1//===----------------------------------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#ifndef NOTCONSTRUCTIBLE_H
10#define NOTCONSTRUCTIBLE_H
11
12#include <functional>
13
14class NotConstructible
15{
16 NotConstructible(const NotConstructible&);
17 NotConstructible& operator=(const NotConstructible&);
18public:
19};
20
21inline
22bool
23operator==(const NotConstructible&, const NotConstructible&)
24{return true;}
25
26namespace std
27{
28
29template <>
30struct hash<NotConstructible>
31{
32 typedef NotConstructible argument_type;
33 typedef std::size_t result_type;
34
35 std::size_t operator()(const NotConstructible&) const {return 0;}
36};
37
38}
39
40#endif // NOTCONSTRUCTIBLE_H
41

source code of libcxx/test/std/containers/NotConstructible.h