Re: Re: foreach loop question

"You are correct - a foreach loop builds a temporary list, and iterates over that." I don't think this is true. Try this:

my @list = (1,2,3,4,5);
foreach (@list) {
  print $_."\n";
  push @list,$_.$_;
}
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This makes an infinite loop (at least until your memory runs out), so it appears that foreach is actually using the original list

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Re: Re: Re: foreach loop question by Mr. Muskrat (Canon) on Apr 16, 2003 at 22:06 UTC
This is documented in perlsyn. If any part of LIST is an array, foreach will get very confused if you add or remove elements within the loop body, for example with splice. So don't do that.	[reply]