>>>>No problem and I don't care if you use or not. Woould you tell me what do you mean by "since this class returns an incorrect result"?
>>>>Cetin
>>>
>>>

>>>WITH CREATEOBJECT("age")
>>>
>>>	.CalcAge({^1988/2/29} ,  {^2006/09/21 })
>>>
>>>	CLEAR
>>>	
>>>	? .Years , .Months , .Days
>>>	* CHECK with the correct definition Age = (((Birth+Y)+M)+D)
>>>	?  GOMONTH(GOMONTH({^1988/2/29},.Years*12),.Months)+.Days
>>>	* CHECK with a bad definition
>>>	?  GOMONTH({^1988/2/29},.Years*12+.Months) + .Days
>>>	?  gomonth(GOMONTH({^2006/09/21} - .Days, - .Months), - .Years *12)
>>>ENDWITH

>>
>>18 years, 6 months and 22 days. Correct. I don't understand why you say it's a bad definition. Use pen and pencil.
>>Cetin
>
>Cetin, try this. Do it with the above - {^1988/02/29}, {^2006/09/21}
>18 years, 6 months, 22 days.
>
>Now try it with {^1988/03/01}, {^2006/09/21}
>18 years, 6 months, 20 days
>
>It should only be 1 day less than the first attempt, not 2 days.

The rule:

birth + 1 then age + 1

is not valid

post these ages:

{^1988/02/28}, {^2006/02/28}

{^1988/02/29}, {^2006/02/28}

{^1988/01/28}, {^1989/02/28}

{^1988/01/29}, {^1989/02/28}

{^1988/01/30}, {^1989/02/28}

{^1988/01/31}, {^1989/02/28}