C/C++中变量类型最值之宏定义

C/C++ 【climits(limits.h)】

 

CHAR_BIT        Number of bits for a char object (byte)                        8

SCHAR_MIN     Minimum value for an object of type signedchar               -127

SCHAR_MAX       Maximumvalue for an object of type signed char                     127

UCHAR_MAX      Maximumvalue for an object of type unsigned char              255

CHAR_MIN       Minimum value for an object of type char              either SCHAR_MIN or 0

CHAR_MAX      Maximum value for an object of type char        eitherSCHAR_MAX or UCHAR_MAX

MB_LEN_MAX     Maximumnumber of bytes in a multibyte character, for any locale    1

SHRT_MIN        Minimum value for an object of type shortint                  -32767

SHRT_MAX       Maximum value for an object of type shortint                 32767

USHRT_MAX       Maximumvalue for an object of type unsigned short int          65535

INT_MIN           Minimum value for an object of type int                       -32767

INT_MAX          Maximum value for an object of type int                       32767

UINT_MAX       Maximum value for an object of type unsignedshort int           65535

LONG_MIN       Minimum value for an object of type longint                -2147483647

LONG_MAX      Maximum value for an object of type longint               2147483647

ULONG_MAX      Maximumvalue for an object of type unsigned int            4294967295