mathdef.h 2.3 KB

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  1. /* Copyright (C) 1997,1998,1999,2000,2003,2004,2006
  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. /* FIXME! This file describes properties of the compiler, not the machine;
  19. it should not be part of libc! */
  20. #if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF
  21. # define _MATH_H_MATHDEF 1
  22. /* Alpha has both `float' and `double' arithmetic. */
  23. typedef float float_t;
  24. typedef double double_t;
  25. /* The values returned by `ilogb' for 0 and NaN respectively. */
  26. # define FP_ILOGB0 (-2147483647)
  27. # define FP_ILOGBNAN (2147483647)
  28. #endif /* ISO C99 && MATH_H */
  29. #if defined _COMPLEX_H && !defined _COMPLEX_H_MATHDEF
  30. # define _COMPLEX_H_MATHDEF 1
  31. # if defined(__GNUC__) && !__GNUC_PREREQ(3,4)
  32. /* Due to an ABI change, we need to remap the complex float symbols. */
  33. # define _Mdouble_ float
  34. # define __MATHCALL(function, args) \
  35. __MATHDECL(_Complex float, function, args)
  36. # define __MATHDECL(type, function, args) \
  37. __MATHDECL_1(type, function##f, args, __c1_##function##f); \
  38. __MATHDECL_1(type, __##function##f, args, __c1_##function##f)
  39. # define __MATHDECL_1(type, function, args, alias) \
  40. extern type function args __asm__(#alias) __THROW
  41. # include <bits/cmathcalls.h>
  42. # undef _Mdouble_
  43. # undef __MATHCALL
  44. # undef __MATHDECL
  45. # undef __MATHDECL_1
  46. # endif /* GNUC before 3.4 */
  47. #endif /* COMPLEX_H */
  48. #if !defined __NO_LONG_DOUBLE_MATH && !defined __UCLIBC_HAS_LONG_DOUBLE_MATH__
  49. # define __NO_LONG_DOUBLE_MATH 1
  50. #endif