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std::{{{1}}}::reserve

من cppreference.com
void reserve( size_type count );
(since C++11)

Sets the number of buckets to the number needed to accomodate at least ‎count‎ elements without exceeding maximum load factor and rehashes the container, i.e. puts the elements into appropriate buckets considering that total number of buckets has changed. Effectively calls rehash(std::ceil(count / max_load_factor())).

محتويات

[تعديل] Parameters

count - new capacity of the container

[تعديل] Return value

(none)

[تعديل] Complexity

Average case linear in the size of the container, worst case quadratic.

[تعديل] See also

قالب:dsc mem fun