1//===----------------------------------------------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is dual licensed under the MIT and the University of Illinois Open
6// Source Licenses. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10// <unordered_map>
11
12// unordered_map(unordered_map&&)
13//        noexcept(is_nothrow_move_constructible<allocator_type>::value &&
14//                 is_nothrow_move_constructible<key_compare>::value);
15
16// This tests a conforming extension
17
18#include <unordered_map>
19#include <cassert>
20
21#include "../../../MoveOnly.h"
22#include "test_allocator.h"
23
24template <class T>
25struct some_comp
26{
27    typedef T value_type;
28    some_comp(const some_comp&);
29};
30
31template <class T>
32struct some_hash
33{
34    typedef T value_type;
35    some_hash();
36    some_hash(const some_hash&);
37};
38
39int main()
40{
41#if __has_feature(cxx_noexcept)
42    {
43        typedef std::unordered_map<MoveOnly, MoveOnly> C;
44        static_assert(std::is_nothrow_move_constructible<C>::value, "");
45    }
46    {
47        typedef std::unordered_map<MoveOnly, MoveOnly, std::hash<MoveOnly>,
48                           std::equal_to<MoveOnly>, test_allocator<std::pair<const MoveOnly, MoveOnly>>> C;
49        static_assert(std::is_nothrow_move_constructible<C>::value, "");
50    }
51    {
52        typedef std::unordered_map<MoveOnly, MoveOnly, std::hash<MoveOnly>,
53                          std::equal_to<MoveOnly>, other_allocator<std::pair<const MoveOnly, MoveOnly>>> C;
54        static_assert(std::is_nothrow_move_constructible<C>::value, "");
55    }
56    {
57        typedef std::unordered_map<MoveOnly, MoveOnly, some_hash<MoveOnly>> C;
58        static_assert(!std::is_nothrow_move_constructible<C>::value, "");
59    }
60    {
61        typedef std::unordered_map<MoveOnly, MoveOnly, std::hash<MoveOnly>,
62                                                         some_comp<MoveOnly>> C;
63        static_assert(!std::is_nothrow_move_constructible<C>::value, "");
64    }
65#endif
66}
67