float.c 1.3 KB

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  1. /* Auxiliary definitions for <float.h>.
  2. Copyright (C) 2011-2023 Free Software Foundation, Inc.
  3. Written by Bruno Haible <bruno@clisp.org>, 2011.
  4. This file is free software: you can redistribute it and/or modify
  5. it under the terms of the GNU Lesser General Public License as
  6. published by the Free Software Foundation; either version 2.1 of the
  7. License, or (at your option) any later version.
  8. This file 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
  11. GNU Lesser General Public License for more details.
  12. You should have received a copy of the GNU Lesser General Public License
  13. along with this program. If not, see <https://www.gnu.org/licenses/>. */
  14. #include <config.h>
  15. /* Specification. */
  16. #include <float.h>
  17. #if (defined _ARCH_PPC || defined _POWER) && (defined _AIX || defined __linux__) && (LDBL_MANT_DIG == 106) && defined __GNUC__
  18. const union gl_long_double_union gl_LDBL_MAX =
  19. { { DBL_MAX, DBL_MAX / (double)134217728UL / (double)134217728UL } };
  20. #elif defined __i386__
  21. const union gl_long_double_union gl_LDBL_MAX =
  22. { { 0xFFFFFFFF, 0xFFFFFFFF, 32766 } };
  23. #else
  24. /* This declaration is solely to ensure that after preprocessing
  25. this file is never empty. */
  26. typedef int dummy;
  27. #endif