From: ara.t.howard@...
Date: 2006-03-25T23:40:04+09:00
Subject: Re: require a certain version of the ruby interpreter

On Sat, 25 Mar 2006, Ross Bamford wrote:

> def ensure_version(v)
>  raise "need #{v}" if VERSION.split('.').zip(v.split('.')).any? {|a,b| a < b}
> end
>
> (given that we don't need to worry about two-digit versions of course).


   harp:~ > cat a.rb
   def ensure_version(v)
     raise "need #{v}" if VERSION.split('.').zip(v.split('.')).any? {|a,b| a < b}
   end
   ensure_version "1.8.4"


   harp:~ > /usr/bin/ruby a.rb
   a.rb:2:in `ensure_version': undefined method `zip' for ["1", "6", "8"]:Array (NameError)
           from a.rb:4


my point is that this code does not 'ensure' version 1.8.4 - it blows up unless
version 1.8.x.

regards.

-a
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