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_set>
11
12 // unordered_multiset& operator=(unordered_multiset&& c)
13 // noexcept(
14 // allocator_type::propagate_on_container_move_assignment::value &&
15 // is_nothrow_move_assignable<allocator_type>::value &&
16 // is_nothrow_move_assignable<key_compare>::value);
17
18 // This tests a conforming extension
19
20 #include <unordered_set>
21 #include <cassert>
22
23 #include "../../../MoveOnly.h"
24 #include "test_allocator.h"
25
26 template <class T>
27 struct some_comp
28 {
29 typedef T value_type;
30 some_comp& operator=(const some_comp&);
31 };
32
33 template <class T>
34 struct some_hash
35 {
36 typedef T value_type;
37 some_hash();
38 some_hash(const some_hash&);
39 some_hash& operator=(const some_hash&);
40 };
41
main()42 int main()
43 {
44 #if __has_feature(cxx_noexcept)
45 {
46 typedef std::unordered_multiset<MoveOnly> C;
47 static_assert(std::is_nothrow_move_assignable<C>::value, "");
48 }
49 {
50 typedef std::unordered_multiset<MoveOnly, std::hash<MoveOnly>,
51 std::equal_to<MoveOnly>, test_allocator<MoveOnly>> C;
52 static_assert(!std::is_nothrow_move_assignable<C>::value, "");
53 }
54 {
55 typedef std::unordered_multiset<MoveOnly, std::hash<MoveOnly>,
56 std::equal_to<MoveOnly>, other_allocator<MoveOnly>> C;
57 static_assert(std::is_nothrow_move_assignable<C>::value, "");
58 }
59 {
60 typedef std::unordered_multiset<MoveOnly, some_hash<MoveOnly>> C;
61 static_assert(!std::is_nothrow_move_assignable<C>::value, "");
62 }
63 {
64 typedef std::unordered_multiset<MoveOnly, std::hash<MoveOnly>,
65 some_comp<MoveOnly>> C;
66 static_assert(!std::is_nothrow_move_assignable<C>::value, "");
67 }
68 #endif
69 }
70