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Question #281 Difficulty: 1

According to the C++23 standard, what is the output of this program? 

    #include <iostream>
#include <utility>

class C
{
public:
    C(){}
    C(const C&){} // User-declared, disables move constructor
};

int main()
{
    C c;
    C c2(std::move(c));
    std::cout << "ok";
}

Hint:

A move constructor will not be implicitly declared if the user declares a copy constructor. But do we need a move constructor to initialize c2?

Answer:

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