Code Examples

Character Warnings

Sizeof Operator

char      signed char       unsigned char
Plain char is the same as one of the others.

short int       int       long int       long long int
signed short int       signed int       signed long int       signed long long int
Plain is the same as signed.

unsigned short int       unsigned int       unsigned long int       unsigned long long int

Basic Floating Types

float       double       long double

Abbreviations

short       long       long long

Sizes of Basic Integer Types

		Minimum Size		Typical Size
Type		(bytes)		(bytes)
char		1		1
short		2		2
int		2		4
long		4		4
long long		8		8
float		4		4
double		8		8
long double		8		12

The long long type is part of the C standard, not C++, but compilers will often support it anyway.

Use sizeof to find the size of a type.

Character Warnings

Sizeof Operator