You've answered 0 of 163 questions correctly. (Clear)
Question #145 Difficulty:
According to the C++17 standard, what is the output of this program?
#include <iostream>
struct E
{
E() { std::cout << "1"; }
E(const E&) { std::cout << "2"; }
~E() { std::cout << "3"; }
};
E f()
{
return E();
}
int main()
{
f();
}
Hint:
Does a prvalue create an object?
Problems? View a hint or try another question.
I give up, show me the answer (make 3 more attempts first).
Mode : Training
You are currently in training mode, answering random questions. Why not Start a new quiz? Then you can boast about your score, and invite your friends.
Contribute
Android app
Get Sergey Vasilchenko's CppQuiz Android app.