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107. address copy, shallow copy, deep copy

VBScript

JScript

Perl

use Storable 'dclone'

my @a = (1,2,[3,4]);
my $a2 = \@a;
my @a3 = @a;
my @a4 = @{dclone(\@a)};

PHP

$a = array(1,2,array(3,4));
$a2 =& $a;
none
$a4 = $a;

Python

import copy

a = [1,2,[3,4]]
a2 = a
a3 = list(a)
a4 = copy.deepcopy(a)

Ruby

a = [1,2,[3,4]]
a2 = a
a3 = a.dup
a4 = Marshal.load(Marshal.dump(a))

PowerShell

Scala

F#

C

C++

C++Builder

VC++

C#

Java

Objective-C

D

VB

VB.NET

Delphi

Ada

PL/SQL

T-SQL