From: Michel Martens <blaumag@...>
Date: 2005-01-20T00:11:40+09:00
Subject: Re: value by reference

It's easy to accomplish this task with strings:

def do_something(a, b, c)
   a.replace((a.to_i + 1).to_s)
   b.replace((b.to_i + 2).to_s)
   c.replace((c.to_i + 3).to_s)
end

a, b, c = '5', '6', '7'
do_something(a, b, c)

It would be nice to have a replace method for every object, then we could write:

def do_something(a, b, c)
   a.replace(a + 1)
   b.replace(b + 2)
   c.replace(c + 3)
end

a, b, c = 5, 6, 7
do_something(a, b, c)