C++

内置类型的最大值宏定义

本文地址: http://blog.csdn.net/caroline_wendy/article/details/24311895

C++中, 常常会使用, 某些类型的最大值, 如int的最大整数(INT_MAX), C的函数中, 包括了这些宏定义.

头文件: #include <climits>

详细參见:

name	expresses	value*
CHAR_BIT	Number of bits in a char object (byte)	8 or greater*
SCHAR_MIN	Minimum value for an object of type signed char	-127 (-27+1) or less*
SCHAR_MAX	Maximum value for an object of type signed char	127 (27-1) or greater*
UCHAR_MAX	Maximum value for an object of type unsigned char	255 (28-1) or greater*
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	either SCHAR_MAX or UCHAR_MAX
MB_LEN_MAX	Maximum number of bytes in a multibyte character, for any locale	1 or greater*
SHRT_MIN	Minimum value for an object of type short int	-32767 (-215+1) or less*
SHRT_MAX	Maximum value for an object of type short int	32767 (215-1) or greater*
USHRT_MAX	Maximum value for an object of type unsigned short int	65535 (216-1) or greater*
INT_MIN	Minimum value for an object of type int	-32767 (-215+1) or less*
INT_MAX	Maximum value for an object of type int	32767 (215-1) or greater*
UINT_MAX	Maximum value for an object of type unsigned int	65535 (216-1) or greater*
LONG_MIN	Minimum value for an object of type long int	-2147483647 (-231+1) or less*
LONG_MAX	Maximum value for an object of type long int	2147483647 (231-1) or greater*
ULONG_MAX	Maximum value for an object of type unsigned long int	4294967295 (232-1) or greater*
LLONG_MIN	Minimum value for an object of type long long int	-9223372036854775807 (-263+1) or less*
LLONG_MAX	Maximum value for an object of type long long int	9223372036854775807 (263-1) or greater*
ULLONG_MAX	Maximum value for an object of type unsigned long long int	18446744073709551615 (264-1) or greater*