How do I create a new array in memory?

by Buckaroo Buddha (Scribe)

on Jun 27, 2000 at 01:20 UTC ( [id://19919]=perlquestion: print w/replies, xml )

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Buckaroo Buddha has asked for the wisdom of the Perl Monks concerning the following question: ⭐ (arrays)

Hi there,
I'm trying to figure out how to make sure each array claims its own memoryspace.

How do I do that?

    while <> {
         @record = split(',',$_);
         $key = shift(@record);
         $list{$key} = \@record;
    }
[download]

Originally posted as a Categorized Question.

Comment on How do I create a new array in memory? Download Code

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Re: How do I create a new array in memory?⭐ by btrott (Parson) on Jun 27, 2000 at 02:03 UTC
You need to declare the variable lexically with my: `while (<>) { my @record = split /,/; my $key = shift @record; $list{$key} = \@record; }` [download] You can test this by printing out the array references; they should all have different addresses: `print join "\n", values(%list), '';` [download]	[reply] [d/l] [select]
Re: How do I create a new array in memory? by davorg (Chancellor) on Jun 27, 2000 at 15:09 UTC
The other way to do it is to take a copy of the array each time by using the anonymous array constructor. `while (<>) { my @record = split /,/; my $key = shift @record; $list{$key} = [@record]; }` [download]	[reply] [d/l]

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