> Hi.
>
> I discovered some Delphi incompatibility. Call AllocMem(0) do not return nil.
> Fpc from svn.
>
> In SysGetMem are some comments about it:
>
> if size=0 then
> { we always need to allocate something, using heapend is not possible,
> because heappend can be changed by growheap (PFV) }
> size := 1;
>
> Is this behaviour essential, or is possible make it compatible with
> Delphi?
Current behaviour is compatible with TP7 that gave a valid pointer back
pointing to heapend. See
also the comment.
IMHO doing an AllocMem(0) is an error in your program.
Peter
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