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Re: do-nothing macro generates nil nevertheless
- To: info-mcl@digitool.com
- Subject: Re: do-nothing macro generates nil nevertheless
- From: "William D. Gooch" <goochb@swim5.eng.sematech.org>
- Date: Mon, 27 Feb 1995 13:06:32 -0600
- Organization: SEMATECH, Austin
- References: <3iqno7$mab@news.internex.net>, <gat-260295131710@milo.jpl.nasa.gov>, <3irfm9$1ti@news.internex.net>
- Sender: owner-info-mcl@digitool.com
On 27 Feb 1995, Dave Yost wrote:
> My point is that some functionality is not provided:
> namely, the ability of a macro to expand into _nothing_.
Why not just use ,@(the-macro ...) ? Then if it returns nil, you get
nothing. Of course, it must always return a list for this to work.