/usr/share/scsh-0.6/scsh/bitwise-ops-test.scm is in scsh-common-0.6 0.6.7-8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 | ;;; Test for the function in section 10.1 of the scsh-manual "Miscellaneous routines - Integer bitwise ops"
;;; Author: Christoph Hetz
;; for testing: (certainly the path will be an other on other systems...)
;; ,open define-record-types handle
;; ,config ,load C:/cygwin/home/mephisto/cvs-scsh/scsh/scsh/test/test-packages.scm
;; ,load C:/cygwin/home/mephisto/cvs-scsh/scsh/scsh/test/test-base.scm
;; load this file
;; (test-all)
;; FIXX it - negative integers should be included
;; *** help-functions ***
;; these <bin-list>s are in reverse order!
(define int->bin-list
(lambda (i)
(if (zero? i)
'()
(if (even? i)
(cons 0 (int->bin-list (/ i 2)))
(cons 1 (int->bin-list (/ (- i 1) 2)))))))
(define bin-list->int
(lambda (b-l)
(bin-list->int-1 b-l 1)))
(define bin-list->int-1
(lambda (b-l c)
(if (null? b-l)
0
(if (= 1 (car b-l))
(+ c (bin-list->int-1 (cdr b-l)
(* c 2)))
(bin-list->int-1 (cdr b-l)
(* c 2))))))
;; ---------------------------------------------------------
(define my-b-l-arithmetic-shift
(lambda (i j)
(if (or (null? i)
(zero? j))
i
(if (> j 0)
(append (let loop ((j j))
(if (zero? j)
'()
(cons 0 (loop (- j 1)))))
i)
(let loop ((i i)
(j j))
(if (zero? j)
i
(if (null? i)
'()
(loop (cdr i)
(+ j 1)))))))))
(define my-arithmetic-shift
(lambda (i j)
(bin-list->int (my-b-l-arithmetic-shift (int->bin-list i)
j))))
;; -------------------------------------------------------------
(define my-b-l-bitwise-and
(lambda (i j)
(let* ((i-length (length i))
(j-length (length j))
(max-length (if (> i-length j-length)
i-length
j-length)))
(my-b-l-bitwise-and-1 (blow-up-by i (- max-length i-length))
(blow-up-by j (- max-length j-length))))))
(define my-b-l-bitwise-and-1
(lambda (i j)
(if (null? i)
'()
(cons (if (and (= 1 (car i))
(= 1 (car j)))
1
0)
(my-b-l-bitwise-and-1 (cdr i)
(cdr j))))))
(define my-bitwise-and
(lambda (i j)
(bin-list->int (my-b-l-bitwise-and (int->bin-list i)
(int->bin-list j)))))
;; -----------------------------------------------------------------
(define blow-up-by
(lambda (l i)
(if (zero? i)
l
(append l
(let loop ((i i))
(if (zero? i)
'()
(cons 0 (loop (- i 1)))))))))
;; ------------------------------------------------------------------
(define my-b-l-bitwise-or
(lambda (i j)
(let* ((i-length (length i))
(j-length (length j))
(max-length (if (> i-length j-length)
i-length
j-length)))
(my-b-l-bitwise-or-1 (blow-up-by i (- max-length i-length))
(blow-up-by j (- max-length j-length))))))
(define my-b-l-bitwise-or-1
(lambda (i j)
(if (null? i)
'()
(cons (if (or (= 1 (car i))
(= 1 (car j)))
1
0)
(my-b-l-bitwise-or-1 (cdr i)
(cdr j))))))
(define my-bitwise-or
(lambda (i j)
(bin-list->int (my-b-l-bitwise-or (int->bin-list i)
(int->bin-list j)))))
;; --------------------------------------------------------------------------
;; FIXX it - there should be done something
(define p-my-b-l-bitwise-not
(lambda (i)
(if (null? i)
'()
(cons (if (= 1 (car i))
0
1)
(p-my-b-l-bitwise-not (cdr i))))))
;
;(define my-bitwise-not
; (lambda (i)
; (bin-list->int (my-b-l-bitwise-not (int->bin-list i)))))
(define my-bitwise-not
(lambda (i)
(- (+ 1 i))))
;; -----------------------------------------------------------
(define my-b-l-bitwise-xor
(lambda (i j)
(let* ((i-length (length i))
(j-length (length j))
(max-length (if (> i-length j-length)
i-length
j-length)))
(my-b-l-bitwise-xor-1 (blow-up-by i (- max-length i-length))
(blow-up-by j (- max-length j-length))))))
(define my-b-l-bitwise-xor-1
(lambda (i j)
(my-b-l-bitwise-or (my-b-l-bitwise-and i
(p-my-b-l-bitwise-not j))
(my-b-l-bitwise-and (p-my-b-l-bitwise-not i)
j))))
(define my-bitwise-xor
(lambda (i j)
(bin-list->int (my-b-l-bitwise-xor (int->bin-list i)
(int->bin-list j)))))
;; -----------------------------------------------------------
;; *** tests ***
(add-test-multiple! 'arithmetic-shift-test 'bitwise-ops
(lambda (i j)
(equal? (my-arithmetic-shift i j)
(arithmetic-shift i j)))
'(1 2 3 63 64 65 127 128 129 1023 1024 1025 4294967295 4294967296 4294967297 18446744073709551615 18446744073709551616 18446744073709551617)
'(-10 -5 -2 -1 0 1 2 5 10 15))
(add-test-multiple! 'bitwise-and-test 'bitwise-ops
(lambda (i j)
(equal? (my-bitwise-and i j)
(bitwise-and i j)))
'(1 2 3 63 64 65 127 128 129 1023 1024 1025 4294967295 4294967296 4294967297 18446744073709551615 18446744073709551616 18446744073709551617)
'(1 2 3 63 64 65 127 128 129 1023 1024 1025 4294967295 4294967296 4294967297 18446744073709551615 18446744073709551616 18446744073709551617))
(add-test-multiple! 'bitwise-ior-test 'bitwise-ops
(lambda (i j)
(equal? (my-bitwise-or i j)
(bitwise-ior i j)))
'(1 2 3 63 64 65 127 128 129 1023 1024 1025 4294967295 4294967296 4294967297 18446744073709551615 18446744073709551616 18446744073709551617)
'(1 2 3 63 64 65 127 128 129 1023 1024 1025 4294967295 4294967296 4294967297 18446744073709551615 18446744073709551616 18446744073709551617))
(add-test-multiple! 'bitwise-xor-test 'bitwise-ops
(lambda (i j)
(equal? (my-bitwise-xor i j)
(bitwise-xor i j)))
'(1 2 3 63 64 65 127 128 129 1023 1024 1025 4294967295 4294967296 4294967297 18446744073709551615 18446744073709551616 18446744073709551617)
'(1 2 3 63 64 65 127 128 129 1023 1024 1025 4294967295 4294967296 4294967297 18446744073709551615 18446744073709551616 18446744073709551617))
(add-test-multiple! 'bitwise-not-test 'bitwise-ops
(lambda (i)
(equal? (my-bitwise-not i)
(bitwise-not i)))
'(1 2 3 63 64 65 127 128 129 1023 1024 1025 4294967295 4294967296 4294967297 18446744073709551615 18446744073709551616 18446744073709551617))
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