template<typename A, typename B, typename enable_if<is_pointer<B>::value>::type* = nullptr>
void move(A &new_ob, B source){
    if(is_convertible<typeof(*source), A>::value)
        new_ob = (A)*source;
}

template<typename A, typename B, typename enable_if<!is_pointer<B>::value>::type* = nullptr>
void move(A &new_ob, B source){
    if(is_convertible<typeof(source), A>::value)
        new_ob = (A)source;
}