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 charT, class traits = regex_traits<charT>> class basic_regex;
13 
14 // basic_regex(const charT* p);
15 
16 #include <regex>
17 #include <cassert>
18 
19 template <class CharT>
20 void
21 test(const CharT* p, unsigned mc)
22 {
23     std::basic_regex<CharT> r(p);
24     assert(r.flags() == std::regex_constants::ECMAScript);
25     assert(r.mark_count() == mc);
26 }
27 
28 int main()
29 {
30     test("\\(a\\)", 0);
31     test("\\(a[bc]\\)", 0);
32     test("\\(a\\([bc]\\)\\)", 0);
33     test("(a([bc]))", 2);
34 }
35