Overhead to using std::vector?

Question

I know that manual dynamic memory allocation is a bad idea in general, but is it sometimes a better solution than using, say, std::vector?

To give a crude e

Answer 1

If you know the size in advance (especially at compile time), and don't need the dynamic re-sizing abilities of std::vector, then using something simpler is fine.

However, that something should preferably be std::array if you have C++11, or something like boost::scoped_array otherwise.

I doubt there'll be much efficiency gain unless it significantly reduces code size or something, but it's more expressive which is worthwhile anyway.