Re: Copy constructor, return by value and const references

using namespace std

class A {
private:
     friend A createA(); // private default constructor
     A() { cout << "default constructor" << endl; };
     A(const A& from) { // private copy constructor
         cout << "copy constructor" << endl;
     }
public:
     int get() {
         return 1;
     }
};

A createA() {
     return A();
}

int main(int, char**)
{
     createA().get(); // this compiles
     const A& ref(createA()); // "error: A::A(const A&) is private"
}