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bug#13422: 24.2.91; Feature request: Add a macro always expanding to nil
From: |
Michael Heerdegen |
Subject: |
bug#13422: 24.2.91; Feature request: Add a macro always expanding to nil |
Date: |
Sun, 13 Jan 2013 03:36:57 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.2.91 (gnu/linux) |
Stefan Monnier <monnier@iro.umontreal.ca> writes:
> Of course, it also has its down sides:
>
> - returns nil, so (if foo (discard bar) then) runs the `then' in the
> `else' branch.
>
> - only works at those syntactic places where an expression is expected
> (e.g. (let ((a 1) (discard exp1 exp2) (b 2)) blabla) doesn't work.
Indeed, you must keep this in mind. It might be confusing.
> In any case, I think the current comments are good enough, and save the
> programmer from having to choose which kind of comment to use.
Ok, so please close.
Thanks,
Michael.
bug#13422: 24.2.91; Feature request: Add a macro always expanding to nil, Stefan Monnier, 2013/01/12
- bug#13422: 24.2.91; Feature request: Add a macro always expanding to nil,
Michael Heerdegen <=