Andrew Milner <[email protected]> writes:
> what you say is correct if dealing with one month ago - but lets now
> imagine it is say 31 may and we wish to go back 2, 3 or 4 months - where
> should we end up??
My take is that if someone asks a fuzzy question and gets an answer that
is in the set of arguably reasonable answers, it's ok. I think that's
far better than throwing an exception.
For going back N months from y/m/d:
m -= N
while m < 1, then {y -= 1; m += 12 }
if ( d is not valid for m )
move to the 1st of m+1
and call that good enough.
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