Question

I am writing a function that just looks up values inside of a table. Is it possible to call that function inside of itself? I’ve seen stuff about this and self and don’t really understand it.

Answer 1

Yes, you can. It’s called recursion.

void foo(){
   foo(); //This is legal.
}

Of course you need to return from it to avoid infinite recursive calls. Failing to return will cause a stack overflow. Here’s a better example:

void foo(int n){
    if (n == 0)
        return;
    foo(--n);
}