text: /* Inline math functions for ia64.
     Copyright (C) 2004, 2007 Free Software Foundation, Inc.
     This file is part of the GNU C Library.
  
     The GNU C Library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Lesser General Public
     License as published by the Free Software Foundation; either
     version 2.1 of the License, or (at your option) any later version.
  
     The GNU C Library is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     Lesser General Public License for more details.
  
     You should have received a copy of the GNU Lesser General Public
     License along with the GNU C Library; if not, write to the Free
     Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
     02111-1307 USA.  */
  
  #ifndef _MATH_H
  # error "Never use <bits/mathinline.h> directly; include <math.h> instead."
  #endif
  
  #ifndef __extern_inline
  # define __MATH_INLINE __inline
  #else
  # define __MATH_INLINE __extern_inline
  #endif
  
  #if defined __USE_ISOC99 && defined __GNUC__ && __GNUC__ >= 2
  /* The gcc, version 2.7 or below, has problems with all this inlining
     code.  So disable it for this version of the compiler.  */
  # if __GNUC_PREREQ (2, 8)
  /* Test for negative number.  Used in the signbit() macro.  */
  __MATH_INLINE int
  __NTH (__signbitf (float __x))
  {
    __extension__ union { float __f; int __i; } __u = { __f: __x };
    return __u.__i < 0;
  }
  __MATH_INLINE int
  __NTH (__signbit (double __x))
  {
    __extension__ union { double __d; int __i[2]; } __u = { __d: __x };
    return __u.__i[1] < 0;
  }
  __MATH_INLINE int
  __NTH (__signbitl (long double __x))
  {
    __extension__ union { long double __l; int __i[3]; } __u = { __l: __x };
    return (__u.__i[2] & 0x8000) != 0;
  }
  # endif
  #endif
  