[PD] comparing symbols in external
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?
J
void testtext_input(t_testtext *x, t_symbol *selector, int argcount, t_atom
*argvec) {
int i;
const t_symbol *storedsymbol = gensym(mysymbol);
for (i = 0; i argcount; i++) {
if (argvec[i].a_type == A_SYMBOL) {
if ( argvec[i].a_w.w_symbol-s_name == storedsymbol)
post(found match!);
}
}
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Re: [PD] comparing symbols in external
Strange things like this can happen if someone inadvertently writes
a new string into an existing symbol... i.e., never do this:
strcat(sym-s_name, cat).
MAybe there was already a symbol somewhere else whose name is cat and
then you'll have 2 symbols with teh same name but different addresses.
(I've seen people do this, in various ways, before).
cheers
Miller
On Sat, May 03, 2014 at 03:22:19AM -0400, 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?
J
void testtext_input(t_testtext *x, t_symbol *selector, int argcount, t_atom
*argvec) {
int i;
const t_symbol *storedsymbol = gensym(mysymbol);
for (i = 0; i argcount; i++) {
if (argvec[i].a_type == A_SYMBOL) {
if ( argvec[i].a_w.w_symbol-s_name == storedsymbol)
post(found match!);
}
}
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Re: [PD] comparing symbols in external
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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Re: [PD] comparing symbols in external
Thanks to both, it makes sense and it works now.
J
On May 3, 2014, at 4:42 AM, IOhannes m zmölnig zmoel...@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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Re: [PD] best format for send/receive between iOS and libPD
:) On Wed, Apr 30, 2014 at 5:57 AM, Miller Puckette m...@ucsd.edu wrote: Hi Matt - From Pd's perspective at least, it would be more efficient to handle the messages separately (some of Pd's list operations have to copy the list, which would be expensive if done iteratively over a long list). cheers Miller On Wed, Apr 30, 2014 at 01:37:05PM +0900, i go bananas wrote: I've got a six voice synth, each with about 20 variable parameters, and then sequence data, etc... and all of this data is being stored by the objective C front-end of my app. can someone tell me, hopefully from experience, what the best format is to send a lot of pattern data between obj C and libPD ??? should i package all the data as one huge list, or break it all into individual variables, or is it ok to organize it into groups for ease of management. my plan was to send messages like this from obj C: to [r instr1_pattern_data] : [vol 0.8, pan 0.5, pitch 0.75, param1 0.99 ... etc] actually, i'm not the one doing the C coding, i'm, just doing the pd side, but i have to prepare things on my end to make it flow as well as possible. Overall, i think there about 1400 values that need to be passed for every pattern, so it probably does need to be as well streamlined as possible. cheers for any help Matt ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] MobMuPlat - data from several iPads to one PC
Thanks Dan! It worked so far with the help patch! Now I have just to see how it’s going with several iPads… Thanks again! chris Am 03.05.2014 um 01:30 schrieb Daniel Iglesia daniel.igle...@gmail.com: (And for multiple devices into a pd patch, I usually have the user of each device manually input a number identifying their identity, and then filter/route based on this in the PC patch) (If you choose to use LANdini, you'll want to get the standalone client (OSX only, or supercollider code) for the hub computer) Sent from my iPhone On May 2, 2014, at 4:49 PM, Christian Fischer m...@c-m-fischer.de wrote: Hi there, not sure whether I can make out the forest for the trees after x hours of fiddling… What would be the best way to send data (one way) from several iPads to one master patch on PC, connected adhoc wireless? So far I tried only with one iPad, used MobMuPlat and simple ‚netsend' / ‚netreceive'. For one iPad it worked pretty fine! Now I wonder what about several iPads. Can’t test before Monday, but I would like to prepare everything before… The idea is several people use the iPads as interfaces to manipulate a master patch on a PC connected to interface, several speakers etc… They do not have to get any feedback from master patch. Data flows only one way. MobMuPlat does not take ‚packOSC‘. Would ‚LANdini‘ be better for several iPads (could not get it running so far. still trying…) Or is there something else? Any experiences? Thanx Best! chris ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
