numerical computation locks up ruby

Posted by kolosy on Stack Overflow See other posts from Stack Overflow or by kolosy
Published on 2012-06-19T19:45:49Z Indexed on 2012/06/19 21:16 UTC
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ruby

|

ruby-on-rails-3

i'm trying to implement an id obfuscation scheme, with a simple hash borrowed elsewhere. i've added a method on the application helper:

  @@M_ID = 2**31-1
  @@PRIME = 1580030173
  @@PRIME_INVERSE = 59260789 # (calculated from MAXID and PRIME offline)

  def obfuscate_id(x)
    if x
      return ((x * @@PRIME) & @@M_ID)
    else
      x
    end
  end

for some reason, whenever this is called, ruby locks up, and starts eating up disk space on my mac... like - gigs of it. any ideas?

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