Code AnalysisIntermediate 60s
Missing std::forward loses value category
Why does this wrapper copy instead of moving when given an rvalue?
Starter code
#include <utility>
struct Widget { Widget(Widget&&); Widget(const Widget&); };
template <class T>
void relay(T&& arg) {
Widget w(arg); // arg is an lvalue expression here
}Think you can answer under pressure?
Get matched and answer live questions in 3-minute 1v1 battles. Elo ranking, badge tiers and bragging rights on the line.