From: lalawawa <usenet@...>
Date: 2010-01-19T09:05:13+09:00
Subject: Re: Return class as Integer

Gary Wright wrote:
> On Jan 18, 2010, at 5:03 PM, Atheeq Pasha wrote:
> 
>> hello,
>>
>> Can anyone tell me how to get a return class as Integer in ruby?
>>
>> and to use Integer.new method with parameter as a number.
> 
> Integer is an abstract class is Ruby.  You want a Fixnum
> (32 bit integers) or a Bignum (arbitrarily large integers).
> 
> Fixnum and Bignum are subclasses of Integer.  Just use regular
> decimal notation to 'generate' fixnums and bignums instances.
> 
>>> 42.class
> => Fixnum
>>> 4200000000.class
> => Bignum
> 
> 
> 
> Gary Wright

I don't think Fixnums are 32 bit.

irb(main):008:0> (1 << 30).class
=> Bignum
irb(main):009:0> (1 << 29).class
=> Fixnum
irb(main):010:0>

This is on Ubuntu Linux.