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 (for-every-seq "string test"
 167   '((null (find 0 seq))
 168     (null (find #\D seq :key #'char-upcase))
 169     (find #\E seq :key #'char-upcase)
 170     (null (find #\e seq :key #'char-upcase))
 171     (eql 3 (position #\i seq))
 172     (eql 0 (position #\s seq :key #'char-downcase))
 173     (eql 1 (position #\s seq :key #'char-downcase :test #'char/=))
 174     (eql 9 (position #\s seq :from-end t :test #'char=))
 175     (eql 10 (position #\s seq :from-end t :test #'char/=))
 176     (eql 4 (position #\N seq :from-end t :key 'char-upcase :test #'char-equal))
 177     (eql 5 (position-if (lambda (c) (equal #\g c)) seq))
 178     (eql 5 (position-if (lambda (c) (equal #\g c)) seq :from-end t))
 179     (find-if #'characterp seq)
 180     (find-if (lambda (c) (typep c 'base-char)) seq :from-end t)
 181     (null (find-if 'upper-case-p seq))))
 182
 183 ;;; SUBSEQ
 184 (let ((avec (make-array 10
 185                         :fill-pointer 4
 186                         :initial-contents '(0 1 2 3 iv v vi vii iix ix))))
 187   ;; These first five always worked AFAIK.
 188   (assert (equalp (subseq avec 0 3) #(0 1 2)))
 189   (assert (equalp (subseq avec 3 3) #()))
 190   (assert (equalp (subseq avec 1 3) #(1 2)))
 191   (assert (equalp (subseq avec 1) #(1 2 3)))
 192   (assert (equalp (subseq avec 1 4) #(1 2 3)))
 193   ;; SBCL bug found ca. 2002-05-01 by OpenMCL's correct handling of
 194   ;; SUBSEQ, CSR's driving portable cross-compilation far enough to
 195   ;; reach the SUBSEQ calls in assem.lisp, and WHN's sleazy
 196   ;; translation of old CMU CL new-assem.lisp into sufficiently grotty
 197   ;; portable Lisp that it passed suitable illegal values to SUBSEQ to
 198   ;; exercise the bug:-|
 199   ;;
 200   ;; SUBSEQ should check its END value against logical LENGTH, not
 201   ;; physical ARRAY-DIMENSION 0.
 202   ;;
 203   ;; fixed in sbcl-0.7.4.22 by WHN
 204   (assert (null (ignore-errors (aref (subseq avec 1 5) 0)))))
 205
 206 ;;; FILL
 207 (defun test-fill-typecheck (x)
 208   (declare (optimize (safety 3) (space 2) (speed 1)))
 209   (fill (make-string 10) x))
 210
 211 (assert (string= (test-fill-typecheck #\@) "@@@@@@@@@@"))
 212 ;;; BUG 186, fixed in sbcl-0.7.5.5
 213 (assert (null (ignore-errors (test-fill-typecheck 4097))))
 214
 215 ;;; MAKE-SEQUENCE, COERCE, CONCATENATE, MERGE, MAP and requested
 216 ;;; result type (BUGs 46a, 46b, 66)
 217 (macrolet ((assert-type-error (form)
 218              `(assert (typep (nth-value 1 (ignore-errors ,form))
 219                              'type-error))))
 220   (dolist (type-stub '((simple-vector)
 221                        (vector *)
 222                        (vector (signed-byte 8))
 223                        (vector (unsigned-byte 16))
 224                        (vector (signed-byte 32))
 225                        (simple-bit-vector)))
 226     (declare (optimize safety))
 227     (format t "~&~S~%" type-stub)
 228     ;; MAKE-SEQUENCE
 229     (assert (= (length (make-sequence `(,@type-stub) 10)) 10))
 230     (assert (= (length (make-sequence `(,@type-stub 10) 10)) 10))
 231     (assert-type-error (make-sequence `(,@type-stub 10) 11))
 232     ;; COERCE
 233     (assert (= (length (coerce '(0 0 0) `(,@type-stub))) 3))
 234     (assert (= (length (coerce #(0 0 0) `(,@type-stub 3))) 3))
 235     (assert-type-error (coerce #*111 `(,@type-stub 4)))
 236     ;; CONCATENATE
 237     (assert (= (length (concatenate `(,@type-stub) #(0 0 0) #*111)) 6))
 238     (assert (equalp (concatenate `(,@type-stub) #(0 0 0) #*111)
 239                    (coerce #(0 0 0 1 1 1) `(,@type-stub))))
 240     (assert (= (length (concatenate `(,@type-stub 6) #(0 0 0) #*111)) 6))
 241     (assert (equalp (concatenate `(,@type-stub 6) #(0 0 0) #*111)
 242                    (coerce #(0 0 0 1 1 1) `(,@type-stub 6))))
 243     (assert-type-error (concatenate `(,@type-stub 5) #(0 0 0) #*111))
 244     ;; MERGE
 245     (macrolet ((test (type)
 246                  `(merge ,type (copy-seq #(0 1 0)) (copy-seq #*111) #'>)))
 247       (assert (= (length (test `(,@type-stub))) 6))
 248       (assert (equalp (test `(,@type-stub))
 249                       (coerce #(1 1 1 0 1 0) `(,@type-stub))))
 250       (assert (= (length (test `(,@type-stub 6))) 6))
 251       (assert (equalp (test `(,@type-stub 6))
 252                       (coerce #(1 1 1 0 1 0) `(,@type-stub 6))))
 253       (assert-type-error (test `(,@type-stub 4))))
 254     ;; MAP
 255     (assert (= (length (map `(,@type-stub) #'logxor #(0 0 1 1) '(0 1 0 1))) 4))
 256     (assert (equalp (map `(,@type-stub) #'logxor #(0 0 1 1) '(0 1 0 1))
 257                    (coerce #(0 1 1 0) `(,@type-stub))))
 258     (assert (= (length (map `(,@type-stub 4) #'logxor #(0 0 1 1) '(0 1 0 1)))
 259                4))
 260     (assert (equalp (map `(,@type-stub 4) #'logxor #(0 0 1 1) '(0 1 0 1))
 261                    (coerce #(0 1 1 0) `(,@type-stub 4))))
 262     (assert-type-error (map `(,@type-stub 5) #'logxor #(0 0 1 1) '(0 1 0 1))))
 263   ;; some more CONCATENATE tests for strings
 264   (locally
 265       (declare (optimize safety))
 266     (assert (string= (concatenate 'string "foo" " " "bar") "foo bar"))
 267     (assert (string= (concatenate '(string 7) "foo" " " "bar") "foo bar"))
 268     (assert-type-error (concatenate '(string 6) "foo" " " "bar"))
 269     (assert (string= (concatenate '(string 6) "foo" #(#\b #\a #\r)) "foobar"))
 270     (assert-type-error (concatenate '(string 7) "foo" #(#\b #\a #\r))))
 271   ;; Non-VECTOR ARRAY types aren't allowed as vector type specifiers.
 272   (locally
 273     (declare (optimize safety))
 274     (assert-type-error (concatenate 'simple-array "foo" "bar"))
 275     (assert-type-error (map 'simple-array #'identity '(1 2 3)))
 276     (assert (equalp #(11 13)
 277                     (map '(simple-array fixnum (*)) #'+ '(1 2 3) '(10 11))))
 278     (assert-type-error (coerce '(1 2 3) 'simple-array))
 279     (assert-type-error (merge 'simple-array (list 1 3) (list 2 4) '<))
 280     (assert (equalp #(3 2 1) (coerce '(3 2 1) '(vector fixnum))))
 281     (assert-type-error (map 'array #'identity '(1 2 3)))
 282     (assert-type-error (map '(array fixnum) #'identity '(1 2 3)))
 283     (assert (equalp #(1 2 3) (coerce '(1 2 3) '(vector fixnum))))
 284     ;; but COERCE has an exemption clause:
 285     (assert (string= "foo" (coerce "foo" 'simple-array)))
 286     ;; ... though not in all cases.
 287     (assert-type-error (coerce '(#\f #\o #\o) 'simple-array))))
 288
 289 ;;; As pointed out by Raymond Toy on #lisp IRC, MERGE had some issues
 290 ;;; with user-defined types until sbcl-0.7.8.11
 291 (deftype list-typeoid () 'list)
 292 (assert (equal '(1 2 3 4) (merge 'list-typeoid (list 1 3) (list 2 4) '<)))
 293 ;;; and also with types that weren't precicely LIST
 294 (assert (equal '(1 2 3 4) (merge 'cons (list 1 3) (list 2 4) '<)))
 295
 296 ;;; but wait, there's more! The NULL and CONS types also have implicit
 297 ;;; length requirements:
 298 (macrolet ((assert-type-error (form)
 299              `(assert (typep (nth-value 1 (ignore-errors ,form))
 300                              'type-error))))
 301   (locally
 302       (declare (optimize safety))
 303     ;; MAKE-SEQUENCE
 304     (assert-type-error (make-sequence 'cons 0))
 305     (assert-type-error (make-sequence 'null 1))
 306     (assert-type-error (make-sequence '(cons t null) 0))
 307     (assert-type-error (make-sequence '(cons t null) 2))
 308     ;; KLUDGE: I'm not certain that this test actually tests for what
 309     ;; it should test, in that the type deriver and optimizers might
 310     ;; be too smart for the good of an exhaustive test system.
 311     ;; However, it makes me feel good.  -- CSR, 2002-10-18
 312     (assert (null (make-sequence 'null 0)))
 313     (assert (= (length (make-sequence 'cons 3)) 3))
 314     (assert (= (length (make-sequence '(cons t null) 1)) 1))
 315     ;; and NIL is not a valid type for MAKE-SEQUENCE
 316     (assert-type-error (make-sequence 'nil 0))
 317     ;; COERCE
 318     (assert-type-error (coerce #(1) 'null))
 319     (assert-type-error (coerce #() 'cons))
 320     (assert-type-error (coerce #() '(cons t null)))
 321     (assert-type-error (coerce #(1 2) '(cons t null)))
 322     (assert (null (coerce #() 'null)))
 323     (assert (= (length (coerce #(1) 'cons)) 1))
 324     (assert (= (length (coerce #(1) '(cons t null))) 1))
 325     (assert-type-error (coerce #() 'nil))
 326     ;; MERGE
 327     (assert-type-error (merge 'null (list 1 3) (list 2 4) '<))
 328     (assert-type-error (merge 'cons () () '<))
 329     (assert (null (merge 'null () () '<)))
 330     (assert (= (length (merge 'cons (list 1 3) (list 2 4) '<)) 4))
 331     (assert (= (length (merge '(cons t (cons t (cons t (cons t null))))
 332                               (list 1 3) (list 2 4)
 333                               '<))
 334                4))
 335     (assert-type-error (merge 'nil () () '<))
 336     ;; CONCATENATE
 337     (assert-type-error (concatenate 'null '(1) "2"))
 338     (assert-type-error (concatenate 'cons #() ()))
 339     (assert-type-error (concatenate '(cons t null) #(1 2 3) #(4 5 6)))
 340     (assert (null (concatenate 'null () #())))
 341     (assert (= (length (concatenate 'cons #() '(1) "2 3")) 4))
 342     (assert (= (length (concatenate '(cons t cons) '(1) "34")) 3))
 343     (assert-type-error (concatenate 'nil '(3)))
 344     ;; FIXME: tests for MAP to come when some brave soul implements
 345     ;; the analogous type checking for MAP/%MAP.
 346     ))
 347 \f
 348 ;;; ELT should signal an error of type TYPE-ERROR if its index
 349 ;;; argument isn't a valid sequence index for sequence:
 350 (defun test-elt-signal (x)
 351   (elt x 3))
 352 (assert (raises-error? (test-elt-signal "foo") type-error))
 353 (assert (eql (test-elt-signal "foob") #\b))
 354 (locally
 355   (declare (optimize (safety 3)))
 356   (assert (raises-error? (elt (list 1 2 3) 3) type-error)))
 357 \f
 358 ;;; confusion in the refactoring led to this signalling an unbound
 359 ;;; variable, not a type error.
 360 (defun svrefalike (x)
 361   (svref x 0))
 362 (assert (raises-error? (svrefalike #*0) type-error))
 363 \f
 364 ;;; checks for uniform bounding index handling under SAFETY 3 code.
 365 ;;;
 366 ;;; KLUDGE: not all in one big form because that causes SBCL to spend
 367 ;;; an absolute age trying to compile it.
 368 (defmacro sequence-bounding-indices-test (&body body)
 369   `(progn
 370     (locally
 371     ;; See Issues 332 [and 333(!)] in the CLHS
 372     (declare (optimize (safety 3)))
 373     (let ((string (make-array 10
 374                               :fill-pointer 5
 375                               :initial-element #\a
 376                               :element-type 'base-char)))
 377         ,(car body)
 378         (format t "... BASE-CHAR")
 379         (finish-output)
 380         (flet ((reset ()
 381                  (setf (fill-pointer string) 10)
 382                  (fill string #\a)
 383                  (setf (fill-pointer string) 5)))
 384           (declare (ignorable #'reset))
 385           ,@(cdr body))))
 386     (locally
 387       ;; See Issues 332 [and 333(!)] in the CLHS
 388       (declare (optimize (safety 3)))
 389       (let ((string (make-array 10
 390                                 :fill-pointer 5
 391                                 :initial-element #\a
 392                                 :element-type 'character)))
 393         ,(car body)
 394         (format t "... CHARACTER")
 395         (finish-output)
 396       (flet ((reset ()
 397                (setf (fill-pointer string) 10)
 398                (fill string #\a)
 399                (setf (fill-pointer string) 5)))
 400         (declare (ignorable #'reset))
 401           ,@(cdr body))))))
 402
 403 (declaim (notinline opaque-identity))
 404 (defun opaque-identity (x) x)
 405 ;;; Accessor SUBSEQ
 406 (sequence-bounding-indices-test
 407  (format t "~&/Accessor SUBSEQ")
 408  (assert (string= (subseq string 0 5) "aaaaa"))
 409  (assert (raises-error? (subseq string 0 6)))
 410  (assert (raises-error? (subseq string (opaque-identity -1) 5)))
 411  (assert (raises-error? (subseq string 4 2)))
 412  (assert (raises-error? (subseq string 6)))
 413  (assert (string= (setf (subseq string 0 5) "abcde") "abcde"))
 414  (assert (string= (subseq string 0 5) "abcde"))
 415  (reset)
 416  (assert (raises-error? (setf (subseq string 0 6) "abcdef")))
 417  (assert (raises-error? (setf (subseq string (opaque-identity -1) 5) "abcdef")))
 418  (assert (raises-error? (setf (subseq string 4 2) "")))
 419  (assert (raises-error? (setf (subseq string 6) "ghij"))))
 420
 421 ;;; Function COUNT, COUNT-IF, COUNT-IF-NOT
 422 (sequence-bounding-indices-test
 423  (format t "~&/Function COUNT, COUNT-IF, COUNT-IF-NOT")
 424  (assert (= (count #\a string :start 0 :end nil) 5))
 425  (assert (= (count #\a string :start 0 :end 5) 5))
 426  (assert (raises-error? (count #\a string :start 0 :end 6)))
 427  (assert (raises-error? (count #\a string :start (opaque-identity -1) :end 5)))
 428  (assert (raises-error? (count #\a string :start 4 :end 2)))
 429  (assert (raises-error? (count #\a string :start 6 :end 9)))
 430  (assert (= (count-if #'alpha-char-p string :start 0 :end nil) 5))
 431  (assert (= (count-if #'alpha-char-p string :start 0 :end 5) 5))
 432  (assert (raises-error?
 433           (count-if #'alpha-char-p string :start 0 :end 6)))
 434  (assert (raises-error?
 435           (count-if #'alpha-char-p string :start (opaque-identity -1) :end 5)))
 436  (assert (raises-error?
 437           (count-if #'alpha-char-p string :start 4 :end 2)))
 438  (assert (raises-error?
 439           (count-if #'alpha-char-p string :start 6 :end 9)))
 440  (assert (= (count-if-not #'alpha-char-p string :start 0 :end nil) 0))
 441  (assert (= (count-if-not #'alpha-char-p string :start 0 :end 5) 0))
 442  (assert (raises-error?
 443           (count-if-not #'alpha-char-p string :start 0 :end 6)))
 444  (assert (raises-error?
 445           (count-if-not #'alpha-char-p string :start (opaque-identity -1) :end 5)))
 446  (assert (raises-error?
 447           (count-if-not #'alpha-char-p string :start 4 :end 2)))
 448  (assert (raises-error?
 449           (count-if-not #'alpha-char-p string :start 6 :end 9))))
 450
 451 ;;; Function FILL
 452 (sequence-bounding-indices-test
 453  (format t "~&/Function FILL")
 454  (assert (string= (fill string #\b :start 0 :end 5) "bbbbb"))
 455  (assert (string= (fill string #\c :start 0 :end nil) "ccccc"))
 456  (assert (raises-error? (fill string #\d :start 0 :end 6)))
 457  (assert (raises-error? (fill string #\d :start (opaque-identity -1) :end 5)))
 458  (assert (raises-error? (fill string #\d :start 4 :end 2)))
 459  (assert (raises-error? (fill string #\d :start 6 :end 9))))
 460
 461 ;;; Function FIND, FIND-IF, FIND-IF-NOT
 462 (sequence-bounding-indices-test
 463  (format t "~&/Function FIND, FIND-IF, FIND-IF-NOT")
 464  (assert (char= (find #\a string :start 0 :end nil) #\a))
 465  (assert (char= (find #\a string :start 0 :end 5) #\a))
 466  (assert (raises-error? (find #\a string :start 0 :end 6)))
 467  (assert (raises-error? (find #\a string :start (opaque-identity -1) :end 5)))
 468  (assert (raises-error? (find #\a string :start 4 :end 2)))
 469  (assert (raises-error? (find #\a string :start 6 :end 9)))
 470  (assert (char= (find-if #'alpha-char-p string :start 0 :end nil) #\a))
 471  (assert (char= (find-if #'alpha-char-p string :start 0 :end 5) #\a))
 472  (assert (raises-error?
 473           (find-if #'alpha-char-p string :start 0 :end 6)))
 474  (assert (raises-error?
 475           (find-if #'alpha-char-p string :start (opaque-identity -1) :end 5)))
 476  (assert (raises-error?
 477           (find-if #'alpha-char-p string :start 4 :end 2)))
 478  (assert (raises-error?
 479           (find-if #'alpha-char-p string :start 6 :end 9)))
 480  (assert (eq (find-if-not #'alpha-char-p string :start 0 :end nil) nil))
 481  (assert (eq (find-if-not #'alpha-char-p string :start 0 :end 5) nil))
 482  (assert (raises-error?
 483           (find-if-not #'alpha-char-p string :start 0 :end 6)))
 484  (assert (raises-error?
 485           (find-if-not #'alpha-char-p string :start (opaque-identity -1) :end 5)))
 486  (assert (raises-error?
 487           (find-if-not #'alpha-char-p string :start 4 :end 2)))
 488  (assert (raises-error?
 489           (find-if-not #'alpha-char-p string :start 6 :end 9))))
 490
 491 ;;; Function MISMATCH
 492 (sequence-bounding-indices-test
 493  (format t "~&/Function MISMATCH")
 494  (assert (null (mismatch string "aaaaa" :start1 0 :end1 nil)))
 495  (assert (= (mismatch "aaab" string :start2 0 :end2 4) 3))
 496  (assert (raises-error? (mismatch "aaaaaa" string :start2 0 :end2 6)))
 497  (assert (raises-error? (mismatch string "aaaaaa" :start1 (opaque-identity -1) :end1 5)))
 498  (assert (raises-error? (mismatch string "" :start1 4 :end1 2)))
 499  (assert (raises-error? (mismatch "aaaa" string :start2 6 :end2 9))))
 500
 501 ;;; Function PARSE-INTEGER
 502 (sequence-bounding-indices-test
 503  (format t "~&/Function PARSE-INTEGER")
 504  (setf (fill-pointer string) 10)
 505  (setf (subseq string 0 10) "1234567890")
 506  (setf (fill-pointer string) 5)
 507  (assert (= (parse-integer string :start 0 :end 5) 12345))
 508  (assert (= (parse-integer string :start 0 :end nil) 12345))
 509  (assert (raises-error? (parse-integer string :start 0 :end 6)))
 510  (assert (raises-error? (parse-integer string :start (opaque-identity -1) :end 5)))
 511  (assert (raises-error? (parse-integer string :start 4 :end 2)))
 512  (assert (raises-error? (parse-integer string :start 6 :end 9))))
 513
 514 ;;; Function PARSE-NAMESTRING
 515 (sequence-bounding-indices-test
 516  (format t "~&/Function PARSE-NAMESTRING")
 517  (setf (fill-pointer string) 10)
 518  (setf (subseq string 0 10)
 519        #-win32 "/dev/ /tmp"
 520        #+win32 "C:/   NUL")
 521  (setf (fill-pointer string) 5)
 522  (assert (truename (parse-namestring string nil *default-pathname-defaults*
 523                                      :start 0 :end 5)))
 524  (assert (truename (parse-namestring string nil *default-pathname-defaults*
 525                                      :start 0 :end nil)))
 526  (assert (raises-error? (parse-namestring string nil
 527                                           *default-pathname-defaults*
 528                                           :start 0 :end 6)))
 529  (assert (raises-error? (parse-namestring string nil
 530                                           *default-pathname-defaults*
 531                                           :start (opaque-identity -1) :end 5)))
 532  (assert (raises-error? (parse-namestring string nil
 533                                           *default-pathname-defaults*
 534                                           :start 4 :end 2)))
 535  (assert (raises-error? (parse-namestring string nil
 536                                           *default-pathname-defaults*
 537                                           :start 6 :end 9))))
 538
 539 ;;; Function POSITION, POSITION-IF, POSITION-IF-NOT
 540 (sequence-bounding-indices-test
 541  (format t "~&/Function POSITION, POSITION-IF, POSITION-IF-NOT")
 542
 543  (assert (= (position #\a string :start 0 :end nil) 0))
 544  (assert (= (position #\a string :start 0 :end 5) 0))
 545  (assert (raises-error? (position #\a string :start 0 :end 6)))
 546  (assert (raises-error? (position #\a string :start (opaque-identity -1) :end 5)))
 547  (assert (raises-error? (position #\a string :start 4 :end 2)))
 548  (assert (raises-error? (position #\a string :start 6 :end 9)))
 549  (assert (= (position-if #'alpha-char-p string :start 0 :end nil) 0))
 550  (assert (= (position-if #'alpha-char-p string :start 0 :end 5) 0))
 551  (assert (raises-error?
 552           (position-if #'alpha-char-p string :start 0 :end 6)))
 553  (assert (raises-error?
 554           (position-if #'alpha-char-p string :start (opaque-identity -1) :end 5)))
 555  (assert (raises-error?
 556           (position-if #'alpha-char-p string :start 4 :end 2)))
 557  (assert (raises-error?
 558           (position-if #'alpha-char-p string :start 6 :end 9)))
 559  (assert (eq (position-if-not #'alpha-char-p string :start 0 :end nil) nil))
 560  (assert (eq (position-if-not #'alpha-char-p string :start 0 :end 5) nil))
 561  (assert (raises-error?
 562           (position-if-not #'alpha-char-p string :start 0 :end 6)))
 563  (assert (raises-error?
 564           (position-if-not #'alpha-char-p string :start (opaque-identity -1) :end 5)))
 565  (assert (raises-error?
 566           (position-if-not #'alpha-char-p string :start 4 :end 2)))
 567  (assert (raises-error?
 568           (position-if-not #'alpha-char-p string :start 6 :end 9))))
 569
 570 ;;; Function READ-FROM-STRING
 571 (sequence-bounding-indices-test
 572  (format t "~&/Function READ-FROM-STRING")
 573  (setf (subseq string 0 5) "(a b)")
 574  (assert (equal (read-from-string string nil nil :start 0 :end 5) '(a b)))
 575  (assert (equal (read-from-string string nil nil :start 0 :end nil) '(a b)))
 576  (assert (raises-error? (read-from-string string nil nil :start 0 :end 6)))
 577  (assert (raises-error? (read-from-string string nil nil :start (opaque-identity -1) :end 5)))
 578  (assert (raises-error? (read-from-string string nil nil :start 4 :end 2)))
 579  (assert (raises-error? (read-from-string string nil nil :start 6 :end 9))))
 580
 581 ;;; Function REDUCE
 582 (sequence-bounding-indices-test
 583  (format t "~&/Function REDUCE")
 584  (setf (subseq string 0 5) "abcde")
 585  (assert (equal (reduce #'list* string :from-end t :start 0 :end nil)
 586                 '(#\a #\b #\c #\d . #\e)))
 587  (assert (equal (reduce #'list* string :from-end t :start 0 :end 5)
 588                 '(#\a #\b #\c #\d . #\e)))
 589  (assert (raises-error? (reduce #'list* string :start 0 :end 6)))
 590  (assert (raises-error? (reduce #'list* string :start (opaque-identity -1) :end 5)))
 591  (assert (raises-error? (reduce #'list* string :start 4 :end 2)))
 592  (assert (raises-error? (reduce #'list* string :start 6 :end 9))))
 593
 594 ;;; Function REMOVE, REMOVE-IF, REMOVE-IF-NOT, DELETE, DELETE-IF,
 595 ;;; DELETE-IF-NOT
 596 (sequence-bounding-indices-test
 597  (format t "~&/Function REMOVE, REMOVE-IF, REMOVE-IF-NOT, ...")
 598  (assert (equal (remove #\a string :start 0 :end nil) ""))
 599  (assert (equal (remove #\a string :start 0 :end 5) ""))
 600  (assert (raises-error? (remove #\a string :start 0 :end 6)))
 601  (assert (raises-error? (remove #\a string :start (opaque-identity -1) :end 5)))
 602  (assert (raises-error? (remove #\a string :start 4 :end 2)))
 603  (assert (raises-error? (remove #\a string :start 6 :end 9)))
 604  (assert (equal (remove-if #'alpha-char-p string :start 0 :end nil) ""))
 605  (assert (equal (remove-if #'alpha-char-p string :start 0 :end 5) ""))
 606  (assert (raises-error?
 607           (remove-if #'alpha-char-p string :start 0 :end 6)))
 608  (assert (raises-error?
 609           (remove-if #'alpha-char-p string :start (opaque-identity -1) :end 5)))
 610  (assert (raises-error?
 611           (remove-if #'alpha-char-p string :start 4 :end 2)))
 612  (assert (raises-error?
 613           (remove-if #'alpha-char-p string :start 6 :end 9)))
 614  (assert (equal (remove-if-not #'alpha-char-p string :start 0 :end nil)
 615                 "aaaaa"))
 616  (assert (equal (remove-if-not #'alpha-char-p string :start 0 :end 5)
 617                 "aaaaa"))
 618  (assert (raises-error?
 619           (remove-if-not #'alpha-char-p string :start 0 :end 6)))
 620  (assert (raises-error?
 621           (remove-if-not #'alpha-char-p string :start (opaque-identity -1) :end 5)))
 622  (assert (raises-error?
 623           (remove-if-not #'alpha-char-p string :start 4 :end 2)))
 624  (assert (raises-error?
 625           (remove-if-not #'alpha-char-p string :start 6 :end 9))))
 626 (sequence-bounding-indices-test
 627  (format t "~&/... DELETE, DELETE-IF, DELETE-IF-NOT")
 628  (assert (equal (delete #\a string :start 0 :end nil) ""))
 629  (reset)
 630  (assert (equal (delete #\a string :start 0 :end 5) ""))
 631  (reset)
 632  (assert (raises-error? (delete #\a string :start 0 :end 6)))
 633  (reset)
 634  (assert (raises-error? (delete #\a string :start (opaque-identity -1) :end 5)))
 635  (reset)
 636  (assert (raises-error? (delete #\a string :start 4 :end 2)))
 637  (reset)
 638  (assert (raises-error? (delete #\a string :start 6 :end 9)))
 639  (reset)
 640  (assert (equal (delete-if #'alpha-char-p string :start 0 :end nil) ""))
 641  (reset)
 642  (assert (equal (delete-if #'alpha-char-p string :start 0 :end 5) ""))
 643  (reset)
 644  (assert (raises-error?
 645           (delete-if #'alpha-char-p string :start 0 :end 6)))
 646  (reset)
 647  (assert (raises-error?
 648           (delete-if #'alpha-char-p string :start (opaque-identity -1) :end 5)))
 649  (reset)
 650  (assert (raises-error?
 651           (delete-if #'alpha-char-p string :start 4 :end 2)))
 652  (reset)
 653  (assert (raises-error?
 654           (delete-if #'alpha-char-p string :start 6 :end 9)))
 655  (reset)
 656  (assert (equal (delete-if-not #'alpha-char-p string :start 0 :end nil)
 657                 "aaaaa"))
 658  (reset)
 659  (assert (equal (delete-if-not #'alpha-char-p string :start 0 :end 5)
 660                 "aaaaa"))
 661  (reset)
 662  (assert (raises-error?
 663           (delete-if-not #'alpha-char-p string :start 0 :end 6)))
 664  (reset)
 665  (assert (raises-error?
 666           (delete-if-not #'alpha-char-p string :start (opaque-identity -1) :end 5)))
 667  (reset)
 668  (assert (raises-error?
 669           (delete-if-not #'alpha-char-p string :start 4 :end 2)))
 670  (reset)
 671  (assert (raises-error?
 672           (delete-if-not #'alpha-char-p string :start 6 :end 9))))
 673
 674 ;;; Function REMOVE-DUPLICATES, DELETE-DUPLICATES
 675 (sequence-bounding-indices-test
 676  (format t "~&/Function REMOVE-DUPLICATES, DELETE-DUPLICATES")
 677  (assert (string= (remove-duplicates string :start 0 :end 5) "a"))
 678  (assert (string= (remove-duplicates string :start 0 :end nil) "a"))
 679  (assert (raises-error? (remove-duplicates string :start 0 :end 6)))
 680  (assert (raises-error? (remove-duplicates string :start (opaque-identity -1) :end 5)))
 681  (assert (raises-error? (remove-duplicates string :start 4 :end 2)))
 682  (assert (raises-error? (remove-duplicates string :start 6 :end 9)))
 683  (assert (string= (delete-duplicates string :start 0 :end 5) "a"))
 684  (reset)
 685  (assert (string= (delete-duplicates string :start 0 :end nil) "a"))
 686  (reset)
 687  (assert (raises-error? (delete-duplicates string :start 0 :end 6)))
 688  (reset)
 689  (assert (raises-error? (delete-duplicates string :start (opaque-identity -1) :end 5)))
 690  (reset)
 691  (assert (raises-error? (delete-duplicates string :start 4 :end 2)))
 692  (reset)
 693  (assert (raises-error? (delete-duplicates string :start 6 :end 9))))
 694
 695 ;;; Function REPLACE
 696 (sequence-bounding-indices-test
 697  (format t "~&/Function REPLACE")
 698  (assert (string= (replace string "bbbbb" :start1 0 :end1 5) "bbbbb"))
 699  (assert (string= (replace (copy-seq "ccccc")
 700                            string
 701                            :start2 0 :end2 nil) "bbbbb"))
 702  (assert (raises-error? (replace string "ccccc" :start1 0 :end1 6)))
 703  (assert (raises-error? (replace string "ccccc" :start2 (opaque-identity -1) :end2 5)))
 704  (assert (raises-error? (replace string "ccccc" :start1 4 :end1 2)))
 705  (assert (raises-error? (replace string "ccccc" :start1 6 :end1 9))))
 706
 707 ;;; Function SEARCH
 708 (sequence-bounding-indices-test
 709  (format t "~&/Function SEARCH")
 710  (assert (= (search "aa" string :start2 0 :end2 5) 0))
 711  (assert (null (search string "aa" :start1 0 :end2 nil)))
 712  (assert (raises-error? (search "aa" string :start2 0 :end2 6)))
 713  (assert (raises-error? (search "aa" string :start2 (opaque-identity -1) :end2 5)))
 714  (assert (raises-error? (search "aa" string :start2 4 :end2 2)))
 715  (assert (raises-error? (search "aa" string :start2 6 :end2 9))))
 716
 717 ;;; Function STRING-UPCASE, STRING-DOWNCASE, STRING-CAPITALIZE,
 718 ;;; NSTRING-UPCASE, NSTRING-DOWNCASE, NSTRING-CAPITALIZE
 719 (defmacro string-case-frob (fn)
 720   `(progn
 721     (assert (raises-error? (,fn string :start 0 :end 6)))
 722     (assert (raises-error? (,fn string :start (opaque-identity -1) :end 5)))
 723     (assert (raises-error? (,fn string :start 4 :end 2)))
 724     (assert (raises-error? (,fn string :start 6 :end 9)))))
 725
 726 (sequence-bounding-indices-test
 727  (format t "~&/Function STRING-UPCASE, STRING-DOWNCASE, STRING-CAPITALIZE, ...")
 728  (string-case-frob string-upcase)
 729  (string-case-frob string-downcase)
 730  (string-case-frob string-capitalize)
 731  (format t "~&/... NSTRING-UPCASE, NSTRING-DOWNCASE, NSTRING-CAPITALIZE")
 732  (string-case-frob nstring-upcase)
 733  (string-case-frob nstring-downcase)
 734  (string-case-frob nstring-capitalize))
 735
 736 ;;; Function STRING=, STRING/=, STRING<, STRING>, STRING<=, STRING>=,
 737 ;;; STRING-EQUAL, STRING-NOT-EQUAL, STRING-LESSP, STRING-GREATERP,
 738 ;;; STRING-NOT-GREATERP, STRING-NOT-LESSP
 739 (defmacro string-predicate-frob (fn)
 740   `(progn
 741     (,fn string "abcde" :start1 0 :end1 5)
 742     (,fn "fghij" string :start2 0 :end2 nil)
 743     (assert (raises-error? (,fn string "klmno"
 744                                 :start1 0 :end1 6)))
 745     (assert (raises-error? (,fn "pqrst" string
 746                                 :start2 (opaque-identity -1) :end2 5)))
 747     (assert (raises-error? (,fn "uvwxy" string
 748                                 :start1 4 :end1 2)))
 749     (assert (raises-error? (,fn string "z" :start2 6 :end2 9)))))
 750 (sequence-bounding-indices-test
 751  (format t "~&/Function STRING=, STRING/=, STRING<, STRING>, STRING<=, STRING>=, ...")
 752  (string-predicate-frob string=)
 753  (string-predicate-frob string/=)
 754  (string-predicate-frob string<)
 755  (string-predicate-frob string>)
 756  (string-predicate-frob string<=)
 757  (string-predicate-frob string>=))
 758 (sequence-bounding-indices-test
 759  (format t "~&/... STRING-EQUAL, STRING-NOT-EQUAL, STRING-LESSP, ...")
 760  (string-predicate-frob string-equal)
 761  (string-predicate-frob string-not-equal)
 762  (string-predicate-frob string-lessp))
 763 (sequence-bounding-indices-test
 764  (format t "~&/... STRING-GREATERP, STRING-NOT-GREATERP, STRING-NOT-LESSP")
 765  (string-predicate-frob string-greaterp)
 766  (string-predicate-frob string-not-greaterp)
 767  (string-predicate-frob string-not-lessp))
 768
 769 ;;; Function SUBSTITUTE, SUBSTITUTE-IF, SUBSTITUTE-IF-NOT,
 770 ;;; NSUBSTITUTE, NSUBSTITUTE-IF, NSUBSTITUTE-IF-NOT
 771 (sequence-bounding-indices-test
 772  (format t "~&/Function SUBSTITUTE, SUBSTITUTE-IF, SUBSTITUTE-IF-NOT, ...")
 773  (assert (string= (substitute #\b #\a string :start 0 :end 5) "bbbbb"))
 774  (assert (string= (substitute #\c #\a string :start 0 :end nil)
 775                   "ccccc"))
 776  (assert (raises-error? (substitute #\b #\a string :start 0 :end 6)))
 777  (assert (raises-error? (substitute #\b #\a string :start (opaque-identity -1) :end 5)))
 778  (assert (raises-error? (substitute #\b #\a string :start 4 :end 2)))
 779  (assert (raises-error? (substitute #\b #\a string :start 6 :end 9)))
 780  (assert (string= (substitute-if #\b #'alpha-char-p string
 781                                  :start 0 :end 5)
 782                   "bbbbb"))
 783  (assert (string= (substitute-if #\c #'alpha-char-p string
 784                                  :start 0 :end nil)
 785                   "ccccc"))
 786  (assert (raises-error? (substitute-if #\b #'alpha-char-p string
 787                                        :start 0 :end 6)))
 788  (assert (raises-error? (substitute-if #\b #'alpha-char-p string
 789                                        :start (opaque-identity -1) :end 5)))
 790  (assert (raises-error? (substitute-if #\b #'alpha-char-p string
 791                                        :start 4 :end 2)))
 792  (assert (raises-error? (substitute-if #\b #'alpha-char-p string
 793                                        :start 6 :end 9)))
 794  (assert (string= (substitute-if-not #\b #'alpha-char-p string
 795                                      :start 0 :end 5)
 796                   "aaaaa"))
 797  (assert (string= (substitute-if-not #\c #'alpha-char-p string
 798                                      :start 0 :end nil)
 799                   "aaaaa"))
 800  (assert (raises-error? (substitute-if-not #\b #'alpha-char-p string
 801                                            :start 0 :end 6)))
 802  (assert (raises-error? (substitute-if-not #\b #'alpha-char-p string
 803                                            :start (opaque-identity -1) :end 5)))
 804  (assert (raises-error? (substitute-if-not #\b #'alpha-char-p string
 805                                            :start 4 :end 2)))
 806  (assert (raises-error? (substitute-if-not #\b #'alpha-char-p string
 807                                            :start 6 :end 9))))
 808 (sequence-bounding-indices-test
 809  (format t "~&/... NSUBSTITUTE, NSUBSTITUTE-IF, NSUBSTITUTE-IF-NOT")
 810  (assert (string= (nsubstitute #\b #\a string :start 0 :end 5) "bbbbb"))
 811  (reset)
 812  (assert (string= (nsubstitute #\c #\a string :start 0 :end nil)
 813                   "ccccc"))
 814  (reset)
 815  (assert (raises-error? (nsubstitute #\b #\a string :start 0 :end 6)))
 816  (reset)
 817  (assert (raises-error? (nsubstitute #\b #\a string :start (opaque-identity -1) :end 5)))
 818  (reset)
 819  (assert (raises-error? (nsubstitute #\b #\a string :start 4 :end 2)))
 820  (reset)
 821  (assert (raises-error? (nsubstitute #\b #\a string :start 6 :end 9)))
 822  (reset)
 823  (assert (string= (nsubstitute-if #\b #'alpha-char-p string
 824                                   :start 0 :end 5)
 825                   "bbbbb"))
 826  (reset)
 827  (assert (string= (nsubstitute-if #\c #'alpha-char-p string
 828                                   :start 0 :end nil)
 829                   "ccccc"))
 830  (reset)
 831  (assert (raises-error? (nsubstitute-if #\b #'alpha-char-p string
 832                                         :start 0 :end 6)))
 833  (reset)
 834  (assert (raises-error? (nsubstitute-if #\b #'alpha-char-p string
 835                                         :start (opaque-identity -1) :end 5)))
 836  (reset)
 837  (assert (raises-error? (nsubstitute-if #\b #'alpha-char-p string
 838                                         :start 4 :end 2)))
 839  (reset)
 840  (assert (raises-error? (nsubstitute-if #\b #'alpha-char-p string
 841                                         :start 6 :end 9)))
 842  (reset)
 843  (assert (string= (nsubstitute-if-not #\b #'alpha-char-p string
 844                                       :start 0 :end 5)
 845                   "aaaaa"))
 846  (reset)
 847  (assert (string= (nsubstitute-if-not #\c #'alpha-char-p string
 848                                       :start 0 :end nil)
 849                   "aaaaa"))
 850  (reset)
 851  (assert (raises-error? (nsubstitute-if-not #\b #'alpha-char-p string
 852                                             :start 0 :end 6)))
 853  (reset)
 854  (assert (raises-error? (nsubstitute-if-not #\b #'alpha-char-p string
 855                                             :start (opaque-identity -1) :end 5)))
 856  (reset)
 857  (assert (raises-error? (nsubstitute-if-not #\b #'alpha-char-p string
 858                                             :start 4 :end 2)))
 859  (reset)
 860  (assert (raises-error? (nsubstitute-if-not #\b #'alpha-char-p string
 861                                             :start 6 :end 9))))
 862 ;;; Function WRITE-STRING, WRITE-LINE
 863 (sequence-bounding-indices-test
 864  (format t "~&/Function WRITE-STRING, WRITE-LINE")
 865  (write-string string *standard-output* :start 0 :end 5)
 866  (write-string string *standard-output* :start 0 :end nil)
 867  (assert (raises-error? (write-string string *standard-output*
 868                                       :start 0 :end 6)))
 869  (assert (raises-error? (write-string string *standard-output*
 870                                       :start (opaque-identity -1) :end 5)))
 871  (assert (raises-error? (write-string string *standard-output*
 872                                       :start 4 :end 2)))
 873  (assert (raises-error? (write-string string *standard-output*
 874                                       :start 6 :end 9)))
 875  (write-line string *standard-output* :start 0 :end 5)
 876  (write-line string *standard-output* :start 0 :end nil)
 877  (assert (raises-error? (write-line string *standard-output*
 878                                       :start 0 :end 6)))
 879  (assert (raises-error? (write-line string *standard-output*
 880                                       :start (opaque-identity -1) :end 5)))
 881  (assert (raises-error? (write-line string *standard-output*
 882                                       :start 4 :end 2)))
 883  (assert (raises-error? (write-line string *standard-output*
 884                                       :start 6 :end 9))))
 885
 886 ;;; Macro WITH-INPUT-FROM-STRING
 887 (sequence-bounding-indices-test
 888  (format t "~&/Macro WITH-INPUT-FROM-STRING")
 889  (with-input-from-string (s string :start 0 :end 5)
 890    (assert (char= (read-char s) #\a)))
 891  (with-input-from-string (s string :start 0 :end nil)
 892    (assert (char= (read-char s) #\a)))
 893  (assert (raises-error?
 894           (with-input-from-string (s string :start 0 :end 6)
 895             (read-char s))))
 896  (assert (raises-error?
 897           (with-input-from-string (s string :start (opaque-identity -1) :end 5)
 898             (read-char s))))
 899  (assert (raises-error?
 900           (with-input-from-string (s string :start 4 :end 2)
 901             (read-char s))))
 902  (assert (raises-error?
 903           (with-input-from-string (s string :start 6 :end 9)
 904             (read-char s)))))
 905 \f
 906 ;;; testing bit-bashing according to _The Practice of Programming_
 907 (defun fill-bytes-for-testing (bitsize)
 908   "Return a list of 'bytes' of type (MOD BITSIZE)."
 909   (remove-duplicates (list 0
 910                            (1- (ash 1 (1- bitsize)))
 911                            (ash 1 (1- bitsize))
 912                            (1- (ash 1 bitsize)))))
 913
 914 (defun fill-with-known-value (value size &rest vectors)
 915   (dolist (vec vectors)
 916     (dotimes (i size)
 917       (setf (aref vec i) value))))
 918
 919 (defun collect-fill-amounts (n-power)
 920   (remove-duplicates
 921    (loop for i from 0 upto n-power
 922          collect (1- (expt 2 i))
 923          collect (expt 2 i)
 924          collect (1+ (expt 2 i)))))
 925
 926 (defun test-fill-bashing (bitsize padding-amount n-power)
 927   (let* ((size (+ (* padding-amount 2) (expt 2 n-power) (* padding-amount 2)))
 928          (standard (make-array size :element-type `(unsigned-byte ,bitsize)))
 929          (bashed (make-array size :element-type `(unsigned-byte ,bitsize)))
 930          (fill-amounts (collect-fill-amounts n-power))
 931          (bash-function (intern (format nil "UB~A-BASH-FILL" bitsize)
 932                                 (find-package "SB-KERNEL"))))
 933     (format t "~&/Function ~A..." bash-function)
 934     (loop for offset from padding-amount below (* 2 padding-amount) do
 935           (dolist (c (fill-bytes-for-testing bitsize))
 936             (dolist (n fill-amounts)
 937               (fill-with-known-value (mod (lognot c) (ash 1 bitsize)) n
 938                                      standard bashed)
 939               ;; fill vectors
 940               ;; a) the standard slow way
 941               (fill standard c :start offset :end (+ offset n))
 942               ;; b) the blazingly fast way
 943               (let ((value (loop for i from 0 by bitsize
 944                                  until (= i sb-vm:n-word-bits)
 945                                  sum (ash c i))))
 946                 (funcall bash-function value bashed offset n))
 947               ;; check for errors
 948               (when (mismatch standard bashed)
 949                 (format t "Test with offset ~A, fill ~A and length ~A failed.~%"
 950                         offset c n)
 951                 (format t "Mismatch: ~A ~A~%"
 952                         (subseq standard 0 (+ offset n 1))
 953                         (subseq bashed 0 (+ offset n 1)))
 954                 (return-from test-fill-bashing nil))))
 955           finally (return t))))
 956
 957 (defun test-copy-bashing (bitsize padding-amount n-power)
 958   (let* ((size (+ (* padding-amount 2) (expt 2 n-power) (* padding-amount 2)))
 959          (standard-dst (make-array size :element-type `(unsigned-byte ,bitsize)))
 960          (bashed-dst (make-array size :element-type `(unsigned-byte ,bitsize)))
 961          (source (make-array size :element-type `(unsigned-byte ,bitsize)))
 962          (fill-amounts (collect-fill-amounts n-power))
 963          (bash-function (intern (format nil "UB~A-BASH-COPY" bitsize)
 964                                 (find-package "SB-KERNEL"))))
 965     (format t "~&/Function ~A..." bash-function)
 966     (do ((source-offset padding-amount (1+ source-offset)))
 967         ((>= source-offset (* padding-amount 2))
 968          ;; success!
 969          t)
 970      (do ((target-offset padding-amount (1+ target-offset)))
 971          ((>= target-offset (* padding-amount 2)))
 972        (dolist (c (fill-bytes-for-testing bitsize))
 973          (dolist (n fill-amounts)
 974            (fill-with-known-value (mod (lognot c) (ash 1 bitsize)) size
 975                                   source standard-dst bashed-dst)
 976            ;; fill with test data
 977            (fill source c :start source-offset :end (+ source-offset n))
 978            ;; copy filled test data to test vectors
 979            ;; a) the slow way
 980            (replace standard-dst source
 981                     :start1 target-offset :end1 (+ target-offset n)
 982                     :start2 source-offset :end2 (+ source-offset n))
 983            ;; b) the blazingly fast way
 984            (funcall bash-function source source-offset
 985                     bashed-dst target-offset n)
 986            ;; check for errors
 987            (when (mismatch standard-dst bashed-dst)
 988              (format t "Test with target-offset ~A, source-offset ~A, fill ~A, and length ~A failed.~%"
 989                      target-offset source-offset c n)
 990              (format t "Mismatch:~% correct ~A~% actual  ~A~%"
 991                      standard-dst
 992                      bashed-dst)
 993              (return-from test-copy-bashing nil))))))))
 994
 995 ;; Too slow for the interpreter
 996 #+#.(cl:if (cl:eq sb-ext:*evaluator-mode* :compile) '(and) '(or))
 997 (loop for i = 1 then (* i 2) do
 998      ;; the bare '32' here is fairly arbitrary; '8' provides a good
 999      ;; range of lengths over which to fill and copy, which should tease
1000      ;; out most errors in the code (if any exist).  (It also makes this
1001      ;; part of the test suite finish reasonably quickly.)
1002      (assert (test-fill-bashing i 32 8))
1003      (assert (test-copy-bashing i 32 8))
1004      until (= i sb-vm:n-word-bits))
1005 \f
1006 ;;; success