C Language

C Intro

C Overview

C Tokens

C Constants

C Data types

C Operators

C Expressions

C I/O Operations

C Decision - Branching

C Decision - Looping

C Arrays

C String

C Functions

C Structure

C DMA

C Linked lists

C File Management

C Decision Making - Branching

Contents

A C Program is a set of statements which are normally executed sequentially in the order in which they appear. In practice, we have a number of situations where we may have to change the order of execution of statements based on certain conditions, or repeat a group of statements until certain specified condition are met.
This involves a kind of decision making to see whether a particular condition has occurred or not and then direct the computer to execute certain statements accordingly.
C language possesses such decision-making capabilities by supporting the following statements.

• If statement
• Switch Statement
• Conditional Operator Statement
• Goto statement

This statement are known as decision-making statements and control statement.

• Branching
• if Statement
• The If else construct
• Compound Relational tests
• Nested if Statement
• The ELSE If Ladder
• The Switch Statement
• The GOTO statement

Branching

The C language programs presented until now follows a sequential form of execution of statements.
Many times it is required to alter the flow of the sequence of instructions.
C language provides statements that can alter the flow of a sequence of instructions.
These statements are called control statements.
These statements help to jump from one part of the program to another.
The control transfer may be conditional or unconditional.