in reply to Re: Re: undefining hashes to free memory
in thread undefining hashes to free memory

If you run the same sub again, which uses the same lexical again, perl reuse the same memory for it.
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Re: Re: Re: Re: undefining hashes to free memory
by tigervamp (Friar) on Mar 15, 2004 at 22:26 UTC
    Okay, I understand what you are saying now, but this doesn't seem like a very good thing, especially in an anonymous block (which isn't what I'm using in the actual program but it's still not very smart).
      It is very much not a good thing, especially when Perl forgets to reinitialize that memory as happens with the infamous my $foo if cond(); bug when the condition is false.

      <gripe>Which would have triggered a warning in Perl 5.10, but p5p in its infinite wisdom decided that there would be too many real bugs reported, and therefore will only report a warning in the case where the author probably intended the odd behaviour.</gripe>