Data Types in C

Data type tell us that how much storage/memory to be allowed to a variable.

Types	Data Types
Basic data type	int,char,float,double
Derived data type	Array,pointer,structure,union
Enumeration data type	Enum
Void data type	void

Basic data type:

They are arithmetic types and are further classified into: (a) integer types and (b) floating-point types.
Memory size of data type may change according to 32-bit or 64-bit operating system.

Data Type	Memory Size	Range
Char	1 byte	−128 to 127
signed char	1 byte	−128 to 127
unsigned char	1 byte	0 to 255
short	2 Byte	-32,768 to 32,767
signed short	2 byte	-32,768 to 32,767
unsigned short	2 byte	0 to 65,535
int	2 byte	−32,768 to 32,767
signed int	2 byte	−32,768 to 32,767
unsigned int	2 byte	0 to 65,535
short int	2 byte	−32,768 to 32,767
signed short int	2 byte	−32,768 to 32,767
unsigned short int	2 byte	0 to 65,535
long int	4 byte	-2,147,483,648 to 2,147,483,647
signed long int	4 byte	-2,147,483,648 to 2,147,483,647
unsigned long int	4 byte	0 to 4,294,967,295
float	4 byte	-2,147,483,648 to 2,147,483,647
double	8 byte	-2,147,483,648 to 2,147,483,647
long double	10 byte	0 to 4,294,967,295