Please read Markup in the Monastery, and put <code>...</code> tags around your code.

You probably don't want to assing [] to @sub - that way the array doesn't become empty, but holds a single value, which is a reference to an empty array. Use @sub = () instead.

Also you'll probably want $graph[$i] = \@sub (no my before it. You're assigning to a part of an existing data structure, declaring a new variable doesn't make sense in that context).

Also please read perllol, which talks about arrays of array references.

Perl 6 - second systems done right

In reply to Re: Writing an array inside an array by moritz
in thread Writing an array inside an array by talha099

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