use strict ;
    use warnings ;
    use IO::Uncompress::Bunzip2 qw(bunzip2 $Bunzip2Error) ;
    use IO::File ;
    my $input = new IO::File "<file1.txt.bz2" or die "Cannot open 'fil
+e1.txt.bz2': $!\n" ;
    my $buffer ;
    bunzip2 $input => \$buffer or die "bunzip2 failed: $Bunzip2Error\n
+";
[download]

In the doc page (http://perldoc.perl.org/IO/Uncompress/Bunzip2.html#OO-Interface), it is stated that \$buffer in the sample code can be an array reference. So I try to write like this:

    use strict ;
    use warnings ;
    use IO::Uncompress::Bunzip2 qw(bunzip2 $Bunzip2Error) ;
    use IO::File ;
    my $input = new IO::File "<file1.txt.bz2" or die "Cannot open 'fil
+e1.txt.bz2': $!\n" ;
    my $buffer = \@apple ;
    bunzip2 $input => $buffer or die "bunzip2 failed: $Bunzip2Error\n"
+;
    print @{$buffer};
    foreach (@{$buffer})
    {
        # do something
    }
[download]

But what I get is "Can't use an undefined value as an array reference..." and print out SCALAR {0x266a6ac}. Anybody can help me?

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