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      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