| /*===---- float.h - Characteristics of floating point types ----------------=== |
| * |
| * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| * See https://llvm.org/LICENSE.txt for license information. |
| * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| * |
| *===-----------------------------------------------------------------------=== |
| */ |
| |
| #ifndef __CLANG_FLOAT_H |
| #define __CLANG_FLOAT_H |
| |
| /* If we're on MinGW, fall back to the system's float.h, which might have |
| * additional definitions provided for Windows. |
| * For more details see http://msdn.microsoft.com/en-us/library/y0ybw9fy.aspx |
| * |
| * Also fall back on Darwin to allow additional definitions and |
| * implementation-defined values. |
| */ |
| #if (defined(__APPLE__) || (defined(__MINGW32__) || defined(_MSC_VER))) && \ |
| __STDC_HOSTED__ && __has_include_next(<float.h>) |
| |
| /* Prior to Apple's 10.7 SDK, float.h SDK header used to apply an extra level |
| * of #include_next<float.h> to keep Metrowerks compilers happy. Avoid this |
| * extra indirection. |
| */ |
| #ifdef __APPLE__ |
| #define _FLOAT_H_ |
| #endif |
| |
| # include_next <float.h> |
| |
| /* Undefine anything that we'll be redefining below. */ |
| # undef FLT_EVAL_METHOD |
| # undef FLT_ROUNDS |
| # undef FLT_RADIX |
| # undef FLT_MANT_DIG |
| # undef DBL_MANT_DIG |
| # undef LDBL_MANT_DIG |
| # if __STDC_VERSION__ >= 199901L || !defined(__STRICT_ANSI__) || __cplusplus >= 201103L |
| # undef DECIMAL_DIG |
| # endif |
| # undef FLT_DIG |
| # undef DBL_DIG |
| # undef LDBL_DIG |
| # undef FLT_MIN_EXP |
| # undef DBL_MIN_EXP |
| # undef LDBL_MIN_EXP |
| # undef FLT_MIN_10_EXP |
| # undef DBL_MIN_10_EXP |
| # undef LDBL_MIN_10_EXP |
| # undef FLT_MAX_EXP |
| # undef DBL_MAX_EXP |
| # undef LDBL_MAX_EXP |
| # undef FLT_MAX_10_EXP |
| # undef DBL_MAX_10_EXP |
| # undef LDBL_MAX_10_EXP |
| # undef FLT_MAX |
| # undef DBL_MAX |
| # undef LDBL_MAX |
| # undef FLT_EPSILON |
| # undef DBL_EPSILON |
| # undef LDBL_EPSILON |
| # undef FLT_MIN |
| # undef DBL_MIN |
| # undef LDBL_MIN |
| # if __STDC_VERSION__ >= 201112L || !defined(__STRICT_ANSI__) || __cplusplus >= 201703L |
| # undef FLT_TRUE_MIN |
| # undef DBL_TRUE_MIN |
| # undef LDBL_TRUE_MIN |
| # undef FLT_DECIMAL_DIG |
| # undef DBL_DECIMAL_DIG |
| # undef LDBL_DECIMAL_DIG |
| # undef FLT_HAS_SUBNORM |
| # undef DBL_HAS_SUBNORM |
| # undef LDBL_HAS_SUBNORM |
| # endif |
| #endif |
| |
| /* Characteristics of floating point types, C99 5.2.4.2.2 */ |
| |
| #define FLT_EVAL_METHOD __FLT_EVAL_METHOD__ |
| #define FLT_ROUNDS (__builtin_flt_rounds()) |
| #define FLT_RADIX __FLT_RADIX__ |
| |
| #define FLT_MANT_DIG __FLT_MANT_DIG__ |
| #define DBL_MANT_DIG __DBL_MANT_DIG__ |
| #define LDBL_MANT_DIG __LDBL_MANT_DIG__ |
| |
| #if __STDC_VERSION__ >= 199901L || !defined(__STRICT_ANSI__) || __cplusplus >= 201103L |
| # define DECIMAL_DIG __DECIMAL_DIG__ |
| #endif |
| |
| #define FLT_DIG __FLT_DIG__ |
| #define DBL_DIG __DBL_DIG__ |
| #define LDBL_DIG __LDBL_DIG__ |
| |
| #define FLT_MIN_EXP __FLT_MIN_EXP__ |
| #define DBL_MIN_EXP __DBL_MIN_EXP__ |
| #define LDBL_MIN_EXP __LDBL_MIN_EXP__ |
| |
| #define FLT_MIN_10_EXP __FLT_MIN_10_EXP__ |
| #define DBL_MIN_10_EXP __DBL_MIN_10_EXP__ |
| #define LDBL_MIN_10_EXP __LDBL_MIN_10_EXP__ |
| |
| #define FLT_MAX_EXP __FLT_MAX_EXP__ |
| #define DBL_MAX_EXP __DBL_MAX_EXP__ |
| #define LDBL_MAX_EXP __LDBL_MAX_EXP__ |
| |
| #define FLT_MAX_10_EXP __FLT_MAX_10_EXP__ |
| #define DBL_MAX_10_EXP __DBL_MAX_10_EXP__ |
| #define LDBL_MAX_10_EXP __LDBL_MAX_10_EXP__ |
| |
| #define FLT_MAX __FLT_MAX__ |
| #define DBL_MAX __DBL_MAX__ |
| #define LDBL_MAX __LDBL_MAX__ |
| |
| #define FLT_EPSILON __FLT_EPSILON__ |
| #define DBL_EPSILON __DBL_EPSILON__ |
| #define LDBL_EPSILON __LDBL_EPSILON__ |
| |
| #define FLT_MIN __FLT_MIN__ |
| #define DBL_MIN __DBL_MIN__ |
| #define LDBL_MIN __LDBL_MIN__ |
| |
| #if __STDC_VERSION__ >= 201112L || !defined(__STRICT_ANSI__) || __cplusplus >= 201703L |
| # define FLT_TRUE_MIN __FLT_DENORM_MIN__ |
| # define DBL_TRUE_MIN __DBL_DENORM_MIN__ |
| # define LDBL_TRUE_MIN __LDBL_DENORM_MIN__ |
| # define FLT_DECIMAL_DIG __FLT_DECIMAL_DIG__ |
| # define DBL_DECIMAL_DIG __DBL_DECIMAL_DIG__ |
| # define LDBL_DECIMAL_DIG __LDBL_DECIMAL_DIG__ |
| # define FLT_HAS_SUBNORM __FLT_HAS_DENORM__ |
| # define DBL_HAS_SUBNORM __DBL_HAS_DENORM__ |
| # define LDBL_HAS_SUBNORM __LDBL_HAS_DENORM__ |
| #endif |
| |
| #ifdef __STDC_WANT_IEC_60559_TYPES_EXT__ |
| # define FLT16_MANT_DIG __FLT16_MANT_DIG__ |
| # define FLT16_DECIMAL_DIG __FLT16_DECIMAL_DIG__ |
| # define FLT16_DIG __FLT16_DIG__ |
| # define FLT16_MIN_EXP __FLT16_MIN_EXP__ |
| # define FLT16_MIN_10_EXP __FLT16_MIN_10_EXP__ |
| # define FLT16_MAX_EXP __FLT16_MAX_EXP__ |
| # define FLT16_MAX_10_EXP __FLT16_MAX_10_EXP__ |
| # define FLT16_MAX __FLT16_MAX__ |
| # define FLT16_EPSILON __FLT16_EPSILON__ |
| # define FLT16_MIN __FLT16_MIN__ |
| # define FLT16_TRUE_MIN __FLT16_TRUE_MIN__ |
| #endif /* __STDC_WANT_IEC_60559_TYPES_EXT__ */ |
| |
| #endif /* __CLANG_FLOAT_H */ |
