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// template <class BidirectionalIterator, class Allocator>
15//    void swap(match_results<BidirectionalIterator, Allocator>& m1,
16//              match_results<BidirectionalIterator, Allocator>& m2);
17
18#include <regex>
19#include <cassert>
20
21void
22test()
23{
24    std::match_results<const char*> m1;
25    const char s[] = "abcdefghijk";
26    assert(std::regex_search(s, m1, std::regex("cd((e)fg)hi")));
27    std::match_results<const char*> m2;
28
29    std::match_results<const char*> m1_save = m1;
30    std::match_results<const char*> m2_save = m2;
31
32    swap(m1, m2);
33
34    assert(m1 == m2_save);
35    assert(m2 == m1_save);
36}
37
38int main()
39{
40    test();
41}
42