Concatenating two std::vectors

Question

How do I concatenate two std::vectors?

Answer 1

With C++11, I'd prefer following to append vector b to a:

std::move(b.begin(), b.end(), std::back_inserter(a));

when a and b are not overlapped, and b is not going to be used anymore.

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This is std::move from , not the usual std::move from .