From: Chris Gehlker <gehlker@...>
Date: 2002-01-18T00:59:21+09:00
Subject: Re: Possible bug in Mac version?

On 1/17/02 6:35 AM, "Dave Thomas" <Dave@PragmaticProgrammer.com> wrote:

> 
> I was sent the following by Philippe de Rochambeau, but not having a
> Mac I can't confirm it:
> 
> 
>   I would like to report a bug report for Ruby 1.6.6 on darwin (MacOSX
>   10.1.2).
> 
>   The following program makes Ruby crash whenever you use the number
>   400.
> 
>   # Save this as fact.rb
>   def fact(n)
>   if n == 0
>   1
>   else
>   n * fact(n-1)
>   end
>   end
>   print fact(ARGV[0].to_i), "\n"
> 
> 
>   For instance, ruby fact.rb 40 works but ruby fact.rb 400 crashes Ruby.
> 

I'm seeing that this works fine though n = 51. At n = 52 it just hangs. Then
when I type ^C it says "Illegal instruction". Like so:

> [dslstat473:~/Documents/Projects] chrisg% ruby fact.rb 51
> 1551118753287382280224243016469303211063259720016986112000000000000
> [dslstat473:~/Documents/Projects] chrisg% ruby fact.rb 52
> ^CIllegal instruction
> [dslstat473:~/Documents/Projects] chrisg%

Note: "Normal Ruby programs say "Interrupted" when I ^C them while they are
running.

-- 
C++: The power, elegance and simplicity of a hand grenade.