mathdef.h 1.3 KB

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  1. /* Copyright (C) 1997, 1998, 1999, 2000 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. typedef float float_t;
  20. typedef double double_t;
  21. /* The values returned by `ilogb' for 0 and NaN respectively. */
  22. # define FP_ILOGB0 (-2147483647 - 1)
  23. # define FP_ILOGBNAN (2147483647)
  24. #endif /* ISO C99 */
  25. #if !defined __NO_LONG_DOUBLE_MATH && !defined __UCLIBC_HAS_LONG_DOUBLE_MATH__
  26. # define __NO_LONG_DOUBLE_MATH 1
  27. #endif