test-fpucw.c 1.3 KB

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  1. /* Copyright (C) 2000 Free Software Foundation, Inc.
  2. This file is part of the GNU C Library.
  3. Contributed by Andreas Jaeger <aj@suse.de>, 2000.
  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. <http://www.gnu.org/licenses/>. */
  15. #include <fpu_control.h>
  16. #include <stdio.h>
  17. int
  18. main (void)
  19. {
  20. #ifdef _FPU_GETCW
  21. /* Some architectures don't have _FPU_GETCW (e.g. Linux/Alpha). */
  22. fpu_control_t cw;
  23. _FPU_GETCW (cw);
  24. cw &= ~_FPU_RESERVED;
  25. if (cw != (_FPU_DEFAULT & ~_FPU_RESERVED))
  26. printf ("control word is 0x%lx but should be 0x%lx.\n",
  27. (long int) cw, (long int) (_FPU_DEFAULT & ~_FPU_RESERVED));
  28. return cw != (_FPU_DEFAULT & ~_FPU_RESERVED);
  29. #else
  30. return 0;
  31. #endif
  32. }