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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 // class regex_token_iterator<BidirectionalIterator, charT, traits>
     13 
     14 // const value_type& operator*() const;
     15 
     16 #include <regex>
     17 #include <cassert>
     18 
     19 int main()
     20 {
     21     {
     22         std::regex phone_numbers("\\d{3}-\\d{4}");
     23         const char phone_book[] = "start 555-1234, 555-2345, 555-3456 end";
     24         std::cregex_token_iterator i(std::begin(phone_book), std::end(phone_book)-1,
     25                                      phone_numbers, -1);
     26         assert(i != std::cregex_token_iterator());
     27         assert((*i).str() == "start ");
     28         ++i;
     29         assert(i != std::cregex_token_iterator());
     30         assert((*i).str() == ", ");
     31         ++i;
     32         assert(i != std::cregex_token_iterator());
     33         assert((*i).str() == ", ");
     34         ++i;
     35         assert(i != std::cregex_token_iterator());
     36         assert((*i).str() == " end");
     37         ++i;
     38         assert(i == std::cregex_token_iterator());
     39     }
     40     {
     41         std::regex phone_numbers("\\d{3}-\\d{4}");
     42         const char phone_book[] = "start 555-1234, 555-2345, 555-3456 end";
     43         std::cregex_token_iterator i(std::begin(phone_book), std::end(phone_book)-1,
     44                                      phone_numbers);
     45         assert(i != std::cregex_token_iterator());
     46         assert((*i).str() == "555-1234");
     47         ++i;
     48         assert(i != std::cregex_token_iterator());
     49         assert((*i).str() == "555-2345");
     50         ++i;
     51         assert(i != std::cregex_token_iterator());
     52         assert((*i).str() == "555-3456");
     53         ++i;
     54         assert(i == std::cregex_token_iterator());
     55     }
     56     {
     57         std::regex phone_numbers("\\d{3}-(\\d{4})");
     58         const char phone_book[] = "start 555-1234, 555-2345, 555-3456 end";
     59         std::cregex_token_iterator i(std::begin(phone_book), std::end(phone_book)-1,
     60                                      phone_numbers, 1);
     61         assert(i != std::cregex_token_iterator());
     62         assert((*i).str() == "1234");
     63         ++i;
     64         assert(i != std::cregex_token_iterator());
     65         assert((*i).str() == "2345");
     66         ++i;
     67         assert(i != std::cregex_token_iterator());
     68         assert((*i).str() == "3456");
     69         ++i;
     70         assert(i == std::cregex_token_iterator());
     71     }
     72 }
     73