mathdef.h 1.6 KB

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  1. /* Copyright (C) 1997, 1998, 1999, 2000, 2004 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. #if !defined _MATH_H && !defined _COMPLEX_H
  15. # error "Never use <bits/mathdef.h> directly; include <math.h> instead"
  16. #endif
  17. #if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF
  18. # define _MATH_H_MATHDEF 1
  19. /* The m68k FPUs evaluate all values in the 96 bit floating-point format
  20. which is also available for the user as `long double'. Therefore we
  21. define: */
  22. typedef long double float_t; /* `float' expressions are evaluated as
  23. `long double'. */
  24. typedef long double double_t; /* `double' expressions are evaluated as
  25. `long double'. */
  26. /* The values returned by `ilogb' for 0 and NaN respectively. */
  27. # define FP_ILOGB0 (-2147483647 - 1)
  28. # define FP_ILOGBNAN (2147483647)
  29. #endif /* ISO C99 */
  30. #if !defined __NO_LONG_DOUBLE_MATH && !defined __UCLIBC_HAS_LONG_DOUBLE_MATH__
  31. # define __NO_LONG_DOUBLE_MATH 1
  32. #endif