std::unordered_set (3) Linux Manual Page

std::unordered_set<Key,Hash,KeyEqual,Allocator>::~unordered_set – std::unordered_set<Key,Hash,KeyEqual,Allocator>::~unordered_set

Synopsis

~unordered_set(); (since C++11)
Destructs the container. The destructors of the elements are called and the used storage is deallocated. Note, that if the elements are pointers, the pointed-to objects are not destroyed.

Complexity

Linear in the size of the container.