[boost] Re: [filesystem] adding path equality and path equivalence

From: David Abrahams (dave_at_[hidden])
Date: 2004-02-02 09:41:03

Beman Dawes <bdawes_at_[hidden]> writes:

> Coming back to equivalence, I still like John Maddock's suggestion of
> throwing only if both do not exist. If fits my intuitive sense of what
> "equivalence" means for files and directories. However, such thoughts
> in the past sometimes changed when tests cases were being
> constructed. So no firm decision has been made yet.

I don't think I'd want an exception in this case either.  I think you
should treat a path that doesn't exist like a non-signalling NaN.
IIRC, two NaNs never compare equal.

-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com