Primitive Types

What type of things we can put inside a box

Primitive Types

Some basic things that we would put in a box

Variables are containers for values. We use different typed variables to store different typed values, e.g. integer, decimal, text.

These are the primitive types in C, the most basic variable types:

Type	Description	Example Literal
char	8-bit integer* for storing an ASCII character	'a'
int	16-bit/32-bit signed integer**	1
float	32-bit, single-precision floating point value (i.e. dotted number)	3.012f
double	64-bit, double-precision floating point value (i.e. a longer dotted number)	5.012345
void	the absence of type (i.e. no type)	/

• *Whether char is signed or unsigned is machine-dependent.

• **Size is compiler-dependent and machine-dependent.

Variable Declaration

int some_integer; // Declaring some_integer as a integer
char c; //Declaring c as a character
float f; //Declaring f as a 32-bit, single-precision floating point value