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 basic_regex& e);
15
16 #include <regex>
17 #include <cassert>
18
main()19 int main()
20 {
21 std::regex r1("(a([bc]))");
22 std::regex r2 = r1;
23 assert(r2.flags() == std::regex::ECMAScript);
24 assert(r2.mark_count() == 2);
25 }
26