On 16 dec 2005, at 12:06, L505 wrote:
I'm still
running it through my head to really understand it on a deeper
level with the DLL
situation, though - since that's what this thread is trying to
solve in the end.
Other people have already said it is what I suspected: each DLL has
its own memory manager structures apparently, and that means that
memory allocated by one memory manager can be released to another,
which results in very bad things.
The other problem I see with Marc's diagram was that somehow you
showed the string
being decremented before anything even happened. Shouldn't it
decrement after something
happens, such as in Jonas' example?
In my example there is also a decrease "before anything even
happened". If you have
s := t
then the reference count of the ansistring s points to is decreased
before the assignment is carried out (because the compiler inserts a
call to a routine that does this decreasing), because after you have
overwritten s you obviously don't know anymore what it pointed to.
Jonas
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