/*** *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 */