Re: Y2K style bug for Linux

I have never writen a mortgage calculator that used a date in the calculations.
Though I have used date refrances as a convenance when using calender
interfaces. But the beautiful thing about calculus is that you do not ahev to
have algebraic equations that requier such fine graned intstriment like seconds.
You simply intergrate on accross each payment cycle with continuiously
compaoinded intrest. Though I have used date functions in MySQL and Java that
were and I always check for integrity past 2038 and ensure all leapyears are
handled corectly untill 2500.

But again, I'm just an accountant...

Quoting Victor Odhner <vodhner@cox.net>:

> Jason <jason@spatafore.net> wrote:
> > The article did touch on a serious issue: What
> > about mortgage calculations past 35 years from
> > today? The point is: What about prediction today
> > for the limitations of tomorrow?
>
> I agree that anyone using an application that has
> to look past 2038 would do well to use appropriate
> test cases today, both to smoke-test the program and
> to sanity-check the results.
>
> This type of computation should not rely on system
> utilities that deal with the current date and time
> in terms of seconds. That is not a "bug for Linux",
> it's just lazy programming. But I'm sure a lot of
> these programs were written in COBOL and have
> survived Y2K; and I bet most of them do their own
> OS-independent decimal arithmetic in terms of
> days, not seconds.
>
> Our mortgage will be over in three years! ;-)
>
> Vic
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