sysdeps/arm/fpu/bits/mathdef.h

   1 /* Copyright (C) 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 #if defined  __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF
  24 # define _MATH_H_MATHDEF        1
  25
  26 /* GCC does not promote `float' values to `double'.  */
  27 typedef float float_t;          /* `float' expressions are evaluated as
  28                                    `float'.  */
  29 typedef double double_t;        /* `double' expressions are evaluated as
  30                                    `double'.  */
  31
  32 /* The values returned by `ilogb' for 0 and NaN respectively.  */
  33 # define FP_ILOGB0      (-2147483647)
  34 # define FP_ILOGBNAN    (2147483647)
  35
  36 #endif  /* ISO C99 */
  37
  38 #ifndef __NO_LONG_DOUBLE_MATH
  39 /* Signal that we do not really have a `long double'.  This disables the
  40    declaration of all the `long double' function variants.  */
  41 /* XXX The FPA does support this but the patterns in GCC are currently
  42    turned off.  */
  43 # define __NO_LONG_DOUBLE_MATH  1
  44 #endif