附錄A基礎資料型別

型態名稱	位元組	範圍
int,signed,signed int	4	–2,147,483,648 to 2,147,483,647
unsigned,unsigned int	4	0 to 4,294,967,295
short,short int, signed short int	2	–32,768 to 32,767
unsigned short,unsigned short int	2	0 to 65,535
long long,long long int, signed long long	8	–9,223,372,036,854,775,808 to 9,223,372,036,854,775,807
unsigned long long,unsigned long long int	8	0 to 18,446,744,073,709,551,615
long,long int, signed long int	4	–2,147,483,648 to 2,147,483,647
unsigned long,unsigned long int	4	0 to 4,294,967,295
float	4	3.4E +/- 38 (7 digits)
double	8	1.7E +/- 308 (15 digits)
long double	8	1.7E +/- 308 (15 digits)
signed char	1	–128 to 127
unsigned char	1	0 to 255
wchar	2	0 to 65,535
bool	1	false or true
enum	varies	none