[fpc-devel] Definition of the time-fration in a TDateTime before 30/12/1899

[John E Briggs]

I do not know how relevant this site is but it maybe worthwhile to browse

     http://www.chronos-st.org

You maybe able to develope a few libraries/units for date/timekeeping purposes
from the ideas presented on this site.

John

On Mon, May 22, 2006 at 12:04:11PM +0200, Graeme Geldenhuys wrote:
> On 5/22/06, Bram Kuijvenhoven <kuifwaremailinglists at xs4all.nl> wrote:
> >I guess we will need plenty of unit tests to make sure all the functions 
> >work consistent, in particular also for dates close to and before 
> >29-12-1899 :)
> >
> >(Note: I sent some mail explaining the TryEncodeDateTime function some 
> >time ago (21-4-2006), on Graeme's request. I also mentioned an overflow 
> >problem in that code + how to fix. Perhaps this fix can be integrated into 
> >the code as well.)
> >
> 
> Hi Bram,
> 
> Yeah, I had my share of uphill battles with old dates (Delphi and
> FPC).  I works fine with recent dates, but don't venture to far off!!
> 
> I already have a collection of unit tests for dates, which is
> incorporated into our products unit tests.  We use fpcUnit
> extensively.  I could always extend those tests a bit more, but as far
> as I understand, FPC developers dont' use fpcUnit, but rather some
> custom testing framework.
> 
> Regards,
>  Graeme.