/*
 * 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 2014 Garrett D'Amore <garrett@damore.org>
 *
 * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#ifndef _FLOAT_H
#define _FLOAT_H

#include <sys/feature_tests.h>

#ifdef  __cplusplus
extern "C" {
#endif

#if defined(__sparc)

extern int __flt_rounds(void);
#define FLT_ROUNDS      __flt_rounds()

#else /* defined(__sparc) */

extern int __fltrounds(void);

#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 */