beowulf.host
provides Lisp 1.5 functions which can’t be (or can’t efficiently be) implemented in Lisp 1.5, which therefore need to be implemented in the host language, in this case Clojure.
AND
(AND & args)T if and only if none of my args evaluate to either F or NIL, else F.
In beowulf.host principally because I don’t yet feel confident to define varargs functions in Lisp.
QUOTIENT
(QUOTIENT x y)I’m not certain from the documentation whether Lisp 1.5 QUOTIENT returned the integer part of the quotient, or a realnum representing the whole quotient. I am for now implementing the latter.
RPLACA
(RPLACA cell value)Replace the CAR pointer of this cell with this value. Dangerous, should really not exist, but does in Lisp 1.5 (and was important for some performance hacks in early Lisps)
RPLACD
(RPLACD cell value)Replace the CDR pointer of this cell with this value. Dangerous, should really not exist, but does in Lisp 1.5 (and was important for some performance hacks in early Lisps)