$#array returns the last index in a array. So, one less than the number of elements in a array.
The code above is pretty ugly, and I would replace it by 
if (scalar @missing)

[download]

other examples: 
scalar @array == ($#array + 1) 
# is always true unless you redefine where the index starts.


for my $i (0..$#array) 
{
  # loops through the array by index number  
}

[download]

In reply to Re: What does $# stand for? by tstock
in thread What does $# stand for? by Kiko

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