1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* Copyright (c) 1988 AT&T */ 23 /* All Rights Reserved */ 24 25 26 /* 27 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 28 * Use is subject to license terms. 29 */ 30 31 #ifndef _FLOAT_H 32 #define _FLOAT_H 33 34 #pragma ident "%Z%%M% %I% %E% SMI" 35 36 #include <sys/feature_tests.h> 37 38 #ifdef __cplusplus 39 extern "C" { 40 #endif 41 42 #if defined(__sparc) 43 44 #if defined(__STDC__) 45 extern int __flt_rounds(void); 46 #else /* defined(__STDC__) */ 47 extern int __flt_rounds(); 48 #endif /* defined(__STDC__) */ 49 #define FLT_ROUNDS __flt_rounds() 50 51 #else /* defined(__sparc) */ 52 53 #if defined(__STDC__) 54 extern int __fltrounds(void); 55 #else /* defined (__STDC__) */ 56 extern int __fltrounds(); 57 #endif /* defined(__STDC__) */ 58 #if defined(__amd64) 59 #define FLT_ROUNDS __fltrounds() 60 #else /* defined(__amd64) */ 61 extern int __flt_rounds; 62 #define FLT_ROUNDS __flt_rounds 63 #endif /* defined(__amd64) */ 64 #endif /* defined(__sparc) */ 65 66 /* Introduced in ISO/IEC 9899:1999 standard */ 67 #if defined(__EXTENSIONS__) || defined(_STDC_C99) || \ 68 (!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) 69 #if defined(__FLT_EVAL_METHOD__) 70 #define FLT_EVAL_METHOD __FLT_EVAL_METHOD__ 71 #else 72 #define FLT_EVAL_METHOD -1 73 #endif /* defined(__FLT_EVAL_METHOD__) */ 74 #endif /* defined(__EXTENSIONS__) || defined(_STDC_C99)... */ 75 76 #define FLT_RADIX 2 77 #define FLT_MANT_DIG 24 78 #define FLT_EPSILON 1.1920928955078125000000E-07F 79 #define FLT_DIG 6 80 #define FLT_MIN_EXP (-125) 81 #define FLT_MIN 1.1754943508222875079688E-38F 82 #define FLT_MIN_10_EXP (-37) 83 #define FLT_MAX_EXP (+128) 84 #define FLT_MAX 3.4028234663852885981170E+38F 85 #define FLT_MAX_10_EXP (+38) 86 87 #define DBL_MANT_DIG 53 88 #define DBL_EPSILON 2.2204460492503130808473E-16 89 #define DBL_DIG 15 90 #define DBL_MIN_EXP (-1021) 91 #define DBL_MIN 2.2250738585072013830903E-308 92 #define DBL_MIN_10_EXP (-307) 93 #define DBL_MAX_EXP (+1024) 94 #define DBL_MAX 1.7976931348623157081452E+308 95 #define DBL_MAX_10_EXP (+308) 96 97 /* Introduced in ISO/IEC 9899:1999 standard */ 98 #if defined(__EXTENSIONS__) || defined(_STDC_C99) || \ 99 (!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) 100 #if defined(__sparc) 101 #define DECIMAL_DIG 36 102 #elif defined(__i386) || defined(__amd64) 103 #define DECIMAL_DIG 21 104 #endif 105 #endif /* defined(__EXTENSIONS__) || defined(_STDC_C99)... */ 106 107 108 #if defined(__i386) || defined(__amd64) 109 110 /* Follows IEEE standards for 80-bit floating point */ 111 #define LDBL_MANT_DIG 64 112 #define LDBL_EPSILON 1.0842021724855044340075E-19L 113 #define LDBL_DIG 18 114 #define LDBL_MIN_EXP (-16381) 115 #define LDBL_MIN 3.3621031431120935062627E-4932L 116 #define LDBL_MIN_10_EXP (-4931) 117 #define LDBL_MAX_EXP (+16384) 118 #define LDBL_MAX 1.1897314953572317650213E+4932L 119 #define LDBL_MAX_10_EXP (+4932) 120 121 #elif defined(__sparc) 122 123 /* Follows IEEE standards for 128-bit floating point */ 124 #define LDBL_MANT_DIG 113 125 #define LDBL_EPSILON 1.925929944387235853055977942584927319E-34L 126 #define LDBL_DIG 33 127 #define LDBL_MIN_EXP (-16381) 128 #define LDBL_MIN 3.362103143112093506262677817321752603E-4932L 129 #define LDBL_MIN_10_EXP (-4931) 130 #define LDBL_MAX_EXP (+16384) 131 #define LDBL_MAX 1.189731495357231765085759326628007016E+4932L 132 #define LDBL_MAX_10_EXP (+4932) 133 134 #else 135 136 #error "Unknown architecture!" 137 138 #endif 139 140 141 #ifdef __cplusplus 142 } 143 #endif 144 145 #endif /* _FLOAT_H */ 146