1 // -*- C++ -*- 2 //===--------------------------- limits.h ---------------------------------===// 3 // 4 // The LLVM Compiler Infrastructure 5 // 6 // This file is dual licensed under the MIT and the University of Illinois Open 7 // Source Licenses. See LICENSE.TXT for details. 8 // 9 //===----------------------------------------------------------------------===// 10 11 #ifndef _LIBCPP_LIMITS_H 12 #define _LIBCPP_LIMITS_H 13 14 /* 15 limits.h synopsis 16 17 Macros: 18 19 CHAR_BIT 20 SCHAR_MIN 21 SCHAR_MAX 22 UCHAR_MAX 23 CHAR_MIN 24 CHAR_MAX 25 MB_LEN_MAX 26 SHRT_MIN 27 SHRT_MAX 28 USHRT_MAX 29 INT_MIN 30 INT_MAX 31 UINT_MAX 32 LONG_MIN 33 LONG_MAX 34 ULONG_MAX 35 LLONG_MIN // C99 36 LLONG_MAX // C99 37 ULLONG_MAX // C99 38 39 */ 40 41 #include <__config> 42 43 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 44 #pragma GCC system_header 45 #endif 46 47 #ifndef __GNUC__ 48 #include_next <limits.h> 49 #else 50 // GCC header limits.h recursively includes itself through another header called 51 // syslimits.h for some reason. This setup breaks down if we directly 52 // #include_next GCC's limits.h (reasons not entirely clear to me). Therefore, 53 // we manually re-create the necessary include sequence below: 54 55 // Get the system limits.h defines (force recurse into the next level) 56 #define _GCC_LIMITS_H_ 57 #define _GCC_NEXT_LIMITS_H 58 #include_next <limits.h> 59 60 // Get the ISO C defines 61 #undef _GCC_LIMITS_H_ 62 #include_next <limits.h> 63 #endif // __GNUC__ 64 65 #endif // _LIBCPP_LIMITS_H 66
