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 // template <class BidirectionalIterator> class sub_match;
13 
14 // operator string_type() const;
15 
16 #include <regex>
17 #include <cassert>
18 
main()19 int main()
20 {
21     {
22         typedef char CharT;
23         typedef std::sub_match<const CharT*> SM;
24         SM sm = SM();
25         SM::string_type str = sm;
26         assert(str.empty());
27         const CharT s[] = {'1', '2', '3', 0};
28         sm.first = s;
29         sm.second = s + 3;
30         sm.matched = true;
31         str = sm;
32         assert(str == std::string("123"));
33     }
34     {
35         typedef wchar_t CharT;
36         typedef std::sub_match<const CharT*> SM;
37         SM sm = SM();
38         SM::string_type str = sm;
39         assert(str.empty());
40         const CharT s[] = {'1', '2', '3', 0};
41         sm.first = s;
42         sm.second = s + 3;
43         sm.matched = true;
44         str = sm;
45         assert(str == std::wstring(L"123"));
46     }
47 }
48