std::unorde...ap::reserve(3) C++ Standard Libary std::unorde...ap::reserve(3) NAME std::unordered_multimap::reserve - std::unordered_multimap::reserve Synopsis void reserve( size_type count ); (since C++11) Sets the number of buckets to the number needed to accommodate at least count elements without exceeding maximum load factor and rehashes the con- tainer, 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())). Parameters count - new capacity of the container Return value (none) Complexity Average case linear in the size of the container, worst case quadratic. See also reserves at least the specified number of buckets and regenerates the hash rehash table (public member function) http://cppreference.com 2024.06.10 std::unorde...ap::reserve(3)
NAME | Synopsis | Parameters | Return value | Complexity | See also
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