libc/sysdeps/linux/powerpc/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 #include <features.h>
  20
  21 #if !defined _MATH_H && !defined _COMPLEX_H
  22 # error "Never use <bits/mathdef.h> directly; include <math.h> instead"
  23 #endif
  24
  25
  26 /* FIXME! This file describes properties of the compiler, not the machine;
  27    it should not be part of libc!
  28
  29    FIXME! This file does not deal with the -fshort-double option of
  30    gcc! */
  31
  32 #if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF
  33 # define _MATH_H_MATHDEF        1
  34
  35 /* PowerPC has both `float' and `double' arithmetic.  */
  36 typedef float float_t;          /* `float' expressions are evaluated as
  37                                    `float'.  */
  38 typedef double double_t;        /* `double' expressions are evaluated as
  39                                    `double'.  */
  40
  41 /* The values returned by `ilogb' for 0 and NaN respectively.  */
  42 # define FP_ILOGB0      (-2147483647)
  43 # define FP_ILOGBNAN    (2147483647)
  44
  45 #endif  /* ISO C99 */
  46
  47 #if !defined __NO_LONG_DOUBLE_MATH && !defined __UCLIBC_HAS_LONG_DOUBLE_MATH__
  48 # define __NO_LONG_DOUBLE_MATH  1
  49 #endif