116 lines
2.5 KiB
C
116 lines
2.5 KiB
C
/*
|
|
* limits.h
|
|
*
|
|
* Defines constants for the sizes of integral types.
|
|
*
|
|
* NOTE: GCC should supply a version of this header and it should be safe to
|
|
* use that version instead of this one (maybe safer).
|
|
*
|
|
* This file is part of the Mingw32 package.
|
|
*
|
|
* Contributors:
|
|
* Created by Colin Peters <colin@bird.fu.is.saga-u.ac.jp>
|
|
*
|
|
* THIS SOFTWARE IS NOT COPYRIGHTED
|
|
*
|
|
* This source code is offered for use in the public domain. You may
|
|
* use, modify or distribute it freely.
|
|
*
|
|
* This code is distributed in the hope that it will be useful but
|
|
* WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
|
|
* DISCLAMED. This includes but is not limited to warranties of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
|
*
|
|
* $Revision$
|
|
* $Author$
|
|
* $Date$
|
|
*
|
|
*/
|
|
|
|
#ifndef _LIMITS_H_
|
|
#define _LIMITS_H_
|
|
|
|
/* All the headers include this file. */
|
|
#include <_mingw.h>
|
|
|
|
/*
|
|
* File system limits
|
|
*
|
|
* TODO: NAME_MAX and OPEN_MAX are file system limits or not? Are they the
|
|
* same as FILENAME_MAX and FOPEN_MAX from stdio.h?
|
|
* NOTE: Apparently the actual size of PATH_MAX is 260, but a space is
|
|
* required for the NUL. TODO: Test?
|
|
*/
|
|
#define PATH_MAX (259)
|
|
|
|
/*
|
|
* Characteristics of the char data type.
|
|
*
|
|
* TODO: Is MB_LEN_MAX correct?
|
|
*/
|
|
#define CHAR_BIT 8
|
|
#define MB_LEN_MAX 2
|
|
|
|
#define SCHAR_MIN (-128)
|
|
#define SCHAR_MAX 127
|
|
|
|
#define UCHAR_MAX 255
|
|
|
|
/* TODO: Is this safe? I think it might just be testing the preprocessor,
|
|
* not the compiler itself... */
|
|
#if ('\x80' < 0)
|
|
#define CHAR_MIN SCHAR_MIN
|
|
#define CHAR_MAX SCHAR_MAX
|
|
#else
|
|
#define CHAR_MIN 0
|
|
#define CHAR_MAX UCHAR_MAX
|
|
#endif
|
|
|
|
/*
|
|
* Maximum and minimum values for ints.
|
|
*/
|
|
#define INT_MAX 2147483647
|
|
#define INT_MIN (-INT_MAX-1)
|
|
|
|
#define UINT_MAX 0xffffffff
|
|
|
|
/*
|
|
* Maximum and minimum values for shorts.
|
|
*/
|
|
#define SHRT_MAX 32767
|
|
#define SHRT_MIN (-SHRT_MAX-1)
|
|
|
|
#define USHRT_MAX 0xffff
|
|
|
|
/*
|
|
* Maximum and minimum values for longs and unsigned longs.
|
|
*
|
|
* TODO: This is not correct for Alphas, which have 64 bit longs.
|
|
*/
|
|
#define LONG_MAX 2147483647L
|
|
|
|
#define LONG_MIN (-LONG_MAX-1)
|
|
|
|
#define ULONG_MAX 0xffffffffUL
|
|
|
|
|
|
/*
|
|
* The GNU C compiler also allows 'long long int'
|
|
*/
|
|
#if !defined(__STRICT_ANSI__) && defined(__GNUC__)
|
|
|
|
#define LONG_LONG_MAX 9223372036854775807LL
|
|
#define LONG_LONG_MIN (-LONG_LONG_MAX-1)
|
|
|
|
#define ULONG_LONG_MAX (2ULL * LONG_LONG_MAX + 1)
|
|
|
|
/* ISO C9x macro names */
|
|
#define LLONG_MAX LONG_LONG_MAX
|
|
#define LLONG_MIN LONG_LONG_MIN
|
|
#define ULLONG_MAX ULONG_LONG_MAX
|
|
|
|
#endif /* Not Strict ANSI and GNU C compiler */
|
|
|
|
|
|
#endif /* not _LIMITS_H_ */
|