[PD-dev] string external & usage count

[Tim Blechmann]

> i don't want to use pointers because if i send an invalid pointer to
> one of my string objects it will most likely crash pd.
> therefore i use handles. the worst thing that can happen is that a
> wrong handle refers to the wrong string. i made tests with wrong
> handles and it is quite fail safe.
you could store the pointers in a list and test, if it's valid ... the
problem with ints that are represented by floats ... you will have a
point when (x+1 == x) returns true ... which might be a wonderful source
for errors ...

cheers ... tim

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