- if (__comparison == 0)
- {
- #if __GNUC_PREREQ(4, 6)
- # pragma GCC diagnostic push
- # pragma GCC diagnostic ignored "-Wcast-qual"
- #endif
- return (void *) __p;
- #if __GNUC_PREREQ(4, 6)
- # pragma GCC diagnostic pop
- #endif
- }
- if (__comparison > 0)
- {
- __base = ((const char *) __p) + __size;
- --__nmemb;
- }
- __nmemb >>= 1;
- }
- return NULL;
- }
|