Below is my setup method.  This object generates rhythmic phrases so it accesses the time scheduler in Pd as per the code [metro] or [delay], and outputs a bang.  Perhaps this could be where it goes wrong?  

  Thanks for your time and help.  

-Rob

----------- 

void rhynamo_setup(void) {

        

        

        rhynamo_class = class_new(gensym("rhynamo"),

                                 (t_newmethod)rhynamo_new,

                                 (t_method)delay_free, sizeof(t_rhynamo),

                                 CLASS_DEFAULT,

                                 A_GIMME, 0);

        

        post("[rhynamo] a rhythmic generator v .02 : by Robert Esler 2014");

        

        class_addbang  (rhynamo_class, rhynamo_bang);

        class_addfloat(rhynamo_class, (t_method)rhynamo_generate);

        class_addsymbol(rhynamo_class, (t_method)rhynamo_set);

        class_addmethod(rhynamo_class,

                        (t_method)rhynamo_set, gensym("set"), A_DEFSYMBOL, A_DEFFLOAT, 0);

        class_addmethod(rhynamo_class,

                        (t_method)rhynamo_generate, gensym("generate"), A_FLOAT, 0);

                

        class_sethelpsymbol(rhynamo_class, gensym("help-rhynamo"));

        

        

    }

Date: Thu, 27 Feb 2014 14:15:05 -0600

From: Charles Z Henry <czhenry@gmail.com>

Subject: Re: [PD] Strange behavior using custom external

To: Robert Esler <robert@urbanstew.org>

Cc: pd-list <pd-list@iem.at>

Message-ID:

<CAPfmNOFA_cprs4Ux0Yg1YY7hFsgrpt79B+FeLj5kzf1FRD0R4Q@mail.gmail.com>

Content-Type: text/plain; charset="utf-8"

The difference probably indicates that something is going on in your

_setup() function.  Once you've loaded a class in a patch, it stays in

memory.  If you close the patch, and open another patch without the class,

you may still see the effects---but if you close pd, and reopen without

using the class, you should not see the effects at all.

The backtrace shows a seg fault from calls in "binbuf_eval", which is the

code related to parsing and loading a patch.  You might just have passed a

struct as an argument, where it's expected to be an element of that struct.

Although.... pointer type mismatches will definitely throw a compiler

warning you should have seen already.  Would you post the _setup() function?

Chuck