You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
157 lines
6.1 KiB
157 lines
6.1 KiB
/***
|
|
*limits.h - implementation dependent values
|
|
*
|
|
* Copyright (c) 1985-2001, Microsoft Corporation. All rights reserved.
|
|
*
|
|
*Purpose:
|
|
* Contains defines for a number of implementation dependent values
|
|
* which are commonly used in C programs.
|
|
* [ANSI]
|
|
*
|
|
* [Public]
|
|
*
|
|
*Revision History:
|
|
* 06-03-87 JMB Added support for unsigned char max values
|
|
* 08-19-88 GJF Revised to also support the 386
|
|
* 04-28-89 SKS Put parentheses around negative constants
|
|
* 08-17-89 GJF Cleanup, now specific to 386
|
|
* 10-30-89 GJF Fixed copyright
|
|
* 11-15-89 KRS Add MB_LEN_MAX, fix CHAR_MIN/MAX, order like ANSI spec.
|
|
* 03-01-90 GJF Added #ifndef _INC_LIMITS stuff
|
|
* 02-21-91 KRS Change MB_LEN_MAX to 2 for C 7.00.
|
|
* 03-30-92 DJM POSIX support.
|
|
* 08-22-92 SRW Fix value of _POSIX_ARG_MAX
|
|
* 12-14-92 SRW Fix value of _POSIX_ARG_MAX again
|
|
* 12-14-92 SRW Back merge MattBr's changes from 10/29/92
|
|
* 01-15-93 CFW Added __c_lconvinit dummy variable.
|
|
* 01-28-93 SRW MAke PATH_MAX for Posix right for Posix
|
|
* 02-01-93 CFW Removed __c_lconvinit vars to locale.h.
|
|
* 03-10-93 MJB More fixes for Posix.
|
|
* 04-07-93 SKS Fix copyright
|
|
* 04-20-93 GJF Changed SCHAR_MIN, SHRT_MIN, INT_MIN, LONG_MIN
|
|
* 04-21-93 GJF By directive of JonM, backed out prior change.
|
|
* 04-26-93 GJF By directive of JonM, restored change.
|
|
* 02-01-94 GJF Added type suffixes to LONG_MAX, LONG_MIN and
|
|
* ULONG_MAX. Added constants for sized integer types.
|
|
* 02-23-94 CFW Add u suffixes.
|
|
* 02-11-95 CFW Add _CRTBLD to avoid users getting wrong headers.
|
|
* 02-14-95 CFW Clean up Mac merge.
|
|
* 12-14-95 JWM Add "#pragma once".
|
|
* 01-01-96 BWT Define LINK_MAX for POSIX.
|
|
* 02-24-97 GJF Detab-ed.
|
|
* 05-17-99 PML Remove all Macintosh support.
|
|
* 12-16-99 GB Updated MB_LEN_MAX
|
|
*
|
|
****/
|
|
|
|
#if _MSC_VER > 1000 /*IFSTRIP=IGN*/
|
|
#pragma once
|
|
#endif
|
|
|
|
#ifndef _INC_LIMITS
|
|
#define _INC_LIMITS
|
|
|
|
#if !defined(_WIN32)
|
|
#error ERROR: Only Win32 target supported!
|
|
#endif
|
|
|
|
#ifndef _CRTBLD
|
|
/* This version of the header files is NOT for user programs.
|
|
* It is intended for use when building the C runtimes ONLY.
|
|
* The version intended for public use will not have this message.
|
|
*/
|
|
#error ERROR: Use of C runtime library internal header file.
|
|
#endif /* _CRTBLD */
|
|
|
|
#define CHAR_BIT 8 /* number of bits in a char */
|
|
#define SCHAR_MIN (-128) /* minimum signed char value */
|
|
#define SCHAR_MAX 127 /* maximum signed char value */
|
|
#define UCHAR_MAX 0xff /* maximum unsigned char value */
|
|
|
|
#ifndef _CHAR_UNSIGNED
|
|
#define CHAR_MIN SCHAR_MIN /* mimimum char value */
|
|
#define CHAR_MAX SCHAR_MAX /* maximum char value */
|
|
#else
|
|
#define CHAR_MIN 0
|
|
#define CHAR_MAX UCHAR_MAX
|
|
#endif /* _CHAR_UNSIGNED */
|
|
|
|
#define MB_LEN_MAX 5 /* max. # bytes in multibyte char */
|
|
#define SHRT_MIN (-32768) /* minimum (signed) short value */
|
|
#define SHRT_MAX 32767 /* maximum (signed) short value */
|
|
#define USHRT_MAX 0xffff /* maximum unsigned short value */
|
|
#define INT_MIN (-2147483647 - 1) /* minimum (signed) int value */
|
|
#define INT_MAX 2147483647 /* maximum (signed) int value */
|
|
#define UINT_MAX 0xffffffff /* maximum unsigned int value */
|
|
#define LONG_MIN (-2147483647L - 1) /* minimum (signed) long value */
|
|
#define LONG_MAX 2147483647L /* maximum (signed) long value */
|
|
#define ULONG_MAX 0xffffffffUL /* maximum unsigned long value */
|
|
|
|
#if _INTEGRAL_MAX_BITS >= 8 /*IFSTRIP=IGN*/
|
|
#define _I8_MIN (-127i8 - 1) /* minimum signed 8 bit value */
|
|
#define _I8_MAX 127i8 /* maximum signed 8 bit value */
|
|
#define _UI8_MAX 0xffui8 /* maximum unsigned 8 bit value */
|
|
#endif
|
|
|
|
#if _INTEGRAL_MAX_BITS >= 16 /*IFSTRIP=IGN*/
|
|
#define _I16_MIN (-32767i16 - 1) /* minimum signed 16 bit value */
|
|
#define _I16_MAX 32767i16 /* maximum signed 16 bit value */
|
|
#define _UI16_MAX 0xffffui16 /* maximum unsigned 16 bit value */
|
|
#endif
|
|
|
|
#if _INTEGRAL_MAX_BITS >= 32 /*IFSTRIP=IGN*/
|
|
#define _I32_MIN (-2147483647i32 - 1) /* minimum signed 32 bit value */
|
|
#define _I32_MAX 2147483647i32 /* maximum signed 32 bit value */
|
|
#define _UI32_MAX 0xffffffffui32 /* maximum unsigned 32 bit value */
|
|
#endif
|
|
|
|
#if _INTEGRAL_MAX_BITS >= 64 /*IFSTRIP=IGN*/
|
|
/* minimum signed 64 bit value */
|
|
#define _I64_MIN (-9223372036854775807i64 - 1)
|
|
/* maximum signed 64 bit value */
|
|
#define _I64_MAX 9223372036854775807i64
|
|
/* maximum unsigned 64 bit value */
|
|
#define _UI64_MAX 0xffffffffffffffffui64
|
|
#endif
|
|
|
|
#if _INTEGRAL_MAX_BITS >= 128 /*IFSTRIP=IGN*/
|
|
/* minimum signed 128 bit value */
|
|
#define _I128_MIN (-170141183460469231731687303715884105727i128 - 1)
|
|
/* maximum signed 128 bit value */
|
|
#define _I128_MAX 170141183460469231731687303715884105727i128
|
|
/* maximum unsigned 128 bit value */
|
|
#define _UI128_MAX 0xffffffffffffffffffffffffffffffffui128
|
|
#endif
|
|
|
|
#ifdef _POSIX_
|
|
|
|
#define _POSIX_ARG_MAX 4096
|
|
#define _POSIX_CHILD_MAX 6
|
|
#define _POSIX_LINK_MAX 8
|
|
#define _POSIX_MAX_CANON 255
|
|
#define _POSIX_MAX_INPUT 255
|
|
#define _POSIX_NAME_MAX 14
|
|
#define _POSIX_NGROUPS_MAX 0
|
|
#define _POSIX_OPEN_MAX 16
|
|
#define _POSIX_PATH_MAX 255
|
|
#define _POSIX_PIPE_BUF 512
|
|
#define _POSIX_SSIZE_MAX 32767
|
|
#define _POSIX_STREAM_MAX 8
|
|
#define _POSIX_TZNAME_MAX 3
|
|
|
|
#define ARG_MAX 14500 /* 16k heap, minus overhead */
|
|
#define LINK_MAX 1024
|
|
#define MAX_CANON _POSIX_MAX_CANON
|
|
#define MAX_INPUT _POSIX_MAX_INPUT
|
|
#define NAME_MAX 255
|
|
#define NGROUPS_MAX 16
|
|
#define OPEN_MAX 32
|
|
#define PATH_MAX 512
|
|
#define PIPE_BUF _POSIX_PIPE_BUF
|
|
#define SSIZE_MAX _POSIX_SSIZE_MAX
|
|
#define STREAM_MAX 20
|
|
#define TZNAME_MAX 10
|
|
|
|
#endif /* POSIX */
|
|
|
|
#endif /* _INC_LIMITS */
|