Nice! I definitely wouldn't have thought of this.

From: Pd-list <pd-list-bounces@lists.iem.at> on behalf of IOhannes m zmoelnig <zmoelnig@iem.at>
Sent: 09 April 2018 15:19
To: pd-list@lists.iem.at
Subject: Re: [PD] Test if an argument is void
 
On 2018-04-09 15:29, Liam Goodacre wrote:
> If you don't mind using externals, you can use [iemguts/canvasargs] or [else/args]. I can't think of a way of doing this in Vanilla though. As you say, no argument seems to be indistinguishable from 0.

for a given argument, it's possible. e.g.:
(it's also possible to count the number of arguments, but more complicated)

https://lists.puredata.info/pipermail/pd-list/2012-09/097880.html

(the code has to be copied verbatim into your abstraction and cannot be
wrapped into a helper-abstraction)


fgasdmr
IOhannes