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 2014 Garrett D'Amore <garrett@damore.org> 28 * 29 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 30 * Use is subject to license terms. 31 */ 32 33 #ifndef _FLOAT_H 34 #define _FLOAT_H 35 36 #include <sys/feature_tests.h> 37 38 #ifdef __cplusplus 39 extern "C" { 40 #endif 41 42 #if defined(__sparc) 43 44 extern int __flt_rounds(void); 45 #define FLT_ROUNDS __flt_rounds() 46 47 #else /* defined(__sparc) */ 48 49 extern int __fltrounds(void); 50 51 #if defined(__amd64) 52 #define FLT_ROUNDS __fltrounds() 53 #else /* defined(__amd64) */ 54 extern int __flt_rounds; 55 #define FLT_ROUNDS __flt_rounds 56 #endif /* defined(__amd64) */ 57 #endif /* defined(__sparc) */ 58 59 /* Introduced in ISO/IEC 9899:1999 standard */ 60 #if defined(__EXTENSIONS__) || defined(_STDC_C99) || \ 61 (!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) 62 #if defined(__FLT_EVAL_METHOD__) 63 #define FLT_EVAL_METHOD __FLT_EVAL_METHOD__ 64 #else 65 #define FLT_EVAL_METHOD -1 66 #endif /* defined(__FLT_EVAL_METHOD__) */ 67 #endif /* defined(__EXTENSIONS__) || defined(_STDC_C99)... */ 68 69 #define FLT_RADIX 2 70 #define FLT_MANT_DIG 24 71 #define FLT_EPSILON 1.1920928955078125000000E-07F 72 #define FLT_DIG 6 73 #define FLT_MIN_EXP (-125) 74 #define FLT_MIN 1.1754943508222875079688E-38F 75 #define FLT_MIN_10_EXP (-37) 76 #define FLT_MAX_EXP (+128) 77 #define FLT_MAX 3.4028234663852885981170E+38F 78 #define FLT_MAX_10_EXP (+38) 79 80 #define DBL_MANT_DIG 53 81 #define DBL_EPSILON 2.2204460492503130808473E-16 82 #define DBL_DIG 15 83 #define DBL_MIN_EXP (-1021) 84 #define DBL_MIN 2.2250738585072013830903E-308 85 #define DBL_MIN_10_EXP (-307) 86 #define DBL_MAX_EXP (+1024) 87 #define DBL_MAX 1.7976931348623157081452E+308 88 #define DBL_MAX_10_EXP (+308) 89 90 /* Introduced in ISO/IEC 9899:1999 standard */ 91 #if defined(__EXTENSIONS__) || defined(_STDC_C99) || \ 92 (!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) 93 #if defined(__sparc) 94 #define DECIMAL_DIG 36 95 #elif defined(__i386) || defined(__amd64) 96 #define DECIMAL_DIG 21 97 #endif 98 #endif /* defined(__EXTENSIONS__) || defined(_STDC_C99)... */ 99 100 101 #if defined(__i386) || defined(__amd64) 102 103 /* Follows IEEE standards for 80-bit floating point */ 104 #define LDBL_MANT_DIG 64 105 #define LDBL_EPSILON 1.0842021724855044340075E-19L 106 #define LDBL_DIG 18 107 #define LDBL_MIN_EXP (-16381) 108 #define LDBL_MIN 3.3621031431120935062627E-4932L 109 #define LDBL_MIN_10_EXP (-4931) 110 #define LDBL_MAX_EXP (+16384) 111 #define LDBL_MAX 1.1897314953572317650213E+4932L 112 #define LDBL_MAX_10_EXP (+4932) 113 114 #elif defined(__sparc) 115 116 /* Follows IEEE standards for 128-bit floating point */ 117 #define LDBL_MANT_DIG 113 118 #define LDBL_EPSILON 1.925929944387235853055977942584927319E-34L 119 #define LDBL_DIG 33 120 #define LDBL_MIN_EXP (-16381) 121 #define LDBL_MIN 3.362103143112093506262677817321752603E-4932L 122 #define LDBL_MIN_10_EXP (-4931) 123 #define LDBL_MAX_EXP (+16384) 124 #define LDBL_MAX 1.189731495357231765085759326628007016E+4932L 125 #define LDBL_MAX_10_EXP (+4932) 126 127 #else 128 129 #error "Unknown architecture!" 130 131 #endif 132 133 134 #ifdef __cplusplus 135 } 136 #endif 137 138 #endif /* _FLOAT_H */ 139