| // -*- C++ -*- |
| //===--------------------------- limits.h ---------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is dual licensed under the MIT and the University of Illinois Open |
| // Source Licenses. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef _LIBCPP_LIMITS_H |
| #define _LIBCPP_LIMITS_H |
| |
| /* |
| limits.h synopsis |
| |
| Macros: |
| |
| CHAR_BIT |
| SCHAR_MIN |
| SCHAR_MAX |
| UCHAR_MAX |
| CHAR_MIN |
| CHAR_MAX |
| MB_LEN_MAX |
| SHRT_MIN |
| SHRT_MAX |
| USHRT_MAX |
| INT_MIN |
| INT_MAX |
| UINT_MAX |
| LONG_MIN |
| LONG_MAX |
| ULONG_MAX |
| LLONG_MIN // C99 |
| LLONG_MAX // C99 |
| ULLONG_MAX // C99 |
| |
| */ |
| |
| #include <__config> |
| |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| #pragma GCC system_header |
| #endif |
| |
| #ifndef __GNUC__ |
| #include_next <limits.h> |
| #else |
| // GCC header limits.h recursively includes itself through another header called |
| // syslimits.h for some reason. This setup breaks down if we directly |
| // #include_next GCC's limits.h (reasons not entirely clear to me). Therefore, |
| // we manually re-create the necessary include sequence below: |
| |
| // Get the system limits.h defines (force recurse into the next level) |
| #define _GCC_LIMITS_H_ |
| #define _GCC_NEXT_LIMITS_H |
| #include_next <limits.h> |
| |
| // Get the ISO C defines |
| #undef _GCC_LIMITS_H_ |
| #include_next <limits.h> |
| #endif // __GNUC__ |
| |
| #endif // _LIBCPP_LIMITS_H |