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C++ Loops

Sometimes, you may need to execute the same block of code multiple times. In general, statements are executed sequentially: The first statement in a function is executed first, followed by the second, and so on.

Programming languages provide various control structures that allow for more complicated execution paths.

Loop statements allow us to execute a statement or group of statements multiple times. The following is the general form of a loop statement in most programming languages:

Loop Structure

Loop Types

C++ programming language provides the following types of loops to handle looping requirements. Click the following links to check their details.

Loop Type	Description
while loop	Repeats a statement or group of statements while a given condition is true. It tests the condition before executing the loop body.
for loop	Executes a sequence of statements multiple times and abbreviates the code that manages the loop variable.
do...while loop	Similar to a while statement, except that it tests the condition at the end of the loop body.
Nested loops	You can use one or more loops inside any while, for, or do..while loop.

Loop Control Statements

Loop control statements change execution from its normal sequence. When execution leaves a scope, all automatic objects that were created in that scope are destroyed.

C++ provides the following control statements. Click the following links to check their details.

Control Statement	Description
break statement	Terminates the loop or switch statement and transfers execution to the statement immediately following the loop or switch.
continue statement	Causes the loop to skip the remainder of its body and immediately retest its condition prior to reiterating.
goto statement	Transfers control to a labeled statement. Note: It is recommended not to use goto statement in your program.

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Cpp Loops