Declare an object inside or outside a loop?

Question

Is there any performance penalty for the following code snippet?

for (int i=0; i         


        

Answer 1

I've always thought that most compilers these days are smart enough to do the latter option. Assuming that's the case, I would say the first one does look nicer as well. If the loop gets very large, there's no need to look all around for where o is declared.