fenv_libc.h 1.4 KB

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  1. /* Internal libc stuff for floating point environment routines.
  2. Copyright (C) 2000-2026 Free Software Foundation, Inc.
  3. This file is part of the GNU C Library.
  4. The GNU C Library is free software; you can redistribute it and/or
  5. modify it under the terms of the GNU Lesser General Public
  6. License as published by the Free Software Foundation; either
  7. version 2.1 of the License, or (at your option) any later version.
  8. The GNU C Library is distributed in the hope that it will be useful,
  9. but WITHOUT ANY WARRANTY; without even the implied warranty of
  10. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  11. Lesser General Public License for more details.
  12. You should have received a copy of the GNU Lesser General Public
  13. License along with the GNU C Library. If not, see
  14. <https://www.gnu.org/licenses/>. */
  15. #ifndef _FENV_LIBC_H
  16. #define _FENV_LIBC_H 1
  17. #include <fenv.h>
  18. #define FPCR_ROUND_MASK (3UL << 58)
  19. #define FPCR_ROUND_SHIFT 58
  20. #define SWCR_MAP_MASK (3UL << 12)
  21. #define SWCR_ENABLE_SHIFT 16
  22. #define SWCR_ENABLE_MASK (FE_ALL_EXCEPT >> SWCR_ENABLE_SHIFT)
  23. #define SWCR_STATUS_MASK (FE_ALL_EXCEPT)
  24. #define SWCR_ALL_MASK (SWCR_ENABLE_MASK \
  25. | SWCR_MAP_MASK \
  26. | SWCR_STATUS_MASK)
  27. /* These are declared for public consumption in <bits/fenv.h>. */
  28. libc_hidden_proto(__ieee_set_fp_control)
  29. libc_hidden_proto(__ieee_get_fp_control)
  30. #endif /* fenv_libc.h */