From: "Shot (Piotr Szotkowski)" <shot@...>
Date: 2009-11-14T22:26:40+09:00
Subject: Re: how to copy array in ruby

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Ralph Shnelvar:

> Is there a way to make a deep copy? That is ... in the code
> below, could b.dup be replaced with something like b.deepdup?

If the contents of the array are marshalable, you can
try the idiomatic Marshal.dump/Marshal.load cycle:

>> array =3D [[:a1, :a2], :b]
=3D> [[:a1, :a2], :b]
>> dup =3D array.dup
=3D> [[:a1, :a2], :b]
>> dup[0] << :a3
=3D> [:a1, :a2, :a3]
>> dup
=3D> [[:a1, :a2, :a3], :b]
>> array
=3D> [[:a1, :a2, :a3], :b]
>> deep =3D Marshal.load Marshal.dump(array)
=3D> [[:a1, :a2, :a3], :b]
>> deep[0] << :a4
=3D> [:a1, :a2, :a3, :a4]
>> deep
=3D> [[:a1, :a2, :a3, :a4], :b]
>> array
=3D> [[:a1, :a2, :a3], :b]

=E2=80=94 Shot
--=20
Add argentinas-dst-2009.diff: Disable DST switch for Argentina tomorrow,
as the Argentina government decided yesterday. Careful planning is boring.
                     [Martin Pitt, tzdata 2009n-0ubuntu0.9.04.1 changelog]

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