tst-stack-align.h 1.3 KB

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  1. /* Copyright (C) 2003 Free Software Foundation, Inc.
  2. This file is part of the GNU C Library.
  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. <http://www.gnu.org/licenses/>. */
  14. #include <stdio.h>
  15. #include <stdint.h>
  16. #define TEST_STACK_ALIGN() \
  17. ({ \
  18. double _d = 12.0; \
  19. long double _ld = 15.0; \
  20. int _ret = 0; \
  21. printf ("double: %g %p %zu\n", _d, &_d, __alignof (double)); \
  22. if ((((uintptr_t) &_d) & (__alignof (double) - 1)) != 0) \
  23. _ret = 1; \
  24. \
  25. printf ("ldouble: %Lg %p %zu\n", _ld, &_ld, __alignof (long double)); \
  26. if ((((uintptr_t) &_ld) & (__alignof (long double) - 1)) != 0) \
  27. _ret = 1; \
  28. _ret; \
  29. })