From: Hal Fulton <hal9000@...>
Date: 2004-03-21T04:04:47+09:00
Subject: Re: bug in Time, it wraps some dates to next month

Sam Roberts wrote:
> Maybe this is a feature, but I don't think so:
> 
> [ensemble] ~/p/ruby/src/ruby $ ./ruby -e "p Time.local(2004, 'feb', 31, 1, 1, 1)"
> Tue Mar 02 01:01:01 EST 2004
> 
> So it wraps into the next month if the day-of-month is past the end of
> the month. Arguably a feature.
> 
> But:
> 
> [ensemble] ~/p/ruby/src/ruby $ ./ruby -e "p Time.local(2004, 'feb', 32, 1, 1, 1)"
> -e:1:in `local': argument out of range (ArgumentError) from -e:1
> 
> It doesn't do it if the day-of-month is past 31?
> 
> So, I think it is a bug, not a feature.
> 
> [ensemble] ~/p/ruby/src/ruby $ ./ruby --version
> ruby 1.8.1 (2004-03-20) [powerpc-darwin]

I think (correct me if I'm wrong) this is related to the traditional
behavior of the underlying C libraries.

Thus perhaps both a bug and a feature.

Hal