[PD] comparing symbols in external
Jaime E Oliver
jaime.oliver2 at gmail.com
Sat May 3 16:53:11 CEST 2014
Thanks to both, it makes sense and it works now.
J
On May 3, 2014, at 4:42 AM, IOhannes m zmölnig <zmoelnig at iem.at> wrote:
> On 05/03/2014 09:22 AM, Jaime E Oliver wrote:
>> Hi all,
>>
>> I am trying to compare two symbols, one incoming in a list into an external and the other one stored internally in the external.
>>
>> It compiles fine, but I don't get a match.
>>
>> c code is below. Ideas on what I'm missing
>
> the whole idea about symbols is, that you can do a pointer comparision
> of the *symbol*.
>
> so it should be as simple as:
> if(argvec[i].a_type == A_SYMBOL && argvec[i].a_w.w_symbol ==
> storedsymbol) post("found match");
>
>> if (argvec[i].a_type == A_SYMBOL) {
>> if ( argvec[i].a_w.w_symbol->s_name == storedsymbol) post("found match!");
>
> the ->s_name field of the symbol is the pointer to the actual C-string,
> whereas storedsymbol is a pointer to the symbol.
> so you are doing a compare ((const char*)cstr == (t_symbol*)sym), which
> is clearly wrong.
>
> fgmsadr
> IOhannes
>
>
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