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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 BidirectionalIterator, class Allocator, class charT, class traits>
     13 //     bool
     14 //     regex_match(BidirectionalIterator first, BidirectionalIterator last,
     15 //                  match_results<BidirectionalIterator, Allocator>& m,
     16 //                  const basic_regex<charT, traits>& e,
     17 //                  regex_constants::match_flag_type flags = regex_constants::match_default);
     18 
     19 // https://bugs.llvm.org/show_bug.cgi?id=16135
     20 
     21 #include <string>
     22 #include <regex>
     23 #include <cassert>
     24 #include "test_macros.h"
     25 
     26 void
     27 test1()
     28 {
     29     std::string re("\\{a\\}");
     30     std::string target("{a}");
     31     std::regex regex(re);
     32     std::smatch smatch;
     33     assert((std::regex_match(target, smatch, regex)));
     34 }
     35 
     36 void
     37 test2()
     38 {
     39     std::string re("\\{a\\}");
     40     std::string target("{a}");
     41     std::regex regex(re, std::regex::extended);
     42     std::smatch smatch;
     43     assert((std::regex_match(target, smatch, regex)));
     44 }
     45 
     46 void
     47 test3()
     48 {
     49     std::string re("\\{a\\}");
     50     std::string target("{a}");
     51     std::regex regex(re, std::regex::awk);
     52     std::smatch smatch;
     53     assert((std::regex_match(target, smatch, regex)));
     54 }
     55 
     56 void
     57 test4()
     58 {
     59     std::string re("\\{a\\}");
     60     std::string target("{a}");
     61     std::regex regex(re, std::regex::egrep);
     62     std::smatch smatch;
     63     assert((std::regex_match(target, smatch, regex)));
     64 }
     65 
     66 int
     67 main()
     68 {
     69     test1();
     70     test2();
     71     test3();
     72     test4();
     73 }
     74