C Programming Language

Datatypes

Hello friends, in this article, I am going to discuss about Datatypes in C Programming Language. A Datatype, as the name implies, specifies the type of data being utilized. We must indicate the type of data whenever we define a variable or use any data in a C language program so that the compiler knows what to expect. Broadly, data types can divided into five categories:

• Basic

Example: character, integer, floating-point, double.

• Derived

Example: Array, structure, union, etc.

• Enumeration

Example: enums

• Bool type

Example: true or false

• void

Example: Empty value

C Primary Data types

There are five basic(primary or primitive) datatypes. They are

· Character

· Integer

· Floating-point

· Double

· Void

These data types can be specified using keywords.

Every data type has a size specified in bits/bytes, and a range of values that it may hold.

Size of different Datatypes

The size of various data types is determined by the compiler and processor used.

char-1 byte

int-2 bytes/4 bytes

float-4 bytes

double-8 bytes

void-0 byte

C Datatype Modifiers

In the C language, there are 4 datatype modifiers, that are used along with the basic data types to categorize them further.

· signed

· unsigned

· long

· short

Signed and unsigned are used to represent signed(+ and -) and unsigned(only +) values for any data type, as their names imply. And the range of values for any datatype is affected by long and short.

example: signed int, unsigned int, short int, long int, etc..

C Datatype Value Range