On Mon, 25 Jun 2001 09:09:52 GMT, [EMAIL PROTECTED] (Graaagh the
Mighty) wrote:
>On Sun, 24 Jun 2001 14:39:06 GMT, [EMAIL PROTECTED] (David C.
>Ullrich) sat on a tribble, which squeaked:
>
[1]>>That's one scary thing - in fact there are places in
>>Windows95 where the system _regularly_ creates GPF's;
>>something to do with thunking or something.
>>
[2]>>But the scary thing about the quote is that the
>>guy was advocating _hiding_ AV's in programs we
>>write instead of fixing them. AV's can be hard to
>>debug - the eaiest way is to make certain they
>>don't arise in the first place. And given this
>>guy's attitude, one of the steps involved in
>>ensuring that your code contains no hard-to-debug
>>AV's is making sure you never use anything
>>he wrote. Hence the sig - it's a public-service
>>thing.
>
>>"Sometimes you can have access violations all the
>>time and the program still works." (Michael Caracena,
>>comp.lang.pascal.delphi.misc 5/1/01)
>
>And yet he never made the connection that maybe Michael Caracena's
>code *is* the code in Windows that regularly GPFs...
Um, no. In [1] I wasn't talking about the GPF's that we
see when Windows crashes. I forget the details, but
these are _intentional_ GPF's that don't give error
messages - they're part of how the system "works".
As opposed to [2] the GPF's this guy is hiding - these
are not GPF's that are supposed to happen.
>(Seriously though -- core parts of Windoze are written in Pascal, and
>it is known that Windoze does hide some AVs it commits, especially
>those involving reading through a null pointer!)
How do you know some parts are in Pascal, and what does that
have to do with AV's?
>--
>Bill Gates: "No computer will ever need more than 640K of RAM." -- 1980
>"There's nobody getting rich writing software that I know of." -- 1980
>"This antitrust thing will blow over." -- 1998
>Combine neo, an underscore, and one thousand sixty-one to make my hotmail addy.
David C. Ullrich
*********************
"Sometimes you can have access violations all the
time and the program still works." (Michael Caracena,
comp.lang.pascal.delphi.misc 5/1/01)
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