Crashes are usually because memory hasn't been allocated properly.  I'd check x->current and x->step.  Hooking up to gdb will give you a lot more info.  Search puredata.info for 'gdb' for a little howto.
On Mar 16, 2008, at 7:42 PM, Greg Surges wrote:
Hi all,
The following code crashes Pd when the randomwalk object receives a bang...
I'm stuck as to why, can anyone see a reason?
void randomwalk_bang(t_randomwalk *x)
{
    t_float randval = rand() % 2;
     if(randval == 0) randval = -1;
    if(randval == 1) randval = 1;
    x->current += (x->step * randval);
    outlet_float(x->f_out, x->current);
}
Thanks in advance,
-Greg
 
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