What is the scope of a 'while' and 'for' loop?

Question

What is the scope of a while and for loop?

For example, if I declared an object within the loop, what is its behavior and why?

Answer 1

Just wanted to add that variables declared in the for or while loop are also scoped within the loop. For example:

for (int index = 0; index < SOME_MAX; ++index)
{
    ...
}

// index is out of scope here.