[PD] generic pointer type WAS: PD-extended 0.40-3 : error when sending "blob" message to inlet

[Hans-Christoph Steiner]

Hmm, I don't think it would be so great for to have floats and ints in  
Pd for most uses.   This has probably been discussed before, but is  
there any chance of generalizing the pointer type?  Or perhaps there  
should be just a generic pointer type, that's what I think IOhannes  
was proposing.

.hc

On Jan 28, 2009, at 10:46 AM, Martin Peach wrote:

> Pd already has a t_int type declared in m_pd.h, the comments imply  
> that it must be the same size as a pointer:
>
> /* signed and unsigned integer types the size of a pointer:  */
> #if !defined(PD_LONGINTTYPE)
> #define PD_LONGINTTYPE long
> #endif
> #if !defined(PD_FLOATTYPE)
> #define PD_FLOATTYPE float
> #endif
> typedef PD_LONGINTTYPE t_int;       /* pointer-size integer */
> typedef PD_FLOATTYPE t_float;       /* a float type at most the same  
> size */
> typedef PD_FLOATTYPE t_floatarg;    /* float type for function calls  
> */
>
> So if Pd could handle int types just as it now handles float types,  
> then you could pass pointers around (as well as unicode characters  
> etc.). The blob code defines a type that consists of a pointer and a  
> length, but that could be done further down the chain outside of  
> core Pd if Pd could pass just the pointer around.
> The t_int type is used internally but there is no integer atom.
>
>
> Martin
>
>
>> From: Hans-Christoph Steiner <hans at eds.org>
>> To: Martin Peach <martin.peach at sympatico.ca>
>> CC: pd-list <pd-list at iem.at>
>> Subject: Re: [PD] PD-extended 0.40-3 : error when sending "blob"  
>> message to inlet
>> Date: Wed, 28 Jan 2009 09:44:43 -0500
>>
>>
>> I don't quite follow, can you expand on that?  Do you mean that Pd   
>> would have to include ints?  Or that the C code should use t_int   
>> rather than int?
>>
>> .hc
>>
>> On Jan 28, 2009, at 9:21 AM, Martin Peach wrote:
>>
>>> I'm thinking that if Pd would just handle its own t_int type (as   
>>> MaxMSP
>>> does) then the blob stuff would be unnecessary.
>>>
>>> Martin
>>>
>>> Hans-Christoph Steiner wrote:
>>>> Yes, indeed this is strange behavior.  The string/blob stuff is in
>>>> need of an update, but its not very clear how to handle it.  So
>>>> examples like this are useful for outlining the problems.
>>>>
>>>> .hc
>>>>
>>>> On Jan 27, 2009, at 5:51 PM, Jean-Yves Gratius wrote:
>>>>
>>>>> strange behaviour, isn't it ?
>>>>> when I send [float( or [list( or [symbol( or even <gempointer>  
>>>>> to a
>>>>> trigger [t a], everything is ok, when I send [blob( to this   
>>>>> trigger, i
>>>>> get an error message.
>>>>> Any other reserved keywords ?
>>>>>
>>>>> JYG.
>>>>>
>>>>> Hans-Christoph Steiner a écrit :
>>>>>> "blob" is a keyword for Martin Peach's string additions that are
>>>>>> included in Pd-extended.
>>>>>>
>>>>>> .hc
>>>>>>
>>>>>> On Jan 27, 2009, at 4:44 AM, Jean-Yves Gratius wrote:
>>>>>>
>>>>>>> hi,
>>>>>>>
>>>>>>> in pd-extended 0.40-3 (win xp), when i send a [blob( message  
>>>>>>> to a
>>>>>>> subpatch with an inlet, i get a error message :
>>>>>>>
>>>>>>> error :  Bad arguments for message 'blob' to object   
>>>>>>> 'messresponder'
>>>>>>>
>>>>>>> i tried with pd vanilia 0.39-2, 0.40-1, pd ext. 0.39-2,  
>>>>>>> everything
>>>>>>> is
>>>>>>> ok.
>>>>>>>
>>>>>>> [blob(
>>>>>>> |
>>>>>>> [pd-subpatch]
>>>>>>>
>>>>>>> Jean-Yves
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
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