[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: What does the coding system nil mean?
From: |
Stefan Monnier |
Subject: |
Re: What does the coding system nil mean? |
Date: |
Tue, 27 Jan 2004 16:33:38 GMT |
User-agent: |
Gnus/5.09 (Gnus v5.9.0) Emacs/21.3.50 |
> Is this a matter of taste or does nil belonging to multiple data types
> cause problems somewhere (debugging programs, compiler/intepreter
> construction, whatever)?
It does not cause any particular problem, no.
It's just considered unclean by some. It can definitely surprise people
that (symbolp ()) is true. In some cases it's annoying: one example
off the top of my head is (intern-soft "nil").
In a sense, it's similar to whether or not chars and integers should
be distinguishable.
Stefan