How can it return b

Question

b is of type U but return type of the function is T

template <class T, class U>
T smaller(T a, U b) {
return (a < b ? a : b);
}

Answer 1

I understand now
It will return T type only
First it will convert b into T type and return it

Answer 2

You may need a refresher on templates.

http://www.cplusplus.com/doc/oldtutorial/templates/

Answer 3

What? Post your code please