sysdeps/s390/bits/mathdef.h

   1 /* Copyright (C) 1997, 1998, 1999, 2000, 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 #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 /* Normally, there is no long double type and the `float' and `double'
  27    expressions are evaluated as `double'.  */
  28 typedef double float_t;         /* `float' expressions are evaluated as
  29                                    `double'.  */
  30 typedef double double_t;        /* `double' expressions are evaluated as
  31                                    `double'.  */
  32
  33 /* The values returned by `ilogb' for 0 and NaN respectively.  */
  34 # define FP_ILOGB0      (-2147483647)
  35 # define FP_ILOGBNAN    2147483647
  36
  37 #endif  /* ISO C99 */