Why member functions can't be used as template arguments?

Question

Why member functions cannot be used as template arguments? For example, I want to do like:

struct Foo {
    void Bar() { // do something
    }
};
template &         


        

Answer 1

They can be used as non-type parameters, but you need to use the right syntax

struct Foo {
    void Bar() { // do something
    }
};
template 
void Call(TOwner *p) {
    (p->*func)();
}
int main() {
    Foo a;
    Call(&a);
    return 0;
}