Multiset to vector, C++
How to copy last k items from std::multiset in rev开发者_开发技巧ersed order to std::vector as fast as possible?
If you use the non-standard copy_n
(you can easily roll your own), you can just do this:
std::copy_n(your_multiset.rbegin(), k, std::back_inserter(your_vector));
copy_n
is part of C++1x, so there this solution is fully standard. If you want speed, it might be faster to reserve space in the vector in advance to save reallocations.
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