tests/seq.impure.lisp

   1 ;;;; tests related to sequences
   2
   3 ;;;; This file is impure because we want to be able to use DEFUN.
   4
   5 ;;;; This software is part of the SBCL system. See the README file for
   6 ;;;; more information.
   7 ;;;;
   8 ;;;; While most of SBCL is derived from the CMU CL system, the test
   9 ;;;; files (like this one) were written from scratch after the fork
  10 ;;;; from CMU CL.
  11 ;;;;
  12 ;;;; This software is in the public domain and is provided with
  13 ;;;; absolutely no warranty. See the COPYING and CREDITS files for
  14 ;;;; more information.
  15
  16 (load "assertoid.lisp")
  17
  18 (defpackage :seq-test
  19   (:use :cl :assertoid))
  20
  21 (in-package :seq-test)
  22
  23 ;;; helper functions for exercising SEQUENCE code on data of many
  24 ;;; specialized types, and in many different optimization scenarios
  25 (defun for-every-seq-1 (base-seq snippet)
  26   (dolist (seq-type '(list
  27                       (simple-array t 1)
  28                       (vector t)
  29                       (simple-array character 1)
  30                       (vector character)
  31                       (simple-array (signed-byte 4) 1)
  32                       (vector (signed-byte 4))))
  33     (flet ((entirely (eltype)
  34              (every (lambda (el) (typep el eltype)) base-seq)))
  35       (dolist (declaredness '(nil t))
  36         (dolist (optimization '(((speed 3) (space 0))
  37                                 ((speed 2) (space 2))
  38                                 ((speed 1) (space 2))
  39                                 ((speed 0) (space 1))))
  40           (let* ((seq (if (eq seq-type 'list)
  41                           (coerce base-seq 'list)
  42                           (destructuring-bind (type-first &rest type-rest)
  43                               seq-type
  44                             (ecase type-first
  45                               (simple-array
  46                                (destructuring-bind (eltype one) type-rest
  47                                  (assert (= one 1))
  48                                  (if (entirely eltype)
  49                                      (coerce base-seq seq-type)
  50                                      (return))))
  51                               (vector
  52                                (destructuring-bind (eltype) type-rest
  53                                  (if (entirely eltype)
  54                                      (let ((initial-element
  55                                             (cond ((subtypep eltype 'character)
  56                                                    #\!)
  57                                                   ((subtypep eltype 'number)
  58                                                    0)
  59                                                   (t #'error))))
  60                                        (replace (make-array
  61                                                  (+ (length base-seq)
  62                                                     (random 3))
  63                                                  :element-type eltype
  64                                                  :fill-pointer
  65                                                  (length base-seq)
  66                                                  :initial-element
  67                                                  initial-element)
  68                                                 base-seq))
  69                                      (return))))))))
  70                  (lambda-expr `(lambda (seq)
  71                                  ,@(when declaredness
  72                                      `((declare (type ,seq-type seq))))
  73                                  (declare (optimize ,@optimization))
  74                                  ,snippet)))
  75             (format t "~&~S~%" lambda-expr)
  76             (multiple-value-bind (fun warnings-p failure-p)
  77                 (compile nil lambda-expr)
  78               (when (or warnings-p failure-p)
  79                 (error "~@<failed compilation:~2I ~_LAMBDA-EXPR=~S ~_WARNINGS-P=~S ~_FAILURE-P=~S~:@>"
  80                        lambda-expr warnings-p failure-p))
  81               (format t "~&~S ~S~%~S~%~S ~S~%"
  82                       base-seq snippet seq-type declaredness optimization)
  83               (format t "~&(TYPEP SEQ 'SIMPLE-ARRAY)=~S~%"
  84                       (typep seq 'simple-array))
  85               (unless (funcall fun seq)
  86                 (error "~@<failed test:~2I ~_BASE-SEQ=~S ~_SNIPPET=~S ~_SEQ-TYPE=~S ~_DECLAREDNESS=~S ~_OPTIMIZATION=~S~:@>"
  87                        base-seq
  88                        snippet
  89                        seq-type
  90                        declaredness
  91                        optimization)))))))))
  92 (defun for-every-seq (base-seq snippets)
  93   (dolist (snippet snippets)
  94     (for-every-seq-1 base-seq snippet)))
  95
  96 ;;; a wrapper to hide declared type information from the compiler, so
  97 ;;; we don't get stopped by compiler warnings about e.g. compiling
  98 ;;; (POSITION 1 #() :KEY #'ABS) when #() has been coerced to a string.
  99 (defun indiscriminate (fun)
 100   (lambda (&rest rest) (apply fun rest)))
 101
 102 ;;; asymmetric test arg order example from ANSI FIND definition page
 103 (assert (eql #\space ; original example, depends on ASCII character ordering
 104              (find #\d "here are some letters that can be looked at"
 105                    :test #'char>)))
 106 (assert (eql #\e ; modified example, depends only on standard a-z ordering
 107              (find #\f "herearesomeletters" :test #'char>)))
 108 (assert (eql 4 ; modified more, avoids charset technicalities completely
 109              (find 5 '(6 4) :test '>)))
 110
 111 ;;; tests of FIND, POSITION, FIND-IF, and POSITION-IF (and a few for
 112 ;;; deprecated FIND-IF-NOT and POSITION-IF-NOT too)
 113 (for-every-seq #()
 114   '((null (find 1 seq))
 115     (null (find 1 seq :from-end t))
 116     (null (position 1 seq :key (indiscriminate #'abs)))
 117     (null (position nil seq :test (constantly t)))
 118     (null (position nil seq :test nil))
 119     (null (position nil seq :test-not nil))
 120     (null (find-if #'1+ seq :key (indiscriminate #'log)))
 121     (null (position-if #'identity seq :from-end t))
 122     (null (find-if-not #'packagep seq))
 123     (null (position-if-not #'packagep seq :key nil))))
 124 (for-every-seq #(1)
 125   '((null (find 2 seq))
 126     ;; Get the argument ordering for asymmetric tests like #'> right.
 127     ;; (bug reported and fixed by Alexey Dejneka sbcl-devel 2001-10-17)
 128     (eql 1 (find 2 seq :test #'>))
 129     (find 2 seq :key #'1+)
 130     (find 1 seq :from-end t)
 131     (null (find 1 seq :from-end t :start 1))
 132     (null (find 0 seq :from-end t))
 133     (eql 0 (position 1 seq :key #'abs))
 134     (null (position nil seq :test 'equal))
 135     (eql 1 (find-if #'1- seq :key #'log))
 136     (eql 0 (position-if #'identity seq :from-end t))
 137     (null (find-if-not #'sin seq))
 138     (eql 0 (position-if-not #'packagep seq :key 'identity))))
 139 (for-every-seq #(1 2 3 2 1)
 140   '((find 3 seq)
 141     (find 3 seq :from-end 'yes)
 142     (eql 1 (position 1.5 seq :test #'<))
 143     (eql 0 (position 0 seq :key '1-))
 144     (eql 4 (position 0 seq :key '1- :from-end t))
 145     (eql 2 (position 4 seq :key '1+))
 146     (eql 2 (position 4 seq :key '1+ :from-end t))
 147     (eql 1 (position 2 seq))
 148     (eql 1 (position 2 seq :start 1))
 149     (null (find 2 seq :start 1 :end 1))
 150     (eql 3 (position 2 seq :start 2))
 151     (eql 3 (position 2 seq :key nil :from-end t))
 152     (eql 2 (position 3 seq :test '=))
 153     (eql 0 (position 3 seq :test-not 'equalp))
 154     (eql 2 (position 3 seq :test 'equal :from-end t))
 155     (null (position 4 seq :test #'eql))
 156     (null (find-if #'packagep seq))
 157     (eql 1 (find-if #'plusp seq))
 158     (eql 3 (position-if #'plusp seq :key #'1- :from-end t))
 159     (eql 1 (position-if #'evenp seq))
 160     (eql 3 (position-if #'evenp seq :from-end t))
 161     (eql 2 (position-if #'plusp seq :from-end nil :key '1- :start 2))
 162     (eql 3 (position-if #'plusp seq :from-end t :key '1- :start 2))
 163     (null (position-if #'plusp seq :from-end t :key '1- :start 2 :end 2))
 164     (null (find-if-not #'plusp seq))
 165     (eql 0 (position-if-not #'evenp seq))
 166     (eql 0 (search #(1) seq))
 167     (eql 1 (search #(4 5) seq :key 'oddp))
 168     (eql 1 (search #(-2) seq :test (lambda (a b) (= (- a) b))))
 169     (eql 4 (search #(1) seq :start2 1))
 170     (null (search #(3) seq :start2 3))
 171     (eql 2 (search #(3) seq :start2 2))
 172     (eql 0 (search #(1 2) seq))
 173     (null (search #(2 1 3) seq))
 174     (eql 0 (search #(0 1 2 4) seq :start1 1 :end1 3))
 175     (eql 3 (search #(0 2 1 4) seq :start1 1 :end1 3))
 176     (eql 4 (search #(1) seq :from-end t))
 177     (eql 0 (search #(1 2) seq :from-end t))
 178     (null (search #(1 2) seq :from-end t :start2 1))
 179     (eql 0 (search #(0 1 2 4) seq :from-end t :start1 1 :end1 3))
 180     (eql 3 (search #(0 2 1 4) seq :from-end t :start1 1 :end1 3))
 181     (null (search #(2 1 3) seq :from-end t))))
 182 (for-every-seq "string test"
 183   '((null (find 0 seq))
 184     (null (find #\D seq :key #'char-upcase))
 185     (find #\E seq :key #'char-upcase)
 186     (null (find #\e seq :key #'char-upcase))
 187     (eql 3 (position #\i seq))
 188     (eql 0 (position #\s seq :key #'char-downcase))
 189     (eql 1 (position #\s seq :key #'char-downcase :test #'char/=))
 190     (eql 9 (position #\s seq :from-end t :test #'char=))
 191     (eql 10 (position #\s seq :from-end t :test #'char/=))
 192     (eql 4 (position #\N seq :from-end t :key 'char-upcase :test #'char-equal))
 193     (eql 5 (position-if (lambda (c) (equal #\g c)) seq))
 194     (eql 5 (position-if (lambda (c) (equal #\g c)) seq :from-end t))
 195     (find-if #'characterp seq)
 196     (find-if (lambda (c) (typep c 'base-char)) seq :from-end t)
 197     (null (find-if 'upper-case-p seq))))
 198
 199 ;;; SUBSEQ
 200 (let ((avec (make-array 10
 201                         :fill-pointer 4
 202                         :initial-contents '(0 1 2 3 iv v vi vii iix ix))))
 203   ;; These first five always worked AFAIK.
 204   (assert (equalp (subseq avec 0 3) #(0 1 2)))
 205   (assert (equalp (subseq avec 3 3) #()))
 206   (assert (equalp (subseq avec 1 3) #(1 2)))
 207   (assert (equalp (subseq avec 1) #(1 2 3)))
 208   (assert (equalp (subseq avec 1 4) #(1 2 3)))
 209   ;; SBCL bug found ca. 2002-05-01 by OpenMCL's correct handling of
 210   ;; SUBSEQ, CSR's driving portable cross-compilation far enough to
 211   ;; reach the SUBSEQ calls in assem.lisp, and WHN's sleazy
 212   ;; translation of old CMU CL new-assem.lisp into sufficiently grotty
 213   ;; portable Lisp that it passed suitable illegal values to SUBSEQ to
 214   ;; exercise the bug:-|
 215   ;;
 216   ;; SUBSEQ should check its END value against logical LENGTH, not
 217   ;; physical ARRAY-DIMENSION 0.
 218   ;;
 219   ;; fixed in sbcl-0.7.4.22 by WHN
 220   (assert (null (ignore-errors (aref (subseq avec 1 5) 0)))))
 221
 222 ;;; FILL
 223 (defun test-fill-typecheck (x)
 224   (declare (optimize (safety 3) (space 2) (speed 1)))
 225   (fill (make-string 10) x))
 226
 227 (assert (string= (test-fill-typecheck #\@) "@@@@@@@@@@"))
 228 ;;; BUG 186, fixed in sbcl-0.7.5.5
 229 (assert (null (ignore-errors (test-fill-typecheck 4097))))
 230
 231 ;;; MAKE-SEQUENCE, COERCE, CONCATENATE, MERGE, MAP and requested
 232 ;;; result type (BUGs 46a, 46b, 66)
 233 (macrolet ((assert-type-error (form)
 234              `(assert (typep (nth-value 1 (ignore-errors ,form))
 235                              'type-error))))
 236   (dolist (type-stub '((simple-vector)
 237                        (vector *)
 238                        (vector (signed-byte 8))
 239                        (vector (unsigned-byte 16))
 240                        (vector (signed-byte 32))
 241                        (simple-bit-vector)))
 242     (declare (optimize safety))
 243     (format t "~&~S~%" type-stub)
 244     ;; MAKE-SEQUENCE
 245     (assert (= (length (make-sequence `(,@type-stub) 10)) 10))
 246     (assert (= (length (make-sequence `(,@type-stub 10) 10)) 10))
 247     (assert-type-error (make-sequence `(,@type-stub 10) 11))
 248     ;; COERCE
 249     (assert (= (length (coerce '(0 0 0) `(,@type-stub))) 3))
 250     (assert (= (length (coerce #(0 0 0) `(,@type-stub 3))) 3))
 251     (assert-type-error (coerce #*111 `(,@type-stub 4)))
 252     ;; CONCATENATE
 253     (assert (= (length (concatenate `(,@type-stub) #(0 0 0) #*111)) 6))
 254     (assert (equalp (concatenate `(,@type-stub) #(0 0 0) #*111)
 255                    (coerce #(0 0 0 1 1 1) `(,@type-stub))))
 256     (assert (= (length (concatenate `(,@type-stub 6) #(0 0 0) #*111)) 6))
 257     (assert (equalp (concatenate `(,@type-stub 6) #(0 0 0) #*111)
 258                    (coerce #(0 0 0 1 1 1) `(,@type-stub 6))))
 259     (assert-type-error (concatenate `(,@type-stub 5) #(0 0 0) #*111))
 260     ;; MERGE
 261     (macrolet ((test (type)
 262                  `(merge ,type (copy-seq #(0 1 0)) (copy-seq #*111) #'>)))
 263       (assert (= (length (test `(,@type-stub))) 6))
 264       (assert (equalp (test `(,@type-stub))
 265                       (coerce #(1 1 1 0 1 0) `(,@type-stub))))
 266       (assert (= (length (test `(,@type-stub 6))) 6))
 267       (assert (equalp (test `(,@type-stub 6))
 268                       (coerce #(1 1 1 0 1 0) `(,@type-stub 6))))
 269       (assert-type-error (test `(,@type-stub 4))))
 270     ;; MAP
 271     (assert (= (length (map `(,@type-stub) #'logxor #(0 0 1 1) '(0 1 0 1))) 4))
 272     (assert (equalp (map `(,@type-stub) #'logxor #(0 0 1 1) '(0 1 0 1))
 273                    (coerce #(0 1 1 0) `(,@type-stub))))
 274     (assert (= (length (map `(,@type-stub 4) #'logxor #(0 0 1 1) '(0 1 0 1)))
 275                4))
 276     (assert (equalp (map `(,@type-stub 4) #'logxor #(0 0 1 1) '(0 1 0 1))
 277                    (coerce #(0 1 1 0) `(,@type-stub 4))))
 278     (assert-type-error (map `(,@type-stub 5) #'logxor #(0 0 1 1) '(0 1 0 1))))
 279   ;; some more CONCATENATE tests for strings
 280   (locally
 281       (declare (optimize safety))
 282     (assert (string= (concatenate 'string "foo" " " "bar") "foo bar"))
 283     (assert (string= (concatenate '(string 7) "foo" " " "bar") "foo bar"))
 284     (assert-type-error (concatenate '(string 6) "foo" " " "bar"))
 285     (assert (string= (concatenate '(string 6) "foo" #(#\b #\a #\r)) "foobar"))
 286     (assert-type-error (concatenate '(string 7) "foo" #(#\b #\a #\r))))
 287   ;; Non-VECTOR ARRAY types aren't allowed as vector type specifiers.
 288   (locally
 289     (declare (optimize safety))
 290     (assert-type-error (concatenate 'simple-array "foo" "bar"))
 291     (assert-type-error (map 'simple-array #'identity '(1 2 3)))
 292     (assert (equalp #(11 13)
 293                     (map '(simple-array fixnum (*)) #'+ '(1 2 3) '(10 11))))
 294     (assert-type-error (coerce '(1 2 3) 'simple-array))
 295     (assert-type-error (merge 'simple-array (list 1 3) (list 2 4) '<))
 296     (assert (equalp #(3 2 1) (coerce '(3 2 1) '(vector fixnum))))
 297     (assert-type-error (map 'array #'identity '(1 2 3)))
 298     (assert-type-error (map '(array fixnum) #'identity '(1 2 3)))
 299     (assert (equalp #(1 2 3) (coerce '(1 2 3) '(vector fixnum))))
 300     ;; but COERCE has an exemption clause:
 301     (assert (string= "foo" (coerce "foo" 'simple-array)))
 302     ;; ... though not in all cases.
 303     (assert-type-error (coerce '(#\f #\o #\o) 'simple-array))))
 304
 305 ;;; As pointed out by Raymond Toy on #lisp IRC, MERGE had some issues
 306 ;;; with user-defined types until sbcl-0.7.8.11
 307 (deftype list-typeoid () 'list)
 308 (assert (equal '(1 2 3 4) (merge 'list-typeoid (list 1 3) (list 2 4) '<)))
 309 ;;; and also with types that weren't precicely LIST
 310 (assert (equal '(1 2 3 4) (merge 'cons (list 1 3) (list 2 4) '<)))
 311
 312 ;;; but wait, there's more! The NULL and CONS types also have implicit
 313 ;;; length requirements:
 314 (macrolet ((assert-type-error (form)
 315              `(assert (typep (nth-value 1 (ignore-errors ,form))
 316                              'type-error))))
 317   (locally
 318       (declare (optimize safety))
 319     ;; MAKE-SEQUENCE
 320     (assert-type-error (make-sequence 'cons 0))
 321     (assert-type-error (make-sequence 'null 1))
 322     (assert-type-error (make-sequence '(cons t null) 0))
 323     (assert-type-error (make-sequence '(cons t null) 2))
 324     ;; KLUDGE: I'm not certain that this test actually tests for what
 325     ;; it should test, in that the type deriver and optimizers might
 326     ;; be too smart for the good of an exhaustive test system.
 327     ;; However, it makes me feel good.  -- CSR, 2002-10-18
 328     (assert (null (make-sequence 'null 0)))
 329     (assert (= (length (make-sequence 'cons 3)) 3))
 330     (assert (= (length (make-sequence '(cons t null) 1)) 1))
 331     ;; and NIL is not a valid type for MAKE-SEQUENCE
 332     (assert-type-error (make-sequence 'nil 0))
 333     ;; COERCE
 334     (assert-type-error (coerce #(1) 'null))
 335     (assert-type-error (coerce #() 'cons))
 336     (assert-type-error (coerce #() '(cons t null)))
 337     (assert-type-error (coerce #(1 2) '(cons t null)))
 338     (assert (null (coerce #() 'null)))
 339     (assert (= (length (coerce #(1) 'cons)) 1))
 340     (assert (= (length (coerce #(1) '(cons t null))) 1))
 341     (assert-type-error (coerce #() 'nil))
 342     ;; MERGE
 343     (assert-type-error (merge 'null (list 1 3) (list 2 4) '<))
 344     (assert-type-error (merge 'cons () () '<))
 345     (assert (null (merge 'null () () '<)))
 346     (assert (= (length (merge 'cons (list 1 3) (list 2 4) '<)) 4))
 347     (assert (= (length (merge '(cons t (cons t (cons t (cons t null))))
 348                               (list 1 3) (list 2 4)
 349                               '<))
 350                4))
 351     (assert-type-error (merge 'nil () () '<))
 352     ;; CONCATENATE
 353     (assert-type-error (concatenate 'null '(1) "2"))
 354     (assert-type-error (concatenate 'cons #() ()))
 355     (assert-type-error (concatenate '(cons t null) #(1 2 3) #(4 5 6)))
 356     (assert (null (concatenate 'null () #())))
 357     (assert (= (length (concatenate 'cons #() '(1) "2 3")) 4))
 358     (assert (= (length (concatenate '(cons t cons) '(1) "34")) 3))
 359     (assert-type-error (concatenate 'nil '(3)))
 360     ;; FIXME: tests for MAP to come when some brave soul implements
 361     ;; the analogous type checking for MAP/%MAP.
 362     ))
 363 \f
 364 ;;; ELT should signal an error of type TYPE-ERROR if its index
 365 ;;; argument isn't a valid sequence index for sequence:
 366 (defun test-elt-signal (x)
 367   (elt x 3))
 368 (assert (raises-error? (test-elt-signal "foo") type-error))
 369 (assert (eql (test-elt-signal "foob") #\b))
 370 (locally
 371   (declare (optimize (safety 3)))
 372   (assert (raises-error? (elt (list 1 2 3) 3) type-error)))
 373 \f
 374 ;;; confusion in the refactoring led to this signalling an unbound
 375 ;;; variable, not a type error.
 376 (defun svrefalike (x)
 377   (svref x 0))
 378 (assert (raises-error? (svrefalike #*0) type-error))
 379 \f
 380 ;;; checks for uniform bounding index handling.
 381 ;;;
 382 ;;; This used to be SAFETY 3 only, but bypassing these checks with
 383 ;;; above-zero speed when SPEED > SAFETY is not The SBCL Way.
 384 ;;;
 385 ;;; KLUDGE: not all in one big form because that causes SBCL to spend
 386 ;;; an absolute age trying to compile it.
 387 (defmacro sequence-bounding-indices-test (&body body)
 388   `(progn
 389      (locally
 390     ;; See Issues 332 [and 333(!)] in the CLHS
 391     (declare (optimize (speed 3) (safety 1)))
 392     (let ((string (make-array 10
 393                               :fill-pointer 5
 394                               :initial-element #\a
 395                               :element-type 'base-char)))
 396         ,(car body)
 397         (format t "... BASE-CHAR")
 398         (finish-output)
 399         (flet ((reset ()
 400                  (setf (fill-pointer string) 10)
 401                  (fill string #\a)
 402                  (setf (fill-pointer string) 5)))
 403           (declare (ignorable #'reset))
 404           ,@(cdr body))))
 405     (locally
 406       ;; See Issues 332 [and 333(!)] in the CLHS
 407       (declare (optimize (speed 3) (safety 1)))
 408       (let ((string (make-array 10
 409                                 :fill-pointer 5
 410                                 :initial-element #\a
 411                                 :element-type 'character)))
 412         ,(car body)
 413         (format t "... CHARACTER")
 414         (finish-output)
 415       (flet ((reset ()
 416                (setf (fill-pointer string) 10)
 417                (fill string #\a)
 418                (setf (fill-pointer string) 5)))
 419         (declare (ignorable #'reset))
 420           ,@(cdr body))))))
 421
 422 (declaim (notinline opaque-identity))
 423 (defun opaque-identity (x) x)
 424 ;;; Accessor SUBSEQ
 425 (sequence-bounding-indices-test
 426  (format t "~&/Accessor SUBSEQ")
 427  (assert (string= (subseq string 0 5) "aaaaa"))
 428  (assert (raises-error? (subseq string 0 6)))
 429  (assert (raises-error? (subseq string (opaque-identity -1) 5)))
 430  (assert (raises-error? (subseq string 4 2)))
 431  (assert (raises-error? (subseq string 6)))
 432  (assert (string= (setf (subseq string 0 5) "abcde") "abcde"))
 433  (assert (string= (subseq string 0 5) "abcde"))
 434  (reset)
 435  (assert (raises-error? (setf (subseq string 0 6) "abcdef")))
 436  (assert (raises-error? (setf (subseq string (opaque-identity -1) 5) "abcdef")))
 437  (assert (raises-error? (setf (subseq string 4 2) "")))
 438  (assert (raises-error? (setf (subseq string 6) "ghij"))))
 439
 440 ;;; Function COUNT, COUNT-IF, COUNT-IF-NOT
 441 (sequence-bounding-indices-test
 442  (format t "~&/Function COUNT, COUNT-IF, COUNT-IF-NOT")
 443  (assert (= (count #\a string :start 0 :end nil) 5))
 444  (assert (= (count #\a string :start 0 :end 5) 5))
 445  (assert (raises-error? (count #\a string :start 0 :end 6)))
 446  (assert (raises-error? (count #\a string :start (opaque-identity -1) :end 5)))
 447  (assert (raises-error? (count #\a string :start 4 :end 2)))
 448  (assert (raises-error? (count #\a string :start 6 :end 9)))
 449  (assert (= (count-if #'alpha-char-p string :start 0 :end nil) 5))
 450  (assert (= (count-if #'alpha-char-p string :start 0 :end 5) 5))
 451  (assert (raises-error?
 452           (count-if #'alpha-char-p string :start 0 :end 6)))
 453  (assert (raises-error?
 454           (count-if #'alpha-char-p string :start (opaque-identity -1) :end 5)))
 455  (assert (raises-error?
 456           (count-if #'alpha-char-p string :start 4 :end 2)))
 457  (assert (raises-error?
 458           (count-if #'alpha-char-p string :start 6 :end 9)))
 459  (assert (= (count-if-not #'alpha-char-p string :start 0 :end nil) 0))
 460  (assert (= (count-if-not #'alpha-char-p string :start 0 :end 5) 0))
 461  (assert (raises-error?
 462           (count-if-not #'alpha-char-p string :start 0 :end 6)))
 463  (assert (raises-error?
 464           (count-if-not #'alpha-char-p string :start (opaque-identity -1) :end 5)))
 465  (assert (raises-error?
 466           (count-if-not #'alpha-char-p string :start 4 :end 2)))
 467  (assert (raises-error?
 468           (count-if-not #'alpha-char-p string :start 6 :end 9))))
 469
 470 ;;; Function FILL
 471 (sequence-bounding-indices-test
 472  (format t "~&/Function FILL")
 473  (assert (string= (fill string #\b :start 0 :end 5) "bbbbb"))
 474  (assert (string= (fill string #\c :start 0 :end nil) "ccccc"))
 475  (assert (raises-error? (fill string #\d :start 0 :end 6)))
 476  (assert (raises-error? (fill string #\d :start (opaque-identity -1) :end 5)))
 477  (assert (raises-error? (fill string #\d :start 4 :end 2)))
 478  (assert (raises-error? (fill string #\d :start 6 :end 9))))
 479
 480 ;;; Function FIND, FIND-IF, FIND-IF-NOT
 481 (sequence-bounding-indices-test
 482  (format t "~&/Function FIND, FIND-IF, FIND-IF-NOT")
 483  (assert (char= (find #\a string :start 0 :end nil) #\a))
 484  (assert (char= (find #\a string :start 0 :end 5) #\a))
 485  (assert (raises-error? (find #\a string :start 0 :end 6)))
 486  (assert (raises-error? (find #\a string :start (opaque-identity -1) :end 5)))
 487  (assert (raises-error? (find #\a string :start 4 :end 2)))
 488  (assert (raises-error? (find #\a string :start 6 :end 9)))
 489  (assert (char= (find-if #'alpha-char-p string :start 0 :end nil) #\a))
 490  (assert (char= (find-if #'alpha-char-p string :start 0 :end 5) #\a))
 491  (assert (raises-error?
 492           (find-if #'alpha-char-p string :start 0 :end 6)))
 493  (assert (raises-error?
 494           (find-if #'alpha-char-p string :start (opaque-identity -1) :end 5)))
 495  (assert (raises-error?
 496           (find-if #'alpha-char-p string :start 4 :end 2)))
 497  (assert (raises-error?
 498           (find-if #'alpha-char-p string :start 6 :end 9)))
 499  (assert (eq (find-if-not #'alpha-char-p string :start 0 :end nil) nil))
 500  (assert (eq (find-if-not #'alpha-char-p string :start 0 :end 5) nil))
 501  (assert (raises-error?
 502           (find-if-not #'alpha-char-p string :start 0 :end 6)))
 503  (assert (raises-error?
 504           (find-if-not #'alpha-char-p string :start (opaque-identity -1) :end 5)))
 505  (assert (raises-error?
 506           (find-if-not #'alpha-char-p string :start 4 :end 2)))
 507  (assert (raises-error?
 508           (find-if-not #'alpha-char-p string :start 6 :end 9))))
 509
 510 ;;; Function MISMATCH
 511 (sequence-bounding-indices-test
 512  (format t "~&/Function MISMATCH")
 513  (assert (null (mismatch string "aaaaa" :start1 0 :end1 nil)))
 514  (assert (= (mismatch "aaab" string :start2 0 :end2 4) 3))
 515  (assert (raises-error? (mismatch "aaaaaa" string :start2 0 :end2 6)))
 516  (assert (raises-error? (mismatch string "aaaaaa" :start1 (opaque-identity -1) :end1 5)))
 517  (assert (raises-error? (mismatch string "" :start1 4 :end1 2)))
 518  (assert (raises-error? (mismatch "aaaa" string :start2 6 :end2 9))))
 519
 520 ;;; Function PARSE-INTEGER
 521 (sequence-bounding-indices-test
 522  (format t "~&/Function PARSE-INTEGER")
 523  (setf (fill-pointer string) 10)
 524  (setf (subseq string 0 10) "1234567890")
 525  (setf (fill-pointer string) 5)
 526  (assert (= (parse-integer string :start 0 :end 5) 12345))
 527  (assert (= (parse-integer string :start 0 :end nil) 12345))
 528  (assert (raises-error? (parse-integer string :start 0 :end 6)))
 529  (assert (raises-error? (parse-integer string :start (opaque-identity -1) :end 5)))
 530  (assert (raises-error? (parse-integer string :start 4 :end 2)))
 531  (assert (raises-error? (parse-integer string :start 6 :end 9))))
 532
 533 ;;; Function PARSE-NAMESTRING
 534 (sequence-bounding-indices-test
 535  (format t "~&/Function PARSE-NAMESTRING")
 536  (setf (fill-pointer string) 10)
 537  (setf (subseq string 0 10)
 538        #-win32 "/dev/ /tmp"
 539        #+win32 "C:/   NUL")
 540  (setf (fill-pointer string) 5)
 541  (assert (truename (parse-namestring string nil *default-pathname-defaults*
 542                                      :start 0 :end 5)))
 543  (assert (truename (parse-namestring string nil *default-pathname-defaults*
 544                                      :start 0 :end nil)))
 545  (assert (raises-error? (parse-namestring string nil
 546                                           *default-pathname-defaults*
 547                                           :start 0 :end 6)))
 548  (assert (raises-error? (parse-namestring string nil
 549                                           *default-pathname-defaults*
 550                                           :start (opaque-identity -1) :end 5)))
 551  (assert (raises-error? (parse-namestring string nil
 552                                           *default-pathname-defaults*
 553                                           :start 4 :end 2)))
 554  (assert (raises-error? (parse-namestring string nil
 555                                           *default-pathname-defaults*
 556                                           :start 6 :end 9))))
 557
 558 ;;; Function POSITION, POSITION-IF, POSITION-IF-NOT
 559 (sequence-bounding-indices-test
 560  (format t "~&/Function POSITION, POSITION-IF, POSITION-IF-NOT")
 561
 562  (assert (= (position #\a string :start 0 :end nil) 0))
 563  (assert (= (position #\a string :start 0 :end 5) 0))
 564  (assert (raises-error? (position #\a string :start 0 :end 6)))
 565  (assert (raises-error? (position #\a string :start (opaque-identity -1) :end 5)))
 566  (assert (raises-error? (position #\a string :start 4 :end 2)))
 567  (assert (raises-error? (position #\a string :start 6 :end 9)))
 568  (assert (= (position-if #'alpha-char-p string :start 0 :end nil) 0))
 569  (assert (= (position-if #'alpha-char-p string :start 0 :end 5) 0))
 570  (assert (raises-error?
 571           (position-if #'alpha-char-p string :start 0 :end 6)))
 572  (assert (raises-error?
 573           (position-if #'alpha-char-p string :start (opaque-identity -1) :end 5)))
 574  (assert (raises-error?
 575           (position-if #'alpha-char-p string :start 4 :end 2)))
 576  (assert (raises-error?
 577           (position-if #'alpha-char-p string :start 6 :end 9)))
 578  (assert (eq (position-if-not #'alpha-char-p string :start 0 :end nil) nil))
 579  (assert (eq (position-if-not #'alpha-char-p string :start 0 :end 5) nil))
 580  (assert (raises-error?
 581           (position-if-not #'alpha-char-p string :start 0 :end 6)))
 582  (assert (raises-error?
 583           (position-if-not #'alpha-char-p string :start (opaque-identity -1) :end 5)))
 584  (assert (raises-error?
 585           (position-if-not #'alpha-char-p string :start 4 :end 2)))
 586  (assert (raises-error?
 587           (position-if-not #'alpha-char-p string :start 6 :end 9))))
 588
 589 ;;; Function READ-FROM-STRING
 590 (sequence-bounding-indices-test
 591  (format t "~&/Function READ-FROM-STRING")
 592  (setf (subseq string 0 5) "(a b)")
 593  (assert (equal (read-from-string string nil nil :start 0 :end 5) '(a b)))
 594  (assert (equal (read-from-string string nil nil :start 0 :end nil) '(a b)))
 595  (assert (raises-error? (read-from-string string nil nil :start 0 :end 6)))
 596  (assert (raises-error? (read-from-string string nil nil :start (opaque-identity -1) :end 5)))
 597  (assert (raises-error? (read-from-string string nil nil :start 4 :end 2)))
 598  (assert (raises-error? (read-from-string string nil nil :start 6 :end 9))))
 599
 600 ;;; Function REDUCE
 601 (sequence-bounding-indices-test
 602  (format t "~&/Function REDUCE")
 603  (setf (subseq string 0 5) "abcde")
 604  (assert (equal (reduce #'list* string :from-end t :start 0 :end nil)
 605                 '(#\a #\b #\c #\d . #\e)))
 606  (assert (equal (reduce #'list* string :from-end t :start 0 :end 5)
 607                 '(#\a #\b #\c #\d . #\e)))
 608  (assert (raises-error? (reduce #'list* string :start 0 :end 6)))
 609  (assert (raises-error? (reduce #'list* string :start (opaque-identity -1) :end 5)))
 610  (assert (raises-error? (reduce #'list* string :start 4 :end 2)))
 611  (assert (raises-error? (reduce #'list* string :start 6 :end 9))))
 612
 613 ;;; Function REMOVE, REMOVE-IF, REMOVE-IF-NOT, DELETE, DELETE-IF,
 614 ;;; DELETE-IF-NOT
 615 (sequence-bounding-indices-test
 616  (format t "~&/Function REMOVE, REMOVE-IF, REMOVE-IF-NOT, ...")
 617  (assert (equal (remove #\a string :start 0 :end nil) ""))
 618  (assert (equal (remove #\a string :start 0 :end 5) ""))
 619  (assert (raises-error? (remove #\a string :start 0 :end 6)))
 620  (assert (raises-error? (remove #\a string :start (opaque-identity -1) :end 5)))
 621  (assert (raises-error? (remove #\a string :start 4 :end 2)))
 622  (assert (raises-error? (remove #\a string :start 6 :end 9)))
 623  (assert (equal (remove-if #'alpha-char-p string :start 0 :end nil) ""))
 624  (assert (equal (remove-if #'alpha-char-p string :start 0 :end 5) ""))
 625  (assert (raises-error?
 626           (remove-if #'alpha-char-p string :start 0 :end 6)))
 627  (assert (raises-error?
 628           (remove-if #'alpha-char-p string :start (opaque-identity -1) :end 5)))
 629  (assert (raises-error?
 630           (remove-if #'alpha-char-p string :start 4 :end 2)))
 631  (assert (raises-error?
 632           (remove-if #'alpha-char-p string :start 6 :end 9)))
 633  (assert (equal (remove-if-not #'alpha-char-p string :start 0 :end nil)
 634                 "aaaaa"))
 635  (assert (equal (remove-if-not #'alpha-char-p string :start 0 :end 5)
 636                 "aaaaa"))
 637  (assert (raises-error?
 638           (remove-if-not #'alpha-char-p string :start 0 :end 6)))
 639  (assert (raises-error?
 640           (remove-if-not #'alpha-char-p string :start (opaque-identity -1) :end 5)))
 641  (assert (raises-error?
 642           (remove-if-not #'alpha-char-p string :start 4 :end 2)))
 643  (assert (raises-error?
 644           (remove-if-not #'alpha-char-p string :start 6 :end 9))))
 645 (sequence-bounding-indices-test
 646  (format t "~&/... DELETE, DELETE-IF, DELETE-IF-NOT")
 647  (assert (equal (delete #\a string :start 0 :end nil) ""))
 648  (reset)
 649  (assert (equal (delete #\a string :start 0 :end 5) ""))
 650  (reset)
 651  (assert (raises-error? (delete #\a string :start 0 :end 6)))
 652  (reset)
 653  (assert (raises-error? (delete #\a string :start (opaque-identity -1) :end 5)))
 654  (reset)
 655  (assert (raises-error? (delete #\a string :start 4 :end 2)))
 656  (reset)
 657  (assert (raises-error? (delete #\a string :start 6 :end 9)))
 658  (reset)
 659  (assert (equal (delete-if #'alpha-char-p string :start 0 :end nil) ""))
 660  (reset)
 661  (assert (equal (delete-if #'alpha-char-p string :start 0 :end 5) ""))
 662  (reset)
 663  (assert (raises-error?
 664           (delete-if #'alpha-char-p string :start 0 :end 6)))
 665  (reset)
 666  (assert (raises-error?
 667           (delete-if #'alpha-char-p string :start (opaque-identity -1) :end 5)))
 668  (reset)
 669  (assert (raises-error?
 670           (delete-if #'alpha-char-p string :start 4 :end 2)))
 671  (reset)
 672  (assert (raises-error?
 673           (delete-if #'alpha-char-p string :start 6 :end 9)))
 674  (reset)
 675  (assert (equal (delete-if-not #'alpha-char-p string :start 0 :end nil)
 676                 "aaaaa"))
 677  (reset)
 678  (assert (equal (delete-if-not #'alpha-char-p string :start 0 :end 5)
 679                 "aaaaa"))
 680  (reset)
 681  (assert (raises-error?
 682           (delete-if-not #'alpha-char-p string :start 0 :end 6)))
 683  (reset)
 684  (assert (raises-error?
 685           (delete-if-not #'alpha-char-p string :start (opaque-identity -1) :end 5)))
 686  (reset)
 687  (assert (raises-error?
 688           (delete-if-not #'alpha-char-p string :start 4 :end 2)))
 689  (reset)
 690  (assert (raises-error?
 691           (delete-if-not #'alpha-char-p string :start 6 :end 9))))
 692
 693 ;;; Function REMOVE-DUPLICATES, DELETE-DUPLICATES
 694 (sequence-bounding-indices-test
 695  (format t "~&/Function REMOVE-DUPLICATES, DELETE-DUPLICATES")
 696  (assert (string= (remove-duplicates string :start 0 :end 5) "a"))
 697  (assert (string= (remove-duplicates string :start 0 :end nil) "a"))
 698  (assert (raises-error? (remove-duplicates string :start 0 :end 6)))
 699  (assert (raises-error? (remove-duplicates string :start (opaque-identity -1) :end 5)))
 700  (assert (raises-error? (remove-duplicates string :start 4 :end 2)))
 701  (assert (raises-error? (remove-duplicates string :start 6 :end 9)))
 702  (assert (string= (delete-duplicates string :start 0 :end 5) "a"))
 703  (reset)
 704  (assert (string= (delete-duplicates string :start 0 :end nil) "a"))
 705  (reset)
 706  (assert (raises-error? (delete-duplicates string :start 0 :end 6)))
 707  (reset)
 708  (assert (raises-error? (delete-duplicates string :start (opaque-identity -1) :end 5)))
 709  (reset)
 710  (assert (raises-error? (delete-duplicates string :start 4 :end 2)))
 711  (reset)
 712  (assert (raises-error? (delete-duplicates string :start 6 :end 9))))
 713
 714 ;;; Function REPLACE
 715 (sequence-bounding-indices-test
 716  (format t "~&/Function REPLACE")
 717  (assert (string= (replace string "bbbbb" :start1 0 :end1 5) "bbbbb"))
 718  (assert (string= (replace (copy-seq "ccccc")
 719                            string
 720                            :start2 0 :end2 nil) "bbbbb"))
 721  (assert (raises-error? (replace string "ccccc" :start1 0 :end1 6)))
 722  (assert (raises-error? (replace string "ccccc" :start2 (opaque-identity -1) :end2 5)))
 723  (assert (raises-error? (replace string "ccccc" :start1 4 :end1 2)))
 724  (assert (raises-error? (replace string "ccccc" :start1 6 :end1 9))))
 725
 726 ;;; Function SEARCH
 727 (sequence-bounding-indices-test
 728  (format t "~&/Function SEARCH")
 729  (assert (= (search "aa" string :start2 0 :end2 5) 0))
 730  (assert (null (search string "aa" :start1 0 :end2 nil)))
 731  (assert (raises-error? (search "aa" string :start2 0 :end2 6)))
 732  (assert (raises-error? (search "aa" string :start2 (opaque-identity -1) :end2 5)))
 733  (assert (raises-error? (search "aa" string :start2 4 :end2 2)))
 734  (assert (raises-error? (search "aa" string :start2 6 :end2 9))))
 735
 736 ;;; Function STRING-UPCASE, STRING-DOWNCASE, STRING-CAPITALIZE,
 737 ;;; NSTRING-UPCASE, NSTRING-DOWNCASE, NSTRING-CAPITALIZE
 738 (defmacro string-case-frob (fn)
 739   `(progn
 740     (assert (raises-error? (,fn string :start 0 :end 6)))
 741     (assert (raises-error? (,fn string :start (opaque-identity -1) :end 5)))
 742     (assert (raises-error? (,fn string :start 4 :end 2)))
 743     (assert (raises-error? (,fn string :start 6 :end 9)))))
 744
 745 (sequence-bounding-indices-test
 746  (format t "~&/Function STRING-UPCASE, STRING-DOWNCASE, STRING-CAPITALIZE, ...")
 747  (string-case-frob string-upcase)
 748  (string-case-frob string-downcase)
 749  (string-case-frob string-capitalize)
 750  (format t "~&/... NSTRING-UPCASE, NSTRING-DOWNCASE, NSTRING-CAPITALIZE")
 751  (string-case-frob nstring-upcase)
 752  (string-case-frob nstring-downcase)
 753  (string-case-frob nstring-capitalize))
 754
 755 ;;; Function STRING=, STRING/=, STRING<, STRING>, STRING<=, STRING>=,
 756 ;;; STRING-EQUAL, STRING-NOT-EQUAL, STRING-LESSP, STRING-GREATERP,
 757 ;;; STRING-NOT-GREATERP, STRING-NOT-LESSP
 758 (defmacro string-predicate-frob (fn)
 759   `(progn
 760     (,fn string "abcde" :start1 0 :end1 5)
 761     (,fn "fghij" string :start2 0 :end2 nil)
 762     (assert (raises-error? (,fn string "klmno"
 763                                 :start1 0 :end1 6)))
 764     (assert (raises-error? (,fn "pqrst" string
 765                                 :start2 (opaque-identity -1) :end2 5)))
 766     (assert (raises-error? (,fn "uvwxy" string
 767                                 :start1 4 :end1 2)))
 768     (assert (raises-error? (,fn string "z" :start2 6 :end2 9)))))
 769 (sequence-bounding-indices-test
 770  (format t "~&/Function STRING=, STRING/=, STRING<, STRING>, STRING<=, STRING>=, ...")
 771  (string-predicate-frob string=)
 772  (string-predicate-frob string/=)
 773  (string-predicate-frob string<)
 774  (string-predicate-frob string>)
 775  (string-predicate-frob string<=)
 776  (string-predicate-frob string>=))
 777 (sequence-bounding-indices-test
 778  (format t "~&/... STRING-EQUAL, STRING-NOT-EQUAL, STRING-LESSP, ...")
 779  (string-predicate-frob string-equal)
 780  (string-predicate-frob string-not-equal)
 781  (string-predicate-frob string-lessp))
 782 (sequence-bounding-indices-test
 783  (format t "~&/... STRING-GREATERP, STRING-NOT-GREATERP, STRING-NOT-LESSP")
 784  (string-predicate-frob string-greaterp)
 785  (string-predicate-frob string-not-greaterp)
 786  (string-predicate-frob string-not-lessp))
 787
 788 ;;; Function SUBSTITUTE, SUBSTITUTE-IF, SUBSTITUTE-IF-NOT,
 789 ;;; NSUBSTITUTE, NSUBSTITUTE-IF, NSUBSTITUTE-IF-NOT
 790 (sequence-bounding-indices-test
 791  (format t "~&/Function SUBSTITUTE, SUBSTITUTE-IF, SUBSTITUTE-IF-NOT, ...")
 792  (assert (string= (substitute #\b #\a string :start 0 :end 5) "bbbbb"))
 793  (assert (string= (substitute #\c #\a string :start 0 :end nil)
 794                   "ccccc"))
 795  (assert (raises-error? (substitute #\b #\a string :start 0 :end 6)))
 796  (assert (raises-error? (substitute #\b #\a string :start (opaque-identity -1) :end 5)))
 797  (assert (raises-error? (substitute #\b #\a string :start 4 :end 2)))
 798  (assert (raises-error? (substitute #\b #\a string :start 6 :end 9)))
 799  (assert (string= (substitute-if #\b #'alpha-char-p string
 800                                  :start 0 :end 5)
 801                   "bbbbb"))
 802  (assert (string= (substitute-if #\c #'alpha-char-p string
 803                                  :start 0 :end nil)
 804                   "ccccc"))
 805  (assert (raises-error? (substitute-if #\b #'alpha-char-p string
 806                                        :start 0 :end 6)))
 807  (assert (raises-error? (substitute-if #\b #'alpha-char-p string
 808                                        :start (opaque-identity -1) :end 5)))
 809  (assert (raises-error? (substitute-if #\b #'alpha-char-p string
 810                                        :start 4 :end 2)))
 811  (assert (raises-error? (substitute-if #\b #'alpha-char-p string
 812                                        :start 6 :end 9)))
 813  (assert (string= (substitute-if-not #\b #'alpha-char-p string
 814                                      :start 0 :end 5)
 815                   "aaaaa"))
 816  (assert (string= (substitute-if-not #\c #'alpha-char-p string
 817                                      :start 0 :end nil)
 818                   "aaaaa"))
 819  (assert (raises-error? (substitute-if-not #\b #'alpha-char-p string
 820                                            :start 0 :end 6)))
 821  (assert (raises-error? (substitute-if-not #\b #'alpha-char-p string
 822                                            :start (opaque-identity -1) :end 5)))
 823  (assert (raises-error? (substitute-if-not #\b #'alpha-char-p string
 824                                            :start 4 :end 2)))
 825  (assert (raises-error? (substitute-if-not #\b #'alpha-char-p string
 826                                            :start 6 :end 9))))
 827 (sequence-bounding-indices-test
 828  (format t "~&/... NSUBSTITUTE, NSUBSTITUTE-IF, NSUBSTITUTE-IF-NOT")
 829  (assert (string= (nsubstitute #\b #\a string :start 0 :end 5) "bbbbb"))
 830  (reset)
 831  (assert (string= (nsubstitute #\c #\a string :start 0 :end nil)
 832                   "ccccc"))
 833  (reset)
 834  (assert (raises-error? (nsubstitute #\b #\a string :start 0 :end 6)))
 835  (reset)
 836  (assert (raises-error? (nsubstitute #\b #\a string :start (opaque-identity -1) :end 5)))
 837  (reset)
 838  (assert (raises-error? (nsubstitute #\b #\a string :start 4 :end 2)))
 839  (reset)
 840  (assert (raises-error? (nsubstitute #\b #\a string :start 6 :end 9)))
 841  (reset)
 842  (assert (string= (nsubstitute-if #\b #'alpha-char-p string
 843                                   :start 0 :end 5)
 844                   "bbbbb"))
 845  (reset)
 846  (assert (string= (nsubstitute-if #\c #'alpha-char-p string
 847                                   :start 0 :end nil)
 848                   "ccccc"))
 849  (reset)
 850  (assert (raises-error? (nsubstitute-if #\b #'alpha-char-p string
 851                                         :start 0 :end 6)))
 852  (reset)
 853  (assert (raises-error? (nsubstitute-if #\b #'alpha-char-p string
 854                                         :start (opaque-identity -1) :end 5)))
 855  (reset)
 856  (assert (raises-error? (nsubstitute-if #\b #'alpha-char-p string
 857                                         :start 4 :end 2)))
 858  (reset)
 859  (assert (raises-error? (nsubstitute-if #\b #'alpha-char-p string
 860                                         :start 6 :end 9)))
 861  (reset)
 862  (assert (string= (nsubstitute-if-not #\b #'alpha-char-p string
 863                                       :start 0 :end 5)
 864                   "aaaaa"))
 865  (reset)
 866  (assert (string= (nsubstitute-if-not #\c #'alpha-char-p string
 867                                       :start 0 :end nil)
 868                   "aaaaa"))
 869  (reset)
 870  (assert (raises-error? (nsubstitute-if-not #\b #'alpha-char-p string
 871                                             :start 0 :end 6)))
 872  (reset)
 873  (assert (raises-error? (nsubstitute-if-not #\b #'alpha-char-p string
 874                                             :start (opaque-identity -1) :end 5)))
 875  (reset)
 876  (assert (raises-error? (nsubstitute-if-not #\b #'alpha-char-p string
 877                                             :start 4 :end 2)))
 878  (reset)
 879  (assert (raises-error? (nsubstitute-if-not #\b #'alpha-char-p string
 880                                             :start 6 :end 9))))
 881 ;;; Function WRITE-STRING, WRITE-LINE
 882 (sequence-bounding-indices-test
 883  (format t "~&/Function WRITE-STRING, WRITE-LINE")
 884  (write-string string *standard-output* :start 0 :end 5)
 885  (write-string string *standard-output* :start 0 :end nil)
 886  (assert (raises-error? (write-string string *standard-output*
 887                                       :start 0 :end 6)))
 888  (assert (raises-error? (write-string string *standard-output*
 889                                       :start (opaque-identity -1) :end 5)))
 890  (assert (raises-error? (write-string string *standard-output*
 891                                       :start 4 :end 2)))
 892  (assert (raises-error? (write-string string *standard-output*
 893                                       :start 6 :end 9)))
 894  (write-line string *standard-output* :start 0 :end 5)
 895  (write-line string *standard-output* :start 0 :end nil)
 896  (assert (raises-error? (write-line string *standard-output*
 897                                       :start 0 :end 6)))
 898  (assert (raises-error? (write-line string *standard-output*
 899                                       :start (opaque-identity -1) :end 5)))
 900  (assert (raises-error? (write-line string *standard-output*
 901                                       :start 4 :end 2)))
 902  (assert (raises-error? (write-line string *standard-output*
 903                                       :start 6 :end 9))))
 904
 905 ;;; Macro WITH-INPUT-FROM-STRING
 906 (sequence-bounding-indices-test
 907  (format t "~&/Macro WITH-INPUT-FROM-STRING")
 908  (with-input-from-string (s string :start 0 :end 5)
 909    (assert (char= (read-char s) #\a)))
 910  (with-input-from-string (s string :start 0 :end nil)
 911    (assert (char= (read-char s) #\a)))
 912  (assert (raises-error?
 913           (with-input-from-string (s string :start 0 :end 6)
 914             (read-char s))))
 915  (assert (raises-error?
 916           (with-input-from-string (s string :start (opaque-identity -1) :end 5)
 917             (read-char s))))
 918  (assert (raises-error?
 919           (with-input-from-string (s string :start 4 :end 2)
 920             (read-char s))))
 921  (assert (raises-error?
 922           (with-input-from-string (s string :start 6 :end 9)
 923             (read-char s)))))
 924 \f
 925 ;;; testing bit-bashing according to _The Practice of Programming_
 926 (defun fill-bytes-for-testing (bitsize)
 927   "Return a list of 'bytes' of type (MOD BITSIZE)."
 928   (remove-duplicates (list 0
 929                            (1- (ash 1 (1- bitsize)))
 930                            (ash 1 (1- bitsize))
 931                            (1- (ash 1 bitsize)))))
 932
 933 (defun fill-with-known-value (value size &rest vectors)
 934   (dolist (vec vectors)
 935     (dotimes (i size)
 936       (setf (aref vec i) value))))
 937
 938 (defun collect-fill-amounts (n-power)
 939   (remove-duplicates
 940    (loop for i from 0 upto n-power
 941          collect (1- (expt 2 i))
 942          collect (expt 2 i)
 943          collect (1+ (expt 2 i)))))
 944
 945 (defun test-fill-bashing (bitsize padding-amount n-power)
 946   (let* ((size (+ (* padding-amount 2) (expt 2 n-power) (* padding-amount 2)))
 947          (standard (make-array size :element-type `(unsigned-byte ,bitsize)))
 948          (bashed (make-array size :element-type `(unsigned-byte ,bitsize)))
 949          (fill-amounts (collect-fill-amounts n-power))
 950          (bash-function (intern (format nil "UB~A-BASH-FILL" bitsize)
 951                                 (find-package "SB-KERNEL"))))
 952     (format t "~&/Function ~A..." bash-function)
 953     (loop for offset from padding-amount below (* 2 padding-amount) do
 954           (dolist (c (fill-bytes-for-testing bitsize))
 955             (dolist (n fill-amounts)
 956               (fill-with-known-value (mod (lognot c) (ash 1 bitsize)) n
 957                                      standard bashed)
 958               ;; fill vectors
 959               ;; a) the standard slow way
 960               (fill standard c :start offset :end (+ offset n))
 961               ;; b) the blazingly fast way
 962               (let ((value (loop for i from 0 by bitsize
 963                                  until (= i sb-vm:n-word-bits)
 964                                  sum (ash c i))))
 965                 (funcall bash-function value bashed offset n))
 966               ;; check for errors
 967               (when (mismatch standard bashed)
 968                 (format t "Test with offset ~A, fill ~A and length ~A failed.~%"
 969                         offset c n)
 970                 (format t "Mismatch: ~A ~A~%"
 971                         (subseq standard 0 (+ offset n 1))
 972                         (subseq bashed 0 (+ offset n 1)))
 973                 (return-from test-fill-bashing nil))))
 974           finally (return t))))
 975
 976 (defun test-copy-bashing (bitsize padding-amount n-power)
 977   (let* ((size (+ (* padding-amount 2) (expt 2 n-power) (* padding-amount 2)))
 978          (standard-dst (make-array size :element-type `(unsigned-byte ,bitsize)))
 979          (bashed-dst (make-array size :element-type `(unsigned-byte ,bitsize)))
 980          (source (make-array size :element-type `(unsigned-byte ,bitsize)))
 981          (fill-amounts (collect-fill-amounts n-power))
 982          (bash-function (intern (format nil "UB~A-BASH-COPY" bitsize)
 983                                 (find-package "SB-KERNEL"))))
 984     (format t "~&/Function ~A..." bash-function)
 985     (do ((source-offset padding-amount (1+ source-offset)))
 986         ((>= source-offset (* padding-amount 2))
 987          ;; success!
 988          t)
 989      (do ((target-offset padding-amount (1+ target-offset)))
 990          ((>= target-offset (* padding-amount 2)))
 991        (dolist (c (fill-bytes-for-testing bitsize))
 992          (dolist (n fill-amounts)
 993            (fill-with-known-value (mod (lognot c) (ash 1 bitsize)) size
 994                                   source standard-dst bashed-dst)
 995            ;; fill with test data
 996            (fill source c :start source-offset :end (+ source-offset n))
 997            ;; copy filled test data to test vectors
 998            ;; a) the slow way
 999            (replace standard-dst source
1000                     :start1 target-offset :end1 (+ target-offset n)
1001                     :start2 source-offset :end2 (+ source-offset n))
1002            ;; b) the blazingly fast way
1003            (funcall bash-function source source-offset
1004                     bashed-dst target-offset n)
1005            ;; check for errors
1006            (when (mismatch standard-dst bashed-dst)
1007              (format t "Test with target-offset ~A, source-offset ~A, fill ~A, and length ~A failed.~%"
1008                      target-offset source-offset c n)
1009              (format t "Mismatch:~% correct ~A~% actual  ~A~%"
1010                      standard-dst
1011                      bashed-dst)
1012              (return-from test-copy-bashing nil))))))))
1013
1014 ;; Too slow for the interpreter
1015 #+#.(cl:if (cl:eq sb-ext:*evaluator-mode* :compile) '(and) '(or))
1016 (loop for i = 1 then (* i 2) do
1017      ;; the bare '13' here is fairly arbitrary, except that it's been
1018      ;; reduced from '32', which made the tests take aeons; '8' provides
1019      ;; a good range of lengths over which to fill and copy, which
1020      ;; should tease out most errors in the code (if any exist).  (It
1021      ;; also makes this part of the test suite finish reasonably
1022      ;; quickly.)
1023      (assert (time (test-fill-bashing i 13 8)))
1024      (assert (time (test-copy-bashing i 13 8)))
1025      until (= i sb-vm:n-word-bits))
1026
1027 (defun test-inlined-bashing (bitsize)
1028   ;; We have to compile things separately for each bitsize so the
1029   ;; compiler will work out the array type and trigger the REPLACE
1030   ;; transform.
1031   (let ((lambda-form
1032          `(lambda ()
1033             (let* ((n-elements-per-word ,(truncate sb-vm:n-word-bits bitsize))
1034                    (size (* 3 n-elements-per-word))
1035                    (standard-dst (make-array size :element-type '(unsigned-byte ,bitsize)))
1036                    (bashed-dst (make-array size :element-type '(unsigned-byte ,bitsize)))
1037                    (source (make-array size :element-type '(unsigned-byte ,bitsize))))
1038               (declare (type (simple-array (unsigned-byte ,bitsize) (*))
1039                              source standard-dst bashed-dst))
1040               (do ((i 0 (1+ i))
1041                    (offset n-elements-per-word (1+ offset)))
1042                   ((>= offset (* 2 n-elements-per-word)) t)
1043                 (dolist (c (fill-bytes-for-testing ,bitsize))
1044                   (fill-with-known-value (mod (lognot c) (ash 1 ,bitsize)) size
1045                                          source standard-dst bashed-dst)
1046                   ;; fill with test-data
1047                   (fill source c :start offset :end (+ offset n-elements-per-word))
1048                   ;; copy filled data to test vectors
1049                   ;;
1050                   ;; a) the slow way (which is actually fast, since this
1051                   ;; should be transformed into UB*-BASH-COPY)
1052                   (replace standard-dst source
1053                            :start1 (- offset n-elements-per-word i)
1054                            :start2 (- offset n-elements-per-word i)
1055                            :end1 offset :end2 offset)
1056                   ;; b) the fast way--we fold the
1057                   ;; :START{1,2} arguments above ourselves
1058                   ;; to trigger the REPLACE transform
1059                   (replace bashed-dst source
1060                            :start1 0 :start2 0 :end1 offset :end2 offset)
1061                   ;; check for errors
1062                   (when (or (mismatch standard-dst bashed-dst)
1063                             ;; trigger COPY-SEQ transform
1064                             (mismatch (copy-seq standard-dst) bashed-dst)
1065                             ;; trigger SUBSEQ transform
1066                             (mismatch (subseq standard-dst (- offset n-elements-per-word i))
1067                                       bashed-dst))
1068                     (format t "Test with target-offset ~A, source-offset ~A, fill ~A, and length ~A failed.~%"
1069                             0 0 c offset)
1070                     (format t "Mismatch:~% correct ~A~% actual  ~A~%"
1071                             standard-dst
1072                             bashed-dst)
1073                     (return-from nil nil))))))))
1074     (funcall (compile nil lambda-form))))
1075
1076 #+#.(cl:if (cl:eq sb-ext:*evaluator-mode* :compile) '(and) '(or))
1077 (loop for i = 1 then (* i 2) do
1078       (assert (test-inlined-bashing i))
1079       until (= i sb-vm:n-word-bits))
1080 \f
1081 ;;; tests from the Sacla test suite via Eric Marsden, 2007-05-07
1082 (remove-duplicates (vector 1 2 2 1) :test-not (lambda (a b) (not (= a b))))
1083
1084 (delete-duplicates (vector #\a #\b #\c #\a)
1085                    :test-not (lambda (a b) (not (char-equal a b))))
1086
1087 ;;; FILL on lists
1088 (let ((l (list 1 2 3)))
1089   (fill l 0 :start 1 :end 2)
1090   (assert (equal l '(1 0 3)))
1091   (fill l 'x :start 2 :end 3)
1092   (assert (equal l '(1 0 x)))
1093   (fill l 'y :start 1)
1094   (assert (equal l '(1 y y)))
1095   (fill l 'z :end 2)
1096   (assert (equal l '(z z y)))
1097   (fill l 1)
1098   (assert (equal l '(1 1 1)))
1099   (assert (raises-error? (fill l 0 :start 4)))
1100   (assert (raises-error? (fill l 0 :end 4)))
1101   (assert (raises-error? (fill l 0 :start 2 :end 1))))
1102 \f
1103 ;;; success