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/* `HUGE_VAL' constants for m68k (where it is infinity).
   Used by <stdlib.h> and <math.h> functions for overflow.
   Copyright (C) 1992, 1995, 1996, 1997, 1999, 2000 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/huge_val.h> directly; include <math.h> instead."
#endif
 
 
#include <features.h>
#include <sys/cdefs.h>
 
/* IEEE positive infinity (-HUGE_VAL is negative infinity).  */
 
#ifdef	__GNUC__
 
# if __GNUC_PREREQ(2,96)
 
#  define HUGE_VAL (__extension__ 0x1.0p2047)
 
# else
 
#  define HUGE_VAL					\
  (__extension__					\
   ((union { unsigned long long __l; double __d; })	\
    { __l: 0x7ff0000000000000ULL }).__d)
 
# endif
 
#else /* not GCC */
 
static union { unsigned char __c[8]; double __d; } __huge_val =
  { { 0x7f, 0xf0, 0, 0, 0, 0, 0, 0 } };
# define HUGE_VAL	(__huge_val.__d)
 
#endif	/* GCC.  */
 
 
/* ISO C 99 extensions: (float) HUGE_VALF and (long double) HUGE_VALL.  */
 
#ifdef __USE_ISOC99
 
# if __GNUC_PREREQ(2,96)
 
#  define HUGE_VALF (__extension__ 0x1.0p255f)
#  define HUGE_VALL (__extension__ 0x1.0p32767L)
 
# else
 
#  ifdef __GNUC__
 
#   define HUGE_VALF					\
  (__extension__					\
   ((union { unsigned long __l; float __f; })		\
    { __l: 0x7f800000UL }).__f)
 
#   define HUGE_VALL					\
  (__extension__					\
   ((union { unsigned long __l[3]; long double __ld; })	\
    { __l: { 0x7fff0000UL, 0x80000000UL, 0UL } }).__ld)
 
#  else /* not GCC */
 
static union { unsigned char __c[4]; float __f; } __huge_valf =
  { { 0x7f, 0x80, 0, 0 } };
#   define HUGE_VALF	(__huge_valf.__f)
 
static union { unsigned char __c[12]; long double __ld; } __huge_vall =
  { { 0x7f, 0xff, 0, 0, 0x80, 0, 0, 0, 0, 0, 0, 0 } };
#   define HUGE_VALL	(__huge_vall.__ld)
 
#  endif /* GCC.  */
 
# endif /* GCC 2.95.  */
 
#endif	/* __USE_ISOC99.  */