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float.h revision 1.4
      1 /*
      2  * Copyright (c) 1989 Regents of the University of California.
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  * 3. All advertising materials mentioning features or use of this software
     14  *    must display the following acknowledgement:
     15  *	This product includes software developed by the University of
     16  *	California, Berkeley and its contributors.
     17  * 4. Neither the name of the University nor the names of its contributors
     18  *    may be used to endorse or promote products derived from this software
     19  *    without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31  * SUCH DAMAGE.
     32  *
     33  *	from: @(#)float.h	7.1 (Berkeley) 5/8/90
     34  *	$Id: float.h,v 1.4 1993/07/09 09:39:32 cgd Exp $
     35  */
     36 
     37 #define FLT_RADIX	2		/* b */
     38 #define FLT_ROUNDS	1		/* FP addition rounds to nearest */
     39 
     40 #define FLT_MANT_DIG	24		/* p */
     41 #define FLT_EPSILON	1.19209290E-07F	/* b**(1-p) */
     42 #define FLT_DIG		6		/* floor((p-1)*log10(b))+(b == 10) */
     43 #define FLT_MIN_EXP	(-125)		/* emin */
     44 #define FLT_MIN		1.17549435E-38F	/* b**(emin-1) */
     45 #define FLT_MIN_10_EXP	(-37)		/* ceil(log10(b**(emin-1))) */
     46 #define FLT_MAX_EXP	128		/* emax */
     47 #define FLT_MAX		3.40282347E+38F	/* (1-b**(-p))*b**emax */
     48 #define FLT_MAX_10_EXP	38		/* floor(log10((1-b**(-p))*b**emax)) */
     49 
     50 #define DBL_MANT_DIG	53
     51 #define DBL_EPSILON	2.2204460492503131E-16
     52 #define DBL_DIG		15
     53 #define DBL_MIN_EXP	(-1021)
     54 #define DBL_MIN		2.2250738585072014E-308
     55 #define DBL_MIN_10_EXP	(-307)
     56 #define DBL_MAX_EXP	1024
     57 #define DBL_MAX		1.7976931348623157E+308
     58 #define DBL_MAX_10_EXP	308
     59 
     60 #define LDBL_MANT_DIG	DBL_MANT_DIG
     61 #define LDBL_EPSILON	DBL_EPSILON
     62 #define LDBL_DIG	DBL_DIG
     63 #define LDBL_MIN_EXP	DBL_MIN_EXP
     64 #define LDBL_MIN	DBL_MIN
     65 #define LDBL_MIN_10_EXP	DBL_MIN_10_EXP
     66 #define LDBL_MAX_EXP	DBL_MAX_EXP
     67 #define LDBL_MAX	DBL_MAX
     68 #define LDBL_MAX_10_EXP	DBL_MAX_10_EXP
     69