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/* `NAN' constants for m68k.
Copyright (C) 1997 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef _NAN_H
#define _NAN_H 1
/* IEEE Not A Number. */
#ifdef __GNUC__
#define NAN \
(__extension__ \
((union { unsigned long long __l; double __d; }) \
{ __l: 0x7fffffffffffffffULL }).__d)
#define NANF \
(__extension__ \
((union { unsigned long __l; float __f; }) \
{ __l: 0x7fffffffUL }).__f)
#define NANL \
(__extension__ \
((union { unsigned long __l[3]; long double __ld; }) \
{ __l: { 0x7fff0000UL, 0xffffffffUL, 0xffffffffUL } }).__ld)
#else
static union { unsigned char __c[8]; double __d; } __nan =
{ { 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff } };
#define NAN (__nan.__d)
static union { unsigned char __c[4]; float __f; } __nanf =
{ { 0x7f, 0xff, 0xff, 0xff } };
#define NANF (__nanf.__f)
static union { unsigned char __c[12]; long double __ld; } __nanl =
{ { 0x7f, 0xff, 0, 0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff } };
#define NANL (__nanl.__ld)
#endif /* GCC. */
#endif /* nan.h */
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