#include <iostream>
 
// === library code ===
struct A {
    int x, y;
    A(int x, int y) : x(x), y(y) {}
};
A getSomeA(int x, int y) {
    return A(x, y);
}
// === end of library code ===
 
class B : public A {
public:
    B (A &&a) : A(a), someOtherMember(a.x + a.y) {}
 
    // added public stuff:
    int someOtherFunction() const { return someOtherMember; }
 
private:
    // added private stuff:
    int someOtherMember;
};
 
int main() {
    B b(getSomeA(32, 10));
    std::cout << b.x << ", " << b.y << std::endl;
    std::cout << b.someOtherFunction() << std::endl;
};
 

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