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 // <list>
11 
12 // list& operator=(list&& c)
13 //     noexcept(
14 //          allocator_type::propagate_on_container_move_assignment::value &&
15 //          is_nothrow_move_assignable<allocator_type>::value);
16 
17 // This tests a conforming extension
18 
19 #include <list>
20 #include <cassert>
21 
22 #include "MoveOnly.h"
23 #include "test_allocator.h"
24 
25 template <class T>
26 struct some_alloc
27 {
28     typedef T value_type;
29     some_alloc(const some_alloc&);
30 };
31 
main()32 int main()
33 {
34 #if __has_feature(cxx_noexcept)
35     {
36         typedef std::list<MoveOnly> C;
37         static_assert(std::is_nothrow_move_assignable<C>::value, "");
38     }
39     {
40         typedef std::list<MoveOnly, test_allocator<MoveOnly>> C;
41         static_assert(!std::is_nothrow_move_assignable<C>::value, "");
42     }
43     {
44         typedef std::list<MoveOnly, other_allocator<MoveOnly>> C;
45         static_assert(std::is_nothrow_move_assignable<C>::value, "");
46     }
47     {
48         typedef std::list<MoveOnly, some_alloc<MoveOnly>> C;
49         static_assert(!std::is_nothrow_move_assignable<C>::value, "");
50     }
51 #endif
52 }
53