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Diffstat (limited to 'lib/clang/12.0.0/include/limits.h')
| -rw-r--r-- | lib/clang/12.0.0/include/limits.h | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/lib/clang/12.0.0/include/limits.h b/lib/clang/12.0.0/include/limits.h new file mode 100644 index 0000000..c653580 --- /dev/null +++ b/lib/clang/12.0.0/include/limits.h @@ -0,0 +1,102 @@ +/*===---- limits.h - Standard header for integer sizes --------------------===*\ + * + * 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_LIMITS_H +#define __CLANG_LIMITS_H + +/* The system's limits.h may, in turn, try to #include_next GCC's limits.h. + Avert this #include_next madness. */ +#if defined __GNUC__ && !defined _GCC_LIMITS_H_ +#define _GCC_LIMITS_H_ +#endif + +/* System headers include a number of constants from POSIX in <limits.h>. + Include it if we're hosted. */ +#if __STDC_HOSTED__ && __has_include_next(<limits.h>) +#include_next <limits.h> +#endif + +/* Many system headers try to "help us out" by defining these. No really, we + know how big each datatype is. */ +#undef SCHAR_MIN +#undef SCHAR_MAX +#undef UCHAR_MAX +#undef SHRT_MIN +#undef SHRT_MAX +#undef USHRT_MAX +#undef INT_MIN +#undef INT_MAX +#undef UINT_MAX +#undef LONG_MIN +#undef LONG_MAX +#undef ULONG_MAX + +#undef CHAR_BIT +#undef CHAR_MIN +#undef CHAR_MAX + +/* C90/99 5.2.4.2.1 */ +#define SCHAR_MAX __SCHAR_MAX__ +#define SHRT_MAX __SHRT_MAX__ +#define INT_MAX __INT_MAX__ +#define LONG_MAX __LONG_MAX__ + +#define SCHAR_MIN (-__SCHAR_MAX__-1) +#define SHRT_MIN (-__SHRT_MAX__ -1) +#define INT_MIN (-__INT_MAX__ -1) +#define LONG_MIN (-__LONG_MAX__ -1L) + +#define UCHAR_MAX (__SCHAR_MAX__*2 +1) +#define USHRT_MAX (__SHRT_MAX__ *2 +1) +#define UINT_MAX (__INT_MAX__ *2U +1U) +#define ULONG_MAX (__LONG_MAX__ *2UL+1UL) + +#ifndef MB_LEN_MAX +#define MB_LEN_MAX 1 +#endif + +#define CHAR_BIT __CHAR_BIT__ + +#ifdef __CHAR_UNSIGNED__ /* -funsigned-char */ +#define CHAR_MIN 0 +#define CHAR_MAX UCHAR_MAX +#else +#define CHAR_MIN SCHAR_MIN +#define CHAR_MAX __SCHAR_MAX__ +#endif + +/* C99 5.2.4.2.1: Added long long. + C++11 18.3.3.2: same contents as the Standard C Library header <limits.h>. + */ +#if __STDC_VERSION__ >= 199901L || __cplusplus >= 201103L + +#undef LLONG_MIN +#undef LLONG_MAX +#undef ULLONG_MAX + +#define LLONG_MAX __LONG_LONG_MAX__ +#define LLONG_MIN (-__LONG_LONG_MAX__-1LL) +#define ULLONG_MAX (__LONG_LONG_MAX__*2ULL+1ULL) +#endif + +/* LONG_LONG_MIN/LONG_LONG_MAX/ULONG_LONG_MAX are a GNU extension. It's too bad + that we don't have something like #pragma poison that could be used to + deprecate a macro - the code should just use LLONG_MAX and friends. + */ +#if defined(__GNU_LIBRARY__) ? defined(__USE_GNU) : !defined(__STRICT_ANSI__) + +#undef LONG_LONG_MIN +#undef LONG_LONG_MAX +#undef ULONG_LONG_MAX + +#define LONG_LONG_MAX __LONG_LONG_MAX__ +#define LONG_LONG_MIN (-__LONG_LONG_MAX__-1LL) +#define ULONG_LONG_MAX (__LONG_LONG_MAX__*2ULL+1ULL) +#endif + +#endif /* __CLANG_LIMITS_H */ |
