On Mon, 22 Nov 2010, Hans-Peter Diettrich wrote:
michael.vancann...@wisa.be schrieb:
I was looking at the code for Tag property in classes unit and noticed I
can't safely use Tag to keep runtime pointers (at least on a 64 bit
compile). What is the likelihood of getting tags changed to support
universal access under 64/32 bit compiles?
What is the logic behind the shortfall? I suspect just legacy and it could
be easily fixed. _______________________________________________
The logic is that it is bad programming to use an integer to store a
pointer.
That's why handles are used for that purpose, and on a 64 bit system handles
can have 64 bits as well.
Handles are equally bad. They are *not* pointers.
You should store a pointer in a variable of pointer type, period.
Michael.
_______________________________________________
fpc-devel maillist - fpc-devel@lists.freepascal.org
http://lists.freepascal.org/mailman/listinfo/fpc-devel
