How to read from std vector front and remove read variable?
Is it:
v.front();
v.erase(v.begin());
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4You didn't exactly do anything with the value you got from it. If this is all you're doing, you might consider something like a stack, though, depending on what else you need to do with it. – chris Dec 07 '12 at 06:10
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3Removing from the front is expensive. – Pubby Dec 07 '12 at 06:17
1 Answers
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That looks about right, but consider switching to a std::deque which has a pop_front function (which won't have to move all the elements in the container)
Andreas Brinck
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For that single operations, yes, but depending on what else you do with `v` it might still make sense to continue using a `vector`. – Andreas Brinck Dec 07 '12 at 08:25