| 1 | /* This administrivia gets added to the beginning of limits.h |
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| 2 | if the system has its own version of limits.h. */ |
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| 3 | |
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| 4 | /* We use _GCC_LIMITS_H_ because we want this not to match |
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| 5 | any macros that the system's limits.h uses for its own purposes. */ |
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| 6 | #ifndef _GCC_LIMITS_H_ /* Terminated in limity.h. */ |
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| 7 | #define _GCC_LIMITS_H_ |
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| 8 | |
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| 9 | #ifndef _LIBC_LIMITS_H_ |
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| 10 | /* Use "..." so that we find syslimits.h only in this same directory. */ |
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| 11 | #include "syslimits.h" |
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| 12 | #endif |
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| 13 | #ifndef _LIMITS_H___ |
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| 14 | #define _LIMITS_H___ |
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| 15 | |
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| 16 | /* Number of bits in a `char'. */ |
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| 17 | #undef CHAR_BIT |
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| 18 | #define CHAR_BIT __CHAR_BIT__ |
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| 19 | |
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| 20 | /* Maximum length of a multibyte character. */ |
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| 21 | #ifndef MB_LEN_MAX |
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| 22 | #define MB_LEN_MAX 1 |
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| 23 | #endif |
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| 24 | |
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| 25 | /* Minimum and maximum values a `signed char' can hold. */ |
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| 26 | #undef SCHAR_MIN |
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| 27 | #define SCHAR_MIN (-SCHAR_MAX - 1) |
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| 28 | #undef SCHAR_MAX |
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| 29 | #define SCHAR_MAX __SCHAR_MAX__ |
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| 30 | |
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| 31 | /* Maximum value an `unsigned char' can hold. (Minimum is 0). */ |
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| 32 | #undef UCHAR_MAX |
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| 33 | #if __SCHAR_MAX__ == __INT_MAX__ |
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| 34 | # define UCHAR_MAX (SCHAR_MAX * 2U + 1U) |
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| 35 | #else |
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| 36 | # define UCHAR_MAX (SCHAR_MAX * 2 + 1) |
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| 37 | #endif |
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| 38 | |
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| 39 | /* Minimum and maximum values a `char' can hold. */ |
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| 40 | #ifdef __CHAR_UNSIGNED__ |
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| 41 | # undef CHAR_MIN |
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| 42 | # if __SCHAR_MAX__ == __INT_MAX__ |
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| 43 | # define CHAR_MIN 0U |
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| 44 | # else |
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| 45 | # define CHAR_MIN 0 |
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| 46 | # endif |
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| 47 | # undef CHAR_MAX |
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| 48 | # define CHAR_MAX UCHAR_MAX |
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| 49 | #else |
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| 50 | # undef CHAR_MIN |
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| 51 | # define CHAR_MIN SCHAR_MIN |
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| 52 | # undef CHAR_MAX |
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| 53 | # define CHAR_MAX SCHAR_MAX |
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| 54 | #endif |
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| 55 | |
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| 56 | /* Minimum and maximum values a `signed short int' can hold. */ |
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| 57 | #undef SHRT_MIN |
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| 58 | #define SHRT_MIN (-SHRT_MAX - 1) |
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| 59 | #undef SHRT_MAX |
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| 60 | #define SHRT_MAX __SHRT_MAX__ |
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| 61 | |
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| 62 | /* Maximum value an `unsigned short int' can hold. (Minimum is 0). */ |
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| 63 | #undef USHRT_MAX |
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| 64 | #if __SHRT_MAX__ == __INT_MAX__ |
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| 65 | # define USHRT_MAX (SHRT_MAX * 2U + 1U) |
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| 66 | #else |
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| 67 | # define USHRT_MAX (SHRT_MAX * 2 + 1) |
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| 68 | #endif |
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| 69 | |
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| 70 | /* Minimum and maximum values a `signed int' can hold. */ |
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| 71 | #undef INT_MIN |
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| 72 | #define INT_MIN (-INT_MAX - 1) |
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| 73 | #undef INT_MAX |
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| 74 | #define INT_MAX __INT_MAX__ |
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| 75 | |
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| 76 | /* Maximum value an `unsigned int' can hold. (Minimum is 0). */ |
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| 77 | #undef UINT_MAX |
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| 78 | #define UINT_MAX (INT_MAX * 2U + 1U) |
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| 79 | |
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| 80 | /* Minimum and maximum values a `signed long int' can hold. |
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| 81 | (Same as `int'). */ |
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| 82 | #undef LONG_MIN |
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| 83 | #define LONG_MIN (-LONG_MAX - 1L) |
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| 84 | #undef LONG_MAX |
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| 85 | #define LONG_MAX __LONG_MAX__ |
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| 86 | |
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| 87 | /* Maximum value an `unsigned long int' can hold. (Minimum is 0). */ |
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| 88 | #undef ULONG_MAX |
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| 89 | #define ULONG_MAX (LONG_MAX * 2UL + 1UL) |
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| 90 | |
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| 91 | #if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L |
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| 92 | /* Minimum and maximum values a `signed long long int' can hold. */ |
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| 93 | # undef LLONG_MIN |
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| 94 | # define LLONG_MIN (-LLONG_MAX - 1LL) |
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| 95 | # undef LLONG_MAX |
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| 96 | # define LLONG_MAX __LONG_LONG_MAX__ |
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| 97 | |
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| 98 | /* Maximum value an `unsigned long long int' can hold. (Minimum is 0). */ |
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| 99 | # undef ULLONG_MAX |
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| 100 | # define ULLONG_MAX (LLONG_MAX * 2ULL + 1ULL) |
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| 101 | #endif |
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| 102 | |
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| 103 | #if defined (__GNU_LIBRARY__) ? defined (__USE_GNU) : !defined (__STRICT_ANSI__) |
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| 104 | /* Minimum and maximum values a `signed long long int' can hold. */ |
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| 105 | # undef LONG_LONG_MIN |
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| 106 | # define LONG_LONG_MIN (-LONG_LONG_MAX - 1LL) |
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| 107 | # undef LONG_LONG_MAX |
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| 108 | # define LONG_LONG_MAX __LONG_LONG_MAX__ |
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| 109 | |
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| 110 | /* Maximum value an `unsigned long long int' can hold. (Minimum is 0). */ |
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| 111 | # undef ULONG_LONG_MAX |
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| 112 | # define ULONG_LONG_MAX (LONG_LONG_MAX * 2ULL + 1ULL) |
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| 113 | #endif |
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| 114 | |
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| 115 | #endif /* _LIMITS_H___ */ |
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| 116 | /* This administrivia gets added to the end of limits.h |
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| 117 | if the system has its own version of limits.h. */ |
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| 118 | |
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| 119 | #else /* not _GCC_LIMITS_H_ */ |
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| 120 | |
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| 121 | #ifdef _GCC_NEXT_LIMITS_H |
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| 122 | #include_next <limits.h> /* recurse down to the real one */ |
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| 123 | #endif |
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| 124 | |
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| 125 | #endif /* not _GCC_LIMITS_H_ */ |
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