21                   struct ordered_map : std::vector<std::pair<const Key, T>, Allocator>  struct
23     using key_type = Key;
24     using mapped_type = T;
25     using Container = std::vector<std::pair<const Key, T>, Allocator>;
33     ordered_map(const Allocator& alloc = Allocator()) : Container{alloc} {}  in ordered_map()  argument
35     ordered_map(It first, It last, const Allocator& alloc = Allocator())  in ordered_map()  function
37     ordered_map(std::initializer_list<T> init, const Allocator& alloc = Allocator() )  in ordered_map()  argument
40     std::pair<iterator, bool> emplace(const key_type& key, T&& t)  in emplace()
53     T& operator[](const Key& key)  in operator []()
58     const T& operator[](const Key& key) const  in operator []()
63     T& at(const Key& key)  in at()
76     const T& at(const Key& key) const  in at()
89     size_type erase(const Key& key)  in erase()
108     iterator erase(iterator pos)  in erase()
122     size_type count(const Key& key) const  in count()
134     iterator find(const Key& key)  in find()
146     const_iterator find(const Key& key) const  in find()
158     std::pair<iterator, bool> insert( value_type&& value )  in insert()
163     std::pair<iterator, bool> insert( const value_type& value )  in insert()
177 …ename std::enable_if<std::is_convertible<typename std::iterator_traits<InputIt>::iterator_category,
181     void insert(InputIt first, InputIt last)  in insert()