From: Adam Akhtar <adamtemporary@...>
Date: 2008-03-24T17:12:15+09:00
Subject: functions, arguments and changing their value permantently

Im coming over to Ruby from C++ after a long break from programming. One
thing im having to get used to is how ruby references or points directly
to variables. In C++ I can pass a variable as an argument to a function
and then change the value within the function. This change will be
reflected outside of the function. How do i go about doing this in ruby?

i.e.

x = 10

def changeit var
var = 20
end

changeit x
puts x
==> 20
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