[Lazarus] DateDif function needed

[Michael Van Canneyt]

On Sat, 9 Nov 2013, Jürgen Hestermann wrote:

> Am 2013-11-09 18:31, schrieb Michael Van Canneyt:
>> On Sat, 9 Nov 2013, Jürgen Hestermann wrote:
>>> Storing dates as floats has a lot of drawbacks.
>>> It's inaccurate, you always need a starting date and get other problems.
>> Can you prove this statement ?
>
> Well, aren't the current mails about incorrect YearsBetween calculation proof 
> enough?

They are not incorrect. 
The reporter didn't understand what they are supposed to do.

> If you need to use an approximate value for days in the year then some is 
> wrong IMO.

Not if it is clearly documented.

Michael.