[PD-dev] how to output list with selector

[Alexandros Drymonitis]

gensym("foo") did the trick. Now I just call 
`outlet_anything(x->outlist, gensym("foo"), 2, x->vec);` and it works. 
Thanks!

On 9/21/23 11:30, Christof Ressi wrote:
>
>> Where do you see "atom_gensym"?
>
> Ahhh, it is similar to "atom_getsymbol", but also converts floats to 
> strings (instead of returning an empty symbol). I didn't even know 
> this function existed :) It's indeed easy to confuse with "gensym".
>
> IMO, https://github.com/pure-data/externals-howto#gensym does not 
> really belong to the "atoms" sections...
>
> Christof
>
> On 21.09.2023 10:23, Christof Ressi wrote:
>>
>>> I've tried `t_symbol *s = atom_gensym("foo")` 
>> Where do you see "atom_gensym"? I guess you confused it with 
>> "atom_getsymbol" (which tries to interpret an atom as a symbol).
>>
>>> but how do I get a pointer to a "foo" symbol?
>> gensym("foo")
>> On 21.09.2023 10:19, Alexandros Drymonitis wrote:
>>>
>>> That's what I need, indeed. I can't get my head around how to create 
>>> the selector symbol though. The second argument to outlet_anything 
>>> is a pointer to a t_symbol, but how do I get a pointer to a "foo" 
>>> symbol?
>>>
>>> I've tried `t_symbol *s = atom_gensym("foo")` but I get a warning 
>>> the atom_gensym() expects a const t_atom *a, and when I pass `s` to 
>>> the second argument of outlet_anything and print the output, I get 
>>> "???" instead of "foo". This might be obvious, but it's quite 
>>> complicated to me.
>>>
>>> On 9/21/23 10:00, Christof Ressi wrote:
>>>>
>>>>> `outlet_list(x->outlist, &s_list, 3, x->outlist)`; 
>>>> You accidentally passed the outlet itself as the last argument 
>>>> (t_atom *) to outlet_list().
>>>>
>>>> Unfortunately, C only offers minimal type checking and happily 
>>>> casts between unrelated pointer types. (With C++ this wouldn't 
>>>> compile in the first place.) However, although this is legal in C, 
>>>> all major compilers issue a warning ("-Wincompatible-pointer-types" 
>>>> on GCC/Clang resp. "warning C4133" with MSVC).
>>>>
>>>> Always check the compiler outputs for warnings!||
>>>>
>>>> ||
>>>>
>>>> ---
>>>>
>>>> Now to your actual question:
>>>>
>>>>> I'm trying to output a list of values with a selector. For 
>>>>> example, "foo 1 2".
>>>> The function you're looking for is outlet_anything().
>>>>
>>>> BTW, this is covered in the externals-howto: 
>>>> https://github.com/pure-data/externals-howto#outlet-anything
>>>>
>>>> Christof
>>>>
>>>> On 21.09.2023 08:20, Alexandros Drymonitis wrote:
>>>>> I'm trying to output a list of values with a selector. For 
>>>>> example, "foo 1 2". I though of creating a vector of t_atom, where 
>>>>> a_type of the first element would be A_SYMBOL, and the other two 
>>>>> would be A_FLOAT, and after a list outlet is created in the new 
>>>>> method like this:
>>>>>
>>>>> `x->outlist = outlet_new(x->x_obj, &s_list);`
>>>>>
>>>>> I can output the list with a bang like this:
>>>>>
>>>>> `outlet_list(x->outlist, &s_list, 3, x->outlist)`;
>>>>>
>>>>> But Pd complains with this error:
>>>>>
>>>>> ```
>>>>> print: listconsistency check failed: atom_string
>>>>>  
consistency check failed: atom_string
>>>>>  
consistency check failed: atom_string
>>>>> ```
>>>>>
>>>>> What I would like, is to get the output of the object and route it 
>>>>> with [route foo]. How do I go about this?
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> Pd-dev mailing list
>>>>> Pd-dev at lists.iem.at
>>>>> https://lists.puredata.info/listinfo/pd-dev
>>>>
>>>> _______________________________________________
>>>> Pd-dev mailing list
>>>> Pd-dev at lists.iem.at
>>>> https://lists.puredata.info/listinfo/pd-dev
>>>
>>> _______________________________________________
>>> Pd-dev mailing list
>>> Pd-dev at lists.iem.at
>>> https://lists.puredata.info/listinfo/pd-dev
>>
>> _______________________________________________
>> Pd-dev mailing list
>> Pd-dev at lists.iem.at
>> https://lists.puredata.info/listinfo/pd-dev
>
> _______________________________________________
> Pd-dev mailing list
> Pd-dev at lists.iem.at
> https://lists.puredata.info/listinfo/pd-dev
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.puredata.info/pipermail/pd-dev/attachments/20230921/cc598913/attachment.htm>