From: Brian Candler <B.Candler@...>
Date: 2003-07-17T00:56:23+09:00
Subject: Re: Other languages' features in Ruby

On Thu, Jul 17, 2003 at 12:31:38AM +0900, Ben Giddings wrote:
> Ok, but compare:
> 
> "Test 473 failed: expecting 17, got 18"
> 
> with
> 
> "warning: on line 765 of myfile.rb: @myvar may not have been initialized"

$ ruby -w -e 'puts "hello" if @myvar == 3'
-e:1: warning: instance variable @myvar not initialized

Just put "#!/usr/local/bin/ruby -w" at the start of all your scripts. As
Matz has mused before, it should have been compulsory (with an option to
turn it *off*)

Regards,

Brian.