Yes. Next question.

Seriously, what's wrong with a much easier approach like this? 

our $FOO_HAS_BEEN_CALLED;

sub foo {
  if (not $FOO_HAS_BEEN_CALLED) {
      call_me_only_once();
      $FOO_HAS_BEEN_CALLED = 1;
  }
}

[download]
Or maybe this code belongs in a BEGIN block.

In reply to Re: Is modifying the symbol table to redefine subroutines evil? by perrin
in thread Is modifying the symbol table to redefine subroutines evil? by tlm

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