C++ while loops

C++ while loop statement allows the same code block to be run repeatedly until a condition is met. This tutorial will teach you how to use the while loop in C++.

The while loop is the most basic loop in C++. It has a control condition and executes as long as the condition is true. In this loop, the condition of the loop is tested before the body of the loop is executed. That's why it is called an entry-controlled loop.

The basic format of the while loop statement is:

Syntax:

while (condition)
{
    statement(s);
    Incrementation;
}

Figure - Flowchart of while loop:

cplusplus-while

Example C++ program to demonstrate the while loop:

Example:

#include <iostream>
using namespace std;

int main ()
{
    /* local variable Initialization */
    int n = 1, times=5;

    /* while loops execution */
    while( n <= times )
    {
        cout << "C++ while loops: " << n <<endl;
        n++;
    }
    return 0;
}

Program Output:

cplusplus-while-loop

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