[PD-dev] Pointers changing/corrupting (used to be "signal nan values")

[IOhannes m zmoelnig]

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On 2011-04-27 13:17, Andrew Hassall wrote:
> No thats fine, I've attached both c files. (they are a bit messy at
> the moment due to debugging and tearing them apart sorry, if you need
> cleaner commented code I can comment it up no problem)

a quick glance at lpcanalysis_tilde_new() reveils, that you are
allocating data on the stack (which will be freed as soon as you leave
lpcanalysis_tilde_new()!), store their addresses and re-use them later
(when the memory is already freed).

you cannot do:
<ko>
void*lpca_new() {
 //...
 t_sample winlis[2088];
 x->win=winlis;
 //...
}
</ko>

instead you have to do:
<ok>
void lpca_free(x) {
 freebytes(x->win);
 //...
}
void*lpca_new() {
 //...
 x->win=getbytes(2088*sizeof(t_sample));
 //...
}
</ok>

mfgasdr
IOhannes
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