Can we return objects having a deleted/private copy/move constructor by value from a function?

Question

In C++03 it is impossible to return an object of a class having a private non-defined copy constructor by value:

struct A { A(int x) { ... } private: A(A con         


        

Answer 1

The above code is still ill-formed in C++11. But you could add a public move constructor to A and then it would be legal:

struct A
{
    A(int x) {}
    A(A&&);
private:
    A(A const&);
};

A f() {
  return A(10); // Ok!
}