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A comment on Auto Type Deduction in C++ Range-Based For Loops. Parent comment

Re:Auto Type Deduction in C++ Range-Based For Loops by gpderetta on Friday September 02, 2016 @02:18PM (#12415030)
references prolong the lifetime of temporaries. It wouldn't work in this case:

vector<int> v =...; const auto& x = v[59]; v.clear(); // x is dangling

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