[boost] BOOST_FOREACH on a filesystem directory_iterator?

Boost.Filesystem apparently contains support for BOOST_FOREACH: https://github.com/boostorg/filesystem/blob/5a93351bfdf859ee47245e0429739226... But it doesn't work: #include <boost/filesystem.hpp> #include <boost/foreach.hpp> namespace fs = boost::filesystem; int main() { fs::directory_iterator it; BOOST_FOREACH( fs::path const& p, it ) { } } 1>c:\boost-git\develop\boost/range/end.hpp(48) : error C2039: 'end' : is not a member of 'boost::filesystem::directory_iterator' The fix is trivial, but I wonder... how did nobody notice? Is this feature never used?