std::experimental::pmr::memory_resource::is_equal
From cppreference.com
                    
                                        
                    < cpp | experimental | memory resource
                    
                                                            
                    | bool is_equal(const memory_resource& other) const; | (library fundamentals TS) | |
Compares *this for equality with other. Two memory_resources compare equal if and only if memory allocated from one memory_resource can be deallocated from the other and vice versa.
Equivalent to return do_is_equal(other);.
[edit] Exceptions
noexcept specification:  
noexcept
  [edit] See also
| [virtual] | compare for equality with another memory_resource(virtual protected member function) |