LCOM1920-T02G10

/*        $NetBSD: float_ieee754.h,v 1.11 2013/06/18 20:17:19 christos Exp $        */

/*

 * Copyright (c) 1992, 1993

 *        The Regents of the University of California.  All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 * 3. Neither the name of the University nor the names of its contributors

 *    may be used to endorse or promote products derived from this software

 *    without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND

 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE

 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

 * SUCH DAMAGE.

 *

 *        @(#)float.h        8.1 (Berkeley) 6/10/93

 */

/*

 * NOTICE: This is not a standalone file.  To use it, #include it in

 * your port's float.h header.

 */

#ifndef _SYS_FLOAT_IEEE754_H_

#define _SYS_FLOAT_IEEE754_H_

#include <sys/cdefs.h>

#include <sys/featuretest.h>

/*

 * feature macro to test for IEEE754

 */

#define _FLOAT_IEEE754        1

#if !defined(__ASSEMBLER__) && !defined(FLT_ROUNDS)

__BEGIN_DECLS

extern int __flt_rounds(void);

__END_DECLS

#define FLT_ROUNDS        __flt_rounds()

#endif

#if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \

    !defined(_XOPEN_SOURCE) || \

    ((__STDC_VERSION__ - 0) >= 199901L) || \

    ((_POSIX_C_SOURCE - 0) >= 200112L) || \

    ((_XOPEN_SOURCE  - 0) >= 600) || \

    defined(_ISOC99_SOURCE) || defined(_NETBSD_SOURCE)

#ifndef FLT_EVAL_METHOD

#if __GNUC_PREREQ__(3, 3)

#define FLT_EVAL_METHOD        __FLT_EVAL_METHOD__

#endif /* GCC >= 3.3 */

#endif /* defined(FLT_EVAL_METHOD) */

#endif /* !defined(_ANSI_SOURCE) && ... */

#if __GNUC_PREREQ__(3, 3)

/*

 * GCC 3,3 and later provide builtins for the FLT, DBL, and LDBL constants.

 */

#define FLT_RADIX        __FLT_RADIX__

#define FLT_MANT_DIG        __FLT_MANT_DIG__

#define FLT_EPSILON        __FLT_EPSILON__

#define FLT_DIG                __FLT_DIG__

#define FLT_MIN_EXP        __FLT_MIN_EXP__

#define FLT_MIN                __FLT_MIN__

#define FLT_MIN_10_EXP        __FLT_MIN_10_EXP__

#define FLT_MAX_EXP        __FLT_MAX_EXP__

#define FLT_MAX                __FLT_MAX__

#define FLT_MAX_10_EXP        __FLT_MAX_10_EXP__

#define DBL_MANT_DIG        __DBL_MANT_DIG__

#define DBL_EPSILON        __DBL_EPSILON__

#define DBL_DIG                __DBL_DIG__

#define DBL_MIN_EXP        __DBL_MIN_EXP__

#define DBL_MIN                __DBL_MIN__

#define DBL_MIN_10_EXP        __DBL_MIN_10_EXP__

#define DBL_MAX_EXP        __DBL_MAX_EXP__

#define DBL_MAX                __DBL_MAX__

#define DBL_MAX_10_EXP        __DBL_MAX_10_EXP__

#else /* GCC < 3.3 */

#define FLT_RADIX        2                /* b */

#define FLT_MANT_DIG        24                /* p */

#define FLT_DIG                6                /* floor((p-1)*log10(b))+(b == 10) */

#define FLT_MIN_EXP        (-125)                /* emin */

#define FLT_MIN_10_EXP        (-37)                /* ceil(log10(b**(emin-1))) */

#define FLT_MAX_EXP        128                /* emax */

#define FLT_MAX_10_EXP        38                /* floor(log10((1-b**(-p))*b**emax)) */

#if __STDC_VERSION__ >= 199901L

#define FLT_EPSILON        0x1.0p-23F

#define FLT_MIN                0x1.0p-126F

#define FLT_MAX                0x1.fffffep+127F

#else

#define FLT_EPSILON        1.19209290E-7F        /* b**(1-p) */

#define FLT_MIN                1.17549435E-38F        /* b**(emin-1) */

#define FLT_MAX                3.40282347E+38F        /* (1-b**(-p))*b**emax */

#endif

#define DBL_MANT_DIG        53

#define DBL_DIG                15

#define DBL_MIN_EXP        (-1021)

#define DBL_MIN_10_EXP        (-307)

#define DBL_MAX_EXP        1024

#define DBL_MAX_10_EXP        308

#if __STDC_VERSION__ >= 199901L

#define DBL_EPSILON        0x1.0p-52

#define DBL_MIN                0x1.0p-1022

#define DBL_MAX                0x1.fffffffffffffp+1023

#else

#define DBL_EPSILON        2.2204460492503131E-16

#define DBL_MIN                2.2250738585072014E-308

#define DBL_MAX                1.7976931348623157E+308

#endif

#endif /* GCC < 3.3 */

/*

 * If no extended-precision type is defined by the machine-dependent

 * header including this, default to `long double' being double-precision.

 */

#ifndef LDBL_MANT_DIG

#define LDBL_MANT_DIG        DBL_MANT_DIG

#define LDBL_EPSILON        DBL_EPSILON

#define LDBL_DIG        DBL_DIG

#define LDBL_MIN_EXP        DBL_MIN_EXP

#define LDBL_MIN        DBL_MIN

#define LDBL_MIN_10_EXP        DBL_MIN_10_EXP

#define LDBL_MAX_EXP        DBL_MAX_EXP

#define LDBL_MAX        DBL_MAX

#define LDBL_MAX_10_EXP        DBL_MAX_10_EXP

#if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \

    !defined(_XOPEN_SOURCE) || \

    ((__STDC_VERSION__ - 0) >= 199901L) || \

    ((_POSIX_C_SOURCE - 0) >= 200112L) || \

    ((_XOPEN_SOURCE  - 0) >= 600) || \

    defined(_ISOC99_SOURCE) || defined(_NETBSD_SOURCE)

#if __GNUC_PREREQ__(3, 3)

#define DECIMAL_DIG        __DECIMAL_DIG__

#else

#define DECIMAL_DIG        17                /* ceil((1+p*log10(b))-(b==10) */

#endif

#endif /* !defined(_ANSI_SOURCE) && ... */

#endif /* LDBL_MANT_DIG */

#endif        /* _SYS_FLOAT_IEEE754_H_ */