C + + basic data type size and representation range

ANSI/C + + basic data types:

Type	Size	Range of values
No-value void	0 byte	No domain
boolean bool	1 byte	True False
signed short [int]/signed shorter [int]	2 byte	-32768~32767
Unsigned short-integer unsigned shorter [int]	2 byte	0~65535
Signed integral type int/signed [int]	4 byte	-2147483648~2147483647
unsigned integral type unsigned [int]	4 byte	0~4294967295
Signed long [int]/signed long [int]	4 byte	-2147483648~2147483647
unsigned long integer unsigned [int]	4 byte	0~4294967295
Long Long	8 byte	0~18446744073709552000
Signed character type char/signed Char	1 byte	-128~127
unsigned character type unsigned char	1 byte	0~255
Wide character type wchar_t (unsigned short.)	2 byte	0~65535
Single-precision float float	4 byte	-3.4e-38~3.4e+38
Double-precision floating-point double	8 byte	1.7e-308~1.7e+308
Long double	8 byte

C + + basic data type size and representation range