1
2//===----------------------------------------------------------------------===//
3//
4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
5// See https://llvm.org/LICENSE.txt for license information.
6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7//
8//===----------------------------------------------------------------------===//
9
10// <unordered_map>
11
12// Check that std::unordered_multimap and its iterators can be instantiated with an incomplete
13// type.
14
15#include <unordered_map>
16
17#include "test_macros.h"
18
19template <class Tp>
20struct MyHash {
21 MyHash() {}
22 std::size_t operator()(Tp const&) const {return 42;}
23};
24
25struct A {
26 typedef std::unordered_multimap<A, 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
34inline bool operator==(A const& L, A const& R) { return &L == &R; }
35
36int main(int, char**) {
37 A a;
38
39 return 0;
40}
41

source code of libcxx/test/std/containers/unord/unord.multimap/incomplete.pass.cpp