Wrap a Derived Class method to pass to a closed API call using templated function

WrapMethod.cpp

#include <iostream>

using namespace std;

struct A {
    // Use this to wrap method from a derived class
    template <typename Class, void (Class::*method)()>
    void makeCall() {
        (dynamic_cast<Class*>(this)->*method)();
    }
    
    virtual ~A() = default;
};

struct B: public A {
    void sayHi() {
        cout << "Hi!" << endl;
    }
};


void doCall(A& a, void (A::*call)()) { // assumption: a closed API call / method
    (a.*call)();
}

int main()
{
    B b;
    
    doCall(b, &A::makeCall<B, &B::sayHi>); // this works
    // doCall(b, &B::sayHi); //  error: cannot convert ‘void (B::*)()’ to ‘void (A::*)()’

    return 0;
}