mathdef.h 1.7 KB

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  1. /* Copyright (C) 1997, 1998, 1999, 2000, 2004, 2006
  2. Free Software Foundation, Inc.
  3. This file is part of the GNU C Library.
  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. #if !defined _MATH_H && !defined _COMPLEX_H
  16. # error "Never use <bits/mathdef.h> directly; include <math.h> instead"
  17. #endif
  18. #include <bits/wordsize.h>
  19. /* FIXME! This file describes properties of the compiler, not the machine;
  20. it should not be part of libc! */
  21. #if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF
  22. # define _MATH_H_MATHDEF 1
  23. /* SPARC has both `float' and `double' arithmetic. */
  24. typedef float float_t;
  25. typedef double double_t;
  26. /* The values returned by `ilogb' for 0 and NaN respectively. */
  27. # define FP_ILOGB0 (-2147483647)
  28. # define FP_ILOGBNAN (2147483647)
  29. #endif /* ISO C99 */
  30. #ifndef __NO_LONG_DOUBLE_MATH
  31. # if __WORDSIZE == 32
  32. /* Signal that in 32bit ABI we do not really have a `long double'.
  33. The disables the declaration of all the `long double' function
  34. variants. */
  35. # define __NO_LONG_DOUBLE_MATH 1
  36. # elif !defined __UCLIBC_HAS_LONG_DOUBLE_MATH__
  37. # define __NO_LONG_DOUBLE_MATH 1
  38. # endif
  39. #endif