[fpc-devel] MinDateTime is 100 AD ?

[Joost van der Sluis]

On Mon, 2007-07-02 at 21:48 +0200, Michael Van Canneyt wrote:
> 
> On Mon, 2 Jul 2007, Joost van der Sluis wrote:
> 
> > Hi all,
> > 
> > In sysstrh.inc MinDateTime is defined as follows:
> > 
> >   { For floattodatetime }
> >   MinDateTime: TDateTime = -657434.0;     { 01/01/0100 12:00:00.000 AM }
> >   MaxDateTime: TDateTime =  2958465.99999;{ 12/31/9999 11:59:59.999 PM }
> > 
> > Why is that? Datetimes before 100AD works perfectly. Can I change it to
> > 01/01/01 ? (Why does this restriction exist at all?!?)
> 
> Delphi compatibility, probably. As far as I know, it's not used ?

It is used in cvarutil.VariantToDate and in sysstr.FloatTodateTime. 

Joost.