llvm-project
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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& operator=(set&& 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 <set>
22#include <cassert>
23
24#include "test_macros.h"
25#include "MoveOnly.h"
26#include "test_allocator.h"
27
28template <class T>
29struct some_comp
30{
31typedef T value_type;
32some_comp& operator=(const some_comp&);
33bool operator()(const T&, const T&) const { return false; }
34};
35
36int main(int, char**)
37{
38{
39typedef std::set<MoveOnly> C;
40static_assert(std::is_nothrow_move_assignable<C>::value, "");
41}
42{
43typedef std::set<MoveOnly, std::less<MoveOnly>, test_allocator<MoveOnly>> C;
44static_assert(!std::is_nothrow_move_assignable<C>::value, "");
45}
46#if defined(_LIBCPP_VERSION)
47{
48typedef std::set<MoveOnly, std::less<MoveOnly>, other_allocator<MoveOnly>> C;
49static_assert(std::is_nothrow_move_assignable<C>::value, "");
50}
51#endif // _LIBCPP_VERSION
52{
53typedef std::set<MoveOnly, some_comp<MoveOnly>> C;
54static_assert(!std::is_nothrow_move_assignable<C>::value, "");
55}
56
57return 0;
58}
59