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 // <deque>
10
11 // deque& operator=(deque&& c)
12 // noexcept(
13 // allocator_type::propagate_on_container_move_assignment::value &&
14 // is_nothrow_move_assignable<allocator_type>::value);
15
16 // This tests a conforming extension
17
18 // UNSUPPORTED: c++03
19
20 #include <deque>
21 #include <cassert>
22
23 #include "test_macros.h"
24 #include "MoveOnly.h"
25 #include "test_allocator.h"
26
27 template <class T>
28 struct some_alloc
29 {
30 typedef T value_type;
31 some_alloc(const some_alloc&);
32 void allocate(std::size_t);
33 };
34
main(int,char **)35 int main(int, char**)
36 {
37 {
38 typedef std::deque<MoveOnly> C;
39 static_assert(std::is_nothrow_move_assignable<C>::value, "");
40 }
41 {
42 typedef std::deque<MoveOnly, test_allocator<MoveOnly>> C;
43 static_assert(!std::is_nothrow_move_assignable<C>::value, "");
44 }
45 #if defined(_LIBCPP_VERSION)
46 {
47 typedef std::deque<MoveOnly, other_allocator<MoveOnly>> C;
48 static_assert(std::is_nothrow_move_assignable<C>::value, "");
49 }
50 {
51 typedef std::deque<MoveOnly, some_alloc<MoveOnly>> C;
52 static_assert(!std::is_nothrow_move_assignable<C>::value, "");
53 }
54 #endif // _LIBCPP_VERSION
55
56 return 0;
57 }
58