[Boost-bugs] [Boost C++ Libraries] #5405: Filesystem does not handle the path prefix of windows correct

Subject: [Boost-bugs] [Boost C++ Libraries] #5405: Filesystem does not handle the path prefix of windows correct
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2011-03-31 10:02:43

#5405: Filesystem does not handle the path prefix of windows correct
------------------------------------+---------------------------------------
 Reporter:  michael.kaes@…          |       Owner:  bemandawes
     Type:  Bugs                    |      Status:  new       
Milestone:  To Be Determined        |   Component:  filesystem
  Version:  Boost 1.46.1            |    Severity:  Problem   
 Keywords:                          |  
------------------------------------+---------------------------------------
 The filesystem V3 cannot handle the special windows prefix {{{\\?\}}}
 properly.
 The resulting path and file names are wrong.

 A simple example to reproduce the problem

 {{{
 boost::filesystem::path local_path(L"\\\\?\\C:\\");
 boost::filesystem::directory_iterator directoryContent(local_path);

 const std::wstring name1 = directoryContent->path().filename().wstring();
 std::wcout << "Name 1 == " << name1 << std::endl;

 ++directoryContent;

 const std::wstring name2 = directoryContent->path().filename().wstring();
 std::wcout << "Name 2 == " << name2 << std::endl;
 }}}


 The output should be the file names on the root folder of drive C.
 In my case
 {{{
 Name 1 == $Recycle.Bin
 Name 2 == 00120.mpls
 }}}

 The observed names are
 {{{
 Name 1 == $Recycle.Bin
 Name 2 == C:00120.mpls
 }}}

 The second name is not correct.
 I traced it down to the root_directory_start function in the path.cpp.
 Attached is a patch that solved my issue.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/5405>
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