| 1 | /*===---- float.h - Characteristics of floating point types ----------------=== |
| 2 | * |
| 3 | * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | * See https://llvm.org/LICENSE.txt for license information. |
| 5 | * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | * |
| 7 | *===-----------------------------------------------------------------------=== |
| 8 | */ |
| 9 | |
| 10 | #if defined(__MVS__) && __has_include_next(<float.h>) |
| 11 | #include <__float_header_macro.h> |
| 12 | #include_next <float.h> |
| 13 | #else |
| 14 | |
| 15 | #if !defined(__need_infinity_nan) |
| 16 | #define __need_float_float |
| 17 | #if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 202311L) || \ |
| 18 | !defined(__STRICT_ANSI__) |
| 19 | #define __need_infinity_nan |
| 20 | #endif |
| 21 | #include <__float_header_macro.h> |
| 22 | #endif |
| 23 | |
| 24 | #ifdef __need_float_float |
| 25 | /* If we're on MinGW, fall back to the system's float.h, which might have |
| 26 | * additional definitions provided for Windows. |
| 27 | * For more details see http://msdn.microsoft.com/en-us/library/y0ybw9fy.aspx |
| 28 | * |
| 29 | * Also fall back on AIX to allow additional definitions and |
| 30 | * implementation-defined values. |
| 31 | */ |
| 32 | #if (defined(__MINGW32__) || defined(_MSC_VER) || defined(_AIX)) && \ |
| 33 | __STDC_HOSTED__ && __has_include_next(<float.h>) |
| 34 | |
| 35 | # include_next <float.h> |
| 36 | |
| 37 | #endif |
| 38 | |
| 39 | #include <__float_float.h> |
| 40 | #undef __need_float_float |
| 41 | #endif |
| 42 | |
| 43 | #ifdef __need_infinity_nan |
| 44 | #include <__float_infinity_nan.h> |
| 45 | #undef __need_infinity_nan |
| 46 | #endif |
| 47 | |
| 48 | #endif /* __MVS__ */ |