[Lazarus] DateDif function needed

[waldo kitty]

On 11/13/2013 5:14 PM, Bart wrote:
> On 11/13/13, John Landmesser <JohnML at online.de> wrote:
>> I'm just a hobbyist, never went to university to study computer science.
>
> So am I.
> (For my background, see my userpage on the wiki)

i probably should set something, too... while i have an account on the wiki and 
have done a little bit of editing, i haven't set much of any background type of 
information...

>> We don't need to invent the wheel again, because others have solutions
>> for that!
>
> Of course we don't have to.
> I just gor intrigued by the (at that time already) long thread, and
> since no-one gave a solution, I just went for it and gave it my try.
>
> Just because it is fun to do.

a brother from a different mother! howdy, brother! :) O:)

i'm still working on it, too :lol:  i had thought i found a spreadsheet that 
would give the answers so as to compare with my output... the first thing i had 
to do, though, was set a max(a1,a2) and min(a1,a2) so that the lower date was 
placed first and the higher second as our code does but while i got the same 
answers for numerous tests, some returned a negative number in the sheet :(

so besides that, i've been trying to work my way, manually, through and count on 
a calendar... so far, everything seems to come out but not with the original 
code you and i posted and not with your fix... i had to go a bit deeper for the 
corners... anyway, i'm still whacking away at it and hope to maybe get something 
completed for the community... but it is slow and the columns of numbers just 
meld together at time when manually counting from the almanac %)

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