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/* Macros MPFR_DBL_NAN, MPFR_DBL_INFP and MPFR_DBL_INFM
Copyright 2002 Free Software Foundation, Inc.
This file is part of the MPFR Library.
The MPFR 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 MPFR 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 MPFR 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. */
#if (defined (__arm__) && (defined (__ARMWEL__) || defined (__linux__)))
/* little endian ARM */
#define _MPFR_NAN_BYTES { 0, 0, 0xf8, 0x7f, 0, 0, 0, 0 }
#define _MPFR_INFP_BYTES { 0, 0, 0x80, 0x7f }
#define _MPFR_INFM_BYTES { 0, 0, 0x80, 0xff }
#else
#if defined (_LITTLE_ENDIAN) || defined (__LITTLE_ENDIAN__) \
|| defined (__alpha) \
|| (defined (__arm__) && (defined (__ARMWEL__) || defined (__linux__)))\
|| defined (__clipper__) \
|| defined (__cris) \
|| defined (__i386__) \
|| defined (__i860__) \
|| defined (__i960__) \
|| defined (__ia64) \
|| defined (MIPSEL) || defined (_MIPSEL) \
|| defined (__ns32000__) \
|| defined (__WINNT) || defined (_WIN32)
#define _MPFR_NAN_BYTES { 0, 0, 0, 0, 0, 0, 0xf8, 0x7f }
#define _MPFR_INFP_BYTES { 0, 0, 0x80, 0x7f }
#define _MPFR_INFM_BYTES { 0, 0, 0x80, 0xff }
#else
#if defined (_BIG_ENDIAN) || defined (__BIG_ENDIAN__) \
|| defined (__mc68000__) || defined (__mc68020__) || defined (__m68k__)\
|| defined (mc68020) \
|| defined (__a29k__) || defined (_AM29K) \
|| defined (__arm__) \
|| (defined (__convex__) && defined (_IEEE_FLOAT_)) \
|| defined (_CRAYMPP) || defined (_CRAYIEEE) \
|| defined (__i370__) || defined (__mvs__) \
|| defined (__m88000__) \
|| defined (MIPSEB) || defined (_MIPSEB) \
|| defined (__hppa) || defined (__hppa__) \
|| defined (__pyr__) \
|| defined (__ibm032__) \
|| defined (_IBMR2) || defined (_ARCH_PPC) \
|| defined (__sh__) \
|| defined (__sparc) || defined (sparc) \
|| defined (__we32k__)
#define _MPFR_NAN_BYTES { 0x7f, 0xf8, 0, 0, 0, 0, 0, 0 }
#define _MPFR_INFP_BYTES { 0x7f, 0x80, 0, 0 }
#define _MPFR_INFM_BYTES { 0xff, 0x80, 0, 0 }
#endif
#endif
#endif
#ifdef NAN
#define MPFR_DBL_NAN ((double) NAN)
#else
#ifdef _MPFR_NAN_BYTES
static union { unsigned char c[8]; double d; } __mpfr_nan
= { _MPFR_NAN_BYTES };
#define MPFR_DBL_NAN ((double) __mpfr_nan.d)
#else
#define MPFR_DBL_NAN (0./0.)
#endif
#endif
#ifdef HUGE_VAL
#define MPFR_DBL_INFP HUGE_VAL
#define MPFR_DBL_INFM (-HUGE_VAL)
#else
#ifdef _MPFR_INFP_BYTES
static union { unsigned char c[4]; float d; } __mpfr_infp
= { _MPFR_INFP_BYTES };
static union { unsigned char c[4]; float d; } __mpfr_infm
= { _MPFR_INFM_BYTES };
#define MPFR_DBL_INFP ((double) __mpfr_infp.d)
#define MPFR_DBL_INFM ((double) __mpfr_infm.d)
#else
#define MPFR_DBL_INFP (1/0.)
#define MPFR_DBL_INFM (-1/0.)
#endif
#endif
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