[PD] Can $0 be 0?
Hans-Christoph Steiner
hans at eds.org
Sun Aug 13 23:16:56 CEST 2006
In a kind of related question, I was wondering whether it would be
possible to get the next $0 number from Pd using a message, i.e. the
number that the next object to be instantiated will be assigned. I
wanted to script something that sent messages to a bunch of patches
that were dynamically created and I found myself wanting that number.
This also gives rise to the question of whether objects or messages
are the most appropriate for this kind of thing. I think mostly Pd
uses objects right now, like [samplerate~], [block~], etc. Perhaps
an object would be more appropriate since it would have an outlet to
report that number on.
.hc
On Aug 13, 2006, at 1:10 PM, Miller Puckette wrote:
> That's funny... the reason $0 starts at 1000 and not 0 is because in
> Max the $ variables were printffed into the boxes themselves and I
> wanted to keep all the $ variables (at least the first 8999 of them)
> to the same width as a character string.
>
> Anyway, $0 uses true integers, so that it's unlikely they will ever
> reach
> zero (you'd have to fill your address speace 100s of times)... so I
> think
> you're safe.
>
> cheers
> Miller
> On Sun, Aug 13, 2006 at 10:04:02AM +0200, Frank Barknecht wrote:
>> Hi,
>>
>> I would like to check, if $0 was passed as an argument to an
>> abstraction. The usual idiom is:
>>
>> [loadbang]
>> |
>> [f $1] assuming, $0 was passed as $1
>> |
>> [select 0]
>> |
>> this is $0 now
>>
>> Now of course this fails, if $0 also can be zero itself. I know, that
>> currently this is very unlikely, because $0 starts at 1000 and grows.
>> But it would be great if possible future changes to the
>> $0-implementation would still rule out 0 as a value for $0, so that
>> the test from above will keep working.
>>
>> Ciao
>> --
>> Frank Barknecht _ ______footils.org_ __goto10.org__
>>
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