ports/sysdeps/m68k/m680x0/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 #if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF
  23 # define _MATH_H_MATHDEF        1
  24
  25 /* The m68k FPUs evaluate all values in the 96 bit floating-point format
  26    which is also available for the user as `long double'.  Therefore we
  27    define: */
  28 typedef long double float_t;    /* `float' expressions are evaluated as
  29                                    `long double'.  */
  30 typedef long double double_t;   /* `double' expressions are evaluated as
  31                                    `long double'.  */
  32
  33 /* The values returned by `ilogb' for 0 and NaN respectively.  */
  34 # define FP_ILOGB0      (-2147483647 - 1)
  35 # define FP_ILOGBNAN    (2147483647)
  36
  37 #endif  /* ISO C99 */