[boost] [iostreams][filesystem] v3 adapter uploaded to ticket #4485

Subject: [boost] [iostreams][filesystem] v3 adapter uploaded to ticket #4485
From: Jeff Flinn (TriumphSprint2000_at_[hidden])
Date: 2011-03-03 08:32:53

I've uploaded an adapter allowing filesystem V3 path to be passed to the 
iostreams library constructors and methods taking paths. I'm using it 
with boost 1.44 on MSVC8 and Xcode3.1.2 with gcc4.0.1. It currently 
requires that BOOST_FILESYSTEM_VERSION is defined to be 3, and that 
users manually use the adapter like:

   #include <boost/iostreams/device/mapped_file.hpp>
   #include <boost/iostreams/filesystem_v3_path_adapter.hpp>

   ...

   boost::filesystem::path p(...);

   namespace io = boost::iostreams;

   io::mapped_file_source mf_src(io::filesystem_v3_path_adapter(p));

Filesystem V3 is deprecated in the upcoming boost 1.47, and will NOT be 
included in boost 1.48. Has anyone started updating iostreams to account 
for the removal of filesystem V2? IIRC, Steven Watanabe has been doing 
some iostreams maintenance. It looks like Jonathan Turkanis is no longer 
around, is there a new iostreams maintainer?

I can take this on if no one else is/has. In my view, and as a few 
others have stated as well, filesystem V3 path is the common/portable 
path currency in boost today. The iostreams interface/implementation can 
be simplified by utilizing path's portability. The windows 
implementation would always call CreateFileW passing path.wstring().c_str.

Thoughts?

Thanks, Jeff