float.h revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/* Copyright (c) 1988 AT&T */
/* All Rights Reserved */
/*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _FLOAT_H
#define _FLOAT_H
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/feature_tests.h>
#ifdef __cplusplus
extern "C" {
#endif
#if defined(__sparc)
#if defined(__STDC__)
extern int __flt_rounds(void);
#else /* defined(__STDC__) */
extern int __flt_rounds();
#endif /* defined(__STDC__) */
#define FLT_ROUNDS __flt_rounds()
#else /* defined(__sparc) */
#if defined(__STDC__)
extern int __fltrounds(void);
#else /* defined (__STDC__) */
extern int __fltrounds();
#endif /* defined(__STDC__) */
#if defined(__amd64)
#define FLT_ROUNDS __fltrounds()
#else /* defined(__amd64) */
extern int __flt_rounds;
#define FLT_ROUNDS __flt_rounds
#endif /* defined(__amd64) */
#endif /* defined(__sparc) */
/* Introduced in ISO/IEC 9899:1999 standard */
#if defined(__EXTENSIONS__) || defined(_STDC_C99) || \
(!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX))
#if defined(__FLT_EVAL_METHOD__)
#define FLT_EVAL_METHOD __FLT_EVAL_METHOD__
#else
#define FLT_EVAL_METHOD -1
#endif /* defined(__FLT_EVAL_METHOD__) */
#endif /* defined(__EXTENSIONS__) || defined(_STDC_C99)... */
#define FLT_RADIX 2
#define FLT_MANT_DIG 24
#define FLT_EPSILON 1.1920928955078125000000E-07F
#define FLT_DIG 6
#define FLT_MIN_EXP (-125)
#define FLT_MIN 1.1754943508222875079688E-38F
#define FLT_MIN_10_EXP (-37)
#define FLT_MAX_EXP (+128)
#define FLT_MAX 3.4028234663852885981170E+38F
#define FLT_MAX_10_EXP (+38)
#define DBL_MANT_DIG 53
#define DBL_EPSILON 2.2204460492503130808473E-16
#define DBL_DIG 15
#define DBL_MIN_EXP (-1021)
#define DBL_MIN 2.2250738585072013830903E-308
#define DBL_MIN_10_EXP (-307)
#define DBL_MAX_EXP (+1024)
#define DBL_MAX 1.7976931348623157081452E+308
#define DBL_MAX_10_EXP (+308)
/* Introduced in ISO/IEC 9899:1999 standard */
#if defined(__EXTENSIONS__) || defined(_STDC_C99) || \
(!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX))
#if defined(__sparc)
#define DECIMAL_DIG 36
#elif defined(__i386) || defined(__amd64)
#define DECIMAL_DIG 21
#endif
#endif /* defined(__EXTENSIONS__) || defined(_STDC_C99)... */
#if defined(__i386) || defined(__amd64)
/* Follows IEEE standards for 80-bit floating point */
#define LDBL_MANT_DIG 64
#define LDBL_EPSILON 1.0842021724855044340075E-19L
#define LDBL_DIG 18
#define LDBL_MIN_EXP (-16381)
#define LDBL_MIN 3.3621031431120935062627E-4932L
#define LDBL_MIN_10_EXP (-4931)
#define LDBL_MAX_EXP (+16384)
#define LDBL_MAX 1.1897314953572317650213E+4932L
#define LDBL_MAX_10_EXP (+4932)
#elif defined(__sparc)
/* Follows IEEE standards for 128-bit floating point */
#define LDBL_MANT_DIG 113
#define LDBL_EPSILON 1.925929944387235853055977942584927319E-34L
#define LDBL_DIG 33
#define LDBL_MIN_EXP (-16381)
#define LDBL_MIN 3.362103143112093506262677817321752603E-4932L
#define LDBL_MIN_10_EXP (-4931)
#define LDBL_MAX_EXP (+16384)
#define LDBL_MAX 1.189731495357231765085759326628007016E+4932L
#define LDBL_MAX_10_EXP (+4932)
#else
#error "Unknown architecture!"
#endif
#ifdef __cplusplus
}
#endif
#endif /* _FLOAT_H */