std::map::value_comp
From cppreference.com
                    
                                        
                    
                    
                                                            
                    |   std::map::value_compare value_comp() const;  | 
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Returns the function object that compares objects of type std::map::value_type (key-value pairs) by comparing of the first components of the pairs.
Contents | 
[edit] Parameters
(none)
[edit] Return value
the value comparison function object.
[edit] Complexity
Constant
[edit] See also
|    returns the function that compares keys  (public member function)  | |