id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
1033,iostreams::restrict doesn't work on an iostreams::file_source,phil@…,Jonathan Turkanis,"I ran into a problem when using restrict on a file_source. The problem was that it decided that the stream wasn't seekable and called the version of skip that reads a character at a time until it gets to the requested offset, instead of just calling seek.

The code was similar to this:


{{{
namespace io = boost::iostreams;

std::string filename;
io::filtering_istream rstr(io::restrict(io::file_source(filename), 10, 100));
}}}

I've attached a patch that solved my problem. It was checking to see if the device was seekable (which means both input_seekable and output_seekable), but since it was an input device, it was just input_seekable. ",Bugs,closed,To Be Determined,iostreams,Boost 1.34.0,Problem,fixed,iostreams,