/*===---- 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 defined(__MVS__) && __has_include_next(<float.h>) #include_next <float.h> #else /* 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 and AIX to allow additional definitions and * implementation-defined values. */ #if (defined(__APPLE__) || defined(__MINGW32__) || defined(_MSC_VER) || \ defined(_AIX)) && \ __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 (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \ !defined(__STRICT_ANSI__) || \ (defined(__cplusplus) && __cplusplus >= 201103L) || \ (__STDC_HOSTED__ && defined(_AIX) && defined(_ALL_SOURCE)) # 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 (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) || \ !defined(__STRICT_ANSI__) || \ (defined(__cplusplus) && __cplusplus >= 201703L) || \ (__STDC_HOSTED__ && defined(_AIX) && defined(_ALL_SOURCE)) # 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 #if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 202311L) || \ !defined(__STRICT_ANSI__) # undef FLT_NORM_MAX # undef DBL_NORM_MAX # undef LDBL_NORM_MAX #endif #endif #if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 202311L) || \ !defined(__STRICT_ANSI__) # undef INFINITY # undef NAN #endif /* Characteristics of floating point types, C99 5.2.4.2.2 */ #if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \ (defined(__cplusplus) && __cplusplus >= 201103L) #define FLT_EVAL_METHOD … #endif #define FLT_ROUNDS … #define FLT_RADIX … #define FLT_MANT_DIG … #define DBL_MANT_DIG … #define LDBL_MANT_DIG … #if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \ !defined(__STRICT_ANSI__) || \ (defined(__cplusplus) && __cplusplus >= 201103L) || \ (__STDC_HOSTED__ && defined(_AIX) && defined(_ALL_SOURCE)) #define DECIMAL_DIG … #endif #define FLT_DIG … #define DBL_DIG … #define LDBL_DIG … #define FLT_MIN_EXP … #define DBL_MIN_EXP … #define LDBL_MIN_EXP … #define FLT_MIN_10_EXP … #define DBL_MIN_10_EXP … #define LDBL_MIN_10_EXP … #define FLT_MAX_EXP … #define DBL_MAX_EXP … #define LDBL_MAX_EXP … #define FLT_MAX_10_EXP … #define DBL_MAX_10_EXP … #define LDBL_MAX_10_EXP … #define FLT_MAX … #define DBL_MAX … #define LDBL_MAX … #define FLT_EPSILON … #define DBL_EPSILON … #define LDBL_EPSILON … #define FLT_MIN … #define DBL_MIN … #define LDBL_MIN … #if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) || \ !defined(__STRICT_ANSI__) || \ (defined(__cplusplus) && __cplusplus >= 201703L) || \ (__STDC_HOSTED__ && defined(_AIX) && defined(_ALL_SOURCE)) #define FLT_TRUE_MIN … #define DBL_TRUE_MIN … #define LDBL_TRUE_MIN … #define FLT_DECIMAL_DIG … #define DBL_DECIMAL_DIG … #define LDBL_DECIMAL_DIG … #define FLT_HAS_SUBNORM … #define DBL_HAS_SUBNORM … #define LDBL_HAS_SUBNORM … #endif #if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 202311L) || \ !defined(__STRICT_ANSI__) /* C23 5.2.5.3.3p29-30 */ #define INFINITY … #define NAN … /* C23 5.2.5.3.3p32 */ #define FLT_NORM_MAX … #define DBL_NORM_MAX … #define LDBL_NORM_MAX … #endif #ifdef __STDC_WANT_IEC_60559_TYPES_EXT__ #define FLT16_MANT_DIG … #define FLT16_DECIMAL_DIG … #define FLT16_DIG … #define FLT16_MIN_EXP … #define FLT16_MIN_10_EXP … #define FLT16_MAX_EXP … #define FLT16_MAX_10_EXP … #define FLT16_MAX … #define FLT16_EPSILON … #define FLT16_MIN … #define FLT16_TRUE_MIN … #endif /* __STDC_WANT_IEC_60559_TYPES_EXT__ */ #endif /* __MVS__ */ #endif /* __CLANG_FLOAT_H */
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