[Bug c++/36863] New: TR1 regex with GCC 4.3.0 on cygwin

["christopher dot kormanyos at al-lighting dot com" <gcc-bugzilla at gcc dot gnu dot org>]

We can not successfully use std::tr1::regex functionality with GCC 4.3.0 on
i686-pc-cygwin. Even the simplest of match expressions can not be successfully
matched. Perhaps there is a user error on our side here (sorry if this is the
case). Perhaps there is an actual compiler issue here.

The following code does not successfully match. It compiles but gives a
unexpectedly false match. The code compiles and runs with VC9 + FeaturePack.

#include <iostream>
#include <iomanip>
#include <string>
#if defined(__GNUC__)
#include <tr1/regex>
#else
#include <regex>
#endif

int main(void)
{
  static const std::tr1::regex rx_hello("hello");

  static const std::string str_hello("hello");

  std::cout << std::boolalpha
            << "Match result: "
            << std::tr1::regex_match(str_hello, rx_hello)
            << std::endl;
}


-- 
           Summary: TR1 regex with GCC 4.3.0 on cygwin
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: christopher dot kormanyos at al-lighting dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36863