\f
;;;; miscellaneous accessor functions
-;;; These functions are needed by the interpreter, 'cause the compiler
-;;; inlines them.
+;;; These functions are only needed by the interpreter, 'cause the
+;;; compiler inlines them.
(macrolet ((def-frob (name)
`(progn
(defun ,name (array)
(fixnum index))
(%check-bound array bound index))
-;;; the guts of the WITH-ARRAY-DATA macro (except when DEFTRANSFORM
-;;; %WITH-ARRAY-DATA takes over)
(defun %with-array-data (array start end)
- (declare (array array) (type index start) (type (or index null) end))
- ;; FIXME: The VALUES declaration here is correct, but as of SBCL
- ;; 0.6.6, the corresponding runtime assertion is implemented
- ;; horribly inefficiently, with a full call to %TYPEP for every
- ;; call to this function. As a quick fix, I commented it out,
- ;; but the proper fix would be to fix up type checking.
- ;;
- ;; A simpler test case for the optimization bug is
- ;; (DEFUN FOO (X)
- ;; (DECLARE (TYPE INDEXOID X))
- ;; (THE (VALUES INDEXOID)
- ;; (VALUES X)))
- ;; which also compiles to a full call to %TYPEP.
- #+nil (declare (values (simple-array * (*)) index index index))
- (let* ((size (array-total-size array))
- (end (cond (end
- (unless (<= end size)
- (error "End ~D is greater than total size ~D."
- end size))
- end)
- (t size))))
- (when (> start end)
- (error "Start ~D is greater than end ~D." start end))
- (do ((data array (%array-data-vector data))
- (cumulative-offset 0
- (+ cumulative-offset
- (%array-displacement data))))
- ((not (array-header-p data))
- (values (the (simple-array * (*)) data)
- (the index (+ cumulative-offset start))
- (the index (+ cumulative-offset end))
- (the index cumulative-offset)))
- (declare (type index cumulative-offset)))))
+ (%with-array-data-macro array start end :fail-inline? t))
+
+;;; It'd waste space to expand copies of error handling in every
+;;; inline %WITH-ARRAY-DATA, so we have them call this function
+;;; instead. This is just a wrapper which is known never to return.
+(defun failed-%with-array-data (array start end)
+ (declare (notinline %with-array-data))
+ (%with-array-data array start end)
+ (error "internal error: shouldn't be here with valid parameters"))
\f
;;;; MAKE-ARRAY
(eval-when (:compile-toplevel :execute)
- (sb!xc:defmacro pick-type (type &rest specs)
- `(cond ,@(mapcar #'(lambda (spec)
- `(,(if (eq (car spec) t)
+ (sb!xc:defmacro pick-vector-type (type &rest specs)
+ `(cond ,@(mapcar (lambda (spec)
+ `(,(if (eq (car spec) t)
t
`(subtypep ,type ',(car spec)))
- ,@(cdr spec)))
+ ,@(cdr spec)))
specs))))
;;; These functions are used in the implementation of MAKE-ARRAY for
;;; MAKE-ARRAY for any non-simple array. Thus, there's some value to
;;; making this somewhat efficient, at least not doing full calls to
;;; SUBTYPEP in the easy cases.
-(defun %vector-type-code (type)
+(defun %vector-widetag-and-n-bits (type)
(case type
;; Pick off some easy common cases.
;;
;; on smarter compiler transforms which do the calculation once
;; and for all in any reasonable user programs.)
((t)
- (values #.sb!vm:simple-vector-type #.sb!vm:word-bits))
- ((character base-char)
- (values #.sb!vm:simple-string-type #.sb!vm:byte-bits))
+ (values #.sb!vm:simple-vector-widetag #.sb!vm:n-word-bits))
+ ((character base-char standard-char)
+ (values #.sb!vm:simple-string-widetag #.sb!vm:n-byte-bits))
((bit)
- (values #.sb!vm:simple-bit-vector-type 1))
+ (values #.sb!vm:simple-bit-vector-widetag 1))
;; OK, we have to wade into SUBTYPEPing after all.
(t
- (pick-type type
- (base-char (values #.sb!vm:simple-string-type #.sb!vm:byte-bits))
- (bit (values #.sb!vm:simple-bit-vector-type 1))
+ ;; FIXME: The data here are redundant with
+ ;; *SPECIALIZED-ARRAY-ELEMENT-TYPE-PROPERTIES*.
+ (pick-vector-type type
+ (base-char (values #.sb!vm:simple-string-widetag #.sb!vm:n-byte-bits))
+ (bit (values #.sb!vm:simple-bit-vector-widetag 1))
((unsigned-byte 2)
- (values #.sb!vm:simple-array-unsigned-byte-2-type 2))
+ (values #.sb!vm:simple-array-unsigned-byte-2-widetag 2))
((unsigned-byte 4)
- (values #.sb!vm:simple-array-unsigned-byte-4-type 4))
+ (values #.sb!vm:simple-array-unsigned-byte-4-widetag 4))
((unsigned-byte 8)
- (values #.sb!vm:simple-array-unsigned-byte-8-type 8))
+ (values #.sb!vm:simple-array-unsigned-byte-8-widetag 8))
((unsigned-byte 16)
- (values #.sb!vm:simple-array-unsigned-byte-16-type 16))
+ (values #.sb!vm:simple-array-unsigned-byte-16-widetag 16))
((unsigned-byte 32)
- (values #.sb!vm:simple-array-unsigned-byte-32-type 32))
+ (values #.sb!vm:simple-array-unsigned-byte-32-widetag 32))
((signed-byte 8)
- (values #.sb!vm:simple-array-signed-byte-8-type 8))
+ (values #.sb!vm:simple-array-signed-byte-8-widetag 8))
((signed-byte 16)
- (values #.sb!vm:simple-array-signed-byte-16-type 16))
+ (values #.sb!vm:simple-array-signed-byte-16-widetag 16))
((signed-byte 30)
- (values #.sb!vm:simple-array-signed-byte-30-type 32))
+ (values #.sb!vm:simple-array-signed-byte-30-widetag 32))
((signed-byte 32)
- (values #.sb!vm:simple-array-signed-byte-32-type 32))
- (single-float (values #.sb!vm:simple-array-single-float-type 32))
- (double-float (values #.sb!vm:simple-array-double-float-type 64))
+ (values #.sb!vm:simple-array-signed-byte-32-widetag 32))
+ (single-float (values #.sb!vm:simple-array-single-float-widetag 32))
+ (double-float (values #.sb!vm:simple-array-double-float-widetag 64))
#!+long-float
(long-float
- (values #.sb!vm:simple-array-long-float-type #!+x86 96 #!+sparc 128))
+ (values #.sb!vm:simple-array-long-float-widetag
+ #!+x86 96 #!+sparc 128))
((complex single-float)
- (values #.sb!vm:simple-array-complex-single-float-type 64))
+ (values #.sb!vm:simple-array-complex-single-float-widetag 64))
((complex double-float)
- (values #.sb!vm:simple-array-complex-double-float-type 128))
+ (values #.sb!vm:simple-array-complex-double-float-widetag 128))
#!+long-float
((complex long-float)
- (values #.sb!vm:simple-array-complex-long-float-type
+ (values #.sb!vm:simple-array-complex-long-float-widetag
#!+x86 192
#!+sparc 256))
- (t (values #.sb!vm:simple-vector-type #.sb!vm:word-bits))))))
-(defun %complex-vector-type-code (type)
+ (t (values #.sb!vm:simple-vector-widetag #.sb!vm:n-word-bits))))))
+(defun %complex-vector-widetag (type)
(case type
;; Pick off some easy common cases.
((t)
- #.sb!vm:complex-vector-type)
+ #.sb!vm:complex-vector-widetag)
((character base-char)
- #.sb!vm:complex-string-type)
+ #.sb!vm:complex-string-widetag)
((bit)
- #.sb!vm:complex-bit-vector-type)
+ #.sb!vm:complex-bit-vector-widetag)
;; OK, we have to wade into SUBTYPEPing after all.
(t
- (pick-type type
- (base-char #.sb!vm:complex-string-type)
- (bit #.sb!vm:complex-bit-vector-type)
- (t #.sb!vm:complex-vector-type)))))
+ (pick-vector-type type
+ (base-char #.sb!vm:complex-string-widetag)
+ (bit #.sb!vm:complex-bit-vector-widetag)
+ (t #.sb!vm:complex-vector-widetag)))))
(defun make-array (dimensions &key
(element-type t)
(error "can't specify :DISPLACED-INDEX-OFFSET without :DISPLACED-TO"))
(if (and simple (= array-rank 1))
;; Its a (simple-array * (*))
- (multiple-value-bind (type bits) (%vector-type-code element-type)
+ (multiple-value-bind (type n-bits)
+ (%vector-widetag-and-n-bits element-type)
(declare (type (unsigned-byte 8) type)
- (type (integer 1 256) bits))
+ (type (integer 1 256) n-bits))
(let* ((length (car dimensions))
(array (allocate-vector
type
length
- (ceiling (* (if (= type sb!vm:simple-string-type)
+ (ceiling (* (if (= type sb!vm:simple-string-widetag)
(1+ length)
length)
- bits)
- sb!vm:word-bits))))
+ n-bits)
+ sb!vm:n-word-bits))))
(declare (type index length))
(when initial-element-p
(fill array initial-element))
(error "can't specify both :INITIAL-ELEMENT and ~
:INITIAL-CONTENTS"))
(unless (= length (length initial-contents))
- (error "There are ~D elements in the :INITIAL-CONTENTS, but ~
- the vector length is ~D."
+ (error "There are ~W elements in the :INITIAL-CONTENTS, but ~
+ the vector length is ~W."
(length initial-contents)
length))
(replace array initial-contents))
initial-contents initial-element initial-element-p)))
(array (make-array-header
(cond ((= array-rank 1)
- (%complex-vector-type-code element-type))
- (simple sb!vm:simple-array-type)
- (t sb!vm:complex-array-type))
+ (%complex-vector-widetag element-type))
+ (simple sb!vm:simple-array-widetag)
+ (t sb!vm:complex-array-widetag))
array-rank)))
(cond (fill-pointer
(unless (= array-rank 1)
(unless (and (fixnump fill-pointer)
(>= fill-pointer 0)
(<= fill-pointer length))
- (error "invalid fill-pointer ~D"
- fill-pointer))
+ ;; FIXME: should be TYPE-ERROR?
+ (error "invalid fill-pointer ~W"
+ fill-pointer))
fill-pointer))))
(setf (%array-fill-pointer-p array) t))
(t
(t
(unless (typep contents 'sequence)
(error "malformed :INITIAL-CONTENTS: ~S is not a ~
- sequence, but ~D more layer~:P needed."
+ sequence, but ~W more layer~:P needed."
contents
(- (length dimensions) axis)))
(unless (= (length contents) (car dims))
(error "malformed :INITIAL-CONTENTS: Dimension of ~
- axis ~D is ~D, but ~S is ~D long."
+ axis ~W is ~W, but ~S is ~W long."
axis (car dims) contents (length contents)))
(if (listp contents)
(dolist (content contents)
(list subscripts))
(let ((rank (array-rank array)))
(unless (= rank (length subscripts))
- (error "wrong number of subscripts, ~D, for array of rank ~D"
+ (error "wrong number of subscripts, ~W, for array of rank ~W"
(length subscripts) rank))
(if (array-header-p array)
(do ((subs (nreverse subscripts) (cdr subs))
(declare (fixnum index dim))
(unless (< -1 index dim)
(if invalid-index-error-p
- (error "invalid index ~D~[~;~:; on axis ~:*~D~] in ~S"
+ (error "invalid index ~W~[~;~:; on axis ~:*~W~] in ~S"
index axis array)
(return-from %array-row-major-index nil)))
(incf result (* chunk-size index))
(let ((index (first subscripts)))
(unless (< -1 index (length (the (simple-array * (*)) array)))
(if invalid-index-error-p
- (error "invalid index ~D in ~S" index array)
+ (error "invalid index ~W in ~S" index array)
(return-from %array-row-major-index nil)))
index))))
(defun array-in-bounds-p (array &rest subscripts)
#!+sb-doc
- "Returns T if the Subscipts are in bounds for the Array, Nil otherwise."
+ "Return T if the Subscipts are in bounds for the Array, Nil otherwise."
(if (%array-row-major-index array subscripts nil)
t))
(defun aref (array &rest subscripts)
#!+sb-doc
- "Returns the element of the Array specified by the Subscripts."
+ "Return the element of the Array specified by the Subscripts."
(row-major-aref array (%array-row-major-index array subscripts)))
(defun %aset (array &rest stuff)
(defun row-major-aref (array index)
#!+sb-doc
- "Returns the element of array corressponding to the row-major index. This is
+ "Return the element of array corressponding to the row-major index. This is
SETF'able."
(declare (optimize (safety 1)))
(row-major-aref array index))
(defun svref (simple-vector index)
#!+sb-doc
- "Returns the Index'th element of the given Simple-Vector."
+ "Return the INDEX'th element of the given Simple-Vector."
(declare (optimize (safety 1)))
(aref simple-vector index))
(defun bit (bit-array &rest subscripts)
#!+sb-doc
- "Returns the bit from the Bit-Array at the specified Subscripts."
+ "Return the bit from the BIT-ARRAY at the specified SUBSCRIPTS."
(declare (type (array bit) bit-array) (optimize (safety 1)))
(row-major-aref bit-array (%array-row-major-index bit-array subscripts)))
(defun sbit (simple-bit-array &rest subscripts)
#!+sb-doc
- "Returns the bit from the Simple-Bit-Array at the specified Subscripts."
+ "Return the bit from SIMPLE-BIT-ARRAY at the specified SUBSCRIPTS."
(declare (type (simple-array bit) simple-bit-array) (optimize (safety 1)))
(row-major-aref simple-bit-array
(%array-row-major-index simple-bit-array subscripts)))
(defun array-element-type (array)
#!+sb-doc
- "Returns the type of the elements of the array"
- (let ((type (get-type array)))
+ "Return the type of the elements of the array"
+ (let ((widetag (widetag-of array)))
(macrolet ((pick-element-type (&rest stuff)
- `(cond ,@(mapcar #'(lambda (stuff)
- (cons
- (let ((item (car stuff)))
- (cond ((eq item t)
- t)
- ((listp item)
- (cons 'or
- (mapcar #'(lambda (x)
- `(= type ,x))
- item)))
- (t
- `(= type ,item))))
- (cdr stuff)))
- stuff))))
+ `(cond ,@(mapcar (lambda (stuff)
+ (cons
+ (let ((item (car stuff)))
+ (cond ((eq item t)
+ t)
+ ((listp item)
+ (cons 'or
+ (mapcar (lambda (x)
+ `(= widetag ,x))
+ item)))
+ (t
+ `(= widetag ,item))))
+ (cdr stuff)))
+ stuff))))
+ ;; FIXME: The data here are redundant with
+ ;; *SPECIALIZED-ARRAY-ELEMENT-TYPE-PROPERTIES*.
(pick-element-type
- ((sb!vm:simple-string-type sb!vm:complex-string-type) 'base-char)
- ((sb!vm:simple-bit-vector-type sb!vm:complex-bit-vector-type) 'bit)
- (sb!vm:simple-vector-type t)
- (sb!vm:simple-array-unsigned-byte-2-type '(unsigned-byte 2))
- (sb!vm:simple-array-unsigned-byte-4-type '(unsigned-byte 4))
- (sb!vm:simple-array-unsigned-byte-8-type '(unsigned-byte 8))
- (sb!vm:simple-array-unsigned-byte-16-type '(unsigned-byte 16))
- (sb!vm:simple-array-unsigned-byte-32-type '(unsigned-byte 32))
- (sb!vm:simple-array-signed-byte-8-type '(signed-byte 8))
- (sb!vm:simple-array-signed-byte-16-type '(signed-byte 16))
- (sb!vm:simple-array-signed-byte-30-type '(signed-byte 30))
- (sb!vm:simple-array-signed-byte-32-type '(signed-byte 32))
- (sb!vm:simple-array-single-float-type 'single-float)
- (sb!vm:simple-array-double-float-type 'double-float)
+ ((sb!vm:simple-string-widetag sb!vm:complex-string-widetag) 'base-char)
+ ((sb!vm:simple-bit-vector-widetag
+ sb!vm:complex-bit-vector-widetag) 'bit)
+ (sb!vm:simple-vector-widetag t)
+ (sb!vm:simple-array-unsigned-byte-2-widetag '(unsigned-byte 2))
+ (sb!vm:simple-array-unsigned-byte-4-widetag '(unsigned-byte 4))
+ (sb!vm:simple-array-unsigned-byte-8-widetag '(unsigned-byte 8))
+ (sb!vm:simple-array-unsigned-byte-16-widetag '(unsigned-byte 16))
+ (sb!vm:simple-array-unsigned-byte-32-widetag '(unsigned-byte 32))
+ (sb!vm:simple-array-signed-byte-8-widetag '(signed-byte 8))
+ (sb!vm:simple-array-signed-byte-16-widetag '(signed-byte 16))
+ (sb!vm:simple-array-signed-byte-30-widetag '(signed-byte 30))
+ (sb!vm:simple-array-signed-byte-32-widetag '(signed-byte 32))
+ (sb!vm:simple-array-single-float-widetag 'single-float)
+ (sb!vm:simple-array-double-float-widetag 'double-float)
#!+long-float
- (sb!vm:simple-array-long-float-type 'long-float)
- (sb!vm:simple-array-complex-single-float-type '(complex single-float))
- (sb!vm:simple-array-complex-double-float-type '(complex double-float))
+ (sb!vm:simple-array-long-float-widetag 'long-float)
+ (sb!vm:simple-array-complex-single-float-widetag
+ '(complex single-float))
+ (sb!vm:simple-array-complex-double-float-widetag
+ '(complex double-float))
#!+long-float
- (sb!vm:simple-array-complex-long-float-type '(complex long-float))
- ((sb!vm:simple-array-type sb!vm:complex-vector-type
- sb!vm:complex-array-type)
+ (sb!vm:simple-array-complex-long-float-widetag '(complex long-float))
+ ((sb!vm:simple-array-widetag
+ sb!vm:complex-vector-widetag
+ sb!vm:complex-array-widetag)
(with-array-data ((array array) (start) (end))
(declare (ignore start end))
(array-element-type array)))
(defun array-rank (array)
#!+sb-doc
- "Returns the number of dimensions of the Array."
+ "Return the number of dimensions of ARRAY."
(if (array-header-p array)
(%array-rank array)
1))
(defun array-dimension (array axis-number)
#!+sb-doc
- "Returns length of dimension Axis-Number of the Array."
+ "Return the length of dimension AXIS-NUMBER of ARRAY."
(declare (array array) (type index axis-number))
(cond ((not (array-header-p array))
(unless (= axis-number 0)
(error "Vector axis is not zero: ~S" axis-number))
(length (the (simple-array * (*)) array)))
((>= axis-number (%array-rank array))
- (error "~D is too big; ~S only has ~D dimension~:P."
+ (error "Axis number ~W is too big; ~S only has ~D dimension~:P."
axis-number array (%array-rank array)))
(t
(%array-dimension array axis-number))))
(defun array-dimensions (array)
#!+sb-doc
- "Returns a list whose elements are the dimensions of the array"
+ "Return a list whose elements are the dimensions of the array"
(declare (array array))
(if (array-header-p array)
(do ((results nil (cons (array-dimension array index) results))
(defun array-total-size (array)
#!+sb-doc
- "Returns the total number of elements in the Array."
+ "Return the total number of elements in the Array."
(declare (array array))
(if (array-header-p array)
(%array-available-elements array)
(defun array-displacement (array)
#!+sb-doc
- "Returns values of :displaced-to and :displaced-index-offset options to
- make-array, or the defaults nil and 0 if not a displaced array."
- (declare (array array))
- (values (%array-data-vector array) (%array-displacement array)))
+ "Return the values of :DISPLACED-TO and :DISPLACED-INDEX-offset
+ options to MAKE-ARRAY, or NIL and 0 if not a displaced array."
+ (declare (type array array))
+ (if (and (array-header-p array) ; if unsimple and
+ (%array-displaced-p array)) ; displaced
+ (values (%array-data-vector array) (%array-displacement array))
+ (values nil 0)))
(defun adjustable-array-p (array)
#!+sb-doc
- "Returns T if (adjust-array array...) would return an array identical
+ "Return T if (ADJUST-ARRAY ARRAY...) would return an array identical
to the argument, this happens for complex arrays."
(declare (array array))
(not (typep array 'simple-array)))
(error 'simple-type-error
:datum vector
:expected-type '(and vector (satisfies array-has-fill-pointer-p))
- :format-control
- "~S is not an array with a fill-pointer."
+ :format-control "~S is not an array with a fill pointer."
:format-arguments (list vector))))
(defun %set-fill-pointer (vector new)
(error 'simple-type-error
:datum vector
:expected-type '(and vector (satisfies array-has-fill-pointer-p))
- :format-control "~S is not an array with a fill-pointer."
+ :format-control "~S is not an array with a fill pointer."
:format-arguments (list vector))))
+;;; FIXME: It'd probably make sense to use a MACROLET to share the
+;;; guts of VECTOR-PUSH between VECTOR-PUSH-EXTEND. Such a macro
+;;; should probably be based on the VECTOR-PUSH-EXTEND code (which is
+;;; new ca. sbcl-0.7.0) rather than the VECTOR-PUSH code (which dates
+;;; back to CMU CL).
(defun vector-push (new-el array)
#!+sb-doc
"Attempt to set the element of ARRAY designated by its fill pointer
vector
&optional
(extension (1+ (length vector))))
- #!+sb-doc
- "This is like Vector-Push except that if the fill pointer gets too
- large, the Vector is extended rather than Nil being returned."
(declare (vector vector) (fixnum extension))
(let ((fill-pointer (fill-pointer vector)))
(declare (fixnum fill-pointer))
(defun vector-pop (array)
#!+sb-doc
- "Attempts to decrease the fill-pointer by 1 and return the element
- pointer to by the new fill pointer. If the original value of the fill
- pointer is 0, an error occurs."
+ "Decrease the fill pointer by 1 and return the element pointed to by the
+ new fill pointer."
(declare (vector array))
(let ((fill-pointer (fill-pointer array)))
(declare (fixnum fill-pointer))
initial-contents fill-pointer
displaced-to displaced-index-offset)
#!+sb-doc
- "Adjusts the Array's dimensions to the given Dimensions and stuff."
+ "Adjust ARRAY's dimensions to the given DIMENSIONS and stuff."
(let ((dimensions (if (listp dimensions) dimensions (list dimensions))))
(cond ((/= (the fixnum (length (the list dimensions)))
(the fixnum (array-rank array)))
((numberp fill-pointer)
(when (> fill-pointer new-array-size)
(error "can't supply a value for :FILL-POINTER (~S) that is larger ~
- than the new length of the vector (~S)."
+ than the new length of the vector (~S)"
fill-pointer new-array-size))
fill-pointer)
((eq fill-pointer t)
(error "bogus value for :FILL-POINTER in ADJUST-ARRAY: ~S"
fill-pointer))))
+;;; Destructively alter VECTOR, changing its length to NEW-LENGTH,
+;;; which must be less than or equal to its current length.
(defun shrink-vector (vector new-length)
- #!+sb-doc
- "Destructively alter VECTOR, changing its length to NEW-LENGTH, which
- must be less than or equal to its current length."
(declare (vector vector))
(unless (array-header-p vector)
(macrolet ((frob (name &rest things)
`(etypecase ,name
- ,@(mapcar #'(lambda (thing)
- `(,(car thing)
- (fill (truly-the ,(car thing) ,name)
- ,(cadr thing)
- :start new-length)))
+ ,@(mapcar (lambda (thing)
+ (destructuring-bind (type-spec fill-value)
+ thing
+ `(,type-spec
+ (fill (truly-the ,type-spec ,name)
+ ,fill-value
+ :start new-length))))
things))))
+ ;; FIXME: The associations between vector types and initial
+ ;; values here are redundant with
+ ;; *SPECIALIZED-ARRAY-ELEMENT-TYPE-PROPERTIES*.
(frob vector
(simple-vector 0)
- (simple-base-string #.default-init-char)
+ (simple-base-string #.*default-init-char-form*)
(simple-bit-vector 0)
((simple-array (unsigned-byte 2) (*)) 0)
((simple-array (unsigned-byte 4) (*)) 0)
(setf (%array-fill-pointer vector) new-length)
vector)
+;;; Fill in array header with the provided information, and return the array.
(defun set-array-header (array data length fill-pointer displacement dimensions
&optional displacedp)
- #!+sb-doc
- "Fills in array header with provided information. Returns array."
(setf (%array-data-vector array) data)
(setf (%array-available-elements array) length)
(cond (fill-pointer
(defun zap-array-data-aux (old-data old-dims offset new-data new-dims)
(declare (fixnum offset))
- (let ((limits (mapcar #'(lambda (x y)
- (declare (fixnum x y))
- (1- (the fixnum (min x y))))
+ (let ((limits (mapcar (lambda (x y)
+ (declare (fixnum x y))
+ (1- (the fixnum (min x y))))
old-dims new-dims)))
(macrolet ((bump-index-list (index limits)
`(do ((subscripts ,index (cdr subscripts))
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