sysdeps/powerpc/bits/mathdef.h

   1 /* Copyright (C) 1997-2014 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, see
  16    <http://www.gnu.org/licenses/>.  */
  17
  18 #if !defined _MATH_H && !defined _COMPLEX_H
  19 # error "Never use <bits/mathdef.h> directly; include <math.h> instead"
  20 #endif
  21
  22
  23 /* FIXME! This file describes properties of the compiler, not the machine;
  24    it should not be part of libc!
  25
  26    FIXME! This file does not deal with the -fshort-double option of
  27    gcc! */
  28
  29 #if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF
  30 # define _MATH_H_MATHDEF        1
  31
  32 /* PowerPC has both `float' and `double' arithmetic.  */
  33 typedef float float_t;
  34 typedef double double_t;
  35
  36 /* The values returned by `ilogb' for 0 and NaN respectively.  */
  37 # define FP_ILOGB0      (-2147483647)
  38 # define FP_ILOGBNAN    (2147483647)
  39
  40 # if !defined _SOFT_FLOAT && !defined __NO_FPRS__
  41 /* The powerpc has a combined multiply/add instruction.  */
  42 #  define FP_FAST_FMA 1
  43 #  define FP_FAST_FMAF 1
  44 # endif
  45
  46 #endif  /* ISO C99 */