Is there a way to resize a std::vector to lower capacity when I no longer need previously reserved space?
Is there a way to resize a std::vector to lower capacity when I no
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Is there a way to resize a std::vector to lower capacity when I no longer need previously reserved space?
Effective STL, by Scott Meyers, Item 17: Use the
swaptrick to trim excess capacity.After that,
personsis ‘shrunk to fit’.This relies on the fact that
vector‘s copy constructor allocates only as much as memory as needed for the elements being copied.