On Tue, September 17, 2013 20:22, Lubomír Čabla wrote: > It may be, but I tried to use EncodeDateTime with the same result: > > DT1:=EncodeDateTime(2013,5,28,15,26,1,0); > DT2:=EncodeDateTime(2013,5,28,15,27,1,0); > > Function EncodeDateTime calls TryEncodeDateTime that uses TryEncodeDate > and > TryEncodeTime. > > This is only a test, I want to be sure that after comparing the two values > get the correct time difference and 59 seconds is not correct.
As a principle, you can never avoid such errors if using floating point numbers. If you need absolutely precise results, use integers. Tomas > > On Tue, Sep 17, 2013 at 6:15 PM, Bart <bartjun...@gmail.com> wrote: > >> On 9/17/13, Lubomír Čabla <kla...@gmail.com> wrote: >> > I am doing something wrong? >> >> Probably rounding errors: >> DT1:=EncodeDate(2013,5,28)+EncodeTime(15,26,1,0); >> 2 calculations on floating numbers >> >> DT1:=EncodeTime(15,26,1,0); >> 1 calculation on floating numbers >> >> Bart >> _______________________________________________ >> fpc-pascal maillist - fpc-pascal@lists.freepascal.org >> http://lists.freepascal.org/mailman/listinfo/fpc-pascal >> > _______________________________________________ > fpc-pascal maillist - fpc-pascal@lists.freepascal.org > http://lists.freepascal.org/mailman/listinfo/fpc-pascal _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
