* Made a couple of functions (not all yet) tail recursive.

  Thanks to William Webber for the hint.

1 files changed, 242 insertions, 0 deletions

diff --git a/test-suite/tests/common-list.test b/test-suite/tests/common-list.test
new file mode 100644
index 000000000..349ba9e4f
--- /dev/null
+++ b/test-suite/tests/common-list.test
@@ -0,0 +1,242 @@
+;;;; common-list.test --- tests guile's common list functions -*- scheme -*-
+;;;; Copyright (C) 2000 Free Software Foundation, Inc.
+;;;; 
+;;;; This program is free software; you can redistribute it and/or modify
+;;;; it under the terms of the GNU General Public License as published by
+;;;; the Free Software Foundation; either version 2, or (at your option)
+;;;; any later version.
+;;;; 
+;;;; This program is distributed in the hope that it will be useful,
+;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;;; GNU General Public License for more details.
+;;;; 
+;;;; You should have received a copy of the GNU General Public License
+;;;; along with this software; see the file COPYING.  If not, write to
+;;;; the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+;;;; Boston, MA 02111-1307 USA
+;;;;
+;;;; As a special exception, the Free Software Foundation gives permission
+;;;; for additional uses of the text contained in its release of GUILE.
+;;;;
+;;;; The exception is that, if you link the GUILE library with other files
+;;;; to produce an executable, this does not by itself cause the
+;;;; resulting executable to be covered by the GNU General Public License.
+;;;; Your use of that executable is in no way restricted on account of
+;;;; linking the GUILE library code into it.
+;;;;
+;;;; This exception does not however invalidate any other reasons why
+;;;; the executable file might be covered by the GNU General Public License.
+;;;;
+;;;; This exception applies only to the code released by the
+;;;; Free Software Foundation under the name GUILE.  If you copy
+;;;; code from other Free Software Foundation releases into a copy of
+;;;; GUILE, as the General Public License permits, the exception does
+;;;; not apply to the code that you add in this way.  To avoid misleading
+;;;; anyone as to the status of such modified files, you must delete
+;;;; this exception notice from them.
+;;;;
+;;;; If you write modifications of your own for GUILE, it is your choice
+;;;; whether to permit this exception to apply to your modifications.
+;;;; If you do not wish that, delete this exception notice.  
+
+(use-modules (ice-9 documentation)
+	     (ice-9 common-list))
+
+
+;;;
+;;; miscellaneous
+;;;
+
+
+(define (documented? object)
+  (object-documentation object))
+
+
+;;;
+;;; intersection
+;;;
+
+(with-test-prefix "intersection"
+
+  (pass-if "documented?" 
+    (documented? intersection))
+
+  (pass-if "both arguments empty"
+    (eq? (intersection '() '()) '()))
+
+  (pass-if "first argument empty"
+    (eq? (intersection '() '(1)) '()))
+
+  (pass-if "second argument empty"
+    (eq? (intersection '(1) '()) '()))
+
+  (pass-if "disjoint arguments"
+    (eq? (intersection '(1) '(2)) '()))
+
+  (pass-if "equal arguments"
+    (equal? (intersection '(1) '(1)) '(1)))
+
+  (pass-if "reverse argument order"
+    (equal? (intersection '(1 2 3) '(3 2 1)) '(1 2 3)))
+
+  (pass-if "multiple matches in first list"
+    (equal? (intersection '(1 1 2 2 3) '(3 2 1)) '(1 1 2 2 3)))
+
+  (pass-if "multiple matches in second list"
+    (equal? (intersection '(1 2 3) '(3 3 2 2 1)) '(1 2 3)))
+
+  (pass-if "mixed arguments"
+    (equal? (intersection '(1 2 3 5 7 8 10) '(1 3 4 7 8 9)) '(1 3 7 8)))
+
+  )
+
+
+;;;
+;;; set-difference
+;;;
+
+(with-test-prefix "set-difference"
+
+  (pass-if "documented?" 
+    (documented? set-difference))
+
+  (pass-if "both arguments empty"
+    (eq? (set-difference '() '()) '()))
+
+  (pass-if "first argument empty"
+    (eq? (set-difference '() '(1)) '()))
+
+  (pass-if "second argument empty"
+    (equal? (set-difference '(1) '()) '(1)))
+
+  (pass-if "disjoint arguments"
+    (equal? (set-difference '(1) '(2)) '(1)))
+
+  (pass-if "equal arguments"
+    (eq? (set-difference '(1) '(1)) '()))
+
+  (pass-if "reverse argument order"
+    (eq? (set-difference '(1 2 3) '(3 2 1)) '()))
+
+  (pass-if "multiple matches in first list"
+    (eq? (set-difference '(1 1 2 2 3) '(3 2 1)) '()))
+
+  (pass-if "multiple matches in second list"
+    (eq? (set-difference '(1 2 3) '(3 3 2 2 1)) '()))
+
+  (pass-if "mixed arguments"
+    (equal? (set-difference '(1 2 3 5 7 8 10) '(1 3 4 7 8 9)) '(2 5 10)))
+
+  )
+
+
+;;;
+;;; remove-if
+;;;
+
+(with-test-prefix "remove-if"
+
+  (pass-if "documented?" 
+    (documented? remove-if))
+
+  (pass-if "empty list, remove all"
+    (eq? (remove-if (lambda (x) #t) '()) '()))
+
+  (pass-if "empty list, remove none"
+    (eq? (remove-if (lambda (x) #f) '()) '()))
+
+  (pass-if "non-empty list, remove all"
+    (eq? (remove-if (lambda (x) #t) '(1 2 3 4)) '()))
+
+  (pass-if "non-empty list, remove none"
+    (equal? (remove-if (lambda (x) #f) '(1 2 3 4)) '(1 2 3 4)))
+
+  (pass-if "non-empty list, remove some"
+    (equal? (remove-if odd? '(1 2 3 4)) '(2 4)))
+
+  )
+
+
+;;;
+;;; remove-if-not
+;;;
+
+
+(with-test-prefix "remove-if-not"
+
+  (pass-if "documented?" 
+    (documented? remove-if-not))
+
+  (pass-if "empty list, remove all"
+    (eq? (remove-if-not (lambda (x) #f) '()) '()))
+
+  (pass-if "empty list, remove none"
+    (eq? (remove-if-not (lambda (x) #t) '()) '()))
+
+  (pass-if "non-empty list, remove all"
+    (eq? (remove-if-not (lambda (x) #f) '(1 2 3 4)) '()))
+
+  (pass-if "non-empty list, remove none"
+    (equal? (remove-if-not (lambda (x) #t) '(1 2 3 4)) '(1 2 3 4)))
+
+  (pass-if "non-empty list, remove some"
+    (equal? (remove-if-not odd? '(1 2 3 4)) '(1 3)))
+
+  )
+
+
+;;;
+;;; delete-if!
+;;;
+
+
+(with-test-prefix "delete-if!"
+
+  (pass-if "documented?" 
+    (documented? delete-if!))
+
+  (pass-if "empty list, remove all"
+    (eq? (delete-if! (lambda (x) #t) '()) '()))
+
+  (pass-if "empty list, remove none"
+    (eq? (delete-if! (lambda (x) #f) '()) '()))
+
+  (pass-if "non-empty list, remove all"
+    (eq? (delete-if! (lambda (x) #t) '(1 2 3 4)) '()))
+
+  (pass-if "non-empty list, remove none"
+    (equal? (delete-if! (lambda (x) #f) '(1 2 3 4)) '(1 2 3 4)))
+
+  (pass-if "non-empty list, remove some"
+    (equal? (delete-if! odd? '(1 2 3 4)) '(2 4)))
+
+  )
+
+
+;;;
+;;; delete-if-not!
+;;;
+
+
+(with-test-prefix "delete-if-not!"
+
+  (pass-if "documented?" 
+    (documented? delete-if-not!))
+
+  (pass-if "empty list, remove all"
+    (eq? (delete-if-not! (lambda (x) #f) '()) '()))
+
+  (pass-if "empty list, remove none"
+    (eq? (delete-if-not! (lambda (x) #t) '()) '()))
+
+  (pass-if "non-empty list, remove all"
+    (eq? (delete-if-not! (lambda (x) #f) '(1 2 3 4)) '()))
+
+  (pass-if "non-empty list, remove none"
+    (equal? (delete-if-not! (lambda (x) #t) '(1 2 3 4)) '(1 2 3 4)))
+
+  (pass-if "non-empty list, remove some"
+    (equal? (delete-if-not! odd? '(1 2 3 4)) '(1 3)))
+
+  )