sysdeps/powerpc/bits/mathdef.h

   1 /* Copyright (C) 1997,1998,1999,2000,2003,2004,2006,2010,2012
   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
  24 /* FIXME! This file describes properties of the compiler, not the machine;
  25    it should not be part of libc!
  26
  27    FIXME! This file does not deal with the -fshort-double option of
  28    gcc! */
  29
  30 #if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF
  31 # define _MATH_H_MATHDEF        1
  32
  33 /* PowerPC has both `float' and `double' arithmetic.  */
  34 typedef float float_t;
  35 typedef double double_t;
  36
  37 /* The values returned by `ilogb' for 0 and NaN respectively.  */
  38 # define FP_ILOGB0      (-2147483647)
  39 # define FP_ILOGBNAN    (2147483647)
  40
  41 /* The powerpc has a combined multiply/add instruction.  */
  42 # define FP_FAST_FMA 1
  43 # define FP_FAST_FMAF 1
  44
  45 #endif  /* ISO C99 */