1 1.1 joerg /*===---- float.h - Characteristics of floating point types ----------------=== 2 1.1 joerg * 3 1.1 joerg * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 1.1 joerg * See https://llvm.org/LICENSE.txt for license information. 5 1.1 joerg * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 1.1 joerg * 7 1.1 joerg *===-----------------------------------------------------------------------=== 8 1.1 joerg */ 9 1.1 joerg 10 1.1 joerg #ifndef __CLANG_FLOAT_H 11 1.1 joerg #define __CLANG_FLOAT_H 12 1.1 joerg 13 1.1 joerg /* If we're on MinGW, fall back to the system's float.h, which might have 14 1.1 joerg * additional definitions provided for Windows. 15 1.1 joerg * For more details see http://msdn.microsoft.com/en-us/library/y0ybw9fy.aspx 16 1.1 joerg * 17 1.1 joerg * Also fall back on Darwin to allow additional definitions and 18 1.1 joerg * implementation-defined values. 19 1.1 joerg */ 20 1.1 joerg #if (defined(__APPLE__) || (defined(__MINGW32__) || defined(_MSC_VER))) && \ 21 1.1 joerg __STDC_HOSTED__ && __has_include_next(<float.h>) 22 1.1 joerg 23 1.1 joerg /* Prior to Apple's 10.7 SDK, float.h SDK header used to apply an extra level 24 1.1 joerg * of #include_next<float.h> to keep Metrowerks compilers happy. Avoid this 25 1.1 joerg * extra indirection. 26 1.1 joerg */ 27 1.1 joerg #ifdef __APPLE__ 28 1.1 joerg #define _FLOAT_H_ 29 1.1 joerg #endif 30 1.1 joerg 31 1.1 joerg # include_next <float.h> 32 1.1 joerg 33 1.1 joerg /* Undefine anything that we'll be redefining below. */ 34 1.1 joerg # undef FLT_EVAL_METHOD 35 1.1 joerg # undef FLT_ROUNDS 36 1.1 joerg # undef FLT_RADIX 37 1.1 joerg # undef FLT_MANT_DIG 38 1.1 joerg # undef DBL_MANT_DIG 39 1.1 joerg # undef LDBL_MANT_DIG 40 1.1 joerg # if __STDC_VERSION__ >= 199901L || !defined(__STRICT_ANSI__) || __cplusplus >= 201103L 41 1.1 joerg # undef DECIMAL_DIG 42 1.1 joerg # endif 43 1.1 joerg # undef FLT_DIG 44 1.1 joerg # undef DBL_DIG 45 1.1 joerg # undef LDBL_DIG 46 1.1 joerg # undef FLT_MIN_EXP 47 1.1 joerg # undef DBL_MIN_EXP 48 1.1 joerg # undef LDBL_MIN_EXP 49 1.1 joerg # undef FLT_MIN_10_EXP 50 1.1 joerg # undef DBL_MIN_10_EXP 51 1.1 joerg # undef LDBL_MIN_10_EXP 52 1.1 joerg # undef FLT_MAX_EXP 53 1.1 joerg # undef DBL_MAX_EXP 54 1.1 joerg # undef LDBL_MAX_EXP 55 1.1 joerg # undef FLT_MAX_10_EXP 56 1.1 joerg # undef DBL_MAX_10_EXP 57 1.1 joerg # undef LDBL_MAX_10_EXP 58 1.1 joerg # undef FLT_MAX 59 1.1 joerg # undef DBL_MAX 60 1.1 joerg # undef LDBL_MAX 61 1.1 joerg # undef FLT_EPSILON 62 1.1 joerg # undef DBL_EPSILON 63 1.1 joerg # undef LDBL_EPSILON 64 1.1 joerg # undef FLT_MIN 65 1.1 joerg # undef DBL_MIN 66 1.1 joerg # undef LDBL_MIN 67 1.1 joerg # if __STDC_VERSION__ >= 201112L || !defined(__STRICT_ANSI__) || __cplusplus >= 201703L 68 1.1 joerg # undef FLT_TRUE_MIN 69 1.1 joerg # undef DBL_TRUE_MIN 70 1.1 joerg # undef LDBL_TRUE_MIN 71 1.1 joerg # undef FLT_DECIMAL_DIG 72 1.1 joerg # undef DBL_DECIMAL_DIG 73 1.1 joerg # undef LDBL_DECIMAL_DIG 74 1.1 joerg # undef FLT_HAS_SUBNORM 75 1.1 joerg # undef DBL_HAS_SUBNORM 76 1.1 joerg # undef LDBL_HAS_SUBNORM 77 1.1 joerg # endif 78 1.1 joerg #endif 79 1.1 joerg 80 1.1 joerg /* Characteristics of floating point types, C99 5.2.4.2.2 */ 81 1.1 joerg 82 1.1 joerg #define FLT_EVAL_METHOD __FLT_EVAL_METHOD__ 83 1.1 joerg #define FLT_ROUNDS (__builtin_flt_rounds()) 84 1.1 joerg #define FLT_RADIX __FLT_RADIX__ 85 1.1 joerg 86 1.1 joerg #define FLT_MANT_DIG __FLT_MANT_DIG__ 87 1.1 joerg #define DBL_MANT_DIG __DBL_MANT_DIG__ 88 1.1 joerg #define LDBL_MANT_DIG __LDBL_MANT_DIG__ 89 1.1 joerg 90 1.1 joerg #if __STDC_VERSION__ >= 199901L || !defined(__STRICT_ANSI__) || __cplusplus >= 201103L 91 1.1 joerg # define DECIMAL_DIG __DECIMAL_DIG__ 92 1.1 joerg #endif 93 1.1 joerg 94 1.1 joerg #define FLT_DIG __FLT_DIG__ 95 1.1 joerg #define DBL_DIG __DBL_DIG__ 96 1.1 joerg #define LDBL_DIG __LDBL_DIG__ 97 1.1 joerg 98 1.1 joerg #define FLT_MIN_EXP __FLT_MIN_EXP__ 99 1.1 joerg #define DBL_MIN_EXP __DBL_MIN_EXP__ 100 1.1 joerg #define LDBL_MIN_EXP __LDBL_MIN_EXP__ 101 1.1 joerg 102 1.1 joerg #define FLT_MIN_10_EXP __FLT_MIN_10_EXP__ 103 1.1 joerg #define DBL_MIN_10_EXP __DBL_MIN_10_EXP__ 104 1.1 joerg #define LDBL_MIN_10_EXP __LDBL_MIN_10_EXP__ 105 1.1 joerg 106 1.1 joerg #define FLT_MAX_EXP __FLT_MAX_EXP__ 107 1.1 joerg #define DBL_MAX_EXP __DBL_MAX_EXP__ 108 1.1 joerg #define LDBL_MAX_EXP __LDBL_MAX_EXP__ 109 1.1 joerg 110 1.1 joerg #define FLT_MAX_10_EXP __FLT_MAX_10_EXP__ 111 1.1 joerg #define DBL_MAX_10_EXP __DBL_MAX_10_EXP__ 112 1.1 joerg #define LDBL_MAX_10_EXP __LDBL_MAX_10_EXP__ 113 1.1 joerg 114 1.1 joerg #define FLT_MAX __FLT_MAX__ 115 1.1 joerg #define DBL_MAX __DBL_MAX__ 116 1.1 joerg #define LDBL_MAX __LDBL_MAX__ 117 1.1 joerg 118 1.1 joerg #define FLT_EPSILON __FLT_EPSILON__ 119 1.1 joerg #define DBL_EPSILON __DBL_EPSILON__ 120 1.1 joerg #define LDBL_EPSILON __LDBL_EPSILON__ 121 1.1 joerg 122 1.1 joerg #define FLT_MIN __FLT_MIN__ 123 1.1 joerg #define DBL_MIN __DBL_MIN__ 124 1.1 joerg #define LDBL_MIN __LDBL_MIN__ 125 1.1 joerg 126 1.1 joerg #if __STDC_VERSION__ >= 201112L || !defined(__STRICT_ANSI__) || __cplusplus >= 201703L 127 1.1 joerg # define FLT_TRUE_MIN __FLT_DENORM_MIN__ 128 1.1 joerg # define DBL_TRUE_MIN __DBL_DENORM_MIN__ 129 1.1 joerg # define LDBL_TRUE_MIN __LDBL_DENORM_MIN__ 130 1.1 joerg # define FLT_DECIMAL_DIG __FLT_DECIMAL_DIG__ 131 1.1 joerg # define DBL_DECIMAL_DIG __DBL_DECIMAL_DIG__ 132 1.1 joerg # define LDBL_DECIMAL_DIG __LDBL_DECIMAL_DIG__ 133 1.1 joerg # define FLT_HAS_SUBNORM __FLT_HAS_DENORM__ 134 1.1 joerg # define DBL_HAS_SUBNORM __DBL_HAS_DENORM__ 135 1.1 joerg # define LDBL_HAS_SUBNORM __LDBL_HAS_DENORM__ 136 1.1 joerg #endif 137 1.1 joerg 138 1.1 joerg #ifdef __STDC_WANT_IEC_60559_TYPES_EXT__ 139 1.1 joerg # define FLT16_MANT_DIG __FLT16_MANT_DIG__ 140 1.1 joerg # define FLT16_DECIMAL_DIG __FLT16_DECIMAL_DIG__ 141 1.1 joerg # define FLT16_DIG __FLT16_DIG__ 142 1.1 joerg # define FLT16_MIN_EXP __FLT16_MIN_EXP__ 143 1.1 joerg # define FLT16_MIN_10_EXP __FLT16_MIN_10_EXP__ 144 1.1 joerg # define FLT16_MAX_EXP __FLT16_MAX_EXP__ 145 1.1 joerg # define FLT16_MAX_10_EXP __FLT16_MAX_10_EXP__ 146 1.1 joerg # define FLT16_MAX __FLT16_MAX__ 147 1.1 joerg # define FLT16_EPSILON __FLT16_EPSILON__ 148 1.1 joerg # define FLT16_MIN __FLT16_MIN__ 149 1.1 joerg # define FLT16_TRUE_MIN __FLT16_TRUE_MIN__ 150 1.1 joerg #endif /* __STDC_WANT_IEC_60559_TYPES_EXT__ */ 151 1.1 joerg 152 1.1 joerg #endif /* __CLANG_FLOAT_H */ 153
Indexes created Mon Mar 02 05:31:46 UTC 2026