c++ - Is there any downside in std::get_temporary_buffer and std::raw_storage_iterator? -


recently heard of get_temporary_buffer , raw_storage_iterator's, seem great. in each copy it's possible avoid initialization of n elements, improve performance significantly.

but have worked c++ pretty much, , didn't see anywhere usage of functionalities. there downside? why people don't use them often? why shouldn't use them every time want copy (in new container, of course)?


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