C + + Template programming-12th Chapter special and overloaded

Consideration of the efficiency of the program

Template<typename t> inlinevoid swap (t *a, T * b) {    T tmp (*a);     *a = *b;     *b = tmp;}

The above code actually makes three copies, which is obviously a waste of time if the size of the type is larger. The solution is to define a more efficient member function for the interchange for a particular type-it's not the point, but the point is I've never thought about it before!

C + + Template programming-12th Chapter special and overloaded