1 // -*- C++ -*- 2 //===----------------------------------------------------------------------===// 3 // 4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5 // See https://llvm.org/LICENSE.txt for license information. 6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7 // 8 //===----------------------------------------------------------------------===// 9 10 #ifndef _LIBCPP_FLOAT_H 11 #define _LIBCPP_FLOAT_H 12 13 /* 14 float.h synopsis 15 16 Macros: 17 18 FLT_ROUNDS 19 FLT_EVAL_METHOD // C99 20 FLT_RADIX 21 22 FLT_MANT_DIG 23 DBL_MANT_DIG 24 LDBL_MANT_DIG 25 26 FLT_HAS_SUBNORM // C11 27 DBL_HAS_SUBNORM // C11 28 LDBL_HAS_SUBNORM // C11 29 30 DECIMAL_DIG // C99 31 FLT_DECIMAL_DIG // C11 32 DBL_DECIMAL_DIG // C11 33 LDBL_DECIMAL_DIG // C11 34 35 FLT_DIG 36 DBL_DIG 37 LDBL_DIG 38 39 FLT_MIN_EXP 40 DBL_MIN_EXP 41 LDBL_MIN_EXP 42 43 FLT_MIN_10_EXP 44 DBL_MIN_10_EXP 45 LDBL_MIN_10_EXP 46 47 FLT_MAX_EXP 48 DBL_MAX_EXP 49 LDBL_MAX_EXP 50 51 FLT_MAX_10_EXP 52 DBL_MAX_10_EXP 53 LDBL_MAX_10_EXP 54 55 FLT_MAX 56 DBL_MAX 57 LDBL_MAX 58 59 FLT_EPSILON 60 DBL_EPSILON 61 LDBL_EPSILON 62 63 FLT_MIN 64 DBL_MIN 65 LDBL_MIN 66 67 FLT_TRUE_MIN // C11 68 DBL_TRUE_MIN // C11 69 LDBL_TRUE_MIN // C11 70 71 */ 72 73 #if defined(__cplusplus) && __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS) 74 # include <__cxx03/float.h> 75 #else 76 # include <__config> 77 78 # if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 79 # pragma GCC system_header 80 # endif 81 82 # if __has_include_next(<float.h>) 83 # include_next <float.h> 84 # endif 85 86 # ifdef __cplusplus 87 88 # ifndef FLT_EVAL_METHOD 89 # define FLT_EVAL_METHOD __FLT_EVAL_METHOD__ 90 # endif 91 92 # ifndef DECIMAL_DIG 93 # define DECIMAL_DIG __DECIMAL_DIG__ 94 # endif 95 96 # endif // __cplusplus 97 #endif // defined(__cplusplus) && __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS) 98 99 #endif // _LIBCPP_FLOAT_H 100