From: Masato KIYAMA <masato / csys.ce.hiroshima-cu.ac.jp>

> Hi,
>
> > destructive methods : why some destructive
> >  methods have an '!' and not other.
>
> '!' don't express destructive.
> The sign ! expresses careful or more dangerous in Ruby.

Are all predicate methods denoted by having a '?'?

Is there any reason that all mutator methods should not be denoted by having
a '!'?

Seems like it would be a good idea WRT principle of least surprise, etc.

(There might be backwards compatibility problems with changing old methods,
but '!' versions of old methods could still be added, and all new mutator
methods could be required to use '!'.)

Conrad