sysdeps/alpha/bits/mathdef.h

   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
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library.  If not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #if !defined _MATH_H && !defined _COMPLEX_H
  20 # error "Never use <bits/mathdef.h> directly; include <math.h> instead"
  21 #endif
  22
  23 /* FIXME! This file describes properties of the compiler, not the machine;
  24    it should not be part of libc!  */
  25
  26 #if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF
  27 # define _MATH_H_MATHDEF        1
  28
  29 # ifdef __GNUC__
  30 #  if __STDC__ == 1
  31
  32 /* In GNU or ANSI mode, gcc leaves `float' expressions as-is.  */
  33 typedef float float_t;
  34 typedef double double_t;
  35
  36 #  else
  37
  38 /* For `gcc -traditional', `float' expressions are evaluated as `double'. */
  39 typedef double float_t;
  40 typedef double double_t;
  41
  42 #  endif
  43 # else
  44
  45 /* Wild guess at types for float_t and double_t. */
  46 typedef double float_t;
  47 typedef double double_t;
  48
  49 # endif
  50
  51 /* The values returned by `ilogb' for 0 and NaN respectively.  */
  52 # define FP_ILOGB0     (-2147483647)
  53 # define FP_ILOGBNAN   (2147483647)
  54
  55 #endif  /* ISO C99 && MATH_H */
  56
  57 #if defined _COMPLEX_H && !defined _COMPLEX_H_MATHDEF
  58 # define _COMPLEX_H_MATHDEF 1
  59 # if defined(__GNUC__) && !__GNUC_PREREQ(3,4)
  60
  61 /* Due to an ABI change, we need to remap the complex float symbols.  */
  62 #  define _Mdouble_             float
  63 #  define __MATHCALL(function, args) \
  64     __MATHDECL (_Complex float, function, args)
  65 #  define __MATHDECL(type, function, args) \
  66     __MATHDECL_1(type, function##f, args, __c1_##function##f); \
  67     __MATHDECL_1(type, __##function##f, args, __c1_##function##f)
  68 #  define __MATHDECL_1(type, function, args, alias) \
  69     extern type function args __asm__(#alias) __THROW
  70
  71 #  include <bits/cmathcalls.h>
  72
  73 #  undef _Mdouble_
  74 #  undef __MATHCALL
  75 #  undef __MATHDECL
  76 #  undef __MATHDECL_1
  77
  78 # endif /* GNUC before 3.4 */
  79 #endif /* COMPLEX_H */