From: "Hal E. Fulton" <hal9000@...>
Date: 2001-01-10T16:11:05+09:00
Subject: [ruby-talk:8997] Re: Methods in FileTest

From: Yukihiro Matsumoto <matz@zetabits.com>

> 
> |However, size is there -- the only one without a
> |question mark.
> |
> |On the other hand, it could be there simply so that
> |size? doesn't get lonely.
> 
> We both have size and size?; the latter returns nil for zero sized
> files.  This is because zero returning functions are often used as
> predicates in C world.
> 
> matz.

Yes, I do understand that... I am only trying to understand why 
things are included/excluded here...

If size were missing, I would say, "Oh, they're all predicates."

But when I see size there, I ask, "Why isn't mode there?" And
maybe some others also.

Just curious. Not a big deal.

Thanks,
Hal Fulton