Hi.

I was working on a GenericYear that was intended to be used for DateAndTime calculus - to be able to add and subtract an arbitrary number of years.�� The class by itself would not know the days - it is an arbitrary (generic) Year.

It would only know the number of days when it is added (or subtracted) from an actual date (or timespan).�� The idea was that it would have a very specific and limited scope of responsibility.

-cbc

On Sat, Nov 22, 2014 at 3:03 AM, Hilaire <hilaire@drgeo.eu> wrote:

I saw some discussion about Duration and year calculus in the list

Given that it is impossible to determine the number of days in a year
without the calendar years, should not 365.25 be used in place of 365 to
minimize the error ?

So it could look like:

Duration class >> years: aNumber
�� ^ self days: (aNumber * 365.25) truncated seconds: 0

Hilaire

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