A test to see if objects can be moved out of optional

optional-move.cpp

#include <iostream>
#include <optional>

struct A
{
    A() { }
    A(A const& a) { std::cout << "move construction failed!\n"; }
    A(A&& o) { std::cout << "moved construction worked!\n"; }
    A& operator=(A const& other) {
        std::cout << "move assignment failed!\n";
        return *this;
    }
    A& operator=(A&& other) {
        std::cout << "move assignment worked!\n";
        return *this;
    }
};

int main()
{
    // move construction worked
    std::optional<A> test = A();
    A b;
    // move assignment worked
    b = std::move(*test);
}