Data Types in C

Categories: C language

A data type specifies the type of data that a variable can store such as integer, floating, character, etc.

There are the following data types in C language.

TypesData Types

Basic Data Typeint, char, float, double

Derived Data Typearray, pointer, structure, union

Enumeration Data Typeenum

Void Data Typevoid


Basic Data Types

The basic data types are integer-based and floating-point based. C language supports both signed and unsigned literals.The memory size of the basic data types may change according to 32 or 64-bit operating system.

Let's see the basic data types. Its size is given according to 32-bit architecture.


Data TypesMemory SizeRange

char1 byte−128 to 127

signed char1 byte−128 to 127

unsigned char1 byte0 to 255

short2 byte−32,768 to 32,767

signed short2 byte−32,768 to 32,767

unsigned short2 byte0 to 65,535

int2 byte−32,768 to 32,767

signed int2 byte−32,768 to 32,767

unsigned int2 byte0 to 65,535

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