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sbcl.loop
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(macroexpand-1 ' (loop for i from 0 below n
for elt in l
for tail on l
collect elt into q
finally (return (values q (rest tail)))))
(BLOCK NIL
(LET ((I 0) (#:LOOP-LIMIT-944 N))
(DECLARE (TYPE (AND NUMBER REAL) #:LOOP-LIMIT-944)
(TYPE (AND REAL NUMBER) I))
(LET ((ELT NIL) (#:LOOP-LIST-945 L))
(DECLARE (TYPE LIST #:LOOP-LIST-945))
(LET ((TAIL L))
(SB-LOOP::WITH-LOOP-LIST-COLLECTION-HEAD
(#:LOOP-LIST-HEAD-946 #:LOOP-LIST-TAIL-947 Q)
(SB-LOOP::LOOP-BODY NIL
(NIL NIL
(WHEN (>= I #:LOOP-LIMIT-944)
(GO SB-LOOP::END-LOOP))
NIL
(WHEN (ENDP #:LOOP-LIST-945)
(GO SB-LOOP::END-LOOP))
(SB-LOOP::LOOP-REALLY-DESETQ ELT
(CAR
#:LOOP-LIST-945))
NIL
(SB-LOOP::LOOP-REALLY-DESETQ #:LOOP-LIST-945
(CDR
#:LOOP-LIST-945))
NIL NIL (WHEN (ATOM TAIL) (GO SB-LOOP::END-LOOP))
NIL)
((SB-LOOP::LOOP-COLLECT-RPLACD
(#:LOOP-LIST-HEAD-946 #:LOOP-LIST-TAIL-947 Q)
(LIST ELT)))
(NIL (SB-LOOP::LOOP-REALLY-DESETQ I (1+ I))
(WHEN (>= I #:LOOP-LIMIT-944)
(GO SB-LOOP::END-LOOP))
NIL
(WHEN (ENDP #:LOOP-LIST-945)
(GO SB-LOOP::END-LOOP))
(SB-LOOP::LOOP-REALLY-DESETQ ELT
(CAR
#:LOOP-LIST-945))
NIL
(SB-LOOP::LOOP-REALLY-DESETQ #:LOOP-LIST-945
(CDR
#:LOOP-LIST-945))
NIL (SB-LOOP::LOOP-REALLY-DESETQ TAIL (CDR TAIL))
(WHEN (ATOM TAIL) (GO SB-LOOP::END-LOOP)) NIL)
((RETURN (VALUES Q (REST TAIL))))))))))
(BLOCK NIL
(LET ((I 0) (#:LOOP-LIMIT-944 N))
(DECLARE (TYPE (AND NUMBER REAL) #:LOOP-LIMIT-944)
(TYPE (AND REAL NUMBER) I))
(LET ((ELT NIL) (#:LOOP-LIST-945 L))
(DECLARE (TYPE LIST #:LOOP-LIST-945))
(LET ((TAIL L))
(LET* ((LOOP-LIST-HEAD-946 (LIST NIL))
(LOOP-LIST-TAIL-947 LOOP-LIST-HEAD-946)
(Q NIL))
(SB-LOOP::LOOP-BODY NIL
(NIL NIL
(WHEN (>= I LOOP-LIMIT-944) (GO SB-LOOP::END-LOOP)) NIL
(WHEN (ENDP LOOP-LIST-945) (GO SB-LOOP::END-LOOP))
(SB-LOOP::LOOP-REALLY-DESETQ ELT (CAR LOOP-LIST-945))
NIL
(SB-LOOP::LOOP-REALLY-DESETQ LOOP-LIST-945
(CDR LOOP-LIST-945))
NIL NIL (WHEN (ATOM TAIL) (GO SB-LOOP::END-LOOP)) NIL)
((SB-LOOP::LOOP-COLLECT-RPLACD
(LOOP-LIST-HEAD-946 LOOP-LIST-TAIL-947 Q) (LIST ELT)))
(NIL (SB-LOOP::LOOP-REALLY-DESETQ I (1+ I))
(WHEN (>= I LOOP-LIMIT-944) (GO SB-LOOP::END-LOOP)) NIL
(WHEN (ENDP LOOP-LIST-945) (GO SB-LOOP::END-LOOP))
(SB-LOOP::LOOP-REALLY-DESETQ ELT (CAR LOOP-LIST-945))
NIL
(SB-LOOP::LOOP-REALLY-DESETQ LOOP-LIST-945
(CDR LOOP-LIST-945))
NIL (SB-LOOP::LOOP-REALLY-DESETQ TAIL (CDR TAIL))
(WHEN (ATOM TAIL) (GO SB-LOOP::END-LOOP)) NIL)
((RETURN (VALUES Q (REST TAIL))))))))))
(BLOCK NIL
(LET ((I 0) (#:LOOP-LIMIT-944 N))
(DECLARE (TYPE (AND NUMBER REAL) #:LOOP-LIMIT-944)
(TYPE (AND REAL NUMBER) I))
(LET ((ELT NIL) (#:LOOP-LIST-945 L))
(DECLARE (TYPE LIST #:LOOP-LIST-945))
(LET ((TAIL L))
(LET* ((LOOP-LIST-HEAD-946 (LIST NIL))
(LOOP-LIST-TAIL-947 LOOP-LIST-HEAD-946)
(Q NIL))
(TAGBODY
(WHEN (>= I LOOP-LIMIT-944) (GO SB-LOOP::END-LOOP))
(WHEN (ENDP LOOP-LIST-945) (GO SB-LOOP::END-LOOP))
(SB-LOOP::LOOP-REALLY-DESETQ ELT (CAR LOOP-LIST-945))
(SB-LOOP::LOOP-REALLY-DESETQ LOOP-LIST-945 (CDR LOOP-LIST-945))
SB-LOOP::NEXT-LOOP
(WHEN (ATOM TAIL) (GO SB-LOOP::END-LOOP))
(SB-LOOP::LOOP-COLLECT-RPLACD (LOOP-LIST-HEAD-946 LOOP-LIST-TAIL-947 Q)
(LIST ELT))
(SB-LOOP::LOOP-REALLY-DESETQ I (1+ I))
(WHEN (>= I LOOP-LIMIT-944) (GO SB-LOOP::END-LOOP))
(WHEN (ENDP LOOP-LIST-945) (GO SB-LOOP::END-LOOP))
(SB-LOOP::LOOP-REALLY-DESETQ ELT (CAR LOOP-LIST-945))
(SB-LOOP::LOOP-REALLY-DESETQ LOOP-LIST-945 (CDR LOOP-LIST-945))
(SB-LOOP::LOOP-REALLY-DESETQ TAIL (CDR TAIL))
(GO SB-LOOP::NEXT-LOOP)
SB-LOOP::END-LOOP
(RETURN (VALUES Q (REST TAIL))))
(block nil
(let ((i 0)
(#:loop-limit-944 n))
(declare (type (and number real) #:loop-limit-944)
(type (and real number) i))
(let ((elt nil)
(#:loop-list-945 l))
(declare (type list #:loop-list-945))
(let ((tail l))
(let* ((#:loop-list-head-946 (list nil))
(#:loop-list-tail-947 #:loop-list-head-946)
(q nil))
(tagbody
(when (>= i #:loop-limit-944)
(go sb-loop::end-loop))
(when (endp #:loop-list-945)
(go sb-loop::end-loop))
(setq elt (car #:loop-list-945))
(setq #:loop-list-945 (cdr #:loop-list-945))
sb-loop::next-loop
(when (atom tail)
(go sb-loop::end-loop))
(progn
(rplacd #:loop-list-tail-947 (setq #:loop-list-tail-947 (list elt)))
(setq q (cdr #:loop-list-head-946)))
(setq i (1+ i))
(when (>= i #:loop-limit-944)
(go sb-loop::end-loop))
(when (endp #:loop-list-945)
(go sb-loop::end-loop))
(setq elt (car #:loop-list-945))
(setq #:loop-list-945 (cdr #:loop-list-945))
(setq tail (cdr tail))
(go sb-loop::next-loop)
sb-loop::end-loop
(return (values q (rest tail))))