1 2 3 //===----------------------------------------------------------------------===// 4 // 5 // The LLVM Compiler Infrastructure 6 // 7 // This file is dual licensed under the MIT and the University of Illinois Open 8 // Source Licenses. See LICENSE.TXT for details. 9 // 10 //===----------------------------------------------------------------------===// 11 12 // <unordered_set> 13 14 // Check that std::unordered_set and its iterators can be instantiated with an incomplete 15 // type. 16 17 #include <unordered_set> 18 19 template <class Tp> 20 struct MyHash { MyHashMyHash21 MyHash() {} operator ()MyHash22 std::size_t operator()(Tp const&) const {return 42;} 23 }; 24 25 struct A { 26 typedef std::unordered_set<A, MyHash<A> > Map; 27 Map m; 28 Map::iterator it; 29 Map::const_iterator cit; 30 Map::local_iterator lit; 31 Map::const_local_iterator clit; 32 }; 33 operator ==(A const & L,A const & R)34inline bool operator==(A const& L, A const& R) { return &L == &R; } 35 main()36int main() { 37 A a; 38 } 39