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// UNSUPPORTED: c++03, c++11, c++14
10
11// <set>
12
13// class multiset
14
15// node_type extract(const_iterator);
16
17#include <set>
18#include "test_macros.h"
19#include "min_allocator.h"
20#include "Counter.h"
21
22template <class Container>
23void test(Container& c)
24{
25std::size_t sz = c.size();
26
27for (auto first = c.cbegin(); first != c.cend();)
28{
29auto key_value = *first;
30typename Container::node_type t = c.extract(first++);
31--sz;
32assert(t.value() == key_value);
33assert(t.get_allocator() == c.get_allocator());
34assert(sz == c.size());
35}
36
37assert(c.size() == 0);
38}
39
40int main(int, char**)
41{
42{
43using set_type = std::multiset<int>;
44set_type m = {1, 2, 3, 4, 5, 6};
45test(m);
46}
47
48{
49std::multiset<Counter<int>> m = {1, 2, 3, 4, 5, 6};
50assert(Counter_base::gConstructed == 6);
51test(m);
52assert(Counter_base::gConstructed == 0);
53}
54
55{
56using min_alloc_set = std::multiset<int, std::less<int>, min_allocator<int>>;
57min_alloc_set m = {1, 2, 3, 4, 5, 6};
58test(m);
59}
60
61return 0;
62}
63