fsetexcptflg.c 1.1 KB

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  1. /* Set floating-point environment exception handling.
  2. Copyright (C) 1997-2025 Free Software Foundation, Inc.
  3. The GNU C Library is free software; you can redistribute it and/or
  4. modify it under the terms of the GNU Lesser General Public
  5. License as published by the Free Software Foundation; either
  6. version 2.1 of the License, or (at your option) any later version.
  7. The GNU C Library is distributed in the hope that it will be useful,
  8. but WITHOUT ANY WARRANTY; without even the implied warranty of
  9. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  10. Lesser General Public License for more details.
  11. You should have received a copy of the GNU Lesser General Public
  12. License along with the GNU C Library; if not, see
  13. <https://www.gnu.org/licenses/>. */
  14. #include <fenv.h>
  15. #include "fenv_private.h"
  16. #include <math.h>
  17. int
  18. fesetexceptflag (const fexcept_t *flagp, int excepts)
  19. {
  20. fenv_t tmp;
  21. __fenv_stfsr (tmp);
  22. tmp &= ~(excepts & FE_ALL_EXCEPT);
  23. tmp |= *flagp & excepts & FE_ALL_EXCEPT;
  24. __fenv_ldfsr (tmp);
  25. /* Success. */
  26. return 0;
  27. }