Perl doesn't have two-dimensional arrays. What you are actually using is an array where each element happens to be a reference to another array.

When dealing with a single array, Perl will expand it as needed, so there's rarely any need to pre-define its size. Because of autovivification, the same applies to "2d arrays".

If you really did want to pre-allocate your "2d array", you could do it as follows: 

my @summary;
$#summary = $numWks - 1;

foreach (@summary) {
   my @days;
   $#days = 7 - 1;
   $_ = \@days;
}

[download]

However, I think a simple my @summary; will suffice for you.

In reply to Re: pre-size a two-dimensional array by ikegami
in thread pre-size a two-dimensional array by rightfield

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