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Annotation of src/include/float.h, Revision 1.1

1.1     ! deraadt     1: /*     $OpenBSD: float.h,v 1.9 2011/08/29 13:13:21 kettenis Exp $      */
        !             2:
        !             3: /*
        !             4:  * Copyright (c) 1989 Regents of the University of California.
        !             5:  * All rights reserved.
        !             6:  *
        !             7:  * Redistribution and use in source and binary forms, with or without
        !             8:  * modification, are permitted provided that the following conditions
        !             9:  * are met:
        !            10:  * 1. Redistributions of source code must retain the above copyright
        !            11:  *    notice, this list of conditions and the following disclaimer.
        !            12:  * 2. Redistributions in binary form must reproduce the above copyright
        !            13:  *    notice, this list of conditions and the following disclaimer in the
        !            14:  *    documentation and/or other materials provided with the distribution.
        !            15:  * 3. Neither the name of the University nor the names of its contributors
        !            16:  *    may be used to endorse or promote products derived from this software
        !            17:  *    without specific prior written permission.
        !            18:  *
        !            19:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            20:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            21:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            22:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            23:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            24:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            25:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            26:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            27:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            28:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            29:  * SUCH DAMAGE.
        !            30:  */
        !            31:
        !            32: #ifndef _FLOAT_H_
        !            33: #define _FLOAT_H_
        !            34:
        !            35: #include <sys/cdefs.h>
        !            36: #include <machine/_float.h>
        !            37:
        !            38: __BEGIN_DECLS
        !            39: int __flt_rounds(void);
        !            40: __END_DECLS
        !            41:
        !            42: #define FLT_RADIX      __FLT_RADIX             /* b */
        !            43: #define FLT_ROUNDS     __FLT_ROUNDS
        !            44:
        !            45: #if __ISO_C_VISIBLE >= 1999
        !            46: #define FLT_EVAL_METHOD        __FLT_EVAL_METHOD       /* long double */
        !            47: #endif
        !            48:
        !            49: #define FLT_MANT_DIG   __FLT_MANT_DIG          /* p */
        !            50: #define FLT_EPSILON    __FLT_EPSILON           /* b**(1-p) */
        !            51: #ifndef FLT_DIG
        !            52: #define FLT_DIG                __FLT_DIG               /* floor((p-1)*log10(b))+(b == 10) */
        !            53: #endif
        !            54: #define FLT_MIN_EXP    __FLT_MIN_EXP           /* emin */
        !            55: #ifndef FLT_MIN
        !            56: #define FLT_MIN                __FLT_MIN               /* b**(emin-1) */
        !            57: #endif
        !            58: #define FLT_MIN_10_EXP __FLT_MIN_10_EXP        /* ceil(log10(b**(emin-1))) */
        !            59: #define FLT_MAX_EXP    __FLT_MAX_EXP           /* emax */
        !            60: #ifndef FLT_MAX
        !            61: #define FLT_MAX                __FLT_MAX               /* (1-b**(-p))*b**emax */
        !            62: #endif
        !            63: #define FLT_MAX_10_EXP __FLT_MAX_10_EXP        /* floor(log10((1-b**(-p))*b**emax)) */
        !            64:
        !            65: #define DBL_MANT_DIG   __DBL_MANT_DIG
        !            66: #define DBL_EPSILON    __DBL_EPSILON
        !            67: #ifndef DBL_DIG
        !            68: #define DBL_DIG                __DBL_DIG
        !            69: #endif
        !            70: #define DBL_MIN_EXP    __DBL_MIN_EXP
        !            71: #ifndef DBL_MIN
        !            72: #define DBL_MIN                __DBL_MIN
        !            73: #endif
        !            74: #define DBL_MIN_10_EXP __DBL_MIN_10_EXP
        !            75: #define DBL_MAX_EXP    __DBL_MAX_EXP
        !            76: #ifndef DBL_MAX
        !            77: #define DBL_MAX                __DBL_MAX
        !            78: #endif
        !            79: #define DBL_MAX_10_EXP __DBL_MAX_10_EXP
        !            80:
        !            81: #define LDBL_MANT_DIG  __LDBL_MANT_DIG
        !            82: #define LDBL_EPSILON   __LDBL_EPSILON
        !            83: #define LDBL_DIG       __LDBL_DIG
        !            84: #define LDBL_MIN_EXP   __LDBL_MIN_EXP
        !            85: #define LDBL_MIN       __LDBL_MIN
        !            86: #define LDBL_MIN_10_EXP        __LDBL_MIN_10_EXP
        !            87: #define LDBL_MAX_EXP   __LDBL_MAX_EXP
        !            88: #define LDBL_MAX       __LDBL_MAX
        !            89: #define LDBL_MAX_10_EXP        __LDBL_MAX_10_EXP
        !            90:
        !            91: #if __ISO_C_VISIBLE >= 1999
        !            92: #define DECIMAL_DIG    __DECIMAL_DIG
        !            93: #endif
        !            94:
        !            95: #endif /* _FLOAT_H_ */