Eliminating upgrade risk
johnroth at ameritech.net
Fri Jul 27 17:37:40 CEST 2001
"Peter Hansen" <peter at engcorp.com> wrote in message
news:3B60AA24.B26F6B76 at engcorp.com...
> I agree the rate of change is enough to make many of us nervous
> (perhaps especially in industry). And I agree some of the new
> features appear (from my particular point of view) unnecessary
> and more like CS playthings than anything else.
> That said, I have to say that at least one change is likely to
> improve my ability to produce bullet-proof programs.
> The surgery on the way division works will almost certainly
> reduce the risk of my accidentally (and quietly) truncating a
> result when I really meant to say float(x)/y and forgot, since
> this is an idiom I rarely need to use. (This is leaving aside
> the issue of code breakage, but I'm talking only about new
> code here, and in my case I don't need to maintain backwards
I have to agree with you on the division mess - don't think that
what I wrote to start this thread means that I don't think it needs
to be fixed!
What everyone seems to have overlooked is that I presented
a plan for allowing the continued evolution of the language,
while providing stability for the existing code base.
What I'd actually like to see, from a bullet-proofing point of view,
is the complete elimination of the "/" operator, in favor of "idiv",
"rdiv" and "fdiv" (with the obvious meanings of integer, rational and
Of course, this would reduce the obviousness of the language,
but it would also eliminate mistakes.
> Peter Hansen, P.Eng.
> peter at engcorp.com
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