FreeBSD/Linux Kernel Cross Reference
sys/mips/include/float.h

     /*-
      * Copyright (c) 1989 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.
     * 4. 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.
     *
     *      from: @(#)float.h       7.1 (Berkeley) 5/8/90
     *      from: src/sys/i386/include/float.h,v 1.8 1999/08/28 00:44:11 peter
     *      JNPR: float.h,v 1.4 2006/12/02 09:53:41 katta
     * $FreeBSD: releng/8.0/sys/mips/include/float.h 178748 2008-05-03 21:04:21Z gonzo $
     */
    
    #ifndef _MACHINE_FLOAT_H_
    #define _MACHINE_FLOAT_H_ 1
    
    #include <sys/cdefs.h>
    
    __BEGIN_DECLS
    extern int __flt_rounds(void);
    __END_DECLS
    
    #define FLT_RADIX       2               /* b */
    #ifdef SOFTFLOAT
    #define FLT_ROUNDS      -1
    #else
    #define FLT_ROUNDS      __flt_rounds() /* FP addition rounds to nearest */
    #endif
    /*
     * XXXMIPS: MIPS32 has both float and double type, so set FLT_EVAL_METHOD
     *   to 0. Check it for 64-bits systems.
     */
    #define FLT_EVAL_METHOD 0
    #define DECIMAL_DIG     17
    
    #define FLT_MANT_DIG    24              /* p */
    #define FLT_EPSILON     1.19209290E-07F /* b**(1-p) */
    #define FLT_DIG         6               /* floor((p-1)*log10(b))+(b == 10) */
    #define FLT_MIN_EXP     (-125)          /* emin */
    #define FLT_MIN         1.17549435E-38F /* b**(emin-1) */
    #define FLT_MIN_10_EXP  (-37)           /* ceil(log10(b**(emin-1))) */
    #define FLT_MAX_EXP     128             /* emax */
    #define FLT_MAX         3.40282347E+38F /* (1-b**(-p))*b**emax */
    #define FLT_MAX_10_EXP  38              /* floor(log10((1-b**(-p))*b**emax)) */
    
    #define DBL_MANT_DIG    53
    #define DBL_EPSILON     2.2204460492503131E-16
    #define DBL_DIG         15
    #define DBL_MIN_EXP     (-1021)
    #define DBL_MIN         2.2250738585072014E-308
    #define DBL_MIN_10_EXP  (-307)
    #define DBL_MAX_EXP     1024
    #define DBL_MAX         1.7976931348623157E+308
    #define DBL_MAX_10_EXP  308
    
    #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
    
    #endif /* _MACHINE_FLOAT_H_ */

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