Re: Stepping through a hash while modifiying its content

# Access the hash, and do the deed including any hashkey, value deletions

You should replace that comment with some code :)

You could delay deletion :)

{
   my @goners;
   while( my( $k, $v ) = each %hash ){
      push @goners, $k;
   }
   delete @hash{ @goners };
   undef @goners;
}
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Comment on Re: Stepping through a hash while modifiying its content Download Code

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Re^2: Stepping through a hash while modifiying its content by Gorgarian (Initiate) on Dec 28, 2012 at 12:19 UTC
That is a good suggestion too -- I could run the code in blocks, saving up the deletions, and doing a clean-up after each 1M iterations, then restarting the while loop. I will see how much longer it takes to run after restricting myself to deleting only deleting the most recent iteration reference, and if it is a problem, move to your idea as a Plan B. Thanks for your help. Learning ... :)	[reply]