sysdeps/alpha/fpu/bits/mathdef.h

   1 /* Copyright (C) 1997, 1998, 1999, 2000, 2003, 2004
   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, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #if !defined _MATH_H && !defined _COMPLEX_H
  21 # error "Never use <bits/mathdef.h> directly; include <math.h> instead"
  22 #endif
  23
  24 /* FIXME! This file describes properties of the compiler, not the machine;
  25    it should not be part of libc!  */
  26
  27 #if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF
  28 # define _MATH_H_MATHDEF        1
  29
  30 # ifdef __GNUC__
  31 #  if __STDC__ == 1
  32
  33 /* In GNU or ANSI mode, gcc leaves `float' expressions as-is.  */
  34 typedef float float_t;
  35 typedef double double_t;
  36
  37 #  else
  38
  39 /* For `gcc -traditional', `float' expressions are evaluated as `double'. */
  40 typedef double float_t;
  41 typedef double double_t;
  42
  43 #  endif
  44 # else
  45
  46 /* Wild guess at types for float_t and double_t. */
  47 typedef double float_t;
  48 typedef double double_t;
  49
  50 # endif
  51
  52 /* The values returned by `ilogb' for 0 and NaN respectively.  */
  53 # define FP_ILOGB0     (-2147483647)
  54 # define FP_ILOGBNAN   (2147483647)
  55
  56 #endif  /* ISO C99 && MATH_H */
  57
  58 #ifndef __NO_LONG_DOUBLE_MATH
  59 /* Signal that we do not really have a `long double'.  The disables the
  60    declaration of all the `long double' function variants.  */
  61 # define __NO_LONG_DOUBLE_MATH  1
  62 #endif
  63
  64 #if defined _COMPLEX_H && !defined _COMPLEX_H_MATHDEF
  65 # define _COMPLEX_H_MATHDEF 1
  66 # if defined(__GNUC__) && !__GNUC_PREREQ(3,4)
  67
  68 /* Due to an ABI change, we need to remap the complex float symbols.  */
  69 #  define _Mdouble_             float
  70 #  define __MATHCALL(function, args) \
  71     __MATHDECL (_Complex float, function, args)
  72 #  define __MATHDECL(type, function, args) \
  73     __MATHDECL_1(type, function##f, args, __c1_##function##f); \
  74     __MATHDECL_1(type, __##function##f, args, __c1_##function##f)
  75 #  define __MATHDECL_1(type, function, args, alias) \
  76     extern type function args __asm__(#alias) __THROW
  77
  78 #  include <bits/cmathcalls.h>
  79
  80 #  undef _Mdouble_
  81 #  undef __MATHCALL
  82 #  undef __MATHDECL
  83 #  undef __MATHDECL_1
  84
  85 # endif /* GNUC before 3.4 */
  86 #endif /* COMPLEX_H */