[boost] filesystem::create_directories error

Subject: [boost] filesystem::create_directories error
From: Zachary Turner (divisortheory_at_[hidden])
Date: 2010-03-23 18:42:45

I'm trying to use boost::filesystem::create_directories() with a path of the
form \\?\Volume{Guid}\foo on windows.  This seems to break the filesystem
library because it doesn't understand the path syntax.  when recursing up
the parents it removes the slash at each level, so it ends up calling
boost::filesystem::exists(L"\\?\Volume{Guid}") which always returns false, I
think because GetFileAttributes() requires that paths in this syntax end
with a trailing \, whereas the trailing \ has been removed.

I'm tempted to fix this, but I'm sure this algorithm is fragile and any
change I apply is likely to break another case.  Does anyone have any
suggestions on how to fix this?

Thanks