[boost] [filesystem] relative path from arbitrary file system location?

Subject: [boost] [filesystem] relative path from arbitrary file system location?
From: Kenny Riddile (kfriddile_at_[hidden])
Date: 2009-02-06 21:22:07

Is there any existing functionality for getting a relative path from a 
full path, where the desired relative path is relative to an arbitrary 
directory path?  If not, I'm assuming I would just have to walk up both 
full paths until I find their intersection...etc