in reply to Re^3: Sorting, recursion, and tail-call optimizations
in thread Sorting, recursion, and tail-call optimizations

"Bus error" is likely to translate to "Invalid access": using a bad pointer.

DWIM is Perl's answer to Gödel
  • Comment on Re^4: Sorting, recursion, and tail-call optimizations

In Section Seekers of Perl Wisdom