Readme.md

12. break and continue statements

Sometimes you may want a loop to end pre-maturely if a specific condition(s) are met, or you may want to skip the execution of certain code blocks within the loop. break and continue statements help manage that logic.

break statement

for (int i = 0; i < 10; i++) {
  if (i == 4) {
    break;
  }
  cout << i << "\n";
}

In the above example, there is an if statement check that if i == 4 is true would break the for loop via the break statement. This break happens even if the loops condition i > 10 remains true.

continue statement

for (int i = 0; i < 10; i++) {
  if (i == 4) {
    continue;
  }
  cout << i << "\n";
}

In the above example, a condition is checked for i == 4, if true, then the rest of the code block is not executed, and the loop continues onto the next iteration.

while loop example

break and continue statements may also be used in while loops.

int i = 0;
while (i < 10) {
  
  if (i == 7) {
    i++;
    
    // go back to the start of the while loop
    continue;
  }
  
  cout << i << "\n";
  i++;
  
  if (i >= 7) {
    // break out of the while loop
    break;
  }
}