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 // <map>
10
11 // multimap& operator=(multimap&& c)
12 // noexcept(
13 // allocator_type::propagate_on_container_move_assignment::value &&
14 // is_nothrow_move_assignable<allocator_type>::value &&
15 // is_nothrow_move_assignable<key_compare>::value);
16
17 // This tests a conforming extension
18
19 // UNSUPPORTED: c++03
20
21 #include <map>
22 #include <cassert>
23
24 #include "test_macros.h"
25 #include "MoveOnly.h"
26 #include "test_allocator.h"
27
28 template <class T>
29 struct some_comp
30 {
31 typedef T value_type;
32 some_comp& operator=(const some_comp&);
operator ()some_comp33 bool operator()(const T&, const T&) const { return false; }
34 };
35
main(int,char **)36 int main(int, char**)
37 {
38 typedef std::pair<const MoveOnly, MoveOnly> V;
39 {
40 typedef std::multimap<MoveOnly, MoveOnly> C;
41 static_assert(std::is_nothrow_move_assignable<C>::value, "");
42 }
43 {
44 typedef std::multimap<MoveOnly, MoveOnly, std::less<MoveOnly>, test_allocator<V>> C;
45 static_assert(!std::is_nothrow_move_assignable<C>::value, "");
46 }
47 #if defined(_LIBCPP_VERSION)
48 {
49 typedef std::multimap<MoveOnly, MoveOnly, std::less<MoveOnly>, other_allocator<V>> C;
50 static_assert(std::is_nothrow_move_assignable<C>::value, "");
51 }
52 #endif // _LIBCPP_VERSION
53 {
54 typedef std::multimap<MoveOnly, MoveOnly, some_comp<MoveOnly>> C;
55 static_assert(!std::is_nothrow_move_assignable<C>::value, "");
56 }
57
58 return 0;
59 }
60