Prime.include?(1) hangs Ruby scripts and irb

[Frisco Del Rosario]

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:

$ irbtrue
=> nil
Expected:
false

Got:
Nothing, and programs won't exit.

 

[Axel Etzold]

-------- Original-Nachricht --------

Datum: Thu, 15 Jan 2009 16:39:03 +0900
Von: Frisco Del Rosario <[email protected]>
An: (e-mail address removed)
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
true
=> nil

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