id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
1061,boost::filesystem::basic_recursive_directory_iterator fails on empty directories.,jrowe@…,Beman Dawes,"See the following code (http://lists.boost.org/Archives/boost/2006/10/111230.php):

{{{
int main(int argc, char *argv[]) 
{ 
     fs::path p(""c:\\empty_folder""); // a empty folder 
     fs::recursive_directory_iterator iter(p); 
     if (iter != fs::recursive_directory_iterator()) 
         iter->status(); // <== cause a assertion failure 
     return 0; 
} 
}}}

It might be able to be fixed by modifying convenience.hpp in the following way (only informally tested for an empty top-level directory):

{{{
    //  constructors
    template<class Path>
    basic_recursive_directory_iterator<Path>::
      basic_recursive_directory_iterator( const Path & dir_path )
      : m_imp( new detail::recur_dir_itr_imp<Path> )
    {
      m_imp->m_stack.push( basic_directory_iterator<Path>( dir_path ) );
      if (m_imp->m_stack.top () == basic_directory_iterator<Path> ())
      {
          m_imp.reset ();
      }
    }

    template<class Path>
    basic_recursive_directory_iterator<Path>::
      basic_recursive_directory_iterator( const Path & dir_path, system_error_type & ec )
      : m_imp( new detail::recur_dir_itr_imp<Path> )
    {
      m_imp->m_stack.push( basic_directory_iterator<Path>( dir_path, std::nothrow ) );
      if (m_imp->m_stack.top () == basic_directory_iterator<Path> ())
      {
          m_imp.reset ();
      }
      m_imp->m_no_throw = true;
    }
}}}

I haven't tested this fix with any significant rigor.  I am just reporting the bug so it can be tracked, and suggesting the code where the problem is.  
",Bugs,closed,Boost 1.35.0,filesystem,Boost 1.34.0,Problem,fixed,recursive_directory_iterator empty directory,