std::hash
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                    < cpp | memory | shared ptr
                    
                                                            
                    |   template<class T> struct hash<shared_ptr<T>>; 
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(since C++11) | |
The template specialization of std::hash for std::shared_ptr<T> allows users to obtain hashes of objects of type std::shared_ptr<T>.
For a given std::shared_ptr<T> p, this specialization ensures that std::hash<std::shared_ptr<T>>()(p) == std::hash<T*>()(p.get()).
[edit] Example
| This section is incomplete Reason: no example  | 
[edit] See also
|    (C++11) 
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   hash function object   (class template)  |