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 // <set>
10 
11 // set(set&&)
12 //        noexcept(is_nothrow_move_constructible<allocator_type>::value &&
13 //                 is_nothrow_move_constructible<key_compare>::value);
14 
15 // This tests a conforming extension
16 
17 // UNSUPPORTED: c++98, c++03
18 
19 #include <set>
20 #include <cassert>
21 
22 #include "test_macros.h"
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(const some_comp&);
31     bool operator()(const T&, const T&) const { return false; }
32 };
33 
34 int main(int, char**)
35 {
36 #if defined(_LIBCPP_VERSION)
37     {
38         typedef std::set<MoveOnly> C;
39         static_assert(std::is_nothrow_move_constructible<C>::value, "");
40     }
41     {
42         typedef std::set<MoveOnly, std::less<MoveOnly>, test_allocator<MoveOnly>> C;
43         static_assert(std::is_nothrow_move_constructible<C>::value, "");
44     }
45     {
46         typedef std::set<MoveOnly, std::less<MoveOnly>, other_allocator<MoveOnly>> C;
47         static_assert(std::is_nothrow_move_constructible<C>::value, "");
48     }
49 #endif // _LIBCPP_VERSION
50     {
51         typedef std::set<MoveOnly, some_comp<MoveOnly>> C;
52         static_assert(!std::is_nothrow_move_constructible<C>::value, "");
53     }
54 
55   return 0;
56 }
57