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 
21 void
test()22 test()
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 
main()38 int main()
39 {
40     test();
41 }
42