From: Joel VanderWerf <vjoel@...>
Date: 2009-09-14T07:52:03+09:00
Subject: Re: Overflow behavior

jacob navia wrote:
> What is the official behavior of ruby in case of integer overflow?

Integers overflow from Fixnums (30 bits) into Bignums (unlimited 
precision integers).

irb(main):003:0> x = 2**30 - 1
=> 1073741823
irb(main):004:0> x.class
=> Fixnum
irb(main):005:0> x+1
=> 1073741824
irb(main):006:0> (x+1).class
=> Bignum

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       vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407