id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
7535,filesystem::path::iterator inconsistency with multiple leading separators,Stefan Große Pawig <boost@…>,Beman Dawes,"Iterating backwards through a filesystem::path does not terminate at path::begin() if the path starts with several leading directory separators.

For example:

{{{
#include <boost/filesystem.hpp>
#include <iostream>

int main()
{
  boost::filesystem::path p(""/////foo"");

  boost::filesystem::path::iterator i = p.begin();
  ++i;
  --i;
  std::cout << ((i == p.begin()) ? ""same"" : ""different"") << std::endl;
}
}}}

Expected output: `same` \\
Actual output: `different`

Looking at the source (filesystem/src/path.cpp), it seems that in path::begin() the iterator's m_pos member is set to the position of the last leading directory separator.

During backward iteration, m_pos is set to 0, though, so the iterator comparison (which involves comparing the m_pos members) yields false.
",Bugs,new,To Be Determined,filesystem,Boost 1.51.0,Problem,,,