That's Greenspun's 10th rule. The full version of which is, "Any sufficiently complicated C or Fortran program contains an ad-hoc, informally-specified, bug-ridden, slow implementation of half of CommonLisp."
Robert Morris' addendum is, "Including Common Lisp."
If you don't believe Robert Morris, tell me what LOOP does. :-)
(Note, this is the Robert Morris who wrote the first major internet worm, cofounded Viaweb with Paul Graham, and cofounded YCombinator, again with Paul Graham.)
Robert Morris' addendum is, "Including Common Lisp."
If you don't believe Robert Morris, tell me what LOOP does. :-)
(Note, this is the Robert Morris who wrote the first major internet worm, cofounded Viaweb with Paul Graham, and cofounded YCombinator, again with Paul Graham.)