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// map(map&&)
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++03
18
19#include <map>
20#include <cassert>
21
22#include "test_macros.h"
23#include "MoveOnly.h"
24#include "test_allocator.h"
25
26template <class T>
27struct some_comp {
28 typedef T value_type;
29 some_comp(const some_comp&);
30 bool operator()(const T&, const T&) const { return false; }
31};
32
33int main(int, char**) {
34#if defined(_LIBCPP_VERSION)
35 typedef std::pair<const MoveOnly, MoveOnly> V;
36 {
37 typedef std::map<MoveOnly, MoveOnly> C;
38 static_assert(std::is_nothrow_move_constructible<C>::value, "");
39 }
40 {
41 typedef std::map<MoveOnly, MoveOnly, std::less<MoveOnly>, test_allocator<V>> C;
42 static_assert(std::is_nothrow_move_constructible<C>::value, "");
43 }
44 {
45 typedef std::map<MoveOnly, MoveOnly, std::less<MoveOnly>, other_allocator<V>> C;
46 static_assert(std::is_nothrow_move_constructible<C>::value, "");
47 }
48#endif // _LIBCPP_VERSION
49 {
50 typedef std::map<MoveOnly, MoveOnly, some_comp<MoveOnly>> C;
51 static_assert(!std::is_nothrow_move_constructible<C>::value, "");
52 }
53
54 return 0;
55}
56

source code of libcxx/test/std/containers/associative/map/map.cons/move_noexcept.pass.cpp