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/* |
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* limits.h |
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* This file has no copyright assigned and is placed in the Public Domain. |
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* This file is a part of the mingw-runtime package. |
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* No warranty is given; refer to the file DISCLAIMER within the package. |
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* |
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* Functions for manipulating paths and directories (included from io.h) |
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* plus functions for setting the current drive. |
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* |
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* Defines constants for the sizes of integral types. |
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* |
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* NOTE: GCC should supply a version of this header and it should be safe to |
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* use that version instead of this one (maybe safer). |
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* |
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*/ |
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|
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#ifndef _LIMITS_H_ |
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#define _LIMITS_H_ |
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|
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/* All the headers include this file. */ |
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#include <_mingw.h> |
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|
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/* |
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* File system limits |
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* |
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* TODO: NAME_MAX and OPEN_MAX are file system limits or not? Are they the |
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* same as FILENAME_MAX and FOPEN_MAX from stdio.h? |
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* NOTE: PATH_MAX is the POSIX equivalent for Microsoft's MAX_PATH; the two |
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* are semantically identical, with a limit of 259 characters for the |
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* path name, plus one for a terminating NUL, for a total of 260. |
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*/ |
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#ifndef __STRICT_ANSI__ |
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# define PATH_MAX 260 |
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#endif |
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|
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/* |
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* Characteristics of the char data type. |
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* |
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* TODO: Is MB_LEN_MAX correct? |
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*/ |
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#define CHAR_BIT 8 |
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#define MB_LEN_MAX 2 |
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|
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#define SCHAR_MIN (-128) |
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#define SCHAR_MAX 127 |
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|
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#define UCHAR_MAX 255 |
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|
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/* TODO: Is this safe? I think it might just be testing the preprocessor, |
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* not the compiler itself... */ |
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#if ('\x80' < 0) |
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#define CHAR_MIN SCHAR_MIN |
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#define CHAR_MAX SCHAR_MAX |
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#else |
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#define CHAR_MIN 0 |
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#define CHAR_MAX UCHAR_MAX |
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#endif |
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|
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/* |
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* Maximum and minimum values for ints. |
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*/ |
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#define INT_MAX 2147483647 |
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#define INT_MIN (-INT_MAX-1) |
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|
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#define UINT_MAX 0xffffffff |
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|
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/* |
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* Maximum and minimum values for shorts. |
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*/ |
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#define SHRT_MAX 32767 |
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#define SHRT_MIN (-SHRT_MAX-1) |
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|
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#define USHRT_MAX 0xffff |
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|
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/* |
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* Maximum and minimum values for longs and unsigned longs. |
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* |
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* TODO: This is not correct for Alphas, which have 64 bit longs. |
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*/ |
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#define LONG_MAX 2147483647L |
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#define LONG_MIN (-LONG_MAX-1) |
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|
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#define ULONG_MAX 0xffffffffUL |
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|
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#ifndef __STRICT_ANSI__ |
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/* POSIX wants this. */ |
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#define SSIZE_MAX LONG_MAX |
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#endif |
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|
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#if (defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) \ |
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|| !defined(__STRICT_ANSI__) |
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/* ISO C9x macro names */ |
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#define LLONG_MAX 9223372036854775807LL |
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#define LLONG_MIN (-LLONG_MAX - 1) |
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#define ULLONG_MAX (2ULL * LLONG_MAX + 1) |
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#endif |
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|
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/* |
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* The GNU C compiler also allows 'long long int' |
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*/ |
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#if !defined(__STRICT_ANSI__) && defined(__GNUC__) |
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|
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#define LONG_LONG_MAX 9223372036854775807LL |
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#define LONG_LONG_MIN (-LONG_LONG_MAX-1) |
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#define ULONG_LONG_MAX (2ULL * LONG_LONG_MAX + 1) |
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|
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/* MSVC compatibility */ |
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#define _I64_MIN LONG_LONG_MIN |
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#define _I64_MAX LONG_LONG_MAX |
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#define _UI64_MAX ULONG_LONG_MAX |
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|
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#endif /* Not Strict ANSI and GNU C compiler */ |
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|
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|
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#endif /* not _LIMITS_H_ */ |
