(assert (equal (bit-xor a b) #*001111111111111111111111111111111))
(assert (equal (bit-and a b) #*010000000000000000000000000000000)))
;; now test the biggy, mostly that it works...
+ #-x86-64 ; except on machines where addressable space is likely to be
+ ; much bigger than physical memory
(let ((a (make-array (1- array-dimension-limit) :element-type 'bit :initial-element 0))
(b (make-array (1- array-dimension-limit) :element-type 'bit :initial-element 0)))
(bit-not a a)
(assert (= (aref a (- array-dimension-limit 2)) 1))
(bit-and a b a)
(assert (= (aref a 0) 0))
- (assert (= (aref a (- array-dimension-limit 2)) 0))))
+ (assert (= (aref a (- array-dimension-limit 2)) 0)))
+ ;; a special COUNT transform on bitvectors; triggers on (>= SPEED SPACE)
+ (locally
+ (declare (optimize (speed 3) (space 1)))
+ (let ((bv1 (make-array 5 :element-type 'bit))
+ (bv2 (make-array 0 :element-type 'bit))
+ (bv3 (make-array 68 :element-type 'bit)))
+ (declare (type simple-bit-vector bv1 bv2 bv3))
+ (setf (sbit bv3 42) 1)
+ ;; bitvector smaller than the word size
+ (assert (= 0 (count 1 bv1)))
+ (assert (= 5 (count 0 bv1)))
+ ;; special case of 0-length bitvectors
+ (assert (= 0 (count 1 bv2)))
+ (assert (= 0 (count 0 bv2)))
+ ;; bitvector larger than the word size
+ (assert (= 1 (count 1 bv3)))
+ (assert (= 67 (count 0 bv3))))))
(bit-vector-test)
\f