sysdeps/tile/bits/mathinline.h

   1 /* Copyright (C) 2011-2016 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
   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 #ifndef _MATH_H
  20 # error "Never use <bits/mathinline.h> directly; include <math.h> instead."
  21 #endif
  22
  23 #ifndef __extern_always_inline
  24 # define __MATH_INLINE __inline
  25 #else
  26 # define __MATH_INLINE __extern_always_inline
  27 #endif
  28
  29
  30 #if defined __USE_ISOC99 && defined __GNUC__
  31
  32 /* Test for negative number.  Used in the signbit() macro.  */
  33 __MATH_INLINE int
  34 __NTH (__signbitf (float __x))
  35 {
  36   return __builtin_signbitf (__x);
  37 }
  38 __MATH_INLINE int
  39 __NTH (__signbit (double __x))
  40 {
  41   return __builtin_signbit (__x);
  42 }
  43
  44 #endif