text: /* `HUGE_VALF' constant for IEEE 754 machines (where it is infinity).
     Used by <stdlib.h> and <math.h> functions for overflow.
     Copyright (C) 1992-2014 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, see
     <http://www.gnu.org/licenses/>.  */
  
  #ifndef _MATH_H
  # error "Never use <bits/huge_valf.h> directly; include <math.h> instead."
  #endif
  
  /* IEEE positive infinity (-HUGE_VAL is negative infinity).  */
  
  #if __GNUC_PREREQ(3,3)
  # define HUGE_VALF	(__builtin_huge_valf())
  #elif __GNUC_PREREQ(2,96)
  # define HUGE_VALF	(__extension__ 0x1.0p255f)
  #elif defined __GNUC__
  
  #   define HUGE_VALF \
    (__extension__							      \
     ((union { unsigned __l __attribute__((__mode__(__SI__))); float __d; })    \
      { __l: 0x7f800000UL }).__d)
  
  #else /* not GCC */
  
  typedef union { unsigned char __c[4]; float __f; } __huge_valf_t;
  
  # if __BYTE_ORDER == __BIG_ENDIAN
  #  define __HUGE_VALF_bytes	{ 0x7f, 0x80, 0, 0 }
  # endif
  # if __BYTE_ORDER == __LITTLE_ENDIAN
  #  define __HUGE_VALF_bytes	{ 0, 0, 0x80, 0x7f }
  # endif
  
  static __huge_valf_t __huge_valf = { __HUGE_VALF_bytes };
  # define HUGE_VALF	(__huge_valf.__f)
  
  #endif	/* GCC.  */
  