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// <regex>
11
12// class match_results<BidirectionalIterator, Allocator>
13
14// void swap(match_results& that);
15
16#include <regex>
17#include <cassert>
18
19void
20test()
21{
22    std::match_results<const char*> m1;
23    const char s[] = "abcdefghijk";
24    assert(std::regex_search(s, m1, std::regex("cd((e)fg)hi")));
25    std::match_results<const char*> m2;
26
27    std::match_results<const char*> m1_save = m1;
28    std::match_results<const char*> m2_save = m2;
29
30    m1.swap(m2);
31
32    assert(m1 == m2_save);
33    assert(m2 == m1_save);
34}
35
36int main()
37{
38    test();
39}
40