Re: Parsing and scoring an Array of Arrays

My guess is this code:

while (@{$self->{_score}[$i][$base]} ne "0") 
{
    $last = $base;
    $base++; 
}
[download]

How many items are in the array at $i? Your code never checks. It keeps incrementing $base. Eventually, it's going to run out of items, and Perl will happily attempt to oblige you by autovivifying a new array entry at the new position. It won't be an array reference, though, and there's your error.

As a side note, be careful with your comparisons. You almost certainly don't want to say if ($x = 1) {...

Comment on Re: Parsing and scoring an Array of Arrays Select or Download Code

Replies are listed 'Best First'.
Re (tilly) 2: Parsing and scoring an Array of Arrays by tilly (Archbishop) on Aug 09, 2001 at 09:07 UTC
ObRandomTip: To avoid making the mistake: `if ($x = 1) { # etc }` [download] get into the habit of trying to put the variables on the right, not the left. It looks strange, but: `if (1 = $x) { # etc }` [download] is likely to give you a much more informative error message. (This habit will serve you in good stead in quite a few languages, not just Perl.)	[reply] [d/l] [select]
Re: Re: Parsing and scoring an Array of Arrays by mr_dont (Beadle) on Aug 09, 2001 at 04:16 UTC
Chromatic, I think that you are right... Thanks, Mr. Don't!	[reply]