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, write to the Free
  14. Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  15. 02111-1307 USA. */
  16. #if !defined _MATH_H && !defined _COMPLEX_H
  17. # error "Never use <bits/mathdef.h> directly; include <math.h> instead"
  18. #endif
  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. /* Alpha 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 && MATH_H */
  30. #if defined _COMPLEX_H && !defined _COMPLEX_H_MATHDEF
  31. # define _COMPLEX_H_MATHDEF 1
  32. # if defined(__GNUC__) && !__GNUC_PREREQ(3,4)
  33. /* Due to an ABI change, we need to remap the complex float symbols. */
  34. # define _Mdouble_ float
  35. # define __MATHCALL(function, args) \
  36. __MATHDECL(_Complex float, function, args)
  37. # define __MATHDECL(type, function, args) \
  38. __MATHDECL_1(type, function##f, args, __c1_##function##f); \
  39. __MATHDECL_1(type, __##function##f, args, __c1_##function##f)
  40. # define __MATHDECL_1(type, function, args, alias) \
  41. extern type function args __asm__(#alias) __THROW
  42. # include <bits/cmathcalls.h>
  43. # undef _Mdouble_
  44. # undef __MATHCALL
  45. # undef __MATHDECL
  46. # undef __MATHDECL_1
  47. # endif /* GNUC before 3.4 */
  48. #endif /* COMPLEX_H */
  49. #if !defined __NO_LONG_DOUBLE_MATH && !defined __UCLIBC_HAS_LONG_DOUBLE_MATH__
  50. # define __NO_LONG_DOUBLE_MATH 1
  51. #endif