Is there a way to define variables of two different types in a for loop initializer?

Question

You can define 2 variables of the same type in a for loop:

int main() {
  for (int i = 0, j = 0; i < 10; i += 1, j = 2*i) {
    cout << j << e         


        

Answer 1

This will make the iterator (or in this case, float) disappear when it's no more needed:

int main() {
  // some code...

  {
    float j = 0.0;
    for (int i = 0; i < 10; i += 1, j = 2*i) {
      cout << j << endl;
    }
  }

  // more code...
}