[fpc-pascal] Find the nature of a pointer
jonas.maebe at elis.ugent.be
Fri Sep 1 20:04:49 CEST 2006
On 1 sep 2006, at 19:54, Felipe Monteiro de Carvalho wrote:
> I have a function that will receive a Handle. That handle could be a
> pointer to a structure, or a object. Is there any safe way to discover
> it's nature?
No, if only because there is no generic way to distinguish a random
record which just looks like an object (because it happens to contain
the right bytes at the right place) and a genuine object (or anything
else for that matter).
The only way would be to make sure all objects are allocated from a
separate memory pool, and checking whether the passed address lies in
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