C++ While Loop

In C++, The while loop loops through a block of code as long the specified condition is met and equal to true:

C++ While Loop Syntax

while (condition) {
  // code block to be executed while condition is met
}

Example of C++ While loop

#include <iostream>

using namespace std;

int main() {
  int i = 0;
  while (i < 3) {
    cout << i << "\n";
    i++;
  }
  return 0;
}

Output

0
1
2

In this example you can see that the loop will keep executing while i is less than value 3.

Another example of C++ While loop

#include <iostream>

using namespace std;

int main() {
  int i = 0;
  while (i < 3) {
    cout << "My index is: " << i << "\n";
    i++;
  }
  return 0;
}

Output

My index is: 0
My index is: 1
My index is: 2

Conclusion

In this page (written and validated by A. Gawali) you learned about C++ While Loop . What's Next? If you are interested in completing Cpp tutorial, your next topic will be learning about: Cpp Do While Loop.

Incorrect info or code snippet? We take very seriously the accuracy of the information provided on our website. We also make sure to test all snippets and examples provided for each section. If you find any incorrect information, please send us an email about the issue: mockstacks@gmail.com.

Share On:

Mockstacks was launched to help beginners learn programming languages; the site is optimized with no Ads as, Ads might slow down the performance. We also don't track any personal information; we also don't collect any kind of data unless the user provided us a corrected information. Almost all examples have been tested. Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content. By using Mockstacks.com, you agree to have read and accepted our terms of use, cookies and privacy policy.