From: Axel Etzold <AEtzold@...>
Date: 2009-01-15T18:18:53+09:00
Subject: Re: Prime.include?(1) hangs Ruby scripts and irb


-------- Original-Nachricht --------
> Datum: Thu, 15 Jan 2009 16:39:03 +0900
> Von: Frisco Del Rosario <friscodelrosario@nospamsbcglobal.net>
> An: ruby-talk@ruby-lang.org
> Betreff: Prime.include?(1) hangs Ruby scripts and irb

> Ruby version 1.8.6
> Mac OS 10.5.2
> 
> I would like a Ruby script to do something if a result is a prime 
> number, or do something else if the result is not prime. But Ruby is 
> hanging on instance_of_Prime.includes?(some prime number). For example, 
> in irb:
> 
> $ irb
> >> require 'mathn'
> => true
> >> foo=Prime.new
> => #<Prime:0x32bab8 @primes=[], @seed=1, @counts=[]>
> >> puts foo.include?(2)
> true
> => nil
> >> puts foo.include?(1)
> 
> Expected:
> false
> 
> Got:
> Nothing, and programs won't exit.
> 

Hi --

I can confirm that behaviour on Ruby 1.8.7 and Ubuntu 8.04.
I think you should file a bug with the authors of mathn.

Best regards,

Axel 
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