Languages & Frameworks
C / C++
6 practice questions. Free questions open a full answer guide; the rest unlock with Pro.
- In C++, when would you pass a function argument by value versus by const reference, and why does it matter?
- In C++, what's the difference between passing an argument by value, by reference, and by const reference?Go Pro
- In modern C++, what is RAII, and how do smart pointers like unique_ptr and shared_ptr build on it?Go Pro
- In C++, what's the difference between std::unique_ptr and std::shared_ptr, and how do they help you manage memory?Go Pro
- In modern C++, how do you decide between unique_ptr, shared_ptr, and a raw pointer, and what is RAII?Go Pro
- Explain move semantics in C++: what an rvalue reference is, what std::move actually does, and when a move happens instead of a copy.Go Pro
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