limit.h中定义了所有类型的范围其中long int#define LONG_MIN
(-2147483647L - 1) /* minimum (signed) long value */#define LONG_MAX
2147483647L /* maximum (signed) long value */limit.h完整定义：/****limits.h - implementation dependent values**
Copyright (c) 1985-1997, Microsoft Corporation.All rights reserved.**Purpose:*
Contains defines for a number of implementation dependent values*
which are commonly used in C programs.*
[ANSI]**
[Public]*****/#if
_MSC_VER > 1000#pragma once#endif#ifndef _INC_LIMITS#define _INC_LIMITS#if
!defined(_WIN32) && !defined(_MAC)#error ERROR: Only Mac or Win32 targets supported!#endif#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
2
/* 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#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#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#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/* 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/* 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_MAX0#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 */
