Range directory iterators

[jmckesson@…]

With C++11 now finalized as a standard, and compilers being more compliant every day, it makes sense to have range-based versions of the directory_iterator classes. This would make it much easier to use the range-based for loop, as well as Boost.Range functionality.

Basically, it could just be a couple of helper functions that create a boost::iterator_range<bfs::directory_iterator> instance.