40   class const_iterator {};  class in std::vector
41   const_iterator begin() { return const_iterator{}; }  in begin()
52   iterator emplace(const_iterator pos, Args &&...args){};  in emplace()
62   class const_iterator {};  class in std::list
63   const_iterator begin() { return const_iterator{}; }  in begin()
72   iterator emplace(const_iterator pos, Args &&...args){};  in emplace()
86   class const_iterator {};  class in std::deque
87   const_iterator begin() { return const_iterator{}; }  in begin()
96   iterator emplace(const_iterator pos, Args &&...args){};  in emplace()
110   class const_iterator {};  class in std::forward_list
111   const_iterator begin() { return const_iterator{}; }  in begin()
119   iterator emplace_after(const_iterator pos, Args &&...args){};  in emplace_after()
128   class const_iterator {};  class in std::set
129   const_iterator begin() { return const_iterator{}; }  in begin()
134   iterator emplace_hint(const_iterator pos, Args &&...args){};  in emplace_hint()
143   class const_iterator {};  class in std::map
144   const_iterator begin() { return const_iterator{}; }  in begin()
149   iterator emplace_hint(const_iterator pos, Args &&...args){};  in emplace_hint()
158   class const_iterator {};  class in std::multiset
159   const_iterator begin() { return const_iterator{}; }  in begin()
164   iterator emplace_hint(const_iterator pos, Args &&...args){};  in emplace_hint()
173   class const_iterator {};  class in std::multimap
174   const_iterator begin() { return const_iterator{}; }  in begin()
179   iterator emplace_hint(const_iterator pos, Args &&...args){};  in emplace_hint()
188   class const_iterator {};  class in std::unordered_set
189   const_iterator begin() { return const_iterator{}; }  in begin()
194   iterator emplace_hint(const_iterator pos, Args &&...args){};  in emplace_hint()
203   class const_iterator {};  class in std::unordered_map
204   const_iterator begin() { return const_iterator{}; }  in begin()
209   iterator emplace_hint(const_iterator pos, Args &&...args){};  in emplace_hint()
218   class const_iterator {};  class in std::unordered_multiset
219   const_iterator begin() { return const_iterator{}; }  in begin()
224   iterator emplace_hint(const_iterator pos, Args &&...args){};  in emplace_hint()
233   class const_iterator {};  class in std::unordered_multimap
234   const_iterator begin() { return const_iterator{}; }  in begin()
239   iterator emplace_hint(const_iterator pos, Args &&...args){};  in emplace_hint()