tests/array.pure.lisp

   1 ;;;; This software is part of the SBCL system. See the README file for
   2 ;;;; more information.
   3 ;;;;
   4 ;;;; While most of SBCL is derived from the CMU CL system, the test
   5 ;;;; files (like this one) were written from scratch after the fork
   6 ;;;; from CMU CL.
   7 ;;;;
   8 ;;;; This software is in the public domain and is provided with
   9 ;;;; absolutely no warranty. See the COPYING and CREDITS files for
  10 ;;;; more information.
  11
  12 (in-package :cl-user)
  13
  14 ;;; Array initialization has complicated defaulting for :ELEMENT-TYPE,
  15 ;;; and both compile-time and run-time logic takes a whack at it.
  16 (let ((testcases '(;; Bug 126, confusion between high-level default string
  17                    ;; initial element #\SPACE and low-level default array
  18                    ;; element #\NULL, is gone.
  19                    (#\null (make-array 11 :element-type 'character) simple-string)
  20                    (#\space (make-string 11 :initial-element #\space) string)
  21                    (#\* (make-string 11 :initial-element #\*))
  22                    (#\null (make-string 11))
  23                    (#\null (make-string 11 :initial-element #\null))
  24                    (#\x (make-string 11 :initial-element #\x))
  25                    ;; And the other tweaks made when fixing bug 126 didn't
  26                    ;; mess things up too badly either.
  27                    (0 (make-array 11) simple-vector)
  28                    (nil (make-array 11 :initial-element nil))
  29                    (12 (make-array 11 :initial-element 12))
  30                    (0 (make-array 11 :element-type '(unsigned-byte 4)) (simple-array (unsigned-byte 4) (*)))
  31                    (12 (make-array 11
  32                                    :element-type '(unsigned-byte 4)
  33                                    :initial-element 12)))))
  34   (dolist (testcase testcases)
  35     (destructuring-bind (expected-result form &optional type) testcase
  36       (unless (eql expected-result (aref (eval form) 3))
  37         (error "expected ~S in EVAL ~S" expected-result form))
  38       (unless (eql expected-result
  39                    (aref (funcall (compile nil `(lambda () ,form))) 3))
  40         (error "expected ~S in FUNCALL COMPILE ~S" expected-result form))
  41       ;; also do some testing of compilation and verification that
  42       ;; errors are thrown appropriately.
  43       (unless (eql expected-result
  44                    (funcall (compile nil `(lambda () (aref ,form 3)))))
  45         (error "expected ~S in COMPILED-AREF ~S" expected-result form))
  46       (when type
  47         (unless (eql expected-result
  48                      (funcall (compile nil `(lambda () (let ((x ,form))
  49                                                          (declare (type ,type x))
  50                                                          (aref x 3))))))
  51           (error "expected ~S in COMPILED-DECLARED-AREF ~S" expected-result form)))
  52       (when (ignore-errors (aref (eval form) 12))
  53         (error "error not thrown in EVAL ~S" form))
  54       (when (ignore-errors (aref (funcall (compile nil `(lambda () ,form))) 12))
  55         (error "error not thrown in FUNCALL COMPILE ~S"))
  56       (when (ignore-errors (funcall (compile nil `(lambda () (aref ,form 12)))))
  57         (error "error not thrown in COMPILED-AREF ~S" form))
  58       (when type
  59         (when (ignore-errors (funcall
  60                               (compile nil `(lambda () (let ((x ,form))
  61                                                          (declare (type ,type x))
  62                                                          (aref x 12))))))
  63           (error "error not thrown in COMPILED-DECLARED-AREF ~S" form))))))
  64
  65 ;;; On the SPARC, until sbcl-0.7.7.20, there was a bug in array
  66 ;;; references for small vector elements (spotted by Raymond Toy); the
  67 ;;; bug persisted on the PPC until sbcl-0.7.8.20.
  68 (let (vector)
  69   (loop for i below 64
  70         for list = (make-list 64 :initial-element 1)
  71         do (setf (nth i list) 0)
  72         do (setf vector (make-array 64 :element-type 'bit
  73                                        :initial-contents list))
  74         do (assert (= (funcall
  75                        (compile nil
  76                                 `(lambda (rmdr)
  77                                   (declare (type (simple-array bit (*)) rmdr)
  78                                            (optimize (speed 3) (safety 0)))
  79                                   (aref rmdr ,i)))
  80                        vector)
  81                       0))))
  82
  83 ;;; Following refactoring of sequence functions to detect bad type
  84 ;;; specifiers, REVERSE was left broken on vectors with fill pointers.
  85 (let ((a (make-array 10
  86                      :fill-pointer 5
  87                      :element-type 'character
  88                      :initial-contents "abcdefghij")))
  89   (assert (string= (reverse a) "edcba")))
  90
  91 ;;; ARRAY-IN-BOUNDS-P should work when given non-INDEXes as its
  92 ;;; subscripts (and return NIL, of course)
  93 (let ((a (make-array 10 :fill-pointer 5)))
  94   (assert (not (array-in-bounds-p a -1)))
  95   (assert (array-in-bounds-p a 3))
  96   (assert (array-in-bounds-p a 7))
  97   (assert (not (array-in-bounds-p a 11)))
  98   (assert (not (array-in-bounds-p a (1+ most-positive-fixnum)))))
  99
 100 ;;; arrays of bits should work:
 101 (let ((a (make-array '(10 10) :element-type 'bit :adjustable t)))
 102   (setf (bit a 0 0) 1)
 103   (assert (= (bit a 0 0) 1)))
 104 (let ((a (make-array '(10 10) :element-type 'bit)))
 105   (setf (sbit a 0 0) 1)
 106   (assert (= (sbit a 0 0) 1)))
 107
 108 (let ((x (copy-seq #*0011))
 109       (y (copy-seq #*0101)))
 110   (assert (equalp (bit-and x y nil) #*0001)))
 111
 112 ;;; arrays of NIL should work, FSVO "work".
 113 (let ((a (make-array '(10 10) :element-type 'nil)))
 114   (assert (= (array-total-size a) 100))
 115   (assert (equal (array-dimensions a) '(10 10)))
 116   (assert (eq (array-element-type a) 'nil)))
 117
 118 (assert (eq (upgraded-array-element-type 'nil) 'nil))
 119
 120 (multiple-value-bind (fun warn fail)
 121     (compile nil '(lambda () (aref (make-array 0) 0)))
 122   #+nil (assert fail) ; doesn't work, (maybe because ASSERTED-TYPE is NIL?)
 123   (assert (raises-error? (funcall fun) type-error)))
 124
 125 (multiple-value-bind (fun warn fail)
 126     (compile nil '(lambda () (aref (make-array 1) 1)))
 127   (assert fail)
 128   (assert (raises-error? (funcall fun) type-error)))
 129
 130 (multiple-value-bind (fun warn fail)
 131     (compile nil '(lambda () (make-array 5 :element-type 'undefined-type)))
 132   (assert warn))
 133
 134 (flet ((opaque-identity (x) x))
 135   (declare (notinline opaque-identity))
 136   ;; we used to have leakage from cross-compilation hosts of the INDEX
 137   ;; type, which prevented us from actually using all the large array
 138   ;; dimensions that we promised.  Let's make sure that we can create
 139   ;; an array with more than 2^24 elements, since that was a symptom
 140   ;; from the CLISP and OpenMCL hosts.
 141   (let ((big-array (opaque-identity
 142                     (make-array (expt 2 26) :element-type 'bit))))
 143     (assert (= (length big-array) (expt 2 26)))))
 144
 145 ;;; Bug reported by Kalle Olavi Niemitalo for CMUCL through Debian BTS
 146 (let ((array (make-array nil :initial-contents nil)))
 147   (assert (eql (aref array) nil)))
 148
 149 (let ((f (compile nil '(lambda ()
 150                         (let ((a (make-array '(4)
 151                                              :element-type 'base-char
 152                                              :initial-element #\z)))
 153                           (setf (aref a 0) #\a)
 154                           (setf (aref a 1) #\b)
 155                           (setf (aref a 2) #\c)
 156                           a)))))
 157   (assert (= (length (funcall f)) 4)))
 158
 159 (let ((x (make-array nil :initial-element 'foo)))
 160   (adjust-array x nil)
 161   (assert (eql (aref x) 'foo)))
 162
 163 ;;; BUG 315: "no bounds check for access to displaced array"
 164 ;;;  reported by Bruno Haible sbcl-devel "various SBCL bugs" from CLISP
 165 ;;;  test suite.
 166 (multiple-value-bind (val err)
 167     (ignore-errors
 168       (locally (declare (optimize (safety 3) (speed 0)))
 169         (let* ((x (make-array 10 :fill-pointer 4 :element-type 'character
 170                               :initial-element #\space :adjustable t))
 171                (y (make-array 10 :fill-pointer 4 :element-type 'character
 172                               :displaced-to x)))
 173           (adjust-array x '(5))
 174           (char y 5))))
 175   (assert (and (not val) (typep err 'sb-kernel:displaced-to-array-too-small-error))))
 176
 177 ;;; MISC.527: bit-vector bitwise operations used LENGTH to get a size
 178 ;;; of a vector
 179 (flet ((bit-vector-equal (v1 v2)
 180          (and (bit-vector-p v1) (bit-vector-p v2)
 181               (equal (array-dimension v1 0) (array-dimension v2 0))
 182               (loop for i below (array-dimension v1 0)
 183                     always (eql (aref v1 i) (aref v2 i))))))
 184   (let* ((length 1024)
 185          (v1 (make-array length :element-type 'bit :fill-pointer 0))
 186          (v2 (make-array length :element-type 'bit :fill-pointer 1)))
 187     (loop for i from 0 below length
 188           for x1 in '#1=(0 0 1 1 . #1#)
 189           and x2 in '#2=(0 1 0 1 . #2#)
 190           do (setf (aref v1 i) x1)
 191           do (setf (aref v2 i) x2))
 192     (loop for (bf lf) in '((bit-and logand)
 193                            (bit-andc1 logandc1)
 194                            (bit-andc2 logandc2)
 195                            (bit-eqv logeqv)
 196                            (bit-ior logior)
 197                            (bit-nand lognand)
 198                            (bit-nor lognor)
 199                            (bit-orc1 logorc1)
 200                            (bit-orc2 logorc2)
 201                            (bit-xor logxor)
 202                            ((lambda (x y) (bit-not x)) #.(lambda (x y) (lognot x))))
 203           for fun = (compile nil `(lambda (v)
 204                                     (declare (type (array bit (*)) v))
 205                                     (declare (optimize (speed 3) (safety 0)))
 206                                     (,bf v ,v2)))
 207           for r1 = (funcall fun v1)
 208           and r2 = (coerce (loop for i below length
 209                                  collect (logand 1 (funcall lf (aref v1 i) (aref v2 i))))
 210                            'bit-vector)
 211           do (assert (bit-vector-equal r1 r2)))))
 212
 213 ;;; CLHS, ADJUST-ARRAY: An error of type error is signaled if
 214 ;;; fill-pointer is supplied and non-nil but array has no fill pointer.
 215 (assert (eq :good
 216             (handler-case
 217                 (let ((array (make-array 12)))
 218                   (assert (not (array-has-fill-pointer-p array)))
 219                   (adjust-array array 12 :fill-pointer t)
 220                   array)
 221               (type-error ()
 222                 :good))))
 223