42 lines · cpp
1 2 3//===----------------------------------------------------------------------===//4//5// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.6// See https://llvm.org/LICENSE.txt for license information.7// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception8//9//===----------------------------------------------------------------------===//10 11// <unordered_set>12 13// Check that std::unordered_multiset and its iterators can be instantiated with an incomplete14// type.15 16#include <unordered_set>17 18#include "test_macros.h"19 20template <class Tp>21struct MyHash {22 MyHash() {}23 std::size_t operator()(Tp const&) const { return 42; }24};25 26struct A {27 typedef std::unordered_multiset<A, MyHash<A> > Map;28 Map m;29 Map::iterator it;30 Map::const_iterator cit;31 Map::local_iterator lit;32 Map::const_local_iterator clit;33};34 35inline bool operator==(A const& L, A const& R) { return &L == &R; }36 37int main(int, char**) {38 A a;39 40 return 0;41}42