C++17 Quick Syntax Reference: A Pocket Guide to the Language, APIs and Library

© Mikael Olsson 2018

Mikael OlssonC++17 Quick Syntax Referencehttps://doi.org/10.1007/978-1-4842-3600-0_10

10. Loops

Mikael Olsson¹ 

(1)

Hammarland, Finland

 

There are three looping structures available in C++, all of which are used to execute a specific code block multiple times. Just as with the conditional if statement, the curly brackets for the loops can be left out if there is only one statement in the code block.

While Loop

The while loop runs through the code block only if its condition is true and will continue looping for as long as the condition remains true. Bear in mind that the condition is only checked at the start of each iteration (loop).

int i = 0;

while (i < 10) {

  cout << i++; // 0-9

}

Do-while Loop

The do-while loop works ...