1 /* $NetBSD: float.h,v 1.10 2005/12/11 12:19:34 christos 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 * @(#)float.h 7.2 (Berkeley) 6/28/90 32 */ 33 34 #ifndef _VAX_FLOAT_H_ 35 #define _VAX_FLOAT_H_ 36 37 #include <sys/cdefs.h> 38 #include <sys/featuretest.h> 39 40 #define FLT_RADIX 2 /* b */ 41 #define FLT_ROUNDS 1 /* FP addition rounds to nearest */ 42 43 #if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \ 44 !defined(_XOPEN_SOURCE) || \ 45 ((__STDC_VERSION__ - 0) >= 199901L) || \ 46 ((_POSIX_C_SOURCE - 0) >= 200112L) || \ 47 ((_XOPEN_SOURCE - 0) >= 600) || \ 48 defined(_ISOC99_SOURCE) || defined(_NETBSD_SOURCE) 49 #if __GNUC_PREREQ__(3, 3) 50 #define FLT_EVAL_METHOD __FLT_EVAL_METHOD__ 51 #else 52 #define FLT_EVAL_METHOD 0 /* evaluate all operations and 53 constants just to the range and 54 precision of the type */ 55 #endif /* GCC >= 3.3 */ 56 #endif /* !defined(_ANSI_SOURCE) && ... */ 57 58 #define FLT_MANT_DIG 24 /* p */ 59 #define FLT_EPSILON 1.19209290E-7F /* b**(1-p) */ 60 #define FLT_DIG 6 /* floor((p-1)*log10(b))+(b == 10) */ 61 #define FLT_MIN_EXP (-127) /* emin */ 62 #define FLT_MIN 2.93873588E-39F /* b**(emin-1) */ 63 #define FLT_MIN_10_EXP (-38) /* ceil(log10(b**(emin-1))) */ 64 #define FLT_MAX_EXP 127 /* emax */ 65 #define FLT_MAX 1.70141173E+38F /* (1-b**(-p))*b**emax */ 66 #define FLT_MAX_10_EXP 38 /* floor(log10((1-b**(-p))*b**emax)) */ 67 68 #define DBL_MANT_DIG 56 69 #define DBL_EPSILON 2.77555756156289135E-17 70 #define DBL_DIG 16 71 #define DBL_MIN_EXP (-127) 72 #define DBL_MIN 2.938735877055718770E-39 73 #define DBL_MIN_10_EXP (-38) 74 #define DBL_MAX_EXP 127 75 #define DBL_MAX 1.701411834604692294E+38 76 #define DBL_MAX_10_EXP 38 77 78 #define LDBL_MANT_DIG DBL_MANT_DIG 79 #define LDBL_EPSILON DBL_EPSILON 80 #define LDBL_DIG DBL_DIG 81 #define LDBL_MIN_EXP DBL_MIN_EXP 82 #define LDBL_MIN DBL_MIN 83 #define LDBL_MIN_10_EXP DBL_MIN_10_EXP 84 #define LDBL_MAX_EXP DBL_MAX_EXP 85 #define LDBL_MAX DBL_MAX 86 #define LDBL_MAX_10_EXP DBL_MAX_10_EXP 87 88 #if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \ 89 !defined(_XOPEN_SOURCE) || \ 90 ((__STDC_VERSION__ - 0) >= 199901L) || \ 91 ((_POSIX_C_SOURCE - 0) >= 200112L) || \ 92 ((_XOPEN_SOURCE - 0) >= 600) || \ 93 defined(_ISOC99_SOURCE) || defined(_NETBSD_SOURCE) 94 #define DECIMAL_DIG 18 /* ceil((1+p*log10(b))-(b==10) */ 95 #endif 96 #endif /* _VAX_FLOAT_H_ */ 97