14 Jan Data Types in C

In programming, a data type defines the kind of data that can be stored and manipulated within a program. It determines the values that a variable can hold and the operations that can be performed on it.

C offers a variety of data types that allow you to store different kinds of values. Here’s a breakdown of the primary data types:

1. Basic data types
2. Derived data types

Basic Data Type

Basic data types are the fundamental data types provided by C. Here’s a breakdown of the basic data types:

• int: Used for integers. Store integer values.
• float: Used for single-precision floating-point numbers. The size is 4 bytes.
• double: Used for double-precision floating-point numbers. The size is 8 bytes.
  Preferred when higher precision is required.
• char: Used to store single characters. Strings in C are arrays of chars terminated by a null character.

Here is how we use data types in C:

Derived Data Type

Derived data types are built from the basic data types. Each of these derived data types offers unique ways to store and manipulate data in C:

• Arrays: Collection of elements of the same type.
• Pointers: Variables that store the memory address of another variable.
• Structures (struct): Used to group different data types into a single unit.
• Unions (union): Similar to structures, but they share the same memory location for their members.
• Enumeration (enum): A user-defined data type that consists of integral constants.

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Read More:

• C – First Program
• C – Comments
• C – Tokens
• C – Variables
• C – Constants
• C – Operators
• C – Decision-Making Statements
• C – Arrays
• C – Strings