[fpc-pascal] Arrays of objects

Marco van de Voort marcov at stack.nl
Wed Oct 31 13:30:00 CET 2007

> On 10/31/07, Joao Morais <post at joaomorais.com.br> wrote:
> > They are reference counted, just like ansi strings, ie don't worry about
> > memory leakages.
> The detail that is not crystal clear to me is  :  after the first SetLength
> and  i set the first 3  elements  ,   is it *guaranteed* that the
> second SetLength
> leaves those first 3 elements  untouched ?

Yes. But they can be copied, so address to them might be invalid.
> That's what i meant by "resize" as opposed to  "reallocate" . Reallocation
> could occur in some other place in memory , leading to loosing the
> original contents.  

It does resize if possible, reallocate (and copy the original data as far as
it fits) else.

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