From: Rick DeNatale <rick.denatale@...>
Date: 2007-12-08T01:45:00+09:00
Subject: Re: How do I add x months to a date

On 12/7/07, Raimon Fs <coder@montx.com> wrote:

> I couldn't find any info about this operator >> with dates.
>
> So, for example, if I have 2007-01-01 and I want to know the last day of
> adding three months (2007-03-31) I would do:
>
> d = Date.new(2007,1,1)
> ((d >> 3)-1).to_s
>
> it works, but we can relay on this operations ?

It's standard Ruby

shadowfax:~/ssanta rick$ qri "Date#<<"
---------------------------------------------------------------- Date#<<
     <<(n)
------------------------------------------------------------------------
     Return a new Date object that is n months earlier than the current
     one.

     If the day-of-the-month of the current Date is greater than the
     last day of the target month, the day-of-the-month of the returned
     Date will be the last day of the target month.

shadowfax:~/ssanta rick$ qri "Date#>>"
---------------------------------------------------------------- Date#>>
     >>(n)
------------------------------------------------------------------------
     Return a new Date object that is n months later than the current
     one.

     If the day-of-the-month of the current Date is greater than the
     last day of the target month, the day-of-the-month of the returned
     Date will be the last day of the target month.

-- 
Rick DeNatale

My blog on Ruby
http://talklikeaduck.denhaven2.com/