std::pmr::unsynchronized_pool_resource::~unsynchronized_pool_resource
From cppreference.com
                    
                                        
                    < cpp | memory | unsynchronized pool resource
                    
                                                            
                    |   virtual ~unsynchronized_pool_resource();  | 
(since C++17) | |
Destroys a unsynchronized_pool_resource.
Deallocates all memory owned by this resource by calling this->release().
See also
|    Release all allocated memory  (public member function)  |