From: tamouse mailing lists <tamouse.lists@...>
Date: 2012-12-12T15:10:03+09:00
Subject: Re: Leap year programing

On Tue, Dec 11, 2012 at 6:22 AM, Robert Klemme
<shortcutter@googlemail.com> wrote:
> On Tue, Dec 11, 2012 at 9:50 AM, Hieu Le <lists@ruby-forum.com> wrote:
>> This is my function:
>>
>>
>>
>> puts 'Begin year:'
>> beginyear = gets.chomp
>> puts 'End year:'
>> endyear = gets.chomp
>> puts 'The leap years between ' + beginyear + ' and ' + endyear + ':'
>>
>> beginyear = beginyear.to_i
>> endyear = endyear.to_i
>> if endyear < beginyear
>>         puts 'Note: Begin year < End year'
>> else
>>         while (beginyear <= endyear)
>>                 if
>>                 (((beginyear % 4 == 0) and (beginyear %100 !=0)) or
>> (beginyear % 400 == 0))
>>        puts beginyear.to_s
>>
>>      end
>>      (beginyear = beginyear.to_i + 1)
>>    end
>> end
>
> Here's mine
>
> require 'date'
>
> puts 'Begin year:'
> beginyear = Integer(gets)
>
> puts 'End year:'
> endyear = Integer(gets)
>

One minor tweak:

   beginyear, endyear = endyear, beginyear if endyear < beginyear

> puts "Leap years between #{beginyear} and #{endyear}:"
>
> for y in beginyear..endyear
>   puts y if Date.new(y, 1, 1).leap?
> end
>
> Cheers
>
> robert
>
> --
> remember.guy do |as, often| as.you_can - without end
> http://blog.rubybestpractices.com/
>