sysdeps/sparc/fpu/bits/mathdef.h

   1 /* Copyright (C) 1997, 1998, 1999, 2000, 2004 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   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
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  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 #include <bits/wordsize.h>
  24
  25 /* FIXME! This file describes properties of the compiler, not the machine;
  26    it should not be part of libc!  */
  27
  28 #if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF
  29 # define _MATH_H_MATHDEF        1
  30
  31 # ifdef __GNUC__
  32 #  if __STDC__ == 1
  33
  34 /* In GNU or ANSI mode, gcc leaves `float' expressions as-is.  */
  35 typedef float float_t;
  36 typedef double double_t;
  37
  38 #  else
  39
  40 /* For `gcc -traditional', `float' expressions are evaluated as `double'. */
  41 typedef double float_t;
  42 typedef double double_t;
  43
  44 #  endif
  45 # else
  46
  47 /* Wild guess at types for float_t and double_t. */
  48 typedef double float_t;
  49 typedef double double_t;
  50
  51 # endif
  52
  53 /* The values returned by `ilogb' for 0 and NaN respectively.  */
  54 # define FP_ILOGB0       (-2147483647)
  55 # define FP_ILOGBNAN     (2147483647)
  56
  57 #endif  /* ISO C99 */
  58
  59 #ifndef __NO_LONG_DOUBLE_MATH
  60
  61 # if __WORDSIZE == 32
  62 /* Signal that in 32bit ABI we do not really have a `long double'.
  63    The disables the declaration of all the `long double' function
  64    variants.  */
  65 #  define __NO_LONG_DOUBLE_MATH 1
  66 # endif
  67
  68 #endif