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)))