[Lazarus] DateDif function needed

[waldo kitty]

On 11/16/2013 5:08 AM, John Landmesser wrote:
> This discussion seems to be finished ( 92 posts ) and i want to make a proposal
> as solution:
>
> Use the function DateDiff from Jedi ( RxLib ) ( JvJCLUtils.pas ).
>
> It's not perfect, but it works for me:

in what way do you think it is not perfect for your purposes or needs?

FWIW: i copied the jedi datediff you posted and placed it in my testing project 
to compare my output with it... the results are exactly the same...

but i still wonder if the last day of a month to the last day of another month 
should be counted as a full month...

eg:
   CalendarDateDiff: 2012-01-31 to 2012-02-29 =    0 yrs    0 mos   29 days
   JediDateDiff:     2012-01-31 to 2012-02-29 =    0 yrs    0 mos   29 days

should this actually be

   2012-01-31 to 2012-02-29 =    0 yrs    1 mos   0 days

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