Add comment about handling of exactness specifiers
[bpt/guile.git] / test-suite / tests / numbers.test
CommitLineData
de142bea 1;;;; numbers.test --- tests guile's numbers -*- scheme -*-
8e43ed5d 2;;;; Copyright (C) 2000, 2001, 2003, 2004, 2005, 2006, 2009, 2010, 2011 Free Software Foundation, Inc.
de142bea 3;;;;
73be1d9e
MV
4;;;; This library is free software; you can redistribute it and/or
5;;;; modify it under the terms of the GNU Lesser General Public
6;;;; License as published by the Free Software Foundation; either
53befeb7 7;;;; version 3 of the License, or (at your option) any later version.
73be1d9e
MV
8;;;;
9;;;; This library is distributed in the hope that it will be useful,
de142bea 10;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
73be1d9e
MV
11;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12;;;; Lesser General Public License for more details.
13;;;;
14;;;; You should have received a copy of the GNU Lesser General Public
15;;;; License along with this library; if not, write to the Free Software
92205699 16;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
de142bea 17
a1fb3b1c
KR
18(define-module (test-suite test-numbers)
19 #:use-module (test-suite lib)
ff62c168 20 #:use-module (ice-9 documentation)
a8591a55 21 #:use-module (srfi srfi-1) ; list library
ff62c168 22 #:use-module (srfi srfi-11)) ; let-values
de142bea 23
de142bea
DH
24;;;
25;;; miscellaneous
26;;;
27
1b3a7932
DH
28(define exception:numerical-overflow
29 (cons 'numerical-overflow "^Numerical overflow"))
30
cb18f2a8 31(define (documented? object)
5c96bc39 32 (not (not (object-documentation object))))
de142bea 33
8b7838b5
RB
34(define fixnum-bit
35 (inexact->exact (+ (/ (log (+ most-positive-fixnum 1)) (log 2)) 1)))
36
21e39e8f
DH
37(define fixnum-min most-negative-fixnum)
38(define fixnum-max most-positive-fixnum)
de142bea 39
a1fb3b1c
KR
40;; Divine the number of bits in the mantissa of a flonum.
41;; We look for when 2.0^i+1.0 gets rounded, ie. the difference between that
42;; value and 2.0^k is not 1.0.
43;; Of course this assumes flonums have a fixed precision mantissa, but
44;; that's the case now and probably into the forseeable future.
45;; On an IEEE system, which means pretty much everywhere, the value here is
46;; the usual 53.
47;;
48(define dbl-mant-dig
49 (let more ((i 1)
50 (d 2.0))
51 (if (> i 1024)
52 (error "Oops, cannot determine number of bits in mantissa of inexact"))
53 (let* ((sum (+ 1.0 d))
54 (diff (- sum d)))
55 (if (= diff 1.0)
56 (more (1+ i) (* 2.0 d))
57 i))))
58
59;; like ash, but working on a flonum
60(define (ash-flo x n)
61 (while (> n 0)
62 (set! x (* 2.0 x))
63 (set! n (1- n)))
64 (while (< n 0)
65 (set! x (* 0.5 x))
66 (set! n (1+ n)))
67 x)
49579cbd
KR
68
69;; `quotient' but rounded towards -infinity, like `modulo' or `ash' do
70;; note only positive D supported (that's all that's currently required)
71(define-public (quotient-floor n d)
72 (if (negative? n)
73 (quotient (- n d -1) d) ;; neg/pos
74 (quotient n d))) ;; pos/pos
75
8ab3d8a0
KR
76;; return true of X is in the range LO to HI, inclusive
77(define (within-range? lo hi x)
78 (and (>= x (min lo hi))
79 (<= x (max lo hi))))
80
81;; return true if GOT is within +/- 0.01 of GOT
82;; for a complex number both real and imaginary parts must be in that range
83(define (eqv-loosely? want got)
84 (and (within-range? (- (real-part want) 0.01)
85 (+ (real-part want) 0.01)
86 (real-part got))
87 (within-range? (- (imag-part want) 0.01)
88 (+ (imag-part want) 0.01)
89 (imag-part got))))
90
91;; return true if OBJ is negative infinity
92(define (negative-infinity? obj)
93 (and (real? obj)
94 (negative? obj)
95 (inf? obj)))
96
ff62c168
MW
97;;
98;; Tolerance used by test-eqv? for inexact numbers.
99;;
100(define test-epsilon 1e-10)
101
102;;
103;; Like eqv?, except that inexact finite numbers need only be within
a8591a55
MW
104;; test-epsilon (1e-10) to be considered equal. For non-real complex
105;; numbers, each component is tested according to these rules. The
106;; intent is that the known-correct value will be the first parameter.
ff62c168
MW
107;;
108(define (test-eqv? x y)
109 (cond ((real? x)
110 (and (real? y) (test-real-eqv? x y)))
111 ((complex? x)
112 (and (not (real? y))
113 (test-real-eqv? (real-part x) (real-part y))
114 (test-real-eqv? (imag-part x) (imag-part y))))
115 (else (eqv? x y))))
116
117;; Auxiliary predicate used by test-eqv?
118(define (test-real-eqv? x y)
a8591a55 119 (cond ((or (exact? x) (nan? x) (inf? x))
ff62c168
MW
120 (eqv? x y))
121 (else (and (inexact? y) (> test-epsilon (abs (- x y)))))))
122
55a8b708
MW
123;; return true if OBJ is a real NaN
124(define (real-nan? obj)
125 (and (real? obj)
126 (nan? obj)))
127
c7218482
MW
128;; return true if OBJ is a non-real complex number
129;; whose real part is a nan, and whose imaginary
130;; part is an inexact zero.
131(define (almost-real-nan? obj)
132 (and (not (real? obj))
133 (nan? (real-part obj))
134 (zero? (imag-part obj))))
135
55a8b708
MW
136;; return true if both the real and imaginary
137;; parts of OBJ are NaNs
138(define (complex-nan? obj)
139 (and (nan? (real-part obj))
140 (nan? (imag-part obj))))
141
142;; return true if the real part of OBJ is zero
143;; and the imaginary part is a NaN.
144(define (imaginary-nan? obj)
145 (and (zero? (real-part obj))
146 (nan? (imag-part obj))))
147
c7218482
MW
148;; return true if OBJ is a non-real complex zero
149(define (complex-zero? obj)
150 (and (zero? obj)
151 (complex? obj)
152 (not (real? obj))))
153
8ab3d8a0
KR
154(define const-e 2.7182818284590452354)
155(define const-e^2 7.3890560989306502274)
156(define const-1/e 0.3678794411714423215)
157
158
a580ebba
KR
159;;;
160;;; 1+
161;;;
162
f13f1e9f 163(with-test-prefix/c&e "1+"
a580ebba
KR
164
165 (pass-if "documented?"
166 (documented? 1+))
167
f13f1e9f
LC
168 (pass-if "0" (eqv? 1 (1+ 0)))
169 (pass-if "-1" (eqv? 0 (1+ -1)))
170 (pass-if "100" (eqv? 101 (1+ 100)))
171 (pass-if "-100" (eqv? -99 (1+ -100)))
e78d4bf9
LC
172
173 ;; The maximum fixnum on a 32-bit architecture: 2^29 - 1.
f13f1e9f
LC
174 (pass-if "1+ fixnum = bignum (32-bit)"
175 (eqv? 536870912 (1+ 536870911)))
e78d4bf9
LC
176
177 ;; The maximum fixnum on a 64-bit architecture: 2^61 - 1.
f13f1e9f
LC
178 (pass-if "1+ fixnum = bignum (64-bit)"
179 (eqv? 2305843009213693952 (1+ 2305843009213693951))))
a580ebba
KR
180
181;;;
182;;; 1-
183;;;
184
f13f1e9f 185(with-test-prefix/c&e "1-"
a580ebba
KR
186
187 (pass-if "documented?"
188 (documented? 1-))
189
f13f1e9f
LC
190 (pass-if "0" (eqv? -1 (1- 0)))
191 (pass-if "1" (eqv? 0 (1- 1)))
192 (pass-if "100" (eqv? 99 (1- 100)))
193 (pass-if "-100" (eqv? -101 (1- -100)))
e78d4bf9
LC
194
195 ;; The minimum fixnum on a 32-bit architecture: -2^29.
f13f1e9f
LC
196 (pass-if "1- fixnum = bignum (32-bit)"
197 (eqv? -536870913 (1- -536870912)))
e78d4bf9
LC
198
199 ;; The minimum fixnum on a 64-bit architecture: -2^61.
f13f1e9f
LC
200 (pass-if "1- fixnum = bignum (64-bit)"
201 (eqv? -2305843009213693953 (1- -2305843009213693952))))
a580ebba 202
49579cbd
KR
203;;;
204;;; ash
205;;;
206
207(with-test-prefix "ash"
208
209 (pass-if "documented?"
210 (documented? ash))
211
212 (pass-if (eqv? 0 (ash 0 0)))
213 (pass-if (eqv? 0 (ash 0 1)))
214 (pass-if (eqv? 0 (ash 0 1000)))
215 (pass-if (eqv? 0 (ash 0 -1)))
216 (pass-if (eqv? 0 (ash 0 -1000)))
217
218 (pass-if (eqv? 1 (ash 1 0)))
219 (pass-if (eqv? 2 (ash 1 1)))
220 (pass-if (eqv? 340282366920938463463374607431768211456 (ash 1 128)))
221 (pass-if (eqv? 0 (ash 1 -1)))
222 (pass-if (eqv? 0 (ash 1 -1000)))
223
224 (pass-if (eqv? -1 (ash -1 0)))
225 (pass-if (eqv? -2 (ash -1 1)))
226 (pass-if (eqv? -340282366920938463463374607431768211456 (ash -1 128)))
227 (pass-if (eqv? -1 (ash -1 -1)))
228 (pass-if (eqv? -1 (ash -1 -1000)))
229
230 (pass-if (eqv? -3 (ash -3 0)))
231 (pass-if (eqv? -6 (ash -3 1)))
232 (pass-if (eqv? -1020847100762815390390123822295304634368 (ash -3 128)))
233 (pass-if (eqv? -2 (ash -3 -1)))
234 (pass-if (eqv? -1 (ash -3 -1000)))
235
236 (pass-if (eqv? -6 (ash -23 -2)))
237
238 (pass-if (eqv? most-positive-fixnum (ash most-positive-fixnum 0)))
239 (pass-if (eqv? (* 2 most-positive-fixnum) (ash most-positive-fixnum 1)))
240 (pass-if (eqv? (* 4 most-positive-fixnum) (ash most-positive-fixnum 2)))
241 (pass-if
242 (eqv? (* most-positive-fixnum 340282366920938463463374607431768211456)
243 (ash most-positive-fixnum 128)))
244 (pass-if (eqv? (quotient most-positive-fixnum 2)
245 (ash most-positive-fixnum -1)))
246 (pass-if (eqv? 0 (ash most-positive-fixnum -1000)))
247
248 (let ((mpf4 (quotient most-positive-fixnum 4)))
249 (pass-if (eqv? (* 2 mpf4) (ash mpf4 1)))
250 (pass-if (eqv? (* 4 mpf4) (ash mpf4 2)))
251 (pass-if (eqv? (* 8 mpf4) (ash mpf4 3))))
252
253 (pass-if (eqv? most-negative-fixnum (ash most-negative-fixnum 0)))
254 (pass-if (eqv? (* 2 most-negative-fixnum) (ash most-negative-fixnum 1)))
255 (pass-if (eqv? (* 4 most-negative-fixnum) (ash most-negative-fixnum 2)))
256 (pass-if
257 (eqv? (* most-negative-fixnum 340282366920938463463374607431768211456)
258 (ash most-negative-fixnum 128)))
259 (pass-if (eqv? (quotient-floor most-negative-fixnum 2)
260 (ash most-negative-fixnum -1)))
261 (pass-if (eqv? -1 (ash most-negative-fixnum -1000)))
262
263 (let ((mnf4 (quotient-floor most-negative-fixnum 4)))
264 (pass-if (eqv? (* 2 mnf4) (ash mnf4 1)))
265 (pass-if (eqv? (* 4 mnf4) (ash mnf4 2)))
266 (pass-if (eqv? (* 8 mnf4) (ash mnf4 3)))))
a1fb3b1c 267
de142bea
DH
268;;;
269;;; exact?
270;;;
271
272(with-test-prefix "exact?"
273
de142bea 274 (pass-if "documented?"
cb18f2a8 275 (documented? exact?))
de142bea 276
21e39e8f 277 (with-test-prefix "integers"
de142bea 278
21e39e8f
DH
279 (pass-if "0"
280 (exact? 0))
de142bea 281
21e39e8f
DH
282 (pass-if "fixnum-max"
283 (exact? fixnum-max))
de142bea 284
21e39e8f
DH
285 (pass-if "fixnum-max + 1"
286 (exact? (+ fixnum-max 1)))
de142bea 287
21e39e8f
DH
288 (pass-if "fixnum-min"
289 (exact? fixnum-min))
de142bea 290
21e39e8f
DH
291 (pass-if "fixnum-min - 1"
292 (exact? (- fixnum-min 1))))
293
294 (with-test-prefix "reals"
295
296 ;; (FIXME: need better examples.)
297
298 (pass-if "sqrt (fixnum-max^2 - 1)"
299 (eq? #f (exact? (sqrt (- (expt fixnum-max 2) 1)))))
300
301 (pass-if "sqrt ((fixnum-max+1)^2 - 1)"
41df63cf
MW
302 (eq? #f (exact? (sqrt (- (expt (+ fixnum-max 1) 2) 1)))))
303
304 (pass-if (not (exact? +inf.0)))
305 (pass-if (not (exact? -inf.0)))
306 (pass-if (not (exact? +nan.0)))))
de142bea 307
8ab3d8a0
KR
308;;;
309;;; exp
310;;;
311
312(with-test-prefix "exp"
2519490c 313 (pass-if (documented? exp))
8ab3d8a0
KR
314
315 (pass-if-exception "no args" exception:wrong-num-args
316 (exp))
317 (pass-if-exception "two args" exception:wrong-num-args
318 (exp 123 456))
319
320 (pass-if (eqv? 0.0 (exp -inf.0)))
321 (pass-if (eqv-loosely? 1.0 (exp 0)))
322 (pass-if (eqv-loosely? 1.0 (exp 0.0)))
323 (pass-if (eqv-loosely? const-e (exp 1.0)))
324 (pass-if (eqv-loosely? const-e^2 (exp 2.0)))
325 (pass-if (eqv-loosely? const-1/e (exp -1)))
326
327 (pass-if "exp(pi*i) = -1"
328 (eqv-loosely? -1.0 (exp 0+3.14159i)))
329 (pass-if "exp(-pi*i) = -1"
330 (eqv-loosely? -1.0 (exp 0-3.14159i)))
331 (pass-if "exp(2*pi*i) = +1"
332 (eqv-loosely? 1.0 (exp 0+6.28318i)))
333
334 (pass-if "exp(2-pi*i) = -e^2"
335 (eqv-loosely? (- const-e^2) (exp 2.0-3.14159i))))
336
de142bea
DH
337;;;
338;;; odd?
339;;;
340
7c24e528
RB
341(with-test-prefix "odd?"
342 (pass-if (documented? odd?))
343 (pass-if (odd? 1))
344 (pass-if (odd? -1))
4d332f19
DH
345 (pass-if (not (odd? 0)))
346 (pass-if (not (odd? 2)))
347 (pass-if (not (odd? -2)))
7c24e528 348 (pass-if (odd? (+ (* 2 fixnum-max) 1)))
4d332f19 349 (pass-if (not (odd? (* 2 fixnum-max))))
7c24e528 350 (pass-if (odd? (- (* 2 fixnum-min) 1)))
4d332f19 351 (pass-if (not (odd? (* 2 fixnum-min)))))
de142bea
DH
352
353;;;
354;;; even?
355;;;
356
7c24e528
RB
357(with-test-prefix "even?"
358 (pass-if (documented? even?))
359 (pass-if (even? 2))
360 (pass-if (even? -2))
361 (pass-if (even? 0))
4d332f19
DH
362 (pass-if (not (even? 1)))
363 (pass-if (not (even? -1)))
364 (pass-if (not (even? (+ (* 2 fixnum-max) 1))))
7c24e528 365 (pass-if (even? (* 2 fixnum-max)))
4d332f19 366 (pass-if (not (even? (- (* 2 fixnum-min) 1))))
7c24e528 367 (pass-if (even? (* 2 fixnum-min))))
de142bea 368
7112615f
MW
369;;;
370;;; finite?
371;;;
372
373(with-test-prefix "finite?"
374 (pass-if (documented? finite?))
375 (pass-if (not (finite? (inf))))
376 (pass-if (not (finite? +inf.0)))
377 (pass-if (not (finite? -inf.0)))
10391e06 378 (pass-if-exception
c9cf90d4 379 "complex numbers not in domain of finite?"
10391e06
AW
380 exception:wrong-type-arg
381 (finite? +inf.0+1i))
382 (pass-if-exception
c9cf90d4 383 "complex numbers not in domain of finite? (2)"
10391e06
AW
384 exception:wrong-type-arg
385 (finite? +1+inf.0i))
386 (pass-if-exception
c9cf90d4 387 "complex numbers not in domain of finite? (3)"
10391e06
AW
388 exception:wrong-type-arg
389 (finite? +1+1i))
390 (pass-if (finite? 3+0i))
7112615f
MW
391 (pass-if (not (finite? (nan))))
392 (pass-if (not (finite? +nan.0)))
7112615f
MW
393 (pass-if (finite? 0))
394 (pass-if (finite? 0.0))
395 (pass-if (finite? -0.0))
396 (pass-if (finite? 42.0))
397 (pass-if (finite? 1/2))
7112615f
MW
398 (pass-if (finite? (+ fixnum-max 1)))
399 (pass-if (finite? (- fixnum-min 1))))
400
de142bea 401;;;
7c24e528
RB
402;;; inf? and inf
403;;;
404
405(with-test-prefix "inf?"
406 (pass-if (documented? inf?))
407 (pass-if (inf? (inf)))
408 ;; FIXME: what are the expected behaviors?
409 ;; (pass-if (inf? (/ 1.0 0.0))
410 ;; (pass-if (inf? (/ 1 0.0))
10391e06 411 (pass-if-exception
c9cf90d4 412 "complex numbers not in domain of inf?"
10391e06
AW
413 exception:wrong-type-arg
414 (inf? +1+inf.0i))
415 (pass-if (inf? +inf.0+0i))
4d332f19
DH
416 (pass-if (not (inf? 0)))
417 (pass-if (not (inf? 42.0)))
418 (pass-if (not (inf? (+ fixnum-max 1))))
419 (pass-if (not (inf? (- fixnum-min 1)))))
7c24e528
RB
420
421;;;
422;;; nan? and nan
de142bea
DH
423;;;
424
7c24e528
RB
425(with-test-prefix "nan?"
426 (pass-if (documented? nan?))
427 (pass-if (nan? (nan)))
428 ;; FIXME: other ways we should be able to generate NaN?
4d332f19
DH
429 (pass-if (not (nan? 0)))
430 (pass-if (not (nan? 42.0)))
431 (pass-if (not (nan? (+ fixnum-max 1))))
432 (pass-if (not (nan? (- fixnum-min 1)))))
de142bea 433
7c24e528
RB
434;;;
435;;; abs
436;;;
437
438(with-test-prefix "abs"
439 (pass-if (documented? abs))
9b9ef10c
MW
440 (pass-if (eqv? 0 (abs 0)))
441 (pass-if (eqv? 1 (abs 1)))
442 (pass-if (eqv? 1 (abs -1)))
443
444 (with-test-prefix "double-negation of fixnum-min"
445 (pass-if (eqv? fixnum-min (- (abs fixnum-min)))))
446
447 (pass-if (eqv? (+ fixnum-max 1) (abs (+ fixnum-max 1))))
448 (pass-if (eqv? (+ (- fixnum-min) 1) (abs (- fixnum-min 1))))
449
450 (pass-if (eqv? 0.0 (abs 0.0)))
451 (pass-if (eqv? 0.0 (abs -0.0)))
452 (pass-if (eqv? 1.0 (abs 1.0)))
453 (pass-if (eqv? 1.0 (abs -1.0)))
454 (pass-if (real-nan? (abs +nan.0)))
455 (pass-if (eqv? +inf.0 (abs +inf.0)))
456 (pass-if (eqv? +inf.0 (abs -inf.0))))
76903a31 457
de142bea
DH
458;;;
459;;; quotient
460;;;
461
462(with-test-prefix "quotient"
2519490c 463 (pass-if (documented? quotient))
de142bea 464
de142bea
DH
465 (with-test-prefix "0 / n"
466
467 (pass-if "n = 1"
468 (eqv? 0 (quotient 0 1)))
469
470 (pass-if "n = -1"
471 (eqv? 0 (quotient 0 -1)))
472
21e39e8f
DH
473 (pass-if "n = 2"
474 (eqv? 0 (quotient 0 2)))
475
476 (pass-if "n = fixnum-max"
477 (eqv? 0 (quotient 0 fixnum-max)))
478
479 (pass-if "n = fixnum-max + 1"
480 (eqv? 0 (quotient 0 (+ fixnum-max 1))))
481
482 (pass-if "n = fixnum-min"
483 (eqv? 0 (quotient 0 fixnum-min)))
484
485 (pass-if "n = fixnum-min - 1"
486 (eqv? 0 (quotient 0 (- fixnum-min 1)))))
de142bea 487
21e39e8f 488 (with-test-prefix "1 / n"
de142bea
DH
489
490 (pass-if "n = 1"
491 (eqv? 1 (quotient 1 1)))
492
493 (pass-if "n = -1"
21e39e8f
DH
494 (eqv? -1 (quotient 1 -1)))
495
496 (pass-if "n = 2"
497 (eqv? 0 (quotient 1 2)))
de142bea 498
21e39e8f
DH
499 (pass-if "n = fixnum-max"
500 (eqv? 0 (quotient 1 fixnum-max)))
de142bea 501
21e39e8f
DH
502 (pass-if "n = fixnum-max + 1"
503 (eqv? 0 (quotient 1 (+ fixnum-max 1))))
de142bea 504
21e39e8f
DH
505 (pass-if "n = fixnum-min"
506 (eqv? 0 (quotient 1 fixnum-min)))
507
508 (pass-if "n = fixnum-min - 1"
509 (eqv? 0 (quotient 1 (- fixnum-min 1)))))
510
511 (with-test-prefix "-1 / n"
de142bea
DH
512
513 (pass-if "n = 1"
21e39e8f 514 (eqv? -1 (quotient -1 1)))
de142bea
DH
515
516 (pass-if "n = -1"
517 (eqv? 1 (quotient -1 -1)))
518
21e39e8f
DH
519 (pass-if "n = 2"
520 (eqv? 0 (quotient -1 2)))
521
522 (pass-if "n = fixnum-max"
523 (eqv? 0 (quotient -1 fixnum-max)))
524
525 (pass-if "n = fixnum-max + 1"
526 (eqv? 0 (quotient -1 (+ fixnum-max 1))))
527
528 (pass-if "n = fixnum-min"
529 (eqv? 0 (quotient -1 fixnum-min)))
530
531 (pass-if "n = fixnum-min - 1"
532 (eqv? 0 (quotient -1 (- fixnum-min 1)))))
533
534 (with-test-prefix "fixnum-max / n"
535
536 (pass-if "n = 1"
537 (eqv? fixnum-max (quotient fixnum-max 1)))
538
539 (pass-if "n = -1"
540 (eqv? (- fixnum-max) (quotient fixnum-max -1)))
541
542 (pass-if "n = 2"
543 (eqv? fixnum-max (+ (* (quotient fixnum-max 2) 2) 1)))
544
545 (pass-if "n = fixnum-max"
546 (eqv? 1 (quotient fixnum-max fixnum-max)))
547
548 (pass-if "n = fixnum-max + 1"
549 (eqv? 0 (quotient fixnum-max (+ fixnum-max 1))))
550
551 (pass-if "n = fixnum-min"
552 (eqv? 0 (quotient fixnum-max fixnum-min)))
553
554 (pass-if "n = fixnum-min - 1"
555 (eqv? 0 (quotient fixnum-max (- fixnum-min 1)))))
556
557 (with-test-prefix "(fixnum-max + 1) / n"
558
559 (pass-if "n = 1"
560 (eqv? (+ fixnum-max 1) (quotient (+ fixnum-max 1) 1)))
561
562 (pass-if "n = -1"
563 (eqv? (- (+ fixnum-max 1)) (quotient (+ fixnum-max 1) -1)))
564
565 (pass-if "n = 2"
566 (eqv? (+ fixnum-max 1) (* (quotient (+ fixnum-max 1) 2) 2)))
567
568 (pass-if "n = fixnum-max"
569 (eqv? 1 (quotient (+ fixnum-max 1) fixnum-max)))
570
571 (pass-if "n = fixnum-max + 1"
572 (eqv? 1 (quotient (+ fixnum-max 1) (+ fixnum-max 1))))
573
574 (pass-if "n = fixnum-min"
575 (eqv? -1 (quotient (+ fixnum-max 1) fixnum-min)))
576
577 (pass-if "n = fixnum-min - 1"
578 (eqv? 0 (quotient (+ fixnum-max 1) (- fixnum-min 1)))))
579
580 (with-test-prefix "fixnum-min / n"
581
582 (pass-if "n = 1"
583 (eqv? fixnum-min (quotient fixnum-min 1)))
584
585 (pass-if "n = -1"
586 (eqv? (- fixnum-min) (quotient fixnum-min -1)))
587
588 (pass-if "n = 2"
589 (eqv? fixnum-min (* (quotient fixnum-min 2) 2)))
590
591 (pass-if "n = fixnum-max"
592 (eqv? -1 (quotient fixnum-min fixnum-max)))
593
594 (pass-if "n = fixnum-max + 1"
595 (eqv? -1 (quotient fixnum-min (+ fixnum-max 1))))
596
597 (pass-if "n = fixnum-min"
598 (eqv? 1 (quotient fixnum-min fixnum-min)))
599
600 (pass-if "n = fixnum-min - 1"
ad22fe7c
KR
601 (eqv? 0 (quotient fixnum-min (- fixnum-min 1))))
602
603 (pass-if "n = - fixnum-min - 1"
604 (eqv? -1 (quotient fixnum-min (1- (- fixnum-min)))))
605
606 ;; special case, normally inum/big is zero
607 (pass-if "n = - fixnum-min"
608 (eqv? -1 (quotient fixnum-min (- fixnum-min))))
609
610 (pass-if "n = - fixnum-min + 1"
611 (eqv? 0 (quotient fixnum-min (1+ (- fixnum-min))))))
21e39e8f
DH
612
613 (with-test-prefix "(fixnum-min - 1) / n"
614
615 (pass-if "n = 1"
616 (eqv? (- fixnum-min 1) (quotient (- fixnum-min 1) 1)))
617
618 (pass-if "n = -1"
619 (eqv? (- (- fixnum-min 1)) (quotient (- fixnum-min 1) -1)))
620
621 (pass-if "n = 2"
622 (eqv? fixnum-min (* (quotient (- fixnum-min 1) 2) 2)))
623
624 (pass-if "n = fixnum-max"
625 (eqv? -1 (quotient (- fixnum-min 1) fixnum-max)))
626
627 (pass-if "n = fixnum-max + 1"
628 (eqv? -1 (quotient (- fixnum-min 1) (+ fixnum-max 1))))
629
630 (pass-if "n = fixnum-min"
631 (eqv? 1 (quotient (- fixnum-min 1) fixnum-min)))
632
633 (pass-if "n = fixnum-min - 1"
634 (eqv? 1 (quotient (- fixnum-min 1) (- fixnum-min 1)))))
de142bea
DH
635
636 ;; Positive dividend and divisor
637
638 (pass-if "35 / 7"
639 (eqv? 5 (quotient 35 7)))
640
641 ;; Negative dividend, positive divisor
642
643 (pass-if "-35 / 7"
644 (eqv? -5 (quotient -35 7)))
645
646 ;; Positive dividend, negative divisor
647
648 (pass-if "35 / -7"
649 (eqv? -5 (quotient 35 -7)))
650
651 ;; Negative dividend and divisor
652
653 (pass-if "-35 / -7"
654 (eqv? 5 (quotient -35 -7)))
655
656 ;; Are numerical overflows detected correctly?
657
80074d77
DH
658 (with-test-prefix "division by zero"
659
660 (pass-if-exception "(quotient 1 0)"
661 exception:numerical-overflow
662 (quotient 1 0))
663
664 (pass-if-exception "(quotient bignum 0)"
665 exception:numerical-overflow
666 (quotient (+ fixnum-max 1) 0)))
667
de142bea
DH
668 ;; Are wrong type arguments detected correctly?
669
670 )
671
672;;;
673;;; remainder
674;;;
675
676(with-test-prefix "remainder"
2519490c 677 (pass-if (documented? remainder))
de142bea 678
de142bea
DH
679 (with-test-prefix "0 / n"
680
681 (pass-if "n = 1"
682 (eqv? 0 (remainder 0 1)))
683
684 (pass-if "n = -1"
685 (eqv? 0 (remainder 0 -1)))
686
21e39e8f
DH
687 (pass-if "n = fixnum-max"
688 (eqv? 0 (remainder 0 fixnum-max)))
689
690 (pass-if "n = fixnum-max + 1"
691 (eqv? 0 (remainder 0 (+ fixnum-max 1))))
692
693 (pass-if "n = fixnum-min"
694 (eqv? 0 (remainder 0 fixnum-min)))
de142bea 695
21e39e8f
DH
696 (pass-if "n = fixnum-min - 1"
697 (eqv? 0 (remainder 0 (- fixnum-min 1)))))
de142bea 698
21e39e8f 699 (with-test-prefix "1 / n"
de142bea
DH
700
701 (pass-if "n = 1"
702 (eqv? 0 (remainder 1 1)))
703
704 (pass-if "n = -1"
21e39e8f
DH
705 (eqv? 0 (remainder 1 -1)))
706
707 (pass-if "n = fixnum-max"
708 (eqv? 1 (remainder 1 fixnum-max)))
de142bea 709
21e39e8f
DH
710 (pass-if "n = fixnum-max + 1"
711 (eqv? 1 (remainder 1 (+ fixnum-max 1))))
de142bea 712
21e39e8f
DH
713 (pass-if "n = fixnum-min"
714 (eqv? 1 (remainder 1 fixnum-min)))
de142bea 715
21e39e8f
DH
716 (pass-if "n = fixnum-min - 1"
717 (eqv? 1 (remainder 1 (- fixnum-min 1)))))
718
719 (with-test-prefix "-1 / n"
de142bea
DH
720
721 (pass-if "n = 1"
21e39e8f 722 (eqv? 0 (remainder -1 1)))
de142bea
DH
723
724 (pass-if "n = -1"
725 (eqv? 0 (remainder -1 -1)))
726
21e39e8f
DH
727 (pass-if "n = fixnum-max"
728 (eqv? -1 (remainder -1 fixnum-max)))
729
730 (pass-if "n = fixnum-max + 1"
731 (eqv? -1 (remainder -1 (+ fixnum-max 1))))
732
733 (pass-if "n = fixnum-min"
734 (eqv? -1 (remainder -1 fixnum-min)))
735
736 (pass-if "n = fixnum-min - 1"
737 (eqv? -1 (remainder -1 (- fixnum-min 1)))))
738
739 (with-test-prefix "fixnum-max / n"
740
741 (pass-if "n = 1"
742 (eqv? 0 (remainder fixnum-max 1)))
743
744 (pass-if "n = -1"
745 (eqv? 0 (remainder fixnum-max -1)))
746
747 (pass-if "n = fixnum-max"
748 (eqv? 0 (remainder fixnum-max fixnum-max)))
749
750 (pass-if "n = fixnum-max + 1"
751 (eqv? fixnum-max (remainder fixnum-max (+ fixnum-max 1))))
752
753 (pass-if "n = fixnum-min"
754 (eqv? fixnum-max (remainder fixnum-max fixnum-min)))
755
756 (pass-if "n = fixnum-min - 1"
757 (eqv? fixnum-max (remainder fixnum-max (- fixnum-min 1)))))
758
759 (with-test-prefix "(fixnum-max + 1) / n"
760
761 (pass-if "n = 1"
762 (eqv? 0 (remainder (+ fixnum-max 1) 1)))
763
764 (pass-if "n = -1"
765 (eqv? 0 (remainder (+ fixnum-max 1) -1)))
766
767 (pass-if "n = fixnum-max"
768 (eqv? 1 (remainder (+ fixnum-max 1) fixnum-max)))
769
770 (pass-if "n = fixnum-max + 1"
771 (eqv? 0 (remainder (+ fixnum-max 1) (+ fixnum-max 1))))
772
773 (pass-if "n = fixnum-min"
774 (eqv? 0 (remainder (+ fixnum-max 1) fixnum-min)))
775
776 (pass-if "n = fixnum-min - 1"
777 (eqv? (+ fixnum-max 1) (remainder (+ fixnum-max 1) (- fixnum-min 1)))))
778
779 (with-test-prefix "fixnum-min / n"
780
781 (pass-if "n = 1"
782 (eqv? 0 (remainder fixnum-min 1)))
783
784 (pass-if "n = -1"
785 (eqv? 0 (remainder fixnum-min -1)))
786
787 (pass-if "n = fixnum-max"
788 (eqv? -1 (remainder fixnum-min fixnum-max)))
789
790 (pass-if "n = fixnum-max + 1"
791 (eqv? 0 (remainder fixnum-min (+ fixnum-max 1))))
792
793 (pass-if "n = fixnum-min"
794 (eqv? 0 (remainder fixnum-min fixnum-min)))
795
796 (pass-if "n = fixnum-min - 1"
ad22fe7c
KR
797 (eqv? fixnum-min (remainder fixnum-min (- fixnum-min 1))))
798
799 (pass-if "n = - fixnum-min - 1"
800 (eqv? -1 (remainder fixnum-min (1- (- fixnum-min)))))
801
802 ;; special case, normally inum%big is the inum
803 (pass-if "n = - fixnum-min"
804 (eqv? 0 (remainder fixnum-min (- fixnum-min))))
805
806 (pass-if "n = - fixnum-min + 1"
807 (eqv? fixnum-min (remainder fixnum-min (1+ (- fixnum-min))))))
21e39e8f
DH
808
809 (with-test-prefix "(fixnum-min - 1) / n"
810
811 (pass-if "n = 1"
812 (eqv? 0 (remainder (- fixnum-min 1) 1)))
813
814 (pass-if "n = -1"
815 (eqv? 0 (remainder (- fixnum-min 1) -1)))
816
817 (pass-if "n = fixnum-max"
818 (eqv? -2 (remainder (- fixnum-min 1) fixnum-max)))
819
820 (pass-if "n = fixnum-max + 1"
821 (eqv? -1 (remainder (- fixnum-min 1) (+ fixnum-max 1))))
822
823 (pass-if "n = fixnum-min"
824 (eqv? -1 (remainder (- fixnum-min 1) fixnum-min)))
825
826 (pass-if "n = fixnum-min - 1"
827 (eqv? 0 (remainder (- fixnum-min 1) (- fixnum-min 1)))))
de142bea
DH
828
829 ;; Positive dividend and divisor
830
831 (pass-if "35 / 7"
832 (eqv? 0 (remainder 35 7)))
833
834 ;; Negative dividend, positive divisor
835
836 (pass-if "-35 / 7"
837 (eqv? 0 (remainder -35 7)))
838
839 ;; Positive dividend, negative divisor
840
841 (pass-if "35 / -7"
842 (eqv? 0 (remainder 35 -7)))
843
844 ;; Negative dividend and divisor
845
846 (pass-if "-35 / -7"
847 (eqv? 0 (remainder -35 -7)))
848
849 ;; Are numerical overflows detected correctly?
850
80074d77
DH
851 (with-test-prefix "division by zero"
852
853 (pass-if-exception "(remainder 1 0)"
854 exception:numerical-overflow
855 (remainder 1 0))
856
857 (pass-if-exception "(remainder bignum 0)"
858 exception:numerical-overflow
859 (remainder (+ fixnum-max 1) 0)))
860
de142bea
DH
861 ;; Are wrong type arguments detected correctly?
862
863 )
864
865;;;
866;;; modulo
867;;;
868
869(with-test-prefix "modulo"
2519490c 870 (pass-if (documented? modulo))
de142bea 871
de142bea
DH
872 (with-test-prefix "0 % n"
873
874 (pass-if "n = 1"
875 (eqv? 0 (modulo 0 1)))
876
877 (pass-if "n = -1"
878 (eqv? 0 (modulo 0 -1)))
879
21e39e8f
DH
880 (pass-if "n = fixnum-max"
881 (eqv? 0 (modulo 0 fixnum-max)))
882
883 (pass-if "n = fixnum-max + 1"
884 (eqv? 0 (modulo 0 (+ fixnum-max 1))))
de142bea 885
21e39e8f
DH
886 (pass-if "n = fixnum-min"
887 (eqv? 0 (modulo 0 fixnum-min)))
de142bea 888
21e39e8f
DH
889 (pass-if "n = fixnum-min - 1"
890 (eqv? 0 (modulo 0 (- fixnum-min 1)))))
891
892 (with-test-prefix "1 % n"
de142bea
DH
893
894 (pass-if "n = 1"
895 (eqv? 0 (modulo 1 1)))
896
897 (pass-if "n = -1"
21e39e8f 898 (eqv? 0 (modulo 1 -1)))
de142bea 899
21e39e8f
DH
900 (pass-if "n = fixnum-max"
901 (eqv? 1 (modulo 1 fixnum-max)))
de142bea 902
21e39e8f
DH
903 (pass-if "n = fixnum-max + 1"
904 (eqv? 1 (modulo 1 (+ fixnum-max 1))))
de142bea 905
21e39e8f
DH
906 (pass-if "n = fixnum-min"
907 (eqv? (+ fixnum-min 1) (modulo 1 fixnum-min)))
908
909 (pass-if "n = fixnum-min - 1"
910 (eqv? fixnum-min (modulo 1 (- fixnum-min 1)))))
911
912 (with-test-prefix "-1 % n"
de142bea
DH
913
914 (pass-if "n = 1"
21e39e8f 915 (eqv? 0 (modulo -1 1)))
de142bea
DH
916
917 (pass-if "n = -1"
918 (eqv? 0 (modulo -1 -1)))
919
21e39e8f
DH
920 (pass-if "n = fixnum-max"
921 (eqv? (- fixnum-max 1) (modulo -1 fixnum-max)))
922
923 (pass-if "n = fixnum-max + 1"
924 (eqv? fixnum-max (modulo -1 (+ fixnum-max 1))))
925
926 (pass-if "n = fixnum-min"
927 (eqv? -1 (modulo -1 fixnum-min)))
928
929 (pass-if "n = fixnum-min - 1"
930 (eqv? -1 (modulo -1 (- fixnum-min 1)))))
931
932 (with-test-prefix "fixnum-max % n"
933
934 (pass-if "n = 1"
935 (eqv? 0 (modulo fixnum-max 1)))
936
937 (pass-if "n = -1"
938 (eqv? 0 (modulo fixnum-max -1)))
939
940 (pass-if "n = fixnum-max"
941 (eqv? 0 (modulo fixnum-max fixnum-max)))
942
943 (pass-if "n = fixnum-max + 1"
944 (eqv? fixnum-max (modulo fixnum-max (+ fixnum-max 1))))
945
946 (pass-if "n = fixnum-min"
947 (eqv? -1 (modulo fixnum-max fixnum-min)))
948
949 (pass-if "n = fixnum-min - 1"
950 (eqv? -2 (modulo fixnum-max (- fixnum-min 1)))))
951
952 (with-test-prefix "(fixnum-max + 1) % n"
953
954 (pass-if "n = 1"
955 (eqv? 0 (modulo (+ fixnum-max 1) 1)))
956
957 (pass-if "n = -1"
958 (eqv? 0 (modulo (+ fixnum-max 1) -1)))
959
960 (pass-if "n = fixnum-max"
961 (eqv? 1 (modulo (+ fixnum-max 1) fixnum-max)))
962
963 (pass-if "n = fixnum-max + 1"
964 (eqv? 0 (modulo (+ fixnum-max 1) (+ fixnum-max 1))))
965
966 (pass-if "n = fixnum-min"
967 (eqv? 0 (modulo (+ fixnum-max 1) fixnum-min)))
968
969 (pass-if "n = fixnum-min - 1"
970 (eqv? -1 (modulo (+ fixnum-max 1) (- fixnum-min 1)))))
971
972 (with-test-prefix "fixnum-min % n"
973
974 (pass-if "n = 1"
975 (eqv? 0 (modulo fixnum-min 1)))
976
977 (pass-if "n = -1"
978 (eqv? 0 (modulo fixnum-min -1)))
979
980 (pass-if "n = fixnum-max"
981 (eqv? (- fixnum-max 1) (modulo fixnum-min fixnum-max)))
982
983 (pass-if "n = fixnum-max + 1"
984 (eqv? 0 (modulo fixnum-min (+ fixnum-max 1))))
985
986 (pass-if "n = fixnum-min"
987 (eqv? 0 (modulo fixnum-min fixnum-min)))
988
989 (pass-if "n = fixnum-min - 1"
990 (eqv? fixnum-min (modulo fixnum-min (- fixnum-min 1)))))
991
992 (with-test-prefix "(fixnum-min - 1) % n"
993
994 (pass-if "n = 1"
995 (eqv? 0 (modulo (- fixnum-min 1) 1)))
996
997 (pass-if "n = -1"
998 (eqv? 0 (modulo (- fixnum-min 1) -1)))
999
1000 (pass-if "n = fixnum-max"
1001 (eqv? (- fixnum-max 2) (modulo (- fixnum-min 1) fixnum-max)))
1002
1003 (pass-if "n = fixnum-max + 1"
1004 (eqv? fixnum-max (modulo (- fixnum-min 1) (+ fixnum-max 1))))
1005
1006 (pass-if "n = fixnum-min"
1007 (eqv? -1 (modulo (- fixnum-min 1) fixnum-min)))
1008
1009 (pass-if "n = fixnum-min - 1"
1010 (eqv? 0 (modulo (- fixnum-min 1) (- fixnum-min 1)))))
de142bea
DH
1011
1012 ;; Positive dividend and divisor
1013
1014 (pass-if "13 % 4"
1015 (eqv? 1 (modulo 13 4)))
1016
1017 (pass-if "2177452800 % 86400"
1018 (eqv? 0 (modulo 2177452800 86400)))
1019
1020 ;; Negative dividend, positive divisor
1021
1022 (pass-if "-13 % 4"
1023 (eqv? 3 (modulo -13 4)))
1024
1025 (pass-if "-2177452800 % 86400"
1026 (eqv? 0 (modulo -2177452800 86400)))
1027
1028 ;; Positive dividend, negative divisor
1029
1030 (pass-if "13 % -4"
1031 (eqv? -3 (modulo 13 -4)))
1032
1033 (pass-if "2177452800 % -86400"
1034 (eqv? 0 (modulo 2177452800 -86400)))
1035
1036 ;; Negative dividend and divisor
1037
1038 (pass-if "-13 % -4"
1039 (eqv? -1 (modulo -13 -4)))
1040
1041 (pass-if "-2177452800 % -86400"
1042 (eqv? 0 (modulo -2177452800 -86400)))
1043
1044 ;; Are numerical overflows detected correctly?
1045
80074d77
DH
1046 (with-test-prefix "division by zero"
1047
1048 (pass-if-exception "(modulo 1 0)"
1049 exception:numerical-overflow
1050 (modulo 1 0))
1051
1052 (pass-if-exception "(modulo bignum 0)"
1053 exception:numerical-overflow
1054 (modulo (+ fixnum-max 1) 0)))
1055
de142bea
DH
1056 ;; Are wrong type arguments detected correctly?
1057
1058 )
1059
24360e11
KR
1060;;;
1061;;; modulo-expt
1062;;;
1063
1064(with-test-prefix "modulo-expt"
1065 (pass-if (= 1 (modulo-expt 17 23 47)))
1066
1067 (pass-if (= 1 (modulo-expt 17 -23 47)))
1068
1069 (pass-if (= 17 (modulo-expt 17 -22 47)))
1070
1071 (pass-if (= 36 (modulo-expt 17 22 47)))
1072
1073 (pass-if (= 183658794479969134816674175082294846241553725240 (modulo-expt 111122223333444455556666 111122223333444455556666 1153478690012629968439432872520758982731022934717)))
1074
1075 (pass-if-exception
1076 "Proper exception with 0 modulus"
18ee5de9 1077 exception:numerical-overflow
24360e11
KR
1078 (modulo-expt 17 23 0))
1079
1080 (pass-if-exception
1081 "Proper exception when result not invertible"
18ee5de9 1082 exception:numerical-overflow
24360e11
KR
1083 (modulo-expt 10 -1 48))
1084
1085 (pass-if-exception
1086 "Proper exception with wrong type argument"
18ee5de9 1087 exception:wrong-type-arg
24360e11
KR
1088 (modulo-expt "Sam" 23 10))
1089
1090 (pass-if-exception
1091 "Proper exception with wrong type argument"
18ee5de9 1092 exception:wrong-type-arg
24360e11
KR
1093 (modulo-expt 17 9.9 10))
1094
1095 (pass-if-exception
1096 "Proper exception with wrong type argument"
18ee5de9 1097 exception:wrong-type-arg
24360e11
KR
1098 (modulo-expt 17 23 'Ethel)))
1099
ba46895c
KR
1100;;;
1101;;; numerator
1102;;;
1103
1104(with-test-prefix "numerator"
1105 (pass-if "0"
1106 (eqv? 0 (numerator 0)))
1107 (pass-if "1"
1108 (eqv? 1 (numerator 1)))
1109 (pass-if "2"
1110 (eqv? 2 (numerator 2)))
1111 (pass-if "-1"
1112 (eqv? -1 (numerator -1)))
1113 (pass-if "-2"
1114 (eqv? -2 (numerator -2)))
1115
1116 (pass-if "0.0"
1117 (eqv? 0.0 (numerator 0.0)))
1118 (pass-if "1.0"
1119 (eqv? 1.0 (numerator 1.0)))
1120 (pass-if "2.0"
1121 (eqv? 2.0 (numerator 2.0)))
1122 (pass-if "-1.0"
1123 (eqv? -1.0 (numerator -1.0)))
1124 (pass-if "-2.0"
1125 (eqv? -2.0 (numerator -2.0)))
1126
1127 (pass-if "0.5"
1128 (eqv? 1.0 (numerator 0.5)))
1129 (pass-if "0.25"
1130 (eqv? 1.0 (numerator 0.25)))
1131 (pass-if "0.75"
1132 (eqv? 3.0 (numerator 0.75))))
1133
1134;;;
1135;;; denominator
1136;;;
1137
1138(with-test-prefix "denominator"
1139 (pass-if "0"
1140 (eqv? 1 (denominator 0)))
1141 (pass-if "1"
1142 (eqv? 1 (denominator 1)))
1143 (pass-if "2"
1144 (eqv? 1 (denominator 2)))
1145 (pass-if "-1"
1146 (eqv? 1 (denominator -1)))
1147 (pass-if "-2"
1148 (eqv? 1 (denominator -2)))
1149
1150 (pass-if "0.0"
1151 (eqv? 1.0 (denominator 0.0)))
1152 (pass-if "1.0"
1153 (eqv? 1.0 (denominator 1.0)))
1154 (pass-if "2.0"
1155 (eqv? 1.0 (denominator 2.0)))
1156 (pass-if "-1.0"
1157 (eqv? 1.0 (denominator -1.0)))
1158 (pass-if "-2.0"
1159 (eqv? 1.0 (denominator -2.0)))
1160
1161 (pass-if "0.5"
1162 (eqv? 2.0 (denominator 0.5)))
1163 (pass-if "0.25"
1164 (eqv? 4.0 (denominator 0.25)))
1165 (pass-if "0.75"
1166 (eqv? 4.0 (denominator 0.75))))
1167
de142bea
DH
1168;;;
1169;;; gcd
1170;;;
1171
1172(with-test-prefix "gcd"
1173
d389e966 1174 (pass-if "documented?"
cb18f2a8 1175 (documented? gcd))
de142bea 1176
1dd79792
NJ
1177 (with-test-prefix "(n)"
1178
1179 (pass-if "n = -2"
1180 (eqv? 2 (gcd -2))))
1181
de142bea
DH
1182 (with-test-prefix "(0 n)"
1183
21e39e8f
DH
1184 (pass-if "n = 0"
1185 (eqv? 0 (gcd 0 0)))
1186
de142bea
DH
1187 (pass-if "n = 1"
1188 (eqv? 1 (gcd 0 1)))
1189
1190 (pass-if "n = -1"
1191 (eqv? 1 (gcd 0 -1)))
1192
21e39e8f
DH
1193 (pass-if "n = fixnum-max"
1194 (eqv? fixnum-max (gcd 0 fixnum-max)))
de142bea 1195
21e39e8f
DH
1196 (pass-if "n = fixnum-max + 1"
1197 (eqv? (+ fixnum-max 1) (gcd 0 (+ fixnum-max 1))))
de142bea 1198
21e39e8f
DH
1199 (pass-if "n = fixnum-min"
1200 (eqv? (- fixnum-min) (gcd 0 fixnum-min)))
de142bea 1201
21e39e8f
DH
1202 (pass-if "n = fixnum-min - 1"
1203 (eqv? (- (- fixnum-min 1)) (gcd 0 (- fixnum-min 1)))))
1204
db386f80
KR
1205 (with-test-prefix "(n 0)"
1206
1207 (pass-if "n = 2^128 * fixnum-max"
1208 (eqv? (ash fixnum-max 128) (gcd (ash fixnum-max 128) 0))))
1209
21e39e8f
DH
1210 (with-test-prefix "(1 n)"
1211
1212 (pass-if "n = 0"
de142bea
DH
1213 (eqv? 1 (gcd 1 0)))
1214
21e39e8f
DH
1215 (pass-if "n = 1"
1216 (eqv? 1 (gcd 1 1)))
1217
de142bea 1218 (pass-if "n = -1"
21e39e8f
DH
1219 (eqv? 1 (gcd 1 -1)))
1220
1221 (pass-if "n = fixnum-max"
1222 (eqv? 1 (gcd 1 fixnum-max)))
1223
1224 (pass-if "n = fixnum-max + 1"
1225 (eqv? 1 (gcd 1 (+ fixnum-max 1))))
1226
1227 (pass-if "n = fixnum-min"
1228 (eqv? 1 (gcd 1 fixnum-min)))
1229
1230 (pass-if "n = fixnum-min - 1"
1231 (eqv? 1 (gcd 1 (- fixnum-min 1)))))
1232
1233 (with-test-prefix "(-1 n)"
1234
1235 (pass-if "n = 0"
de142bea
DH
1236 (eqv? 1 (gcd -1 0)))
1237
21e39e8f
DH
1238 (pass-if "n = 1"
1239 (eqv? 1 (gcd -1 1)))
de142bea 1240
21e39e8f
DH
1241 (pass-if "n = -1"
1242 (eqv? 1 (gcd -1 -1)))
de142bea 1243
21e39e8f
DH
1244 (pass-if "n = fixnum-max"
1245 (eqv? 1 (gcd -1 fixnum-max)))
1246
1247 (pass-if "n = fixnum-max + 1"
1248 (eqv? 1 (gcd -1 (+ fixnum-max 1))))
1249
1250 (pass-if "n = fixnum-min"
1251 (eqv? 1 (gcd -1 fixnum-min)))
1252
1253 (pass-if "n = fixnum-min - 1"
1254 (eqv? 1 (gcd -1 (- fixnum-min 1)))))
1255
1256 (with-test-prefix "(fixnum-max n)"
1257
1258 (pass-if "n = 0"
1259 (eqv? fixnum-max (gcd fixnum-max 0)))
de142bea
DH
1260
1261 (pass-if "n = 1"
21e39e8f 1262 (eqv? 1 (gcd fixnum-max 1)))
de142bea
DH
1263
1264 (pass-if "n = -1"
21e39e8f
DH
1265 (eqv? 1 (gcd fixnum-max -1)))
1266
1267 (pass-if "n = fixnum-max"
1268 (eqv? fixnum-max (gcd fixnum-max fixnum-max)))
de142bea 1269
21e39e8f
DH
1270 (pass-if "n = fixnum-max + 1"
1271 (eqv? 1 (gcd fixnum-max (+ fixnum-max 1))))
de142bea 1272
21e39e8f
DH
1273 (pass-if "n = fixnum-min"
1274 (eqv? 1 (gcd fixnum-max fixnum-min)))
de142bea 1275
21e39e8f
DH
1276 (pass-if "n = fixnum-min - 1"
1277 (eqv? 1 (gcd fixnum-max (- fixnum-min 1)))))
1278
1279 (with-test-prefix "((+ fixnum-max 1) n)"
1280
1281 (pass-if "n = 0"
1282 (eqv? (+ fixnum-max 1) (gcd (+ fixnum-max 1) 0)))
1283
1284 (pass-if "n = 1"
1285 (eqv? 1 (gcd (+ fixnum-max 1) 1)))
de142bea
DH
1286
1287 (pass-if "n = -1"
21e39e8f 1288 (eqv? 1 (gcd (+ fixnum-max 1) -1)))
de142bea 1289
21e39e8f
DH
1290 (pass-if "n = fixnum-max"
1291 (eqv? 1 (gcd (+ fixnum-max 1) fixnum-max)))
de142bea 1292
21e39e8f
DH
1293 (pass-if "n = fixnum-max + 1"
1294 (eqv? (+ fixnum-max 1) (gcd (+ fixnum-max 1) (+ fixnum-max 1))))
de142bea 1295
21e39e8f
DH
1296 (pass-if "n = fixnum-min"
1297 (eqv? (+ fixnum-max 1) (gcd (+ fixnum-max 1) fixnum-min)))
1298
1299 (pass-if "n = fixnum-min - 1"
1300 (eqv? 1 (gcd (+ fixnum-max 1) (- fixnum-min 1)))))
1301
1302 (with-test-prefix "(fixnum-min n)"
1303
1304 (pass-if "n = 0"
1305 (eqv? (- fixnum-min) (gcd fixnum-min 0)))
1306
1307 (pass-if "n = 1"
1308 (eqv? 1 (gcd fixnum-min 1)))
de142bea
DH
1309
1310 (pass-if "n = -1"
21e39e8f
DH
1311 (eqv? 1 (gcd fixnum-min -1)))
1312
1313 (pass-if "n = fixnum-max"
1314 (eqv? 1 (gcd fixnum-min fixnum-max)))
1315
1316 (pass-if "n = fixnum-max + 1"
1317 (eqv? (+ fixnum-max 1) (gcd fixnum-min (+ fixnum-max 1))))
de142bea 1318
21e39e8f
DH
1319 (pass-if "n = fixnum-min"
1320 (eqv? (- fixnum-min) (gcd fixnum-min fixnum-min)))
1321
1322 (pass-if "n = fixnum-min - 1"
1323 (eqv? 1 (gcd fixnum-min (- fixnum-min 1)))))
1324
1325 (with-test-prefix "((- fixnum-min 1) n)"
1326
1327 (pass-if "n = 0"
1328 (eqv? (- (- fixnum-min 1)) (gcd (- fixnum-min 1) 0)))
1329
1330 (pass-if "n = 1"
1331 (eqv? 1 (gcd (- fixnum-min 1) 1)))
1332
1333 (pass-if "n = -1"
1334 (eqv? 1 (gcd (- fixnum-min 1) -1)))
1335
1336 (pass-if "n = fixnum-max"
1337 (eqv? 1 (gcd (- fixnum-min 1) fixnum-max)))
1338
1339 (pass-if "n = fixnum-max + 1"
1340 (eqv? 1 (gcd (- fixnum-min 1) (+ fixnum-max 1))))
1341
1342 (pass-if "n = fixnum-min"
1343 (eqv? 1 (gcd (- fixnum-min 1) fixnum-min)))
1344
1345 (pass-if "n = fixnum-min - 1"
1346 (eqv? (- (- fixnum-min 1)) (gcd (- fixnum-min 1) (- fixnum-min 1)))))
de142bea
DH
1347
1348 ;; Are wrong type arguments detected correctly?
1349
1350 )
1351
f29b3454
DH
1352;;;
1353;;; lcm
1354;;;
1355
7c24e528
RB
1356(with-test-prefix "lcm"
1357 ;; FIXME: more tests?
1358 ;; (some of these are already in r4rs.test)
d389e966 1359 (pass-if (documented? lcm))
7c24e528
RB
1360 (pass-if (= (lcm) 1))
1361 (pass-if (= (lcm 32 -36) 288))
1362 (let ((big-n 115792089237316195423570985008687907853269984665640564039457584007913129639936) ; 2 ^ 256
1363 (lcm-of-big-n-and-11 1273712981610478149659280835095566986385969831322046204434033424087044426039296))
1364 (pass-if (= lcm-of-big-n-and-11 (lcm big-n 11)))
1365 (pass-if (= lcm-of-big-n-and-11 (lcm 11 big-n 11)))))
1366
605f6980
MW
1367;;;
1368;;; rationalize
1369;;;
1370(with-test-prefix "rationalize"
1371 (pass-if (documented? rationalize))
1372 (pass-if (eqv? 2 (rationalize 4 2 )))
1373 (pass-if (eqv? -2 (rationalize -4 2 )))
1374 (pass-if (eqv? 2.0 (rationalize 4 2.0)))
1375 (pass-if (eqv? -2.0 (rationalize -4.0 2 )))
1376
1377 (pass-if (eqv? 0 (rationalize 4 8 )))
1378 (pass-if (eqv? 0 (rationalize -4 8 )))
1379 (pass-if (eqv? 0.0 (rationalize 4 8.0)))
1380 (pass-if (eqv? 0.0 (rationalize -4.0 8 )))
1381
1382 (pass-if (eqv? 0.0 (rationalize 3 +inf.0)))
1383 (pass-if (eqv? 0.0 (rationalize -3 +inf.0)))
1384
55a8b708
MW
1385 (pass-if (real-nan? (rationalize +inf.0 +inf.0)))
1386 (pass-if (real-nan? (rationalize +nan.0 +inf.0)))
1387 (pass-if (real-nan? (rationalize +nan.0 4)))
605f6980
MW
1388 (pass-if (eqv? +inf.0 (rationalize +inf.0 3)))
1389
1390 (pass-if (eqv? 3/10 (rationalize 3/10 0)))
1391 (pass-if (eqv? -3/10 (rationalize -3/10 0)))
1392
1393 (pass-if (eqv? 1/3 (rationalize 3/10 1/10)))
1394 (pass-if (eqv? -1/3 (rationalize -3/10 1/10)))
1395
1396 (pass-if (eqv? 1/3 (rationalize 3/10 -1/10)))
1397 (pass-if (eqv? -1/3 (rationalize -3/10 -1/10)))
1398
1399 (pass-if (test-eqv? (/ 1.0 3) (rationalize 0.3 1/10)))
1400 (pass-if (test-eqv? (/ -1.0 3) (rationalize -0.3 1/10)))
1401 (pass-if (test-eqv? (/ 1.0 3) (rationalize 0.3 -1/10)))
1402 (pass-if (test-eqv? (/ -1.0 3) (rationalize -0.3 -1/10))))
1403
f29b3454
DH
1404;;;
1405;;; number->string
1406;;;
1407
7c24e528
RB
1408(with-test-prefix "number->string"
1409 (let ((num->str->num
1410 (lambda (n radix)
1411 (string->number (number->string n radix) radix))))
1412
1413 (pass-if (documented? number->string))
1414 (pass-if (string=? (number->string 0) "0"))
1415 (pass-if (string=? (number->string 171) "171"))
1416 (pass-if (= (+ fixnum-max 1) (num->str->num (+ fixnum-max 1) 10)))
1417 (pass-if (= (- fixnum-min 1) (num->str->num (- fixnum-min 1) 10)))
1418 (pass-if (= (inf) (num->str->num (inf) 10)))
d39a7b58
MV
1419 (pass-if (= 1.3 (num->str->num 1.3 10)))
1420
eb73f94b
MV
1421 ;; XXX - some results depend on whether Guile is compiled optimzed
1422 ;; or not. It is clearly undesirable to have number->string to be
1423 ;; influenced by this.
1424
3740c788 1425 (pass-if (string=? (number->string 35.25 36) "z.9"))
eb73f94b
MV
1426 (pass-if (or (string=? (number->string 0.25 2) "0.01")
1427 (string=? (number->string 0.25 2) "0.010")))
3740c788 1428 (pass-if (string=? (number->string 255.0625 16) "ff.1"))
d39a7b58 1429 (pass-if (string=? (number->string (/ 1 3) 3) "1/10"))
23f2b9a3 1430
a6f3af16 1431 (pass-if (string=? (number->string 10) "10"))
3740c788 1432 (pass-if (string=? (number->string 10 11) "a"))
a6f3af16
AW
1433 (pass-if (string=? (number->string 36 36) "10"))
1434 (pass-if (= (num->str->num 36 36) 36))
1435 (pass-if (= (string->number "z" 36) 35))
1436 (pass-if (= (string->number "Z" 36) 35))
1437 (pass-if (not (string->number "Z" 35)))
3740c788 1438 (pass-if (string=? (number->string 35 36) "z"))
a6f3af16
AW
1439 (pass-if (= (num->str->num 35 36) 35))
1440
23f2b9a3
KR
1441 ;; Numeric conversion from decimal is not precise, in its current
1442 ;; implementation, so 11.333... and 1.324... can't be expected to
1443 ;; reliably come out to precise values. These tests did actually work
1444 ;; for a while, but something in gcc changed, affecting the conversion
1445 ;; code.
1446 ;;
1447 ;; (pass-if (or (string=? (number->string 11.33333333333333333 12)
1448 ;; "B.4")
1449 ;; (string=? (number->string 11.33333333333333333 12)
1450 ;; "B.400000000000009")))
1451 ;; (pass-if (or (string=? (number->string 1.324e44 16)
1452 ;; "5.EFE0A14FAFEe24")
1453 ;; (string=? (number->string 1.324e44 16)
1454 ;; "5.EFE0A14FAFDF8e24")))
1455 ))
7c24e528 1456
f29b3454
DH
1457;;;
1458;;; string->number
1459;;;
1460
2f4a254a
DH
1461(with-test-prefix "string->number"
1462
ff758237 1463 (pass-if "documented?"
2f4a254a
DH
1464 (documented? string->number))
1465
1466 (pass-if "non number strings"
1467 (for-each (lambda (x) (if (string->number x) (throw 'fail)))
569c483b 1468 '("" "q" "1q" "6+7iq" "8+9q" "10+11" "13+" "18@19q" "20@q" "23@"
2f4a254a 1469 "+25iq" "26i" "-q" "-iq" "i" "5#.0" "8/" "10#11" ".#" "."
569c483b 1470 "#o.2" "3.4q" "15.16e17q" "18.19e+q" ".q" ".17#18" "10q" "#b2"
2f4a254a
DH
1471 "#b3" "#b4" "#b5" "#b6" "#b7" "#b8" "#b9" "#ba" "#bb" "#bc"
1472 "#bd" "#be" "#bf" "#q" "#b#b1" "#o#o1" "#d#d1" "#x#x1" "#e#e1"
1473 "#i#i1" "12@12+0i"))
1474 #t)
1475
b7d9b1cf
DH
1476 (pass-if "valid number strings"
1477 (for-each (lambda (couple)
1478 (apply
1479 (lambda (x y)
9dd9857f
MV
1480 (let ((xx (string->number x)))
1481 (if (or (eq? xx #f) (not (eqv? xx y)))
ca2b31fe
MV
1482 (begin
1483 (pk x y)
1484 (throw 'fail)))))
b7d9b1cf
DH
1485 couple))
1486 `(;; Radix:
1487 ("#b0" 0) ("#B0" 0) ("#b1" 1) ("#B1" 1) ("#o0" 0) ("#O0" 0)
1488 ("#o1" 1) ("#O1" 1) ("#o2" 2) ("#O2" 2) ("#o3" 3) ("#O3" 3)
1489 ("#o4" 4) ("#O4" 4) ("#o5" 5) ("#O5" 5) ("#o6" 6) ("#O6" 6)
1490 ("#o7" 7) ("#O7" 7) ("#d0" 0) ("#D0" 0) ("#d1" 1) ("#D1" 1)
1491 ("#d2" 2) ("#D2" 2) ("#d3" 3) ("#D3" 3) ("#d4" 4) ("#D4" 4)
1492 ("#d5" 5) ("#D5" 5) ("#d6" 6) ("#D6" 6) ("#d7" 7) ("#D7" 7)
1493 ("#d8" 8) ("#D8" 8) ("#d9" 9) ("#D9" 9)
1494 ("#xa" 10) ("#Xa" 10) ("#xb" 11) ("#Xb" 11)
1495 ("#xc" 12) ("#Xc" 12) ("#xd" 13) ("#Xd" 13)
1496 ("#xe" 14) ("#Xe" 14) ("#xf" 15) ("#Xf" 15)
1497 ("#b1010" 10)
1498 ("#o12345670" 2739128)
1499 ("#d1234567890" 1234567890)
1500 ("#x1234567890abcdef" 1311768467294899695)
1501 ;; Exactness:
ca2b31fe 1502 ("#e1" 1) ("#e1.2" 12/10)
9dd9857f 1503 ("#i1.1" 1.1) ("#i1" 1.0)
b7d9b1cf
DH
1504 ;; Integers:
1505 ("1" ,(1+ 0)) ("23" ,(+ 9 9 5)) ("-1" ,(- 0 1))
1506 ("-45" ,(- 0 45)) ("2#" 20.0) ("2##" 200.0) ("12##" 1200.0)
1507 ("#b#i100" 4.0)
9dd9857f
MV
1508 ;; Fractions:
1509 ("1/1" 1) ("1/2" 1/2) ("-1/2" -1/2) ("1#/1" 10.0)
1510 ("10/1#" 1.0) ("1#/1#" 1.0) ("#e9/10" 9/10) ("#e10/1#" 1)
b7d9b1cf
DH
1511 ("#i6/8" 0.75) ("#i1/1" 1.0)
1512 ;; Decimal numbers:
1513 ;; * <uinteger 10> <suffix>
1514 ("1e2" 100.0) ("1E2" 100.0) ("1s2" 100.0) ("1S2" 100.0)
1515 ("1f2" 100.0) ("1F2" 100.0) ("1d2" 100.0) ("1D2" 100.0)
1516 ("1l2" 100.0) ("1L2" 100.0) ("1e+2" 100.0) ("1e-2" 0.01)
1517 ;; * . <digit 10>+ #* <suffix>
1518 (".1" .1) (".0123456789" 123456789e-10) (".16#" 0.16)
1519 (".0123456789e10" 123456789.0) (".16#e3" 160.0) ("#d.3" 0.3)
1520 ;; * <digit 10>+ . <digit 10>* #* <suffix>
1521 ("3." ,(exact->inexact 3)) ("3.e0" ,(exact->inexact 3))
1522 ("3.1" ,(exact->inexact 31/10)) ("3.1e0" 3.1) ("3.1#" 3.1)
1523 ("3.1#e0" 3.1)
1524 ;; * <digit 10>+ #+ . #* <suffix>
1525 ("3#." 30.0) ("3#.e0" 30.0) ("3#.#" 30.0) ("3#.#e0" 30.0)
9d427b2c
MW
1526 ))
1527 #t)
1528
1529 (pass-if "valid complex number strings"
1530 (for-each (lambda (triple)
1531 (apply
1532 (lambda (str re im)
1533 (let ((z (string->number str)))
1534 (if (or (eq? z #f)
1535 (not (and (eqv? (real-part z) re)
1536 (eqv? (imag-part z) im))))
1537 (begin
1538 (pk str re im)
1539 (throw 'fail)))))
1540 triple))
1541 `(("1@0" 1 0) ("1@+0" 1 0) ("1@-0" 1 0) ("1/2@0" 1/2 0)
1542 ("1.0@0" 1.0 0) ("1.0@-0" 1.0 0)
1543 ("#e1@0" 1 0) ("#e1@+0" 1 0) ("#e1@-0" 1 0) ("#e0.5@0.0" 1/2 0)
1544 ("#e1.0@0" 1 0) ("#e1.0@-0" 1 0)
1545 ("#i1@0" 1.0 0.0) ("#i1@+0" 1.0 0.0) ("#i1@-0" 1.0 -0.0) ("#i1/2@0" 0.5 0.0)
1546 ("#i1.0@0" 1.0 0.0) ("#i1.0@-0" 1.0 -0.0)
1547 ("1@+0.0" 1.0 0.0) ("1.0@-0.0" 1.0 -0.0)
1548 ("2+3i" 2.0 3.0) ("4-5i" 4.0 -5.0)
1549 ("1+i" 1.0 1.0) ("1-i" 1.0 -1.0) ("+1i" 0.0 1.0) ("-1i" 0.0 -1.0)
1550 ("+i" 0.0 1.0) ("-i" 0.0 -1.0)
1551 ("1.0+.1i" 1.0 0.1) ("1.0-.1i" 1.0 -0.1)
1552 (".1+.0i" 0.1 0.0) ("1.+.0i" 1.0 0.0) (".1+.1i" 0.1 0.1)
1553 ("1e1+.1i" 10.0 0.1)
1554 ("0@+nan.0" 0 0) ("0@+inf.0" 0 0) ("0@-inf.0" 0 0)
1555 ("0.0@+nan.0" 0.0 0.0) ("0.0@+inf.0" 0.0 0.0) ("0.0@-inf.0" 0.0 0.0)
1556 ("#i0@+nan.0" 0.0 0.0) ("#i0@+inf.0" 0.0 0.0) ("#i0@-inf.0" 0.0 0.0)
1557 ("0.0@1" 0.0 0.0) ("0.0@2" -0.0 0.0) ("0.0@4" -0.0 -0.0) ("0.0@5" 0.0 -0.0)
40f89215 1558 ))
b7d9b1cf
DH
1559 #t)
1560
2f4a254a
DH
1561 (pass-if-exception "exponent too big"
1562 exception:out-of-range
48e78ba6
KR
1563 (string->number "12.13e141414"))
1564
1565 ;; in guile 1.6.7 and earlier, bad polar forms (where the conversion of
1566 ;; the angle gave #f) caused a segv
1567 (pass-if "1@a"
1568 (eq? #f (string->number "1@a"))))
2f4a254a 1569
f29b3454
DH
1570;;;
1571;;; number?
1572;;;
1573
7c24e528
RB
1574(with-test-prefix "number?"
1575 (pass-if (documented? number?))
1576 (pass-if (number? 0))
1577 (pass-if (number? 7))
1578 (pass-if (number? -7))
1579 (pass-if (number? 1.3))
1580 (pass-if (number? (+ 1 fixnum-max)))
1581 (pass-if (number? (- 1 fixnum-min)))
1582 (pass-if (number? 3+4i))
4d332f19
DH
1583 (pass-if (not (number? #\a)))
1584 (pass-if (not (number? "a")))
1585 (pass-if (not (number? (make-vector 0))))
1586 (pass-if (not (number? (cons 1 2))))
1587 (pass-if (not (number? #t)))
1588 (pass-if (not (number? (lambda () #t))))
1589 (pass-if (not (number? (current-input-port)))))
7c24e528 1590
f29b3454
DH
1591;;;
1592;;; complex?
1593;;;
1594
7c24e528
RB
1595(with-test-prefix "complex?"
1596 (pass-if (documented? complex?))
1597 (pass-if (complex? 0))
1598 (pass-if (complex? 7))
1599 (pass-if (complex? -7))
1600 (pass-if (complex? (+ 1 fixnum-max)))
1601 (pass-if (complex? (- 1 fixnum-min)))
1602 (pass-if (complex? 1.3))
1603 (pass-if (complex? 3+4i))
4d332f19
DH
1604 (pass-if (not (complex? #\a)))
1605 (pass-if (not (complex? "a")))
1606 (pass-if (not (complex? (make-vector 0))))
1607 (pass-if (not (complex? (cons 1 2))))
1608 (pass-if (not (complex? #t)))
1609 (pass-if (not (complex? (lambda () #t))))
1610 (pass-if (not (complex? (current-input-port)))))
7c24e528 1611
f29b3454
DH
1612;;;
1613;;; real?
1614;;;
1615
7c24e528
RB
1616(with-test-prefix "real?"
1617 (pass-if (documented? real?))
1618 (pass-if (real? 0))
1619 (pass-if (real? 7))
1620 (pass-if (real? -7))
1621 (pass-if (real? (+ 1 fixnum-max)))
1622 (pass-if (real? (- 1 fixnum-min)))
1623 (pass-if (real? 1.3))
c960e556
MW
1624 (pass-if (real? +inf.0))
1625 (pass-if (real? -inf.0))
1626 (pass-if (real? +nan.0))
1627 (pass-if (not (real? +inf.0-inf.0i)))
1628 (pass-if (not (real? +nan.0+nan.0i)))
4d332f19
DH
1629 (pass-if (not (real? 3+4i)))
1630 (pass-if (not (real? #\a)))
1631 (pass-if (not (real? "a")))
1632 (pass-if (not (real? (make-vector 0))))
1633 (pass-if (not (real? (cons 1 2))))
1634 (pass-if (not (real? #t)))
1635 (pass-if (not (real? (lambda () #t))))
1636 (pass-if (not (real? (current-input-port)))))
7c24e528 1637
f29b3454 1638;;;
c960e556 1639;;; rational?
f29b3454
DH
1640;;;
1641
7c24e528
RB
1642(with-test-prefix "rational?"
1643 (pass-if (documented? rational?))
1644 (pass-if (rational? 0))
1645 (pass-if (rational? 7))
1646 (pass-if (rational? -7))
1647 (pass-if (rational? (+ 1 fixnum-max)))
1648 (pass-if (rational? (- 1 fixnum-min)))
1649 (pass-if (rational? 1.3))
c960e556
MW
1650 (pass-if (not (rational? +inf.0)))
1651 (pass-if (not (rational? -inf.0)))
1652 (pass-if (not (rational? +nan.0)))
1653 (pass-if (not (rational? +inf.0-inf.0i)))
1654 (pass-if (not (rational? +nan.0+nan.0i)))
4d332f19
DH
1655 (pass-if (not (rational? 3+4i)))
1656 (pass-if (not (rational? #\a)))
1657 (pass-if (not (rational? "a")))
1658 (pass-if (not (rational? (make-vector 0))))
1659 (pass-if (not (rational? (cons 1 2))))
1660 (pass-if (not (rational? #t)))
1661 (pass-if (not (rational? (lambda () #t))))
1662 (pass-if (not (rational? (current-input-port)))))
7c24e528 1663
f29b3454
DH
1664;;;
1665;;; integer?
1666;;;
1667
7c24e528
RB
1668(with-test-prefix "integer?"
1669 (pass-if (documented? integer?))
1670 (pass-if (integer? 0))
1671 (pass-if (integer? 7))
1672 (pass-if (integer? -7))
1673 (pass-if (integer? (+ 1 fixnum-max)))
1674 (pass-if (integer? (- 1 fixnum-min)))
1675 (pass-if (and (= 3+0i (round 3+0i)) (integer? 3+0i)))
1676 (pass-if (and (= 1.0 (round 1.0)) (integer? 1.0)))
4d332f19 1677 (pass-if (not (integer? 1.3)))
8e43ed5d
AW
1678 (pass-if (not (integer? +inf.0)))
1679 (pass-if (not (integer? -inf.0)))
c1122753 1680 (pass-if (not (integer? +nan.0)))
c7218482
MW
1681 (pass-if (not (integer? +inf.0-inf.0i)))
1682 (pass-if (not (integer? +nan.0+nan.0i)))
4d332f19
DH
1683 (pass-if (not (integer? 3+4i)))
1684 (pass-if (not (integer? #\a)))
1685 (pass-if (not (integer? "a")))
1686 (pass-if (not (integer? (make-vector 0))))
1687 (pass-if (not (integer? (cons 1 2))))
1688 (pass-if (not (integer? #t)))
1689 (pass-if (not (integer? (lambda () #t))))
1690 (pass-if (not (integer? (current-input-port)))))
7c24e528 1691
f29b3454
DH
1692;;;
1693;;; inexact?
1694;;;
1695
7c24e528
RB
1696(with-test-prefix "inexact?"
1697 (pass-if (documented? inexact?))
4d332f19
DH
1698 (pass-if (not (inexact? 0)))
1699 (pass-if (not (inexact? 7)))
1700 (pass-if (not (inexact? -7)))
1701 (pass-if (not (inexact? (+ 1 fixnum-max))))
1702 (pass-if (not (inexact? (- 1 fixnum-min))))
7c24e528
RB
1703 (pass-if (inexact? 1.3))
1704 (pass-if (inexact? 3.1+4.2i))
41df63cf
MW
1705 (pass-if (inexact? +inf.0))
1706 (pass-if (inexact? -inf.0))
1707 (pass-if (inexact? +nan.0))
ca2b31fe
MV
1708 (pass-if-exception "char"
1709 exception:wrong-type-arg
1710 (not (inexact? #\a)))
1711 (pass-if-exception "string"
1712 exception:wrong-type-arg
1713 (not (inexact? "a")))
1714 (pass-if-exception "vector"
1715 exception:wrong-type-arg
1716 (not (inexact? (make-vector 0))))
1717 (pass-if-exception "cons"
1718 exception:wrong-type-arg
1719 (not (inexact? (cons 1 2))))
1720 (pass-if-exception "bool"
1721 exception:wrong-type-arg
1722 (not (inexact? #t)))
1723 (pass-if-exception "procedure"
1724 exception:wrong-type-arg
1725 (not (inexact? (lambda () #t))))
1726 (pass-if-exception "port"
1727 exception:wrong-type-arg
1728 (not (inexact? (current-input-port)))))
7c24e528 1729
47ae1f0e
DH
1730;;;
1731;;; equal?
1732;;;
1733
1734(with-test-prefix "equal?"
1735 (pass-if (documented? equal?))
2e6e1933
MW
1736
1737 ;; The following test will fail on platforms
1738 ;; without distinct signed zeroes 0.0 and -0.0.
1739 (pass-if (not (equal? 0.0 -0.0)))
1740
47ae1f0e
DH
1741 (pass-if (equal? 0 0))
1742 (pass-if (equal? 7 7))
1743 (pass-if (equal? -7 -7))
1744 (pass-if (equal? (+ 1 fixnum-max) (+ 1 fixnum-max)))
1745 (pass-if (equal? (- fixnum-min 1) (- fixnum-min 1)))
2e6e1933
MW
1746 (pass-if (equal? 0.0 0.0))
1747 (pass-if (equal? -0.0 -0.0))
c7218482
MW
1748 (pass-if (equal? 0.0+0.0i 0.0+0.0i))
1749 (pass-if (equal? 0.0-0.0i 0.0-0.0i))
1750 (pass-if (equal? -0.0+0.0i -0.0+0.0i))
47ae1f0e 1751 (pass-if (not (equal? 0 1)))
2e6e1933
MW
1752 (pass-if (not (equal? 0 0.0)))
1753 (pass-if (not (equal? 1 1.0)))
1754 (pass-if (not (equal? 0.0 0)))
1755 (pass-if (not (equal? 1.0 1)))
1756 (pass-if (not (equal? -1.0 -1)))
c7218482
MW
1757 (pass-if (not (equal? 1.0 1.0+0.0i)))
1758 (pass-if (not (equal? 0.0 0.0+0.0i)))
1759 (pass-if (not (equal? 0.0+0.0i 0.0-0.0i)))
1760 (pass-if (not (equal? 0.0+0.0i -0.0+0.0i)))
47ae1f0e
DH
1761 (pass-if (not (equal? fixnum-max (+ 1 fixnum-max))))
1762 (pass-if (not (equal? (+ 1 fixnum-max) fixnum-max)))
1763 (pass-if (not (equal? (+ 1 fixnum-max) (+ 2 fixnum-max))))
1764 (pass-if (not (equal? fixnum-min (- fixnum-min 1))))
1765 (pass-if (not (equal? (- fixnum-min 1) fixnum-min)))
1766 (pass-if (not (equal? (- fixnum-min 1) (- fixnum-min 2))))
1767 (pass-if (not (equal? (+ fixnum-max 1) (- fixnum-min 1))))
1768
1769 (pass-if (not (equal? (ash 1 256) +inf.0)))
1770 (pass-if (not (equal? +inf.0 (ash 1 256))))
1771 (pass-if (not (equal? (ash 1 256) -inf.0)))
1772 (pass-if (not (equal? -inf.0 (ash 1 256))))
1773
1774 ;; in gmp prior to 4.2, mpz_cmp_d ended up treating Inf as 2^1024, make
1775 ;; sure we've avoided that
1776 (pass-if (not (equal? (ash 1 1024) +inf.0)))
1777 (pass-if (not (equal? +inf.0 (ash 1 1024))))
1778 (pass-if (not (equal? (- (ash 1 1024)) -inf.0)))
1779 (pass-if (not (equal? -inf.0 (- (ash 1 1024)))))
1780
2e6e1933
MW
1781 (pass-if (equal? +nan.0 +nan.0))
1782 (pass-if (equal? +nan.0 +nan.0))
1783 (pass-if (not (equal? +nan.0 0.0+nan.0i)))
1784
47ae1f0e
DH
1785 (pass-if (not (equal? 0 +nan.0)))
1786 (pass-if (not (equal? +nan.0 0)))
1787 (pass-if (not (equal? 1 +nan.0)))
1788 (pass-if (not (equal? +nan.0 1)))
1789 (pass-if (not (equal? -1 +nan.0)))
1790 (pass-if (not (equal? +nan.0 -1)))
1791
1792 (pass-if (not (equal? (ash 1 256) +nan.0)))
1793 (pass-if (not (equal? +nan.0 (ash 1 256))))
1794 (pass-if (not (equal? (- (ash 1 256)) +nan.0)))
1795 (pass-if (not (equal? +nan.0 (- (ash 1 256)))))
1796
1797 (pass-if (not (equal? (ash 1 8192) +nan.0)))
1798 (pass-if (not (equal? +nan.0 (ash 1 8192))))
1799 (pass-if (not (equal? (- (ash 1 8192)) +nan.0)))
1800 (pass-if (not (equal? +nan.0 (- (ash 1 8192)))))
1801
1802 ;; in gmp prior to 4.2, mpz_cmp_d ended up treating NaN as 3*2^1023, make
1803 ;; sure we've avoided that
1804 (pass-if (not (equal? (ash 3 1023) +nan.0)))
1805 (pass-if (not (equal? +nan.0 (ash 3 1023)))))
1806
2e6e1933
MW
1807;;;
1808;;; eqv?
1809;;;
1810
1811(with-test-prefix "eqv?"
1812 (pass-if (documented? eqv?))
1813
1814 ;; The following test will fail on platforms
1815 ;; without distinct signed zeroes 0.0 and -0.0.
1816 (pass-if (not (eqv? 0.0 -0.0)))
1817
1818 (pass-if (eqv? 0 0))
1819 (pass-if (eqv? 7 7))
1820 (pass-if (eqv? -7 -7))
1821 (pass-if (eqv? (+ 1 fixnum-max) (+ 1 fixnum-max)))
1822 (pass-if (eqv? (- fixnum-min 1) (- fixnum-min 1)))
1823 (pass-if (eqv? 0.0 0.0))
1824 (pass-if (eqv? -0.0 -0.0))
c7218482
MW
1825 (pass-if (eqv? 0.0+0.0i 0.0+0.0i))
1826 (pass-if (eqv? 0.0-0.0i 0.0-0.0i))
1827 (pass-if (eqv? -0.0+0.0i -0.0+0.0i))
1828 (pass-if (not (eqv? 0.0 -0.0)))
1829 (pass-if (not (eqv? 0.0 0.0+0.0i)))
1830 (pass-if (not (eqv? 0.0+0.0i 0.0-0.0i)))
1831 (pass-if (not (eqv? 0.0+0.0i -0.0+0.0i)))
2e6e1933
MW
1832 (pass-if (not (eqv? 0 1)))
1833 (pass-if (not (eqv? 0 0.0)))
1834 (pass-if (not (eqv? 1 1.0)))
1835 (pass-if (not (eqv? 0.0 0)))
1836 (pass-if (not (eqv? 1.0 1)))
1837 (pass-if (not (eqv? -1.0 -1)))
c7218482
MW
1838 (pass-if (not (eqv? 1.0 1.0+0.0i)))
1839 (pass-if (not (eqv? 0.0 0.0+0.0i)))
2e6e1933
MW
1840 (pass-if (not (eqv? fixnum-max (+ 1 fixnum-max))))
1841 (pass-if (not (eqv? (+ 1 fixnum-max) fixnum-max)))
1842 (pass-if (not (eqv? (+ 1 fixnum-max) (+ 2 fixnum-max))))
1843 (pass-if (not (eqv? fixnum-min (- fixnum-min 1))))
1844 (pass-if (not (eqv? (- fixnum-min 1) fixnum-min)))
1845 (pass-if (not (eqv? (- fixnum-min 1) (- fixnum-min 2))))
1846 (pass-if (not (eqv? (+ fixnum-max 1) (- fixnum-min 1))))
1847
1848 (pass-if (not (eqv? (ash 1 256) +inf.0)))
1849 (pass-if (not (eqv? +inf.0 (ash 1 256))))
1850 (pass-if (not (eqv? (ash 1 256) -inf.0)))
1851 (pass-if (not (eqv? -inf.0 (ash 1 256))))
1852
1853 ;; in gmp prior to 4.2, mpz_cmp_d ended up treating Inf as 2^1024, make
1854 ;; sure we've avoided that
1855 (pass-if (not (eqv? (ash 1 1024) +inf.0)))
1856 (pass-if (not (eqv? +inf.0 (ash 1 1024))))
1857 (pass-if (not (eqv? (- (ash 1 1024)) -inf.0)))
1858 (pass-if (not (eqv? -inf.0 (- (ash 1 1024)))))
1859
1860 (pass-if (eqv? +nan.0 +nan.0))
1861 (pass-if (not (eqv? +nan.0 0.0+nan.0i)))
1862
1863 (pass-if (not (eqv? 0 +nan.0)))
1864 (pass-if (not (eqv? +nan.0 0)))
1865 (pass-if (not (eqv? 1 +nan.0)))
1866 (pass-if (not (eqv? +nan.0 1)))
1867 (pass-if (not (eqv? -1 +nan.0)))
1868 (pass-if (not (eqv? +nan.0 -1)))
1869
1870 (pass-if (not (eqv? (ash 1 256) +nan.0)))
1871 (pass-if (not (eqv? +nan.0 (ash 1 256))))
1872 (pass-if (not (eqv? (- (ash 1 256)) +nan.0)))
1873 (pass-if (not (eqv? +nan.0 (- (ash 1 256)))))
1874
1875 (pass-if (not (eqv? (ash 1 8192) +nan.0)))
1876 (pass-if (not (eqv? +nan.0 (ash 1 8192))))
1877 (pass-if (not (eqv? (- (ash 1 8192)) +nan.0)))
1878 (pass-if (not (eqv? +nan.0 (- (ash 1 8192)))))
1879
1880 ;; in gmp prior to 4.2, mpz_cmp_d ended up treating NaN as 3*2^1023, make
1881 ;; sure we've avoided that
1882 (pass-if (not (eqv? (ash 3 1023) +nan.0)))
1883 (pass-if (not (eqv? +nan.0 (ash 3 1023)))))
1884
f29b3454
DH
1885;;;
1886;;; =
1887;;;
1888
7c24e528 1889(with-test-prefix "="
8a1f4f98 1890 (pass-if (documented? =))
7c24e528
RB
1891 (pass-if (= 7 7))
1892 (pass-if (= -7 -7))
c7218482
MW
1893 (pass-if (= 1.0 1))
1894 (pass-if (= 1 1.0))
1895 (pass-if (= -1 -1.0))
1896 (pass-if (= 0.0 0.0))
1897 (pass-if (= 0.0 -0.0))
1898 (pass-if (= 1 1.0+0.0i))
1899
1900 (pass-if (= 0 0))
1901 (pass-if (= 0 0.0))
1902 (pass-if (= 0 -0.0))
1903 (pass-if (= 0 0.0+0.0i))
1904 (pass-if (= 0 0.0-0.0i))
1905 (pass-if (= 0 0.0+0.0i))
1906 (pass-if (= 0 -0.0-0.0i))
1907
1908 (pass-if (= 0 0))
1909 (pass-if (= 0.0 0))
1910 (pass-if (= -0.0 0))
1911 (pass-if (= 0.0+0.0i 0))
1912 (pass-if (= 0.0-0.0i 0))
1913 (pass-if (= 0.0+0.0i 0))
1914 (pass-if (= -0.0-0.0i 0))
1915
1916 (pass-if (= 0.0+0.0i 0.0-0.0i))
1917 (pass-if (= 0.0+0.0i -0.0+0.0i))
1918
7c24e528 1919 (pass-if (= (+ 1 fixnum-max) (+ 1 fixnum-max)))
47ae1f0e 1920 (pass-if (= (- fixnum-min 1) (- fixnum-min 1)))
4d332f19
DH
1921 (pass-if (not (= 0 1)))
1922 (pass-if (not (= fixnum-max (+ 1 fixnum-max))))
1923 (pass-if (not (= (+ 1 fixnum-max) fixnum-max)))
47ae1f0e 1924 (pass-if (not (= (+ 1 fixnum-max) (+ 2 fixnum-max))))
4d332f19
DH
1925 (pass-if (not (= fixnum-min (- fixnum-min 1))))
1926 (pass-if (not (= (- fixnum-min 1) fixnum-min)))
47ae1f0e 1927 (pass-if (not (= (- fixnum-min 1) (- fixnum-min 2))))
4d332f19 1928 (pass-if (not (= (+ fixnum-max 1) (- fixnum-min 1))))
2cfcaed5 1929
adda36ed
KR
1930 (pass-if (not (= (ash 1 256) +inf.0)))
1931 (pass-if (not (= +inf.0 (ash 1 256))))
1932 (pass-if (not (= (ash 1 256) -inf.0)))
1933 (pass-if (not (= -inf.0 (ash 1 256))))
1934
1935 ;; in gmp prior to 4.2, mpz_cmp_d ended up treating Inf as 2^1024, make
1936 ;; sure we've avoided that
1937 (pass-if (not (= (ash 1 1024) +inf.0)))
1938 (pass-if (not (= +inf.0 (ash 1 1024))))
1939 (pass-if (not (= (- (ash 1 1024)) -inf.0)))
1940 (pass-if (not (= -inf.0 (- (ash 1 1024)))))
1941
2cfcaed5
KR
1942 (pass-if (not (= +nan.0 +nan.0)))
1943 (pass-if (not (= 0 +nan.0)))
1944 (pass-if (not (= +nan.0 0)))
1945 (pass-if (not (= 1 +nan.0)))
1946 (pass-if (not (= +nan.0 1)))
1947 (pass-if (not (= -1 +nan.0)))
1948 (pass-if (not (= +nan.0 -1)))
1949
1950 (pass-if (not (= (ash 1 256) +nan.0)))
1951 (pass-if (not (= +nan.0 (ash 1 256))))
1952 (pass-if (not (= (- (ash 1 256)) +nan.0)))
1953 (pass-if (not (= +nan.0 (- (ash 1 256)))))
1954
1955 (pass-if (not (= (ash 1 8192) +nan.0)))
1956 (pass-if (not (= +nan.0 (ash 1 8192))))
1957 (pass-if (not (= (- (ash 1 8192)) +nan.0)))
1958 (pass-if (not (= +nan.0 (- (ash 1 8192)))))
1959
1960 ;; in gmp prior to 4.2, mpz_cmp_d ended up treating NaN as 3*2^1023, make
1961 ;; sure we've avoided that
1962 (pass-if (not (= (ash 3 1023) +nan.0)))
2a8b5e04
KR
1963 (pass-if (not (= +nan.0 (ash 3 1023))))
1964
1965 (pass-if (= 1/2 0.5))
1966 (pass-if (not (= 1/3 0.333333333333333333333333333333333)))
1967 (pass-if (not (= 2/3 0.5)))
1968 (pass-if (not (= 0.5 (+ 1/2 (/ 1 (ash 1 1000))))))
1969
1970 (pass-if (= 1/2 0.5+0i))
1971 (pass-if (not (= 0.333333333333333333333333333333333 1/3)))
1972 (pass-if (not (= 2/3 0.5+0i)))
1973 (pass-if (not (= 1/2 0+0.5i)))
1974
1975 (pass-if (= 0.5 1/2))
1976 (pass-if (not (= 0.5 2/3)))
1977 (pass-if (not (= (+ 1/2 (/ 1 (ash 1 1000))) 0.5)))
1978
1979 (pass-if (= 0.5+0i 1/2))
1980 (pass-if (not (= 0.5+0i 2/3)))
6f6847fa
KR
1981 (pass-if (not (= 0+0.5i 1/2)))
1982
1983 ;; prior to guile 1.8, inum/flonum comparisons were done just by
1984 ;; converting the inum to a double, which on a 64-bit would round making
1985 ;; say inexact 2^58 appear equal to exact 2^58+1
1986 (pass-if (= (ash-flo 1.0 58) (ash 1 58)))
1987 (pass-if (not (= (ash-flo 1.0 58) (1+ (ash 1 58)))))
1988 (pass-if (not (= (ash-flo 1.0 58) (1- (ash 1 58)))))
1989 (pass-if (= (ash 1 58) (ash-flo 1.0 58)))
1990 (pass-if (not (= (1+ (ash 1 58)) (ash-flo 1.0 58))))
1991 (pass-if (not (= (1- (ash 1 58)) (ash-flo 1.0 58)))))
7c24e528 1992
de142bea
DH
1993;;;
1994;;; <
1995;;;
1996
1997(with-test-prefix "<"
1998
8a1f4f98 1999 (pass-if "documented?"
cb18f2a8 2000 (documented? <))
de142bea 2001
de142bea
DH
2002 (with-test-prefix "(< 0 n)"
2003
2004 (pass-if "n = 0"
2005 (not (< 0 0)))
2006
2007 (pass-if "n = 0.0"
2008 (not (< 0 0.0)))
2009
2010 (pass-if "n = 1"
2011 (< 0 1))
2012
2013 (pass-if "n = 1.0"
2014 (< 0 1.0))
2015
2016 (pass-if "n = -1"
2017 (not (< 0 -1)))
2018
2019 (pass-if "n = -1.0"
2020 (not (< 0 -1.0)))
2021
21e39e8f
DH
2022 (pass-if "n = fixnum-max"
2023 (< 0 fixnum-max))
2024
2025 (pass-if "n = fixnum-max + 1"
2026 (< 0 (+ fixnum-max 1)))
2027
2028 (pass-if "n = fixnum-min"
2029 (not (< 0 fixnum-min)))
de142bea 2030
21e39e8f
DH
2031 (pass-if "n = fixnum-min - 1"
2032 (not (< 0 (- fixnum-min 1)))))
2033
de142bea
DH
2034 (with-test-prefix "(< 0.0 n)"
2035
2036 (pass-if "n = 0"
2037 (not (< 0.0 0)))
2038
2039 (pass-if "n = 0.0"
2040 (not (< 0.0 0.0)))
2041
2042 (pass-if "n = 1"
2043 (< 0.0 1))
2044
2045 (pass-if "n = 1.0"
2046 (< 0.0 1.0))
2047
2048 (pass-if "n = -1"
2049 (not (< 0.0 -1)))
2050
2051 (pass-if "n = -1.0"
2052 (not (< 0.0 -1.0)))
2053
21e39e8f
DH
2054 (pass-if "n = fixnum-max"
2055 (< 0.0 fixnum-max))
2056
2057 (pass-if "n = fixnum-max + 1"
2058 (< 0.0 (+ fixnum-max 1)))
de142bea 2059
21e39e8f
DH
2060 (pass-if "n = fixnum-min"
2061 (not (< 0.0 fixnum-min)))
2062
2063 (pass-if "n = fixnum-min - 1"
2064 (not (< 0.0 (- fixnum-min 1)))))
2065
2066 (with-test-prefix "(< 1 n)"
de142bea 2067
21e39e8f 2068 (pass-if "n = 0"
de142bea
DH
2069 (not (< 1 0)))
2070
21e39e8f
DH
2071 (pass-if "n = 0.0"
2072 (not (< 1 0.0)))
2073
2074 (pass-if "n = 1"
2075 (not (< 1 1)))
2076
de142bea 2077 (pass-if "n = 1.0"
21e39e8f
DH
2078 (not (< 1 1.0)))
2079
2080 (pass-if "n = -1"
2081 (not (< 1 -1)))
2082
2083 (pass-if "n = -1.0"
2084 (not (< 1 -1.0)))
2085
2086 (pass-if "n = fixnum-max"
2087 (< 1 fixnum-max))
2088
2089 (pass-if "n = fixnum-max + 1"
2090 (< 1 (+ fixnum-max 1)))
2091
2092 (pass-if "n = fixnum-min"
2093 (not (< 1 fixnum-min)))
2094
2095 (pass-if "n = fixnum-min - 1"
2096 (not (< 1 (- fixnum-min 1)))))
2097
2098 (with-test-prefix "(< 1.0 n)"
2099
2100 (pass-if "n = 0"
de142bea
DH
2101 (not (< 1.0 0)))
2102
21e39e8f
DH
2103 (pass-if "n = 0.0"
2104 (not (< 1.0 0.0)))
2105
2106 (pass-if "n = 1"
2107 (not (< 1.0 1)))
2108
2109 (pass-if "n = 1.0"
2110 (not (< 1.0 1.0)))
2111
de142bea 2112 (pass-if "n = -1"
21e39e8f
DH
2113 (not (< 1.0 -1)))
2114
2115 (pass-if "n = -1.0"
2116 (not (< 1.0 -1.0)))
2117
2118 (pass-if "n = fixnum-max"
2119 (< 1.0 fixnum-max))
2120
2121 (pass-if "n = fixnum-max + 1"
2122 (< 1.0 (+ fixnum-max 1)))
2123
2124 (pass-if "n = fixnum-min"
2125 (not (< 1.0 fixnum-min)))
2126
2127 (pass-if "n = fixnum-min - 1"
2128 (not (< 1.0 (- fixnum-min 1)))))
2129
2130 (with-test-prefix "(< -1 n)"
2131
2132 (pass-if "n = 0"
de142bea
DH
2133 (< -1 0))
2134
21e39e8f
DH
2135 (pass-if "n = 0.0"
2136 (< -1 0.0))
2137
2138 (pass-if "n = 1"
2139 (< -1 1))
2140
2141 (pass-if "n = 1.0"
2142 (< -1 1.0))
2143
2144 (pass-if "n = -1"
2145 (not (< -1 -1)))
2146
de142bea 2147 (pass-if "n = -1.0"
21e39e8f
DH
2148 (not (< -1 -1.0)))
2149
2150 (pass-if "n = fixnum-max"
2151 (< -1 fixnum-max))
2152
2153 (pass-if "n = fixnum-max + 1"
2154 (< -1 (+ fixnum-max 1)))
2155
2156 (pass-if "n = fixnum-min"
2157 (not (< -1 fixnum-min)))
2158
2159 (pass-if "n = fixnum-min - 1"
2160 (not (< -1 (- fixnum-min 1)))))
2161
2162 (with-test-prefix "(< -1.0 n)"
2163
2164 (pass-if "n = 0"
de142bea
DH
2165 (< -1.0 0))
2166
21e39e8f
DH
2167 (pass-if "n = 0.0"
2168 (< -1.0 0.0))
2169
2170 (pass-if "n = 1"
2171 (< -1.0 1))
2172
2173 (pass-if "n = 1.0"
2174 (< -1.0 1.0))
2175
2176 (pass-if "n = -1"
2177 (not (< -1.0 -1)))
2178
2179 (pass-if "n = -1.0"
2180 (not (< -1.0 -1.0)))
2181
2182 (pass-if "n = fixnum-max"
2183 (< -1.0 fixnum-max))
2184
2185 (pass-if "n = fixnum-max + 1"
2186 (< -1.0 (+ fixnum-max 1)))
de142bea 2187
21e39e8f
DH
2188 (pass-if "n = fixnum-min"
2189 (not (< -1.0 fixnum-min)))
2190
2191 (pass-if "n = fixnum-min - 1"
2192 (not (< -1.0 (- fixnum-min 1)))))
2193
2194 (with-test-prefix "(< fixnum-max n)"
2195
2196 (pass-if "n = 0"
2197 (not (< fixnum-max 0)))
2198
2199 (pass-if "n = 0.0"
2200 (not (< fixnum-max 0.0)))
de142bea
DH
2201
2202 (pass-if "n = 1"
21e39e8f 2203 (not (< fixnum-max 1)))
de142bea
DH
2204
2205 (pass-if "n = 1.0"
21e39e8f 2206 (not (< fixnum-max 1.0)))
de142bea
DH
2207
2208 (pass-if "n = -1"
21e39e8f 2209 (not (< fixnum-max -1)))
de142bea
DH
2210
2211 (pass-if "n = -1.0"
21e39e8f 2212 (not (< fixnum-max -1.0)))
de142bea 2213
21e39e8f
DH
2214 (pass-if "n = fixnum-max"
2215 (not (< fixnum-max fixnum-max)))
de142bea 2216
21e39e8f
DH
2217 (pass-if "n = fixnum-max + 1"
2218 (< fixnum-max (+ fixnum-max 1)))
2219
2220 (pass-if "n = fixnum-min"
2221 (not (< fixnum-max fixnum-min)))
2222
2223 (pass-if "n = fixnum-min - 1"
2224 (not (< fixnum-max (- fixnum-min 1)))))
2225
2226 (with-test-prefix "(< (+ fixnum-max 1) n)"
2227
2228 (pass-if "n = 0"
2229 (not (< (+ fixnum-max 1) 0)))
2230
2231 (pass-if "n = 0.0"
2232 (not (< (+ fixnum-max 1) 0.0)))
de142bea
DH
2233
2234 (pass-if "n = 1"
21e39e8f 2235 (not (< (+ fixnum-max 1) 1)))
de142bea
DH
2236
2237 (pass-if "n = 1.0"
21e39e8f 2238 (not (< (+ fixnum-max 1) 1.0)))
de142bea
DH
2239
2240 (pass-if "n = -1"
21e39e8f 2241 (not (< (+ fixnum-max 1) -1)))
de142bea
DH
2242
2243 (pass-if "n = -1.0"
21e39e8f 2244 (not (< (+ fixnum-max 1) -1.0)))
de142bea 2245
21e39e8f
DH
2246 (pass-if "n = fixnum-max"
2247 (not (< (+ fixnum-max 1) fixnum-max)))
de142bea 2248
21e39e8f
DH
2249 (pass-if "n = fixnum-max + 1"
2250 (not (< (+ fixnum-max 1) (+ fixnum-max 1))))
de142bea 2251
21e39e8f
DH
2252 (pass-if "n = fixnum-min"
2253 (not (< (+ fixnum-max 1) fixnum-min)))
2254
2255 (pass-if "n = fixnum-min - 1"
2256 (not (< (+ fixnum-max 1) (- fixnum-min 1)))))
2257
2258 (with-test-prefix "(< fixnum-min n)"
2259
2260 (pass-if "n = 0"
2261 (< fixnum-min 0))
2262
2263 (pass-if "n = 0.0"
2264 (< fixnum-min 0.0))
de142bea
DH
2265
2266 (pass-if "n = 1"
21e39e8f 2267 (< fixnum-min 1))
de142bea
DH
2268
2269 (pass-if "n = 1.0"
21e39e8f 2270 (< fixnum-min 1.0))
de142bea
DH
2271
2272 (pass-if "n = -1"
21e39e8f 2273 (< fixnum-min -1))
de142bea
DH
2274
2275 (pass-if "n = -1.0"
21e39e8f 2276 (< fixnum-min -1.0))
de142bea 2277
21e39e8f
DH
2278 (pass-if "n = fixnum-max"
2279 (< fixnum-min fixnum-max))
2280
2281 (pass-if "n = fixnum-max + 1"
2282 (< fixnum-min (+ fixnum-max 1)))
de142bea 2283
21e39e8f
DH
2284 (pass-if "n = fixnum-min"
2285 (not (< fixnum-min fixnum-min)))
de142bea 2286
21e39e8f
DH
2287 (pass-if "n = fixnum-min - 1"
2288 (not (< fixnum-min (- fixnum-min 1)))))
2289
2290 (with-test-prefix "(< (- fixnum-min 1) n)"
2291
2292 (pass-if "n = 0"
2293 (< (- fixnum-min 1) 0))
2294
2295 (pass-if "n = 0.0"
2296 (< (- fixnum-min 1) 0.0))
2297
2298 (pass-if "n = 1"
2299 (< (- fixnum-min 1) 1))
2300
2301 (pass-if "n = 1.0"
2302 (< (- fixnum-min 1) 1.0))
de142bea
DH
2303
2304 (pass-if "n = -1"
21e39e8f 2305 (< (- fixnum-min 1) -1))
de142bea
DH
2306
2307 (pass-if "n = -1.0"
21e39e8f
DH
2308 (< (- fixnum-min 1) -1.0))
2309
2310 (pass-if "n = fixnum-max"
2311 (< (- fixnum-min 1) fixnum-max))
2312
2313 (pass-if "n = fixnum-max + 1"
2314 (< (- fixnum-min 1) (+ fixnum-max 1)))
2315
2316 (pass-if "n = fixnum-min"
2317 (< (- fixnum-min 1) fixnum-min))
2318
2319 (pass-if "n = fixnum-min - 1"
2cfcaed5
KR
2320 (not (< (- fixnum-min 1) (- fixnum-min 1)))))
2321
adda36ed
KR
2322 (pass-if (< (ash 1 256) +inf.0))
2323 (pass-if (not (< +inf.0 (ash 1 256))))
2324 (pass-if (not (< (ash 1 256) -inf.0)))
2325 (pass-if (< -inf.0 (ash 1 256)))
2326
2327 ;; in gmp prior to 4.2, mpz_cmp_d ended up treating Inf as 2^1024, make
2328 ;; sure we've avoided that
2329 (pass-if (< (1- (ash 1 1024)) +inf.0))
2330 (pass-if (< (ash 1 1024) +inf.0))
2331 (pass-if (< (1+ (ash 1 1024)) +inf.0))
2332 (pass-if (not (< +inf.0 (1- (ash 1 1024)))))
2333 (pass-if (not (< +inf.0 (ash 1 1024))))
2334 (pass-if (not (< +inf.0 (1+ (ash 1 1024)))))
2335 (pass-if (< -inf.0 (- (1- (ash 1 1024)))))
2336 (pass-if (< -inf.0 (- (ash 1 1024))))
2337 (pass-if (< -inf.0 (- (1+ (ash 1 1024)))))
2338 (pass-if (not (< (- (1- (ash 1 1024))) -inf.0)))
2339 (pass-if (not (< (- (ash 1 1024)) -inf.0)))
2340 (pass-if (not (< (- (1+ (ash 1 1024))) -inf.0)))
2341
2cfcaed5
KR
2342 (pass-if (not (< +nan.0 +nan.0)))
2343 (pass-if (not (< 0 +nan.0)))
2344 (pass-if (not (< +nan.0 0)))
2345 (pass-if (not (< 1 +nan.0)))
2346 (pass-if (not (< +nan.0 1)))
2347 (pass-if (not (< -1 +nan.0)))
2348 (pass-if (not (< +nan.0 -1)))
2349
2350 (pass-if (not (< (ash 1 256) +nan.0)))
2351 (pass-if (not (< +nan.0 (ash 1 256))))
2352 (pass-if (not (< (- (ash 1 256)) +nan.0)))
2353 (pass-if (not (< +nan.0 (- (ash 1 256)))))
2354
2355 (pass-if (not (< (ash 1 8192) +nan.0)))
2356 (pass-if (not (< +nan.0 (ash 1 8192))))
2357 (pass-if (not (< (- (ash 1 8192)) +nan.0)))
2358 (pass-if (not (< +nan.0 (- (ash 1 8192)))))
2359
2360 ;; in gmp prior to 4.2, mpz_cmp_d ended up treating NaN as 3*2^1023, make
2361 ;; sure we've avoided that
2362 (pass-if (not (< (ash 3 1023) +nan.0)))
2363 (pass-if (not (< (1+ (ash 3 1023)) +nan.0)))
2364 (pass-if (not (< (1- (ash 3 1023)) +nan.0)))
2365 (pass-if (not (< +nan.0 (ash 3 1023))))
2366 (pass-if (not (< +nan.0 (1+ (ash 3 1023)))))
fe89421e
KR
2367 (pass-if (not (< +nan.0 (1- (ash 3 1023)))))
2368
2369 (with-test-prefix "inum/frac"
2370 (pass-if (< 2 9/4))
2371 (pass-if (< -2 9/4))
2372 (pass-if (< -2 7/4))
2373 (pass-if (< -2 -7/4))
2374 (pass-if (eq? #f (< 2 7/4)))
2375 (pass-if (eq? #f (< 2 -7/4)))
2376 (pass-if (eq? #f (< 2 -9/4)))
2377 (pass-if (eq? #f (< -2 -9/4))))
2378
2379 (with-test-prefix "bignum/frac"
2380 (let ((x (ash 1 2048)))
2381 (pass-if (< x (* 4/3 x)))
2382 (pass-if (< (- x) (* 4/3 x)))
2383 (pass-if (< (- x) (* 2/3 x)))
2384 (pass-if (< (- x) (* -2/3 x)))
2385 (pass-if (eq? #f (< x (* 2/3 x))))
2386 (pass-if (eq? #f (< x (* -2/3 x))))
2387 (pass-if (eq? #f (< x (* -4/3 x))))
2388 (pass-if (eq? #f (< (- x) (* -4/3 x))))))
2389
2390 (with-test-prefix "flonum/frac"
2391 (pass-if (< 0.75 4/3))
2392 (pass-if (< -0.75 4/3))
2393 (pass-if (< -0.75 2/3))
2394 (pass-if (< -0.75 -2/3))
2395 (pass-if (eq? #f (< 0.75 2/3)))
2396 (pass-if (eq? #f (< 0.75 -2/3)))
2397 (pass-if (eq? #f (< 0.75 -4/3)))
2398 (pass-if (eq? #f (< -0.75 -4/3)))
2399
2400 (pass-if (< -inf.0 4/3))
2401 (pass-if (< -inf.0 -4/3))
2402 (pass-if (eq? #f (< +inf.0 4/3)))
2403 (pass-if (eq? #f (< +inf.0 -4/3)))
2404
2405 (pass-if (eq? #f (< +nan.0 4/3)))
2406 (pass-if (eq? #f (< +nan.0 -4/3))))
2407
2408 (with-test-prefix "frac/inum"
2409 (pass-if (< 7/4 2))
2410 (pass-if (< -7/4 2))
2411 (pass-if (< -9/4 2))
2412 (pass-if (< -9/4 -2))
2413 (pass-if (eq? #f (< 9/4 2)))
2414 (pass-if (eq? #f (< 9/4 -2)))
2415 (pass-if (eq? #f (< 7/4 -2)))
2416 (pass-if (eq? #f (< -7/4 -2))))
2417
2418 (with-test-prefix "frac/bignum"
2419 (let ((x (ash 1 2048)))
2420 (pass-if (< (* 2/3 x) x))
2421 (pass-if (< (* -2/3 x) x))
2422 (pass-if (< (* -4/3 x) x))
2423 (pass-if (< (* -4/3 x) (- x)))
2424 (pass-if (eq? #f (< (* 4/3 x) x)))
2425 (pass-if (eq? #f (< (* 4/3 x) (- x))))
2426 (pass-if (eq? #f (< (* 2/3 x) (- x))))
2427 (pass-if (eq? #f (< (* -2/3 x) (- x))))))
2428
2429 (with-test-prefix "frac/flonum"
2430 (pass-if (< 2/3 0.75))
2431 (pass-if (< -2/3 0.75))
2432 (pass-if (< -4/3 0.75))
2433 (pass-if (< -4/3 -0.75))
2434 (pass-if (eq? #f (< 4/3 0.75)))
2435 (pass-if (eq? #f (< 4/3 -0.75)))
2436 (pass-if (eq? #f (< 2/3 -0.75)))
2437 (pass-if (eq? #f (< -2/3 -0.75)))
2438
2439 (pass-if (< 4/3 +inf.0))
2440 (pass-if (< -4/3 +inf.0))
2441 (pass-if (eq? #f (< 4/3 -inf.0)))
2442 (pass-if (eq? #f (< -4/3 -inf.0)))
2443
2444 (pass-if (eq? #f (< 4/3 +nan.0)))
2445 (pass-if (eq? #f (< -4/3 +nan.0))))
2446
2447 (with-test-prefix "frac/frac"
2448 (pass-if (< 2/3 6/7))
2449 (pass-if (< -2/3 6/7))
2450 (pass-if (< -4/3 6/7))
2451 (pass-if (< -4/3 -6/7))
2452 (pass-if (eq? #f (< 4/3 6/7)))
2453 (pass-if (eq? #f (< 4/3 -6/7)))
2454 (pass-if (eq? #f (< 2/3 -6/7)))
2455 (pass-if (eq? #f (< -2/3 -6/7)))))
f29b3454
DH
2456
2457;;;
2458;;; >
2459;;;
2460
7c24e528
RB
2461;; currently not tested -- implementation is trivial
2462;; (> x y) is implemented as (< y x)
2463;; FIXME: tests should probably be added in case we change implementation.
2464
f29b3454
DH
2465;;;
2466;;; <=
2467;;;
2468
7c24e528
RB
2469;; currently not tested -- implementation is trivial
2470;; (<= x y) is implemented as (not (< y x))
2471;; FIXME: tests should probably be added in case we change implementation.
2472
f29b3454
DH
2473;;;
2474;;; >=
2475;;;
2476
7c24e528
RB
2477;; currently not tested -- implementation is trivial
2478;; (>= x y) is implemented as (not (< x y))
2479;; FIXME: tests should probably be added in case we change implementation.
2480
f29b3454
DH
2481;;;
2482;;; zero?
2483;;;
2484
7c24e528 2485(with-test-prefix "zero?"
2519490c 2486 (pass-if (documented? zero?))
c7218482
MW
2487
2488 (pass-if (zero? 0))
2489 (pass-if (zero? 0.0))
2490 (pass-if (zero? -0.0))
2491
2492 (pass-if (zero? 0.0+0.0i))
2493 (pass-if (zero? 0.0-0.0i))
2494 (pass-if (zero? 0.0+0.0i))
2495 (pass-if (zero? -0.0-0.0i))
2496
2497 (pass-if (not (zero? 7)))
4d332f19 2498 (pass-if (not (zero? -7)))
c7218482
MW
2499 (pass-if (not (zero? 1/7)))
2500 (pass-if (not (zero? -inf.0)))
2501 (pass-if (not (zero? +inf.0)))
2502 (pass-if (not (zero? +nan.0)))
4d332f19
DH
2503 (pass-if (not (zero? (+ 1 fixnum-max))))
2504 (pass-if (not (zero? (- 1 fixnum-min))))
2505 (pass-if (not (zero? 1.3)))
c7218482
MW
2506 (pass-if (not (zero? 3.1+4.2i)))
2507 (pass-if (not (zero? 1.0+0.0i)))
2508 (pass-if (not (zero? 0.0-1.0i))))
7c24e528 2509
f29b3454
DH
2510;;;
2511;;; positive?
2512;;;
2513
7c24e528 2514(with-test-prefix "positive?"
2519490c 2515 (pass-if (documented? positive?))
7c24e528
RB
2516 (pass-if (positive? 1))
2517 (pass-if (positive? (+ fixnum-max 1)))
2518 (pass-if (positive? 1.3))
4d332f19
DH
2519 (pass-if (not (positive? 0)))
2520 (pass-if (not (positive? -1)))
2521 (pass-if (not (positive? (- fixnum-min 1))))
2522 (pass-if (not (positive? -1.3))))
7c24e528 2523
f29b3454
DH
2524;;;
2525;;; negative?
2526;;;
2527
7c24e528 2528(with-test-prefix "negative?"
2519490c 2529 (pass-if (documented? negative?))
4d332f19
DH
2530 (pass-if (not (negative? 1)))
2531 (pass-if (not (negative? (+ fixnum-max 1))))
2532 (pass-if (not (negative? 1.3)))
2533 (pass-if (not (negative? 0)))
7c24e528
RB
2534 (pass-if (negative? -1))
2535 (pass-if (negative? (- fixnum-min 1)))
2536 (pass-if (negative? -1.3)))
2537
f29b3454
DH
2538;;;
2539;;; max
2540;;;
2541
adda36ed 2542(with-test-prefix "max"
593a4c2f
KR
2543 (pass-if-exception "no args" exception:wrong-num-args
2544 (max))
2545
2546 (pass-if-exception "one complex" exception:wrong-type-arg
2547 (max 1+i))
2548
2549 (pass-if-exception "inum/complex" exception:wrong-type-arg
2550 (max 123 1+i))
2551 (pass-if-exception "big/complex" exception:wrong-type-arg
2552 (max 9999999999999999999999999999999999999999 1+i))
2553 (pass-if-exception "real/complex" exception:wrong-type-arg
2554 (max 123.0 1+i))
2555 (pass-if-exception "frac/complex" exception:wrong-type-arg
2556 (max 123/456 1+i))
2557
2558 (pass-if-exception "complex/inum" exception:wrong-type-arg
2559 (max 1+i 123))
2560 (pass-if-exception "complex/big" exception:wrong-type-arg
2561 (max 1+i 9999999999999999999999999999999999999999))
2562 (pass-if-exception "complex/real" exception:wrong-type-arg
2563 (max 1+i 123.0))
2564 (pass-if-exception "complex/frac" exception:wrong-type-arg
2565 (max 1+i 123/456))
2566
adda36ed
KR
2567 (let ((big*2 (* fixnum-max 2))
2568 (big*3 (* fixnum-max 3))
2569 (big*4 (* fixnum-max 4))
2570 (big*5 (* fixnum-max 5)))
501da403 2571
2530518e 2572 (with-test-prefix "inum / frac"
2e274311
MW
2573 (pass-if (eqv? 3 (max 3 5/2)))
2574 (pass-if (eqv? 5/2 (max 2 5/2))))
2530518e
KR
2575
2576 (with-test-prefix "frac / inum"
2e274311
MW
2577 (pass-if (eqv? 3 (max 5/2 3)))
2578 (pass-if (eqv? 5/2 (max 5/2 2))))
2579
2580 (with-test-prefix "infinities and NaNs"
2581 ;; +inf.0 beats everything else, including NaNs
2582 (pass-if (eqv? +inf.0 (max +inf.0 123 )))
2583 (pass-if (eqv? +inf.0 (max 123 +inf.0 )))
2584 (pass-if (eqv? +inf.0 (max +inf.0 -123.3 )))
2585 (pass-if (eqv? +inf.0 (max -123.3 +inf.0 )))
2586 (pass-if (eqv? +inf.0 (max +inf.0 -7/2 )))
2587 (pass-if (eqv? +inf.0 (max -7/2 +inf.0 )))
2588 (pass-if (eqv? +inf.0 (max +inf.0 -1e20 )))
2589 (pass-if (eqv? +inf.0 (max -1e20 +inf.0 )))
2590 (pass-if (eqv? +inf.0 (max +inf.0 (- big*2))))
2591 (pass-if (eqv? +inf.0 (max (- big*2) +inf.0 )))
2592 (pass-if (eqv? +inf.0 (max +inf.0 +inf.0 )))
2593 (pass-if (eqv? +inf.0 (max +inf.0 +inf.0 )))
2594 (pass-if (eqv? +inf.0 (max +inf.0 +nan.0 )))
2595 (pass-if (eqv? +inf.0 (max +nan.0 +inf.0 )))
2596 (pass-if (eqv? +inf.0 (max +inf.0 +inf.0 )))
2597
2598 ;; NaNs beat everything except +inf.0
2599 (pass-if (real-nan? (max +nan.0 123 )))
2600 (pass-if (real-nan? (max 123 +nan.0 )))
2601 (pass-if (real-nan? (max +nan.0 123.3 )))
2602 (pass-if (real-nan? (max 123.3 +nan.0 )))
2603 (pass-if (real-nan? (max +nan.0 -7/2 )))
2604 (pass-if (real-nan? (max -7/2 +nan.0 )))
2605 (pass-if (real-nan? (max +nan.0 -1e20 )))
2606 (pass-if (real-nan? (max -1e20 +nan.0 )))
2607 (pass-if (real-nan? (max +nan.0 (- big*2))))
2608 (pass-if (real-nan? (max (- big*2) +nan.0 )))
2609 (pass-if (real-nan? (max +nan.0 -inf.0 )))
2610 (pass-if (real-nan? (max -inf.0 +nan.0 )))
2611 (pass-if (real-nan? (max +nan.0 +nan.0 )))
2612
2613 ;; -inf.0 always loses, except against itself
2614 (pass-if (eqv? -inf.0 (max -inf.0 -inf.0 )))
2615 (pass-if (eqv? -123.0 (max -inf.0 -123 )))
2616 (pass-if (eqv? -123.0 (max -123 -inf.0 )))
2617 (pass-if (eqv? -123.3 (max -inf.0 -123.3 )))
2618 (pass-if (eqv? -123.3 (max -123.3 -inf.0 )))
2619 (pass-if (eqv? -3.5 (max -inf.0 -7/2 )))
2620 (pass-if (eqv? -3.5 (max -7/2 -inf.0 )))
2621 (pass-if (eqv? -1.0e20 (max -inf.0 -1e20 )))
2622 (pass-if (eqv? -1.0e20 (max -1e20 -inf.0 )))
2623 (pass-if (eqv? (exact->inexact (- big*2))
2624 (max -inf.0 (- big*2))))
2625 (pass-if (eqv? (exact->inexact (- big*2))
2626 (max (- big*2) -inf.0 ))))
2627
2628 (with-test-prefix "signed zeroes"
2629 (pass-if (eqv? 0.0 (max 0.0 0.0)))
2630 (pass-if (eqv? 0.0 (max 0.0 -0.0)))
2631 (pass-if (eqv? 0.0 (max -0.0 0.0)))
2632 (pass-if (eqv? -0.0 (max -0.0 -0.0)))
2633 (pass-if (eqv? 0.0 (max -0.0 0 )))
2634 (pass-if (eqv? 0.0 (max 0.0 0 )))
2635 (pass-if (eqv? 0.0 (max 0 -0.0)))
2636 (pass-if (eqv? 0.0 (max 0 0.0)))
2637 (pass-if (eqv? 0 (min 0 0 ))))
23d77957 2638
2530518e 2639 (with-test-prefix "big / frac"
2e274311
MW
2640 (pass-if (eqv? big*2 (max big*2 5/2)))
2641 (pass-if (eqv? 5/2 (max (- big*2) 5/2))))
2530518e
KR
2642
2643 (with-test-prefix "frac / big"
2e274311
MW
2644 (pass-if (eqv? big*2 (max 5/2 big*2)))
2645 (pass-if (eqv? 5/2 (max 5/2 (- big*2)))))
2530518e 2646
23d77957 2647 (with-test-prefix "big / real"
55a8b708 2648 (pass-if (real-nan? (max big*5 +nan.0)))
23d72566
KR
2649 (pass-if (eqv? (exact->inexact big*5) (max big*5 -inf.0)))
2650 (pass-if (eqv? (exact->inexact big*5) (max big*5 1.0)))
2651 (pass-if (eqv? +inf.0 (max big*5 +inf.0)))
2652 (pass-if (eqv? 1.0 (max (- big*5) 1.0))))
23d77957
KR
2653
2654 (with-test-prefix "real / big"
55a8b708 2655 (pass-if (real-nan? (max +nan.0 big*5)))
23d72566
KR
2656 (pass-if (eqv? (exact->inexact big*5) (max -inf.0 big*5)))
2657 (pass-if (eqv? (exact->inexact big*5) (max 1.0 big*5)))
2658 (pass-if (eqv? +inf.0 (max +inf.0 big*5)))
2659 (pass-if (eqv? 1.0 (max 1.0 (- big*5)))))
23d77957 2660
2530518e 2661 (with-test-prefix "frac / frac"
2e274311
MW
2662 (pass-if (eqv? 2/3 (max 1/2 2/3)))
2663 (pass-if (eqv? 2/3 (max 2/3 1/2)))
2664 (pass-if (eqv? -1/2 (max -1/2 -2/3)))
2665 (pass-if (eqv? -1/2 (max -2/3 -1/2))))
2530518e 2666
23d77957 2667 (with-test-prefix "real / real"
55a8b708
MW
2668 (pass-if (real-nan? (max 123.0 +nan.0)))
2669 (pass-if (real-nan? (max +nan.0 123.0)))
2670 (pass-if (real-nan? (max +nan.0 +nan.0)))
2e274311
MW
2671 (pass-if (eqv? 456.0 (max 123.0 456.0)))
2672 (pass-if (eqv? 456.0 (max 456.0 123.0)))))
adda36ed
KR
2673
2674 ;; in gmp prior to 4.2, mpz_cmp_d ended up treating Inf as 2^1024, make
2675 ;; sure we've avoided that
2676 (for-each (lambda (b)
2677 (pass-if (list b +inf.0)
2e274311 2678 (eqv? +inf.0 (max b +inf.0)))
adda36ed 2679 (pass-if (list +inf.0 b)
2e274311 2680 (eqv? +inf.0 (max b +inf.0)))
adda36ed 2681 (pass-if (list b -inf.0)
2e274311 2682 (eqv? (exact->inexact b) (max b -inf.0)))
adda36ed 2683 (pass-if (list -inf.0 b)
2e274311 2684 (eqv? (exact->inexact b) (max b -inf.0))))
adda36ed
KR
2685 (list (1- (ash 1 1024))
2686 (ash 1 1024)
2687 (1+ (ash 1 1024))
2688 (- (1- (ash 1 1024)))
2689 (- (ash 1 1024))
501da403
KR
2690 (- (1+ (ash 1 1024)))))
2691
2692 ;; in gmp prior to 4.2, mpz_cmp_d ended up treating NaN as 3*2^1023, make
2693 ;; sure we've avoided that
55a8b708
MW
2694 (pass-if (real-nan? (max (ash 1 2048) +nan.0)))
2695 (pass-if (real-nan? (max +nan.0 (ash 1 2048)))))
adda36ed 2696
f29b3454
DH
2697;;;
2698;;; min
2699;;;
2700
7c24e528
RB
2701;; FIXME: unfinished...
2702
2703(with-test-prefix "min"
593a4c2f
KR
2704 (pass-if-exception "no args" exception:wrong-num-args
2705 (min))
2706
2707 (pass-if-exception "one complex" exception:wrong-type-arg
2708 (min 1+i))
2709
2710 (pass-if-exception "inum/complex" exception:wrong-type-arg
2711 (min 123 1+i))
2712 (pass-if-exception "big/complex" exception:wrong-type-arg
2713 (min 9999999999999999999999999999999999999999 1+i))
2714 (pass-if-exception "real/complex" exception:wrong-type-arg
2715 (min 123.0 1+i))
2716 (pass-if-exception "frac/complex" exception:wrong-type-arg
2717 (min 123/456 1+i))
2718
2719 (pass-if-exception "complex/inum" exception:wrong-type-arg
2720 (min 1+i 123))
2721 (pass-if-exception "complex/big" exception:wrong-type-arg
2722 (min 1+i 9999999999999999999999999999999999999999))
2723 (pass-if-exception "complex/real" exception:wrong-type-arg
2724 (min 1+i 123.0))
2725 (pass-if-exception "complex/frac" exception:wrong-type-arg
2726 (min 1+i 123/456))
2727
7c24e528
RB
2728 (let ((big*2 (* fixnum-max 2))
2729 (big*3 (* fixnum-max 3))
2730 (big*4 (* fixnum-max 4))
2731 (big*5 (* fixnum-max 5)))
23d77957 2732
d389e966 2733 (pass-if (documented? min))
2e274311
MW
2734 (pass-if (eqv? 1 (min 7 3 1 5)))
2735 (pass-if (eqv? 1 (min 1 7 3 5)))
2736 (pass-if (eqv? 1 (min 7 3 5 1)))
2737 (pass-if (eqv? -7 (min 2 3 4 -2 5 -7 1 -1 4 2)))
2738 (pass-if (eqv? -7 (min -7 2 3 4 -2 5 1 -1 4 2)))
2739 (pass-if (eqv? -7 (min 2 3 4 -2 5 1 -1 4 2 -7)))
2740 (pass-if (eqv? big*2 (min big*3 big*5 big*2 big*4)))
2741 (pass-if (eqv? big*2 (min big*2 big*3 big*5 big*4)))
2742 (pass-if (eqv? big*2 (min big*3 big*5 big*4 big*2)))
7c24e528 2743 (pass-if
2e274311 2744 (eqv? (- fixnum-min 1) (min 2 4 (- fixnum-min 1) 3 (* 2 fixnum-max))))
7c24e528 2745 (pass-if
2e274311 2746 (eqv? (- fixnum-min 1) (min (- fixnum-min 1) 2 4 3 (* 2 fixnum-max))))
7c24e528 2747 (pass-if
2e274311 2748 (eqv? (- fixnum-min 1) (min 2 4 3 (* 2 fixnum-max) (- fixnum-min 1))))
23d77957 2749
2530518e 2750 (with-test-prefix "inum / frac"
2e274311
MW
2751 (pass-if (eqv? 5/2 (min 3 5/2)))
2752 (pass-if (eqv? 2 (min 2 5/2))))
2530518e
KR
2753
2754 (with-test-prefix "frac / inum"
2e274311
MW
2755 (pass-if (eqv? 5/2 (min 5/2 3)))
2756 (pass-if (eqv? 2 (min 5/2 2))))
2757
2758 (with-test-prefix "infinities and NaNs"
2759 ;; -inf.0 beats everything else, including NaNs
2760 (pass-if (eqv? -inf.0 (min -inf.0 123 )))
2761 (pass-if (eqv? -inf.0 (min 123 -inf.0 )))
2762 (pass-if (eqv? -inf.0 (min -inf.0 -123.3 )))
2763 (pass-if (eqv? -inf.0 (min -123.3 -inf.0 )))
2764 (pass-if (eqv? -inf.0 (min -inf.0 -7/2 )))
2765 (pass-if (eqv? -inf.0 (min -7/2 -inf.0 )))
2766 (pass-if (eqv? -inf.0 (min -inf.0 -1e20 )))
2767 (pass-if (eqv? -inf.0 (min -1e20 -inf.0 )))
2768 (pass-if (eqv? -inf.0 (min -inf.0 (- big*2))))
2769 (pass-if (eqv? -inf.0 (min (- big*2) -inf.0 )))
2770 (pass-if (eqv? -inf.0 (min -inf.0 +inf.0 )))
2771 (pass-if (eqv? -inf.0 (min +inf.0 -inf.0 )))
2772 (pass-if (eqv? -inf.0 (min -inf.0 +nan.0 )))
2773 (pass-if (eqv? -inf.0 (min +nan.0 -inf.0 )))
2774 (pass-if (eqv? -inf.0 (min -inf.0 -inf.0 )))
2775
2776 ;; NaNs beat everything except -inf.0
2777 (pass-if (real-nan? (min +nan.0 123 )))
2778 (pass-if (real-nan? (min 123 +nan.0 )))
2779 (pass-if (real-nan? (min +nan.0 123.3 )))
2780 (pass-if (real-nan? (min 123.3 +nan.0 )))
2781 (pass-if (real-nan? (min +nan.0 -7/2 )))
2782 (pass-if (real-nan? (min -7/2 +nan.0 )))
2783 (pass-if (real-nan? (min +nan.0 -1e20 )))
2784 (pass-if (real-nan? (min -1e20 +nan.0 )))
2785 (pass-if (real-nan? (min +nan.0 (- big*2))))
2786 (pass-if (real-nan? (min (- big*2) +nan.0 )))
2787 (pass-if (real-nan? (min +nan.0 +inf.0 )))
2788 (pass-if (real-nan? (min +inf.0 +nan.0 )))
2789 (pass-if (real-nan? (min +nan.0 +nan.0 )))
2790
2791 ;; +inf.0 always loses, except against itself
2792 (pass-if (eqv? +inf.0 (min +inf.0 +inf.0 )))
2793 (pass-if (eqv? -123.0 (min +inf.0 -123 )))
2794 (pass-if (eqv? -123.0 (min -123 +inf.0 )))
2795 (pass-if (eqv? -123.3 (min +inf.0 -123.3 )))
2796 (pass-if (eqv? -123.3 (min -123.3 +inf.0 )))
2797 (pass-if (eqv? -3.5 (min +inf.0 -7/2 )))
2798 (pass-if (eqv? -3.5 (min -7/2 +inf.0 )))
2799 (pass-if (eqv? -1.0e20 (min +inf.0 -1e20 )))
2800 (pass-if (eqv? -1.0e20 (min -1e20 +inf.0 )))
2801 (pass-if (eqv? (exact->inexact (- big*2))
2802 (min +inf.0 (- big*2))))
2803 (pass-if (eqv? (exact->inexact (- big*2))
2804 (min (- big*2) +inf.0 ))))
2805
2806 (with-test-prefix "signed zeroes"
2807 (pass-if (eqv? 0.0 (min 0.0 0.0)))
2808 (pass-if (eqv? -0.0 (min 0.0 -0.0)))
2809 (pass-if (eqv? -0.0 (min -0.0 0.0)))
2810 (pass-if (eqv? -0.0 (min -0.0 -0.0)))
2811 (pass-if (eqv? -0.0 (min -0.0 0 )))
2812 (pass-if (eqv? 0.0 (min 0.0 0 )))
2813 (pass-if (eqv? -0.0 (min 0 -0.0)))
2814 (pass-if (eqv? 0.0 (min 0 0.0)))
2815 (pass-if (eqv? 0 (min 0 0 ))))
23d77957 2816
2530518e 2817 (with-test-prefix "big / frac"
2e274311
MW
2818 (pass-if (eqv? 5/2 (min big*2 5/2)))
2819 (pass-if (eqv? (- big*2) (min (- big*2) 5/2))))
2530518e
KR
2820
2821 (with-test-prefix "frac / big"
2e274311
MW
2822 (pass-if (eqv? 5/2 (min 5/2 big*2)))
2823 (pass-if (eqv? (- big*2) (min 5/2 (- big*2)))))
2530518e 2824
23d77957 2825 (with-test-prefix "big / real"
55a8b708 2826 (pass-if (real-nan? (min big*5 +nan.0)))
23d72566
KR
2827 (pass-if (eqv? (exact->inexact big*5) (min big*5 +inf.0)))
2828 (pass-if (eqv? -inf.0 (min big*5 -inf.0)))
2829 (pass-if (eqv? 1.0 (min big*5 1.0)))
2830 (pass-if (eqv? (exact->inexact (- big*5)) (min (- big*5) 1.0))))
23d77957
KR
2831
2832 (with-test-prefix "real / big"
55a8b708 2833 (pass-if (real-nan? (min +nan.0 big*5)))
23d72566
KR
2834 (pass-if (eqv? (exact->inexact big*5) (min +inf.0 big*5)))
2835 (pass-if (eqv? -inf.0 (min -inf.0 big*5)))
2836 (pass-if (eqv? 1.0 (min 1.0 big*5)))
2837 (pass-if (eqv? (exact->inexact (- big*5)) (min 1.0 (- big*5)))))
23d77957 2838
2530518e 2839 (with-test-prefix "frac / frac"
2e274311
MW
2840 (pass-if (eqv? 1/2 (min 1/2 2/3)))
2841 (pass-if (eqv? 1/2 (min 2/3 1/2)))
2842 (pass-if (eqv? -2/3 (min -1/2 -2/3)))
2843 (pass-if (eqv? -2/3 (min -2/3 -1/2))))
2530518e 2844
23d77957 2845 (with-test-prefix "real / real"
55a8b708
MW
2846 (pass-if (real-nan? (min 123.0 +nan.0)))
2847 (pass-if (real-nan? (min +nan.0 123.0)))
2848 (pass-if (real-nan? (min +nan.0 +nan.0)))
2e274311
MW
2849 (pass-if (eqv? 123.0 (min 123.0 456.0)))
2850 (pass-if (eqv? 123.0 (min 456.0 123.0)))))
23d77957
KR
2851
2852
adda36ed
KR
2853 ;; in gmp prior to 4.2, mpz_cmp_d ended up treating Inf as 2^1024, make
2854 ;; sure we've avoided that
2855 (for-each (lambda (b)
2856 (pass-if (list b +inf.0)
2e274311 2857 (eqv? (exact->inexact b) (min b +inf.0)))
adda36ed 2858 (pass-if (list +inf.0 b)
2e274311 2859 (eqv? (exact->inexact b) (min b +inf.0)))
adda36ed 2860 (pass-if (list b -inf.0)
2e274311 2861 (eqv? -inf.0 (min b -inf.0)))
adda36ed 2862 (pass-if (list -inf.0 b)
2e274311 2863 (eqv? -inf.0 (min b -inf.0))))
adda36ed
KR
2864 (list (1- (ash 1 1024))
2865 (ash 1 1024)
2866 (1+ (ash 1 1024))
2867 (- (1- (ash 1 1024)))
2868 (- (ash 1 1024))
501da403
KR
2869 (- (1+ (ash 1 1024)))))
2870
2871 ;; in gmp prior to 4.2, mpz_cmp_d ended up treating NaN as 3*2^1023, make
2872 ;; sure we've avoided that
55a8b708
MW
2873 (pass-if (real-nan? (min (- (ash 1 2048)) (- +nan.0))))
2874 (pass-if (real-nan? (min (- +nan.0) (- (ash 1 2048))))))
adda36ed 2875
f29b3454
DH
2876;;;
2877;;; +
2878;;;
2879
0c57673a 2880(with-test-prefix/c&e "+"
f29b3454 2881
d389e966 2882 (pass-if "documented?"
0c57673a
LC
2883 (documented? +))
2884
c7218482
MW
2885 (pass-if "simple"
2886 (and (eqv? 7 (+ 3 4))
2887 (eqv? 3 (+ 3))
2888 (eqv? 0 (+))))
2889
2890 (pass-if "exactness propagation"
2891 (and (eqv? 8 (+ 3 5))
2892 (eqv? 8.0 (+ 3 5.0))
2893 (eqv? 8.0 (+ 3.0 5))
2894 (eqv? 8.0 (+ 3.0 5.0))
2895
2896 (eqv? 5/6 (+ 1/2 1/3))
2897 (eqv? 5.5 (+ 1/2 5.0))
2898 (eqv? 3.25 (+ 3.0 1/4))))
2899
2900 (pass-if "signed zeroes"
2901 (and (eqv? 0.0 (+ 0.0))
2902 (eqv? -0.0 (+ -0.0))
2903 (eqv? 0.0 (+ 0.0 0.0))
2904 (eqv? 0.0 (+ 0.0 -0.0))
2905 (eqv? 0.0 (+ -0.0 0.0))
2906 (eqv? -0.0 (+ -0.0 -0.0))))
2907
2908 (pass-if "NaNs"
2909 (and (real-nan? (+ +nan.0 +nan.0))
2910 (real-nan? (+ 0 +nan.0))
2911 (real-nan? (+ +nan.0 0))
2912 (real-nan? (+ 1 +nan.0))
2913 (real-nan? (+ +nan.0 1))
2914 (real-nan? (+ -1 +nan.0))
2915 (real-nan? (+ +nan.0 -1))
2916 (real-nan? (+ -7/2 +nan.0))
2917 (real-nan? (+ +nan.0 -7/2))
2918 (real-nan? (+ 1e20 +nan.0))
2919 (real-nan? (+ +nan.0 1e20))
2920 (real-nan? (+ +inf.0 +nan.0))
2921 (real-nan? (+ +nan.0 +inf.0))
2922 (real-nan? (+ -inf.0 +nan.0))
2923 (real-nan? (+ +nan.0 -inf.0))
2924 (real-nan? (+ (* fixnum-max 2) +nan.0))
2925 (real-nan? (+ +nan.0 (* fixnum-max 2)))))
2926
2927 (pass-if "infinities"
2928 (and (eqv? +inf.0 (+ +inf.0 +inf.0))
2929 (eqv? -inf.0 (+ -inf.0 -inf.0))
2930 (real-nan? (+ +inf.0 -inf.0))
2931 (real-nan? (+ -inf.0 +inf.0))))
2932
0c57673a
LC
2933 ;; The maximum fixnum on a 32-bit architecture: 2^29 - 1.
2934 (pass-if "fixnum + fixnum = bignum (32-bit)"
2935 (eqv? 536870912 (+ 536870910 2)))
2936
2937 ;; The maximum fixnum on a 64-bit architecture: 2^61 - 1.
2938 (pass-if "fixnum + fixnum = bignum (64-bit)"
2939 (eqv? 2305843009213693952 (+ 2305843009213693950 2)))
2940
2941 (pass-if "bignum + fixnum = fixnum"
2942 (eqv? 0 (+ (1+ most-positive-fixnum) most-negative-fixnum))))
f29b3454 2943
f29b3454
DH
2944;;;
2945;;; -
2946;;;
2947
0c57673a 2948(with-test-prefix/c&e "-"
072e6de2 2949
b5c40589
MW
2950 (pass-if "double-negation of fixnum-min: ="
2951 (= fixnum-min (- (- fixnum-min))))
2952 (pass-if "double-negation of fixnum-min: eqv?"
2953 (eqv? fixnum-min (- (- fixnum-min))))
2954 (pass-if "double-negation of fixnum-min: equal?"
2955 (equal? fixnum-min (- (- fixnum-min))))
2956
2957 (pass-if "binary double-negation of fixnum-min: ="
2958 (= fixnum-min (- 0 (- 0 fixnum-min))))
2959 (pass-if "binary double-negation of fixnum-min: eqv?"
2960 (eqv? fixnum-min (- 0 (- 0 fixnum-min))))
2961 (pass-if "binary double-negation of fixnum-min: equal?"
2962 (equal? fixnum-min (- 0 (- 0 fixnum-min))))
2963
9b9ef10c
MW
2964 (pass-if "signed zeroes"
2965 (and (eqv? +0.0 (- -0.0))
2966 (eqv? -0.0 (- +0.0))
2967 (eqv? 0.0 (- 0.0 0.0))
2968 (eqv? 0.0 (- 0.0 -0.0))
2969 (eqv? 0.0 (- -0.0 -0.0))
2970 (eqv? -0.0 (- -0.0 0.0))))
2971
2972 (pass-if "exactness propagation"
2973 (and (eqv? 3 (- 8 5))
2974 (eqv? 3.0 (- 8 5.0))
2975 (eqv? 3.0 (- 8.0 5))
2976 (eqv? 3.0 (- 8.0 5.0))
2977 (eqv? -1/6 (- 1/3 1/2))
2978 (eqv? -4.5 (- 1/2 5.0))
2979 (eqv? 2.75 (- 3.0 1/4))))
2980
2981 (pass-if "infinities"
2982 (and (eqv? +inf.0 (- +inf.0 -inf.0))
2983 (eqv? -inf.0 (- -inf.0 +inf.0))
2984 (real-nan? (- +inf.0 +inf.0))
2985 (real-nan? (- -inf.0 -inf.0))))
2986
2987 (pass-if "NaNs"
2988 (and (real-nan? (- +nan.0 +nan.0))
2989 (real-nan? (- 0 +nan.0))
2990 (real-nan? (- +nan.0 0))
2991 (real-nan? (- 1 +nan.0))
2992 (real-nan? (- +nan.0 1))
2993 (real-nan? (- -1 +nan.0))
2994 (real-nan? (- +nan.0 -1))
2995 (real-nan? (- -7/2 +nan.0))
2996 (real-nan? (- +nan.0 -7/2))
2997 (real-nan? (- 1e20 +nan.0))
2998 (real-nan? (- +nan.0 1e20))
2999 (real-nan? (- +inf.0 +nan.0))
3000 (real-nan? (- +nan.0 +inf.0))
3001 (real-nan? (- -inf.0 +nan.0))
3002 (real-nan? (- +nan.0 -inf.0))
3003 (real-nan? (- (* fixnum-max 2) +nan.0))
3004 (real-nan? (- +nan.0 (* fixnum-max 2)))))
3005
3006 (pass-if "(eqv? fixnum-min (- (- fixnum-min)))"
3007 (eqv? fixnum-min (- (- fixnum-min))))
3008 (pass-if "(eqv? fixnum-min (- 0 (- 0 fixnum-min)))"
3009 (eqv? fixnum-min (- 0 (- 0 fixnum-min))))
3010 (pass-if "(eqv? fixnum-num (apply - (list (apply - (list fixnum-min)))))"
3011 (eqv? fixnum-min (apply - (list (apply - (list fixnum-min))))))
3012
072e6de2
KR
3013 (pass-if "-inum - +bignum"
3014 (= #x-100000000000000000000000000000001
ef016629
KR
3015 (- -1 #x100000000000000000000000000000000)))
3016
3017 (pass-if "big - inum"
3018 (= #xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
3019 (- #x100000000000000000000000000000000 1)))
3020
3021 (pass-if "big - -inum"
3022 (= #x100000000000000000000000000000001
0c57673a
LC
3023 (- #x100000000000000000000000000000000 -1)))
3024
3025 ;; The mininum fixnum on a 32-bit architecture: -2^29.
3026 (pass-if "fixnum - fixnum = bignum (32-bit)"
3027 (eqv? -536870912 (- -536870910 2)))
3028
3029 ;; The minimum fixnum on a 64-bit architecture: -2^61.
3030 (pass-if "fixnum - fixnum = bignum (64-bit)"
3031 (eqv? -2305843009213693952 (- -2305843009213693950 2)))
3032
3033 (pass-if "bignum - fixnum = fixnum"
3034 (eqv? most-positive-fixnum (- (1+ most-positive-fixnum) 1))))
072e6de2 3035
f29b3454
DH
3036;;;
3037;;; *
3038;;;
3039
65ea251e
KR
3040(with-test-prefix "*"
3041
b5c40589
MW
3042 (with-test-prefix "double-negation of fixnum-min"
3043 (pass-if (= fixnum-min (* -1 (* -1 fixnum-min))))
3044 (pass-if (eqv? fixnum-min (* -1 (* -1 fixnum-min))))
3045 (pass-if (equal? fixnum-min (* -1 (* -1 fixnum-min))))
3046 (pass-if (= fixnum-min (* (* fixnum-min -1) -1)))
3047 (pass-if (eqv? fixnum-min (* (* fixnum-min -1) -1)))
3048 (pass-if (equal? fixnum-min (* (* fixnum-min -1) -1))))
3049
c7218482
MW
3050 (with-test-prefix "signed zeroes"
3051 (pass-if (eqv? +0.0 (* +0.0 +0.0)))
3052 (pass-if (eqv? -0.0 (* -0.0 +0.0)))
3053 (pass-if (eqv? +0.0 (* -0.0 -0.0)))
3054 (pass-if (eqv? -0.0 (* +0.0 -0.0)))
3055 (pass-if (eqv? +0.0+0.0i (* +i +0.0)))
3056 (pass-if (eqv? +0.0-0.0i (* -i +0.0)))
3057 (pass-if (eqv? -0.0-0.0i (* +i -0.0)))
3058 (pass-if (eqv? -0.0+0.0i (* -i -0.0))))
3059
5e791807
MW
3060 (with-test-prefix "exactness propagation"
3061 (pass-if (eqv? -0.0 (* 0 -1.0 )))
3062 (pass-if (eqv? 0.0 (* 0 1.0 )))
3063 (pass-if (eqv? -0.0 (* -1.0 0 )))
3064 (pass-if (eqv? 0.0 (* 1.0 0 )))
3065 (pass-if (eqv? 0 (* 0 1/2 )))
3066 (pass-if (eqv? 0 (* 1/2 0 )))
3067 (pass-if (eqv? 0.0+0.0i (* 0 1+i )))
3068 (pass-if (eqv? 0.0+0.0i (* 1+i 0 )))
3069 (pass-if (eqv? -1.0 (* 1 -1.0 )))
3070 (pass-if (eqv? 1.0 (* 1 1.0 )))
3071 (pass-if (eqv? -1.0 (* -1.0 1 )))
3072 (pass-if (eqv? 1.0 (* 1.0 1 )))
3073 (pass-if (eqv? 1/2 (* 1 1/2 )))
3074 (pass-if (eqv? 1/2 (* 1/2 1 )))
3075 (pass-if (eqv? 1+i (* 1 1+i )))
3076 (pass-if (eqv? 1+i (* 1+i 1 ))))
3077
3078 (with-test-prefix "propagation of NaNs"
3079 (pass-if (real-nan? (* +nan.0 +nan.0)))
3080 (pass-if (real-nan? (* +nan.0 1 )))
3081 (pass-if (real-nan? (* +nan.0 -1 )))
3082 (pass-if (real-nan? (* +nan.0 -7/2 )))
3083 (pass-if (real-nan? (* +nan.0 1e20 )))
3084 (pass-if (real-nan? (* 1 +nan.0)))
3085 (pass-if (real-nan? (* -1 +nan.0)))
3086 (pass-if (real-nan? (* -7/2 +nan.0)))
3087 (pass-if (real-nan? (* 1e20 +nan.0)))
3088 (pass-if (real-nan? (* +inf.0 +nan.0)))
3089 (pass-if (real-nan? (* +nan.0 +inf.0)))
3090 (pass-if (real-nan? (* -inf.0 +nan.0)))
3091 (pass-if (real-nan? (* +nan.0 -inf.0)))
3092 (pass-if (real-nan? (* (* fixnum-max 2) +nan.0)))
3093 (pass-if (real-nan? (* +nan.0 (* fixnum-max 2))))
3094
c7218482
MW
3095 (pass-if (real-nan? (* 0 +nan.0 )))
3096 (pass-if (real-nan? (* +nan.0 0 )))
3097 (pass-if (almost-real-nan? (* 0 +nan.0+i)))
3098 (pass-if (almost-real-nan? (* +nan.0+i 0 )))
5e791807
MW
3099
3100 (pass-if (imaginary-nan? (* 0 +nan.0i )))
3101 (pass-if (imaginary-nan? (* +nan.0i 0 )))
3102 (pass-if (imaginary-nan? (* 0 1+nan.0i )))
3103 (pass-if (imaginary-nan? (* 1+nan.0i 0 )))
3104
3105 (pass-if (complex-nan? (* 0 +nan.0+nan.0i )))
3106 (pass-if (complex-nan? (* +nan.0+nan.0i 0 ))))
3107
3108 (with-test-prefix "infinities"
3109 (pass-if (eqv? +inf.0 (* +inf.0 5 )))
3110 (pass-if (eqv? -inf.0 (* +inf.0 -5 )))
3111 (pass-if (eqv? +inf.0 (* +inf.0 73.1)))
3112 (pass-if (eqv? -inf.0 (* +inf.0 -9.2)))
3113 (pass-if (eqv? +inf.0 (* +inf.0 5/2)))
3114 (pass-if (eqv? -inf.0 (* +inf.0 -5/2)))
3115 (pass-if (eqv? -inf.0 (* -5 +inf.0)))
3116 (pass-if (eqv? +inf.0 (* 73.1 +inf.0)))
3117 (pass-if (eqv? -inf.0 (* -9.2 +inf.0)))
3118 (pass-if (eqv? +inf.0 (* 5/2 +inf.0)))
3119 (pass-if (eqv? -inf.0 (* -5/2 +inf.0)))
3120
3121 (pass-if (eqv? -inf.0 (* -inf.0 5 )))
3122 (pass-if (eqv? +inf.0 (* -inf.0 -5 )))
3123 (pass-if (eqv? -inf.0 (* -inf.0 73.1)))
3124 (pass-if (eqv? +inf.0 (* -inf.0 -9.2)))
3125 (pass-if (eqv? -inf.0 (* -inf.0 5/2)))
3126 (pass-if (eqv? +inf.0 (* -inf.0 -5/2)))
3127 (pass-if (eqv? +inf.0 (* -5 -inf.0)))
3128 (pass-if (eqv? -inf.0 (* 73.1 -inf.0)))
3129 (pass-if (eqv? +inf.0 (* -9.2 -inf.0)))
3130 (pass-if (eqv? -inf.0 (* 5/2 -inf.0)))
3131 (pass-if (eqv? +inf.0 (* -5/2 -inf.0)))
3132
3133 (pass-if (real-nan? (* 0.0 +inf.0)))
3134 (pass-if (real-nan? (* -0.0 +inf.0)))
3135 (pass-if (real-nan? (* +inf.0 0.0)))
3136 (pass-if (real-nan? (* +inf.0 -0.0)))
3137
3138 (pass-if (real-nan? (* 0.0 -inf.0)))
3139 (pass-if (real-nan? (* -0.0 -inf.0)))
3140 (pass-if (real-nan? (* -inf.0 0.0)))
3141 (pass-if (real-nan? (* -inf.0 -0.0)))
3142
3143 (pass-if (real-nan? (* 0 +inf.0 )))
3144 (pass-if (real-nan? (* +inf.0 0 )))
5e791807
MW
3145 (pass-if (real-nan? (* 0 -inf.0 )))
3146 (pass-if (real-nan? (* -inf.0 0 )))
c7218482
MW
3147
3148 (pass-if (almost-real-nan? (* 0 +inf.0+i)))
3149 (pass-if (almost-real-nan? (* +inf.0+i 0 )))
3150 (pass-if (almost-real-nan? (* 0 -inf.0+i)))
3151 (pass-if (almost-real-nan? (* -inf.0+i 0 )))
5e791807
MW
3152
3153 (pass-if (imaginary-nan? (* 0 +inf.0i )))
3154 (pass-if (imaginary-nan? (* +inf.0i 0 )))
3155 (pass-if (imaginary-nan? (* 0 1+inf.0i )))
3156 (pass-if (imaginary-nan? (* 1+inf.0i 0 )))
3157
3158 (pass-if (imaginary-nan? (* 0 -inf.0i )))
3159 (pass-if (imaginary-nan? (* -inf.0i 0 )))
3160 (pass-if (imaginary-nan? (* 0 1-inf.0i )))
3161 (pass-if (imaginary-nan? (* 1-inf.0i 0 )))
3162
3163 (pass-if (complex-nan? (* 0 +inf.0+inf.0i )))
3164 (pass-if (complex-nan? (* +inf.0+inf.0i 0 )))
3165
3166 (pass-if (complex-nan? (* 0 +inf.0-inf.0i )))
3167 (pass-if (complex-nan? (* -inf.0+inf.0i 0 ))))
3168
23d72566
KR
3169 (with-test-prefix "inum * bignum"
3170
3171 (pass-if "0 * 2^256 = 0"
3172 (eqv? 0 (* 0 (ash 1 256)))))
3173
3174 (with-test-prefix "inum * flonum"
3175
5e791807
MW
3176 (pass-if "0 * 1.0 = 0.0"
3177 (eqv? 0.0 (* 0 1.0))))
23d72566
KR
3178
3179 (with-test-prefix "inum * complex"
3180
5e791807
MW
3181 (pass-if "0 * 1+1i = 0.0+0.0i"
3182 (eqv? 0.0+0.0i (* 0 1+1i))))
23d72566
KR
3183
3184 (with-test-prefix "inum * frac"
3185
3186 (pass-if "0 * 2/3 = 0"
3187 (eqv? 0 (* 0 2/3))))
3188
3189 (with-test-prefix "bignum * inum"
3190
3191 (pass-if "2^256 * 0 = 0"
3192 (eqv? 0 (* (ash 1 256) 0))))
3193
3194 (with-test-prefix "flonum * inum"
5e791807
MW
3195 (pass-if "1.0 * 0 = 0.0"
3196 (eqv? 0.0 (* 1.0 0))))
23d72566
KR
3197
3198 (with-test-prefix "complex * inum"
5e791807
MW
3199 (pass-if "1+1i * 0 = 0.0+0.0i"
3200 (eqv? 0.0+0.0i (* 1+1i 0))))
23d72566 3201
65ea251e
KR
3202 (pass-if "complex * bignum"
3203 (let ((big (ash 1 90)))
3204 (= (make-rectangular big big)
23d72566
KR
3205 (* 1+1i big))))
3206
3207 (with-test-prefix "frac * inum"
3208
3209 (pass-if "2/3 * 0 = 0"
3210 (eqv? 0 (* 2/3 0)))))
65ea251e 3211
f29b3454
DH
3212;;;
3213;;; /
3214;;;
3215
1b3a7932
DH
3216(with-test-prefix "/"
3217
b5c40589
MW
3218 (with-test-prefix "double-negation of fixnum-min"
3219 (pass-if (= fixnum-min (/ (/ fixnum-min -1) -1)))
3220 (pass-if (eqv? fixnum-min (/ (/ fixnum-min -1) -1)))
3221 (pass-if (equal? fixnum-min (/ (/ fixnum-min -1) -1))))
3222
d389e966 3223 (pass-if "documented?"
1b3a7932
DH
3224 (documented? /))
3225
3226 (with-test-prefix "division by zero"
3227
3228 (pass-if-exception "(/ 0)"
2f359170 3229 exception:numerical-overflow
1b3a7932
DH
3230 (/ 0))
3231
cdf52e3d
MV
3232 (pass-if "(/ 0.0)"
3233 (= +inf.0 (/ 0.0)))
80074d77 3234
1b3a7932 3235 (pass-if-exception "(/ 1 0)"
2f359170 3236 exception:numerical-overflow
80074d77
DH
3237 (/ 1 0))
3238
cdf52e3d
MV
3239 (pass-if "(/ 1 0.0)"
3240 (= +inf.0 (/ 1 0.0)))
80074d77
DH
3241
3242 (pass-if-exception "(/ bignum 0)"
2f359170 3243 exception:numerical-overflow
80074d77
DH
3244 (/ (+ fixnum-max 1) 0))
3245
cdf52e3d
MV
3246 (pass-if "(/ bignum 0.0)"
3247 (= +inf.0 (/ (+ fixnum-max 1) 0.0)))
80074d77
DH
3248
3249 (pass-if-exception "(/ 1.0 0)"
2f359170 3250 exception:numerical-overflow
80074d77
DH
3251 (/ 1.0 0))
3252
cdf52e3d
MV
3253 (pass-if "(/ 1.0 0.0)"
3254 (= +inf.0 (/ 1.0 0.0)))
80074d77
DH
3255
3256 (pass-if-exception "(/ +i 0)"
2f359170 3257 exception:numerical-overflow
80074d77
DH
3258 (/ +i 0))
3259
cdf52e3d
MV
3260 (pass-if "(/ +i 0.0)"
3261 (= +inf.0 (imag-part (/ +i 0.0)))))
469b963c 3262
2f359170
KR
3263 (with-test-prefix "1/complex"
3264
3265 (pass-if "0+1i"
3266 (eqv? 0-1i (/ 0+1i)))
3267
3268 ;; in guile 1.6 through 1.6.7 this incorrectly resulted in nans
3269 (pass-if "0-1i"
3270 (eqv? 0+1i (/ 0-1i)))
3271
3272 (pass-if "1+1i"
3273 (eqv? 0.5-0.5i (/ 1+1i)))
3274
3275 (pass-if "1-1i"
3276 (eqv? 0.5+0.5i (/ 1-1i)))
3277
3278 (pass-if "-1+1i"
3279 (eqv? -0.5-0.5i (/ -1+1i)))
3280
3281 (pass-if "-1-1i"
3282 (eqv? -0.5+0.5i (/ -1-1i)))
469b963c
MV
3283
3284 (pass-if "(/ 3+4i)"
3285 (= (/ 3+4i) 0.12-0.16i))
3286
3287 (pass-if "(/ 4+3i)"
3288 (= (/ 4+3i) 0.16-0.12i))
3289
2f359170
KR
3290 (pass-if "(/ 1e200+1e200i)"
3291 (= (/ 1e200+1e200i) 5.0e-201-5.0e-201i)))
469b963c 3292
2f359170 3293 (with-test-prefix "inum/complex"
469b963c
MV
3294
3295 (pass-if "(/ 25 3+4i)"
3296 (= (/ 25 3+4i) 3.0-4.0i))
3297
3298 (pass-if "(/ 25 4+3i)"
2f359170 3299 (= (/ 25 4+3i) 4.0-3.0i)))
469b963c 3300
2f359170
KR
3301 (with-test-prefix "complex/complex"
3302
3303 (pass-if "(/ 25+125i 3+4i)"
3304 (= (/ 25+125i 3+4i) 23.0+11.0i))
3305
3306 (pass-if "(/ 25+125i 4+3i)"
3307 (= (/ 25+125i 4+3i) 19.0+17.0i))))
1b3a7932 3308
f29b3454
DH
3309;;;
3310;;; truncate
3311;;;
3312
14a6784c
KR
3313(with-test-prefix "truncate"
3314 (pass-if (= 1 (truncate 1.75)))
3315 (pass-if (= 1 (truncate 1.5)))
3316 (pass-if (= 1 (truncate 1.25)))
3317 (pass-if (= 0 (truncate 0.75)))
3318 (pass-if (= 0 (truncate 0.5)))
3319 (pass-if (= 0 (truncate 0.0)))
3320 (pass-if (= 0 (truncate -0.5)))
3321 (pass-if (= -1 (truncate -1.25)))
3322 (pass-if (= -1 (truncate -1.5))))
3323
f29b3454
DH
3324;;;
3325;;; round
3326;;;
3327
14a6784c
KR
3328(with-test-prefix "round"
3329 (pass-if (= 2 (round 1.75)))
3330 (pass-if (= 2 (round 1.5)))
3331 (pass-if (= 1 (round 1.25)))
3332 (pass-if (= 1 (round 0.75)))
3333 (pass-if (= 0 (round 0.5)))
3334 (pass-if (= 0 (round 0.0)))
3335 (pass-if (= 0 (round -0.5)))
3336 (pass-if (= -1 (round -1.25)))
abff733b
KR
3337 (pass-if (= -2 (round -1.5)))
3338
3339 (with-test-prefix "inum"
3340 (pass-if "0"
3341 (and (= 0 (round 0))
3342 (exact? (round 0))))
3343
3344 (pass-if "1"
3345 (and (= 1 (round 1))
3346 (exact? (round 1))))
3347
3348 (pass-if "-1"
3349 (and (= -1 (round -1))
3350 (exact? (round -1)))))
3351
3352 (with-test-prefix "bignum"
3353 (let ((x (1+ most-positive-fixnum)))
3354 (pass-if "(1+ most-positive-fixnum)"
3355 (and (= x (round x))
3356 (exact? (round x)))))
3357
3358 (let ((x (1- most-negative-fixnum)))
3359 (pass-if "(1- most-negative-fixnum)"
3360 (and (= x (round x))
3361 (exact? (round x))))))
3362
6203b5f5
KR
3363 (with-test-prefix "frac"
3364 (define (=exact x y)
3365 (and (= x y)
3366 (exact? y)))
3367
3368 (pass-if (=exact -2 (round -7/3)))
3369 (pass-if (=exact -2 (round -5/3)))
3370 (pass-if (=exact -1 (round -4/3)))
3371 (pass-if (=exact -1 (round -2/3)))
3372 (pass-if (=exact 0 (round -1/3)))
3373 (pass-if (=exact 0 (round 1/3)))
3374 (pass-if (=exact 1 (round 2/3)))
3375 (pass-if (=exact 1 (round 4/3)))
3376 (pass-if (=exact 2 (round 5/3)))
3377 (pass-if (=exact 2 (round 7/3)))
3378
3379 (pass-if (=exact -3 (round -17/6)))
3380 (pass-if (=exact -3 (round -16/6)))
3381 (pass-if (=exact -2 (round -15/6)))
3382 (pass-if (=exact -2 (round -14/6)))
3383 (pass-if (=exact -2 (round -13/6)))
3384 (pass-if (=exact -2 (round -11/6)))
3385 (pass-if (=exact -2 (round -10/6)))
3386 (pass-if (=exact -2 (round -9/6)))
3387 (pass-if (=exact -1 (round -8/6)))
3388 (pass-if (=exact -1 (round -7/6)))
3389 (pass-if (=exact -1 (round -5/6)))
3390 (pass-if (=exact -1 (round -4/6)))
3391 (pass-if (=exact 0 (round -3/6)))
3392 (pass-if (=exact 0 (round -2/6)))
3393 (pass-if (=exact 0 (round -1/6)))
3394 (pass-if (=exact 0 (round 1/6)))
3395 (pass-if (=exact 0 (round 2/6)))
3396 (pass-if (=exact 0 (round 3/6)))
3397 (pass-if (=exact 1 (round 4/6)))
3398 (pass-if (=exact 1 (round 5/6)))
3399 (pass-if (=exact 1 (round 7/6)))
3400 (pass-if (=exact 1 (round 8/6)))
3401 (pass-if (=exact 2 (round 9/6)))
3402 (pass-if (=exact 2 (round 10/6)))
3403 (pass-if (=exact 2 (round 11/6)))
3404 (pass-if (=exact 2 (round 13/6)))
3405 (pass-if (=exact 2 (round 14/6)))
3406 (pass-if (=exact 2 (round 15/6)))
3407 (pass-if (=exact 3 (round 16/6)))
3408 (pass-if (=exact 3 (round 17/6))))
3409
abff733b
KR
3410 (with-test-prefix "real"
3411 (pass-if "0.0"
3412 (and (= 0.0 (round 0.0))
3413 (inexact? (round 0.0))))
3414
3415 (pass-if "1.0"
3416 (and (= 1.0 (round 1.0))
3417 (inexact? (round 1.0))))
3418
3419 (pass-if "-1.0"
3420 (and (= -1.0 (round -1.0))
3421 (inexact? (round -1.0))))
3422
3423 (pass-if "-3.1"
3424 (and (= -3.0 (round -3.1))
3425 (inexact? (round -3.1))))
3426
3427 (pass-if "3.1"
3428 (and (= 3.0 (round 3.1))
3429 (inexact? (round 3.1))))
3430
3431 (pass-if "3.9"
3432 (and (= 4.0 (round 3.9))
3433 (inexact? (round 3.9))))
3434
3435 (pass-if "-3.9"
3436 (and (= -4.0 (round -3.9))
3437 (inexact? (round -3.9))))
3438
3439 (pass-if "1.5"
3440 (and (= 2.0 (round 1.5))
3441 (inexact? (round 1.5))))
3442
3443 (pass-if "2.5"
3444 (and (= 2.0 (round 2.5))
3445 (inexact? (round 2.5))))
3446
3447 (pass-if "3.5"
3448 (and (= 4.0 (round 3.5))
3449 (inexact? (round 3.5))))
3450
3451 (pass-if "-1.5"
3452 (and (= -2.0 (round -1.5))
3453 (inexact? (round -1.5))))
3454
3455 (pass-if "-2.5"
3456 (and (= -2.0 (round -2.5))
3457 (inexact? (round -2.5))))
3458
3459 (pass-if "-3.5"
3460 (and (= -4.0 (round -3.5))
3461 (inexact? (round -3.5))))
3462
3463 ;; prior to guile 1.6.5, on an IEEE system an inexact 2^53-1 (ie. a
3464 ;; float with mantissa all ones) came out as 2^53 from `round' (except
3465 ;; on i386 and m68k systems using the coprocessor and optimizing, where
3466 ;; extra precision hid the problem)
3467 (pass-if "2^53-1"
3468 (let ((x (exact->inexact (1- (ash 1 53)))))
3469 (and (= x (round x))
3470 (inexact? (round x)))))
3471 (pass-if "-(2^53-1)"
3472 (let ((x (exact->inexact (- (1- (ash 1 53))))))
3473 (and (= x (round x))
3474 (inexact? (round x)))))))
14a6784c 3475
f29b3454
DH
3476;;;
3477;;; exact->inexact
3478;;;
3479
a1fb3b1c
KR
3480(with-test-prefix "exact->inexact"
3481
3482 ;; Test "(exact->inexact n)", expect "want".
3483 ;; "i" is a index, for diagnostic purposes.
3484 (define (try-i i n want)
3485 (with-test-prefix (list i n want)
3486 (with-test-prefix "pos"
3487 (let ((got (exact->inexact n)))
3488 (pass-if "inexact?" (inexact? got))
3489 (pass-if (list "=" got) (= want got))))
3490 (set! n (- n))
3491 (set! want (- want))
3492 (with-test-prefix "neg"
3493 (let ((got (exact->inexact n)))
3494 (pass-if "inexact?" (inexact? got))
3495 (pass-if (list "=" got) (= want got))))))
3496
3497 (with-test-prefix "2^i, no round"
3498 (do ((i 0 (1+ i))
3499 (n 1 (* 2 n))
3500 (want 1.0 (* 2.0 want)))
3501 ((> i 100))
3502 (try-i i n want)))
3503
3504 (with-test-prefix "2^i+1, no round"
3505 (do ((i 1 (1+ i))
3506 (n 3 (1- (* 2 n)))
3507 (want 3.0 (- (* 2.0 want) 1.0)))
3508 ((>= i dbl-mant-dig))
3509 (try-i i n want)))
3510
3511 (with-test-prefix "(2^i+1)*2^100, no round"
3512 (do ((i 1 (1+ i))
3513 (n 3 (1- (* 2 n)))
3514 (want 3.0 (- (* 2.0 want) 1.0)))
3515 ((>= i dbl-mant-dig))
3516 (try-i i (ash n 100) (ash-flo want 100))))
3517
3518 ;; bit pattern: 1111....11100.00
3519 ;; <-mantdig-><-i->
3520 ;;
3521 (with-test-prefix "mantdig ones then zeros, no rounding"
3522 (do ((i 0 (1+ i))
3523 (n (- (ash 1 dbl-mant-dig) 1) (* 2 n))
3524 (want (- (ash-flo 1.0 dbl-mant-dig) 1.0) (* 2.0 want)))
3525 ((> i 100))
3526 (try-i i n want)))
3527
3528 ;; bit pattern: 1111....111011..1
3529 ;; <-mantdig-> <-i->
3530 ;; This sort of value was incorrectly rounded upwards in Guile 1.6.4 when
3531 ;; i >= 11 (that's when the total is 65 or more bits).
3532 ;;
3533 (with-test-prefix "mantdig ones then 011..11, round down"
3534 (do ((i 0 (1+ i))
3535 (n (- (ash 1 (+ 1 dbl-mant-dig)) 2) (+ 1 (* 2 n)))
3536 (want (- (ash-flo 1.0 (+ 1 dbl-mant-dig)) 2.0) (* 2.0 want)))
3537 ((> i 100))
3538 (try-i i n want)))
3539
3540 ;; bit pattern: 1111....111100..001
3541 ;; <-mantdig-> <--i->
3542 ;;
3543 (with-test-prefix "mantdig ones then 100..001, round up"
3544 (do ((i 0 (1+ i))
3545 (n (- (ash 1 (+ 2 dbl-mant-dig)) 1) (1- (* 2 n)))
3546 (want (ash-flo 1.0 (+ 2 dbl-mant-dig)) (* 2.0 want)))
3547 ((> i 100))
3548 (try-i i n want)))
3549
3550 ;; bit pattern: 1000....000100..001
3551 ;; <-mantdig-> <--i->
3552 ;;
3553 (with-test-prefix "2^mantdig then 100..001, round up"
3554 (do ((i 0 (1+ i))
3555 (n (- (ash 1 (+ 2 dbl-mant-dig)) 1) (1- (* 2 n)))
3556 (want (+ (ash-flo 1.0 (+ 2 dbl-mant-dig)) 4.0) (* 2.0 want)))
3557 ((> i 100))
23f2b9a3
KR
3558 (try-i i n want)))
3559
3560 (pass-if "frac big/big"
3561 (let ((big (ash 1 256)))
3562 (= 1.0 (exact->inexact (/ (1+ big) big)))))
3563
3564 ;; In guile 1.8.0 this failed, giving back "nan" because it tried to
3565 ;; convert the num and den to doubles, resulting in infs.
3566 (pass-if "frac big/big, exceeding double"
3567 (let ((big (ash 1 4096)))
3568 (= 1.0 (exact->inexact (/ (1+ big) big))))))
a1fb3b1c 3569
f29b3454
DH
3570;;;
3571;;; floor
3572;;;
3573
3574;;;
3575;;; ceiling
3576;;;
3577
46f2c0f1
RB
3578;;;
3579;;; expt
3580;;;
3581
3582(with-test-prefix "expt"
2519490c 3583 (pass-if (documented? expt))
bfe1f03a
MW
3584
3585 ;;
3586 ;; expt no longer requires its first argument to be a scheme number,
3587 ;; for the sake of extensibility, and expt calls integer-expt for
3588 ;; integer powers. To raise to a positive power, all that is required
3589 ;; is that it can be multiplied using `*'. For negative powers we
3590 ;; must also be able to find the reciprocal. If we try to raise #t to
3591 ;; any power other than 0 or 1 it may throw an exception, depending on
3592 ;; whether * has been defined for #t. However, when raising to the 0
3593 ;; or 1 power, the first argument is not manipulated at all.
3594 ;;
3595 ;; (pass-if-exception "non-numeric base" exception:wrong-type-arg
3596 ;; (expt #t 0))
3597 ;;
3598
01c7284a
MW
3599 (pass-if (eqv? 1 (expt 0 0)))
3600 (pass-if (eqv? 1 (expt 0.0 0)))
3601 (pass-if (eqv? 1.0 (expt 0 0.0)))
3602 (pass-if (eqv? 1.0 (expt 0.0 0.0)))
55a8b708
MW
3603 (pass-if (real-nan? (expt 0 -1)))
3604 (pass-if (real-nan? (expt 0 -1.0)))
3605 (pass-if (real-nan? (expt 0.0 -1)))
3606 (pass-if (real-nan? (expt 0.0 -1.0)))
01c7284a
MW
3607 (pass-if (eqv? 0 (expt 0 3)))
3608 (pass-if (= 0 (expt 0 4.0)))
3609 (pass-if (eqv? 0.0 (expt 0.0 5)))
3610 (pass-if (eqv? 0.0 (expt 0.0 6.0)))
3611 (pass-if (eqv? -2742638075.5 (expt -2742638075.5 1)))
3612 (pass-if (eqv? (* -2742638075.5 -2742638075.5)
3613 (expt -2742638075.5 2)))
3614 (pass-if (eqv? 4.0 (expt -2.0 2.0)))
3615 (pass-if (eqv? -1/8 (expt -2 -3)))
3616 (pass-if (eqv? -0.125 (expt -2.0 -3)))
3617 (pass-if (eqv? -0.125 (expt -2 -3.0)))
3618 (pass-if (eqv? -0.125 (expt -2.0 -3.0)))
3619 (pass-if (eqv? 0.25 (expt 2.0 -2.0)))
c7218482 3620 (pass-if (test-eqv? (* -1.0+0.0i 12398 12398) (expt +12398i 2.0)))
01c7284a
MW
3621 (pass-if (eqv-loosely? +i (expt -1 0.5)))
3622 (pass-if (eqv-loosely? +i (expt -1 1/2)))
8e43ed5d
AW
3623 (pass-if (eqv-loosely? 1.0+1.7320508075688i (expt -8 1/3)))
3624 (pass-if (eqv? +inf.0 (expt 2 +inf.0)))
3625 (pass-if (eqv? +inf.0 (expt 2.0 +inf.0)))
3626 (pass-if (eqv? 0.0 (expt 2 -inf.0)))
3627 (pass-if (eqv? 0.0 (expt 2.0 -inf.0))))
01c7284a 3628
46f2c0f1 3629
8deddc94
MW
3630;;;
3631;;; sin
3632;;;
3633
3634(with-test-prefix "sin"
3635 (pass-if (eqv? 0 (sin 0)))
3636 (pass-if (eqv? 0.0 (sin 0.0)))
3637 (pass-if (eqv-loosely? 1.0 (sin 1.57)))
3638 (pass-if (eqv-loosely? +1.175i (sin +i)))
3639 (pass-if (real-nan? (sin +nan.0)))
3640 (pass-if (real-nan? (sin +inf.0)))
3641 (pass-if (real-nan? (sin -inf.0))))
3642
3643;;;
3644;;; cos
3645;;;
3646
3647(with-test-prefix "cos"
3648 (pass-if (eqv? 1 (cos 0)))
3649 (pass-if (eqv? 1.0 (cos 0.0)))
3650 (pass-if (eqv-loosely? 0.0 (cos 1.57)))
3651 (pass-if (eqv-loosely? 1.543 (cos +i)))
3652 (pass-if (real-nan? (cos +nan.0)))
3653 (pass-if (real-nan? (cos +inf.0)))
3654 (pass-if (real-nan? (cos -inf.0))))
3655
3656;;;
3657;;; tan
3658;;;
3659
3660(with-test-prefix "tan"
3661 (pass-if (eqv? 0 (tan 0)))
3662 (pass-if (eqv? 0.0 (tan 0.0)))
3663 (pass-if (eqv-loosely? 1.0 (tan 0.785)))
3664 (pass-if (eqv-loosely? +0.76i (tan +i)))
3665 (pass-if (real-nan? (tan +nan.0)))
3666 (pass-if (real-nan? (tan +inf.0)))
3667 (pass-if (real-nan? (tan -inf.0))))
3668
3669;;;
3670;;; asin
3671;;;
3672
3673(with-test-prefix "asin"
3674 (pass-if (complex-nan? (asin +nan.0)))
3675 (pass-if (eqv? 0 (asin 0)))
3676 (pass-if (eqv? 0.0 (asin 0.0))))
3677
3678;;;
3679;;; acos
3680;;;
3681
3682(with-test-prefix "acos"
3683 (pass-if (complex-nan? (acos +nan.0)))
3684 (pass-if (eqv? 0 (acos 1)))
3685 (pass-if (eqv? 0.0 (acos 1.0))))
3686
3687;;;
3688;;; atan
3689;;;
3690;;; FIXME: add tests for two-argument atan
3691;;;
3692(with-test-prefix "atan"
3693 (pass-if (real-nan? (atan +nan.0)))
3694 (pass-if (eqv? 0 (atan 0)))
3695 (pass-if (eqv? 0.0 (atan 0.0)))
3696 (pass-if (eqv-loosely? 1.57 (atan +inf.0)))
3697 (pass-if (eqv-loosely? -1.57 (atan -inf.0))))
3698
3699;;;
3700;;; sinh
3701;;;
3702
3703(with-test-prefix "sinh"
3704 (pass-if (= 0 (sinh 0)))
3705 (pass-if (= 0.0 (sinh 0.0))))
3706
3707;;;
3708;;; cosh
3709;;;
3710
3711(with-test-prefix "cosh"
3712 (pass-if (= 1 (cosh 0)))
3713 (pass-if (= 1.0 (cosh 0.0))))
3714
3715;;;
3716;;; tanh
3717;;;
3718
3719(with-test-prefix "tanh"
3720 (pass-if (= 0 (tanh 0)))
3721 (pass-if (= 0.0 (tanh 0.0))))
3722
14a6784c
KR
3723;;;
3724;;; asinh
3725;;;
3726
3727(with-test-prefix "asinh"
8deddc94
MW
3728 (pass-if (= 0 (asinh 0)))
3729 (pass-if (= 0.0 (asinh 0.0))))
14a6784c
KR
3730
3731;;;
3732;;; acosh
3733;;;
3734
3735(with-test-prefix "acosh"
8deddc94
MW
3736 (pass-if (= 0 (acosh 1)))
3737 (pass-if (= 0.0 (acosh 1.0))))
14a6784c
KR
3738
3739;;;
3740;;; atanh
3741;;;
3742
3743(with-test-prefix "atanh"
8deddc94
MW
3744 (pass-if (= 0 (atanh 0)))
3745 (pass-if (= 0.0 (atanh 0.0))))
14a6784c 3746
f29b3454
DH
3747;;;
3748;;; make-rectangular
3749;;;
c7218482
MW
3750
3751(with-test-prefix "make-rectangular"
3752 (pass-if (real? (make-rectangular 5.0 0 )))
3753 (pass-if (not (real? (make-rectangular 5.0 0.0))))
3754 (pass-if (not (real? (make-rectangular 5.0 -0.0)))))
f29b3454
DH
3755
3756;;;
3757;;; make-polar
3758;;;
3759
d40681ec
KR
3760(with-test-prefix "make-polar"
3761 (define pi 3.14159265358979323846)
3762 (define (almost= x y)
3763 (> 0.01 (magnitude (- x y))))
3764
c7218482
MW
3765 (pass-if (real? (make-polar 0 1.0)))
3766 (pass-if (real? (make-polar 5.0 0 )))
3767 (pass-if (not (real? (make-polar 5.0 0.0))))
3768 (pass-if (not (real? (make-polar 5.0 -0.0))))
3769
3770 (pass-if (eqv? 0 (make-polar 0 0)))
3771 (pass-if (eqv? 0 (make-polar 0 123.456)))
3772 (pass-if (eqv? 1 (make-polar 1 0)))
3773 (pass-if (eqv? -1 (make-polar -1 0)))
d40681ec
KR
3774
3775 (pass-if (almost= 0+i (make-polar 1 (* 0.5 pi))))
3776 (pass-if (almost= -1 (make-polar 1 (* 1.0 pi))))
3777 (pass-if (almost= 0-i (make-polar 1 (* 1.5 pi))))
3778 (pass-if (almost= 1 (make-polar 1 (* 2.0 pi)))))
3779
f29b3454
DH
3780;;;
3781;;; real-part
3782;;;
3783
2519490c
MW
3784(with-test-prefix "real-part"
3785 (pass-if (documented? real-part))
3786 (pass-if (eqv? 5.0 (real-part 5.0)))
3787 (pass-if (eqv? 0.0 (real-part +5.0i)))
3788 (pass-if (eqv? 5 (real-part 5)))
3789 (pass-if (eqv? 1/5 (real-part 1/5)))
3790 (pass-if (eqv? (1+ fixnum-max) (real-part (1+ fixnum-max)))))
3791
f29b3454
DH
3792;;;
3793;;; imag-part
3794;;;
3795
2519490c
MW
3796(with-test-prefix "imag-part"
3797 (pass-if (documented? imag-part))
c7218482 3798 (pass-if (eqv? 0 (imag-part 5.0)))
2519490c
MW
3799 (pass-if (eqv? 5.0 (imag-part +5.0i)))
3800 (pass-if (eqv? 0 (imag-part 5)))
3801 (pass-if (eqv? 0 (imag-part 1/5)))
3802 (pass-if (eqv? 0 (imag-part (1+ fixnum-max)))))
3803
f29b3454
DH
3804;;;
3805;;; magnitude
3806;;;
3807
d40681ec 3808(with-test-prefix "magnitude"
2519490c 3809 (pass-if (documented? magnitude))
d40681ec
KR
3810 (pass-if (= 0 (magnitude 0)))
3811 (pass-if (= 1 (magnitude 1)))
3812 (pass-if (= 1 (magnitude -1)))
3813 (pass-if (= 1 (magnitude 0+i)))
3814 (pass-if (= 1 (magnitude 0-i)))
3815 (pass-if (= 5 (magnitude 3+4i)))
3816 (pass-if (= 5 (magnitude 3-4i)))
3817 (pass-if (= 5 (magnitude -3+4i)))
3818 (pass-if (= 5 (magnitude -3-4i))))
3819
f29b3454
DH
3820;;;
3821;;; angle
3822;;;
3823
cfc9fc1c
KR
3824(with-test-prefix "angle"
3825 (define pi 3.14159265358979323846)
3826 (define (almost= x y)
3827 (> 0.01 (magnitude (- x y))))
3828
2519490c
MW
3829 (pass-if (documented? angle))
3830
cfc9fc1c
KR
3831 (pass-if "inum +ve" (= 0 (angle 1)))
3832 (pass-if "inum -ve" (almost= pi (angle -1)))
3833
3834 (pass-if "bignum +ve" (= 0 (angle (1+ fixnum-max))))
3835 (pass-if "bignum -ve" (almost= pi (angle (1- fixnum-min))))
3836
3837 (pass-if "flonum +ve" (= 0 (angle 1.5)))
3838 (pass-if "flonum -ve" (almost= pi (angle -1.5))))
3839
f29b3454
DH
3840;;;
3841;;; inexact->exact
3842;;;
300c6a76 3843
1259cb26 3844(with-test-prefix "inexact->exact"
2519490c
MW
3845 (pass-if (documented? inexact->exact))
3846
9dd9857f 3847 (pass-if-exception "+inf" exception:out-of-range
a409f865 3848 (inexact->exact +inf.0))
1259cb26 3849
9dd9857f 3850 (pass-if-exception "-inf" exception:out-of-range
a409f865 3851 (inexact->exact -inf.0))
1259cb26 3852
9dd9857f 3853 (pass-if-exception "nan" exception:out-of-range
a409f865 3854 (inexact->exact +nan.0))
1259cb26
KR
3855
3856 (with-test-prefix "2.0**i to exact and back"
3857 (do ((i 0 (1+ i))
3858 (n 1.0 (* 2.0 n)))
3859 ((> i 100))
3860 (pass-if (list i n)
3861 (= n (inexact->exact (exact->inexact n)))))))
3862
c1122753
KR
3863;;;
3864;;; integer-expt
3865;;;
3866
3867(with-test-prefix "integer-expt"
2519490c 3868 (pass-if (documented? integer-expt))
c1122753
KR
3869
3870 (pass-if-exception "2^+inf" exception:wrong-type-arg
3871 (integer-expt 2 +inf.0))
3872 (pass-if-exception "2^-inf" exception:wrong-type-arg
3873 (integer-expt 2 -inf.0))
3874 (pass-if-exception "2^nan" exception:wrong-type-arg
01c7284a
MW
3875 (integer-expt 2 +nan.0))
3876
3877 (pass-if (eqv? 1 (integer-expt 0 0)))
3878 (pass-if (eqv? 1 (integer-expt 0.0 0)))
55a8b708
MW
3879 (pass-if (real-nan? (integer-expt 0 -1)))
3880 (pass-if (real-nan? (integer-expt 0.0 -1)))
01c7284a
MW
3881 (pass-if (eqv? 0 (integer-expt 0 3)))
3882 (pass-if (eqv? 0.0 (integer-expt 0.0 5)))
3883 (pass-if (eqv? -2742638075.5 (integer-expt -2742638075.5 1)))
3884 (pass-if (eqv? (* -2742638075.5 -2742638075.5)
3885 (integer-expt -2742638075.5 2)))
3886 (pass-if (eqv? 4.0 (integer-expt -2.0 2)))
3887 (pass-if (eqv? -1/8 (integer-expt -2 -3)))
3888 (pass-if (eqv? -0.125 (integer-expt -2.0 -3)))
3889 (pass-if (eqv? 0.25 (integer-expt 2.0 -2)))
c7218482 3890 (pass-if (test-eqv? (* -1.0+0.0i 12398 12398) (integer-expt +12398.0i 2))))
01c7284a 3891
c1122753 3892
a04a3604
KR
3893;;;
3894;;; integer-length
3895;;;
3896
3897(with-test-prefix "integer-length"
2519490c 3898 (pass-if (documented? integer-length))
a04a3604
KR
3899
3900 (with-test-prefix "-2^i, ...11100..00"
3901 (do ((n -1 (ash n 1))
3902 (i 0 (1+ i)))
3903 ((> i 256))
3904 (pass-if (list n "expect" i)
3905 (= i (integer-length n)))))
3906
3907 (with-test-prefix "-2^i+1 ...11100..01"
3908 (do ((n -3 (logxor 3 (ash n 1)))
3909 (i 2 (1+ i)))
3910 ((> i 256))
3911 (pass-if n
3912 (= i (integer-length n)))))
3913
3914 (with-test-prefix "-2^i-1 ...111011..11"
3915 (do ((n -2 (1+ (ash n 1)))
3916 (i 1 (1+ i)))
3917 ((> i 256))
3918 (pass-if n
3919 (= i (integer-length n))))))
3920
8ab3d8a0
KR
3921;;;
3922;;; log
3923;;;
3924
3925(with-test-prefix "log"
2519490c 3926 (pass-if (documented? log))
8ab3d8a0
KR
3927
3928 (pass-if-exception "no args" exception:wrong-num-args
3929 (log))
3930 (pass-if-exception "two args" exception:wrong-num-args
3931 (log 123 456))
3932
3933 (pass-if (negative-infinity? (log 0)))
3934 (pass-if (negative-infinity? (log 0.0)))
3935 (pass-if (eqv? 0.0 (log 1)))
3936 (pass-if (eqv? 0.0 (log 1.0)))
3937 (pass-if (eqv-loosely? 1.0 (log const-e)))
3938 (pass-if (eqv-loosely? 2.0 (log const-e^2)))
3939 (pass-if (eqv-loosely? -1.0 (log const-1/e)))
3940
3941 (pass-if (eqv-loosely? 1.0+1.57079i (log 0+2.71828i)))
3942 (pass-if (eqv-loosely? 1.0-1.57079i (log 0-2.71828i)))
3943
3944 (pass-if (eqv-loosely? 0.0+3.14159i (log -1.0)))
3945 (pass-if (eqv-loosely? 1.0+3.14159i (log -2.71828)))
3946 (pass-if (eqv-loosely? 2.0+3.14159i (log (* -2.71828 2.71828)))))
3947
3948;;;
3949;;; log10
3950;;;
3951
3952(with-test-prefix "log10"
2519490c 3953 (pass-if (documented? log10))
8ab3d8a0
KR
3954
3955 (pass-if-exception "no args" exception:wrong-num-args
3956 (log10))
3957 (pass-if-exception "two args" exception:wrong-num-args
3958 (log10 123 456))
3959
3960 (pass-if (negative-infinity? (log10 0)))
3961 (pass-if (negative-infinity? (log10 0.0)))
3962 (pass-if (eqv? 0.0 (log10 1)))
3963 (pass-if (eqv? 0.0 (log10 1.0)))
3964 (pass-if (eqv-loosely? 1.0 (log10 10.0)))
3965 (pass-if (eqv-loosely? 2.0 (log10 100.0)))
3966 (pass-if (eqv-loosely? -1.0 (log10 0.1)))
3967
3968 (pass-if (eqv-loosely? 1.0+0.68218i (log10 0+10.0i)))
3969 (pass-if (eqv-loosely? 1.0-0.68218i (log10 0-10.0i)))
3970
3971 (pass-if (eqv-loosely? 0.0+1.36437i (log10 -1)))
3972 (pass-if (eqv-loosely? 1.0+1.36437i (log10 -10)))
3973 (pass-if (eqv-loosely? 2.0+1.36437i (log10 -100))))
3974
abff733b
KR
3975;;;
3976;;; logbit?
3977;;;
3978
3979(with-test-prefix "logbit?"
2519490c
MW
3980 (pass-if (documented? logbit?))
3981
abff733b
KR
3982 (pass-if (eq? #f (logbit? 0 0)))
3983 (pass-if (eq? #f (logbit? 1 0)))
3984 (pass-if (eq? #f (logbit? 31 0)))
3985 (pass-if (eq? #f (logbit? 32 0)))
3986 (pass-if (eq? #f (logbit? 33 0)))
3987 (pass-if (eq? #f (logbit? 63 0)))
3988 (pass-if (eq? #f (logbit? 64 0)))
3989 (pass-if (eq? #f (logbit? 65 0)))
3990
3991 ;; prior to guile 1.6.5, testing bit 32, 64 etc of value 1 would wrap
3992 ;; around and return #t where it ought to be #f
3993 (pass-if (eq? #t (logbit? 0 1)))
3994 (pass-if (eq? #f (logbit? 1 1)))
3995 (pass-if (eq? #f (logbit? 31 1)))
3996 (pass-if (eq? #f (logbit? 32 1)))
3997 (pass-if (eq? #f (logbit? 33 1)))
3998 (pass-if (eq? #f (logbit? 63 1)))
3999 (pass-if (eq? #f (logbit? 64 1)))
4000 (pass-if (eq? #f (logbit? 65 1)))
4001 (pass-if (eq? #f (logbit? 128 1)))
4002
4003 (pass-if (eq? #t (logbit? 0 -1)))
4004 (pass-if (eq? #t (logbit? 1 -1)))
4005 (pass-if (eq? #t (logbit? 31 -1)))
4006 (pass-if (eq? #t (logbit? 32 -1)))
4007 (pass-if (eq? #t (logbit? 33 -1)))
4008 (pass-if (eq? #t (logbit? 63 -1)))
4009 (pass-if (eq? #t (logbit? 64 -1)))
4010 (pass-if (eq? #t (logbit? 65 -1))))
4011
300c6a76
KR
4012;;;
4013;;; logcount
4014;;;
4015
4016(with-test-prefix "logcount"
2519490c 4017 (pass-if (documented? logcount))
300c6a76
KR
4018
4019 (with-test-prefix "-2^i, meaning ...11100..00"
4020 (do ((n -1 (ash n 1))
4021 (i 0 (1+ i)))
4022 ((> i 256))
795c0bae
KR
4023 (pass-if n
4024 (= i (logcount n)))))
4025
4026 (with-test-prefix "2^i"
4027 (do ((n 1 (ash n 1))
4028 (i 0 (1+ i)))
4029 ((> i 256))
4030 (pass-if n
4031 (= 1 (logcount n)))))
4032
4033 (with-test-prefix "2^i-1"
4034 (do ((n 0 (1+ (ash n 1)))
4035 (i 0 (1+ i)))
4036 ((> i 256))
300c6a76
KR
4037 (pass-if n
4038 (= i (logcount n))))))
795c0bae 4039
afd09cfb
KR
4040;;;
4041;;; logior
4042;;;
4043
4044(with-test-prefix "logior"
2519490c
MW
4045 (pass-if (documented? logior))
4046
afd09cfb
KR
4047 (pass-if (eqv? -1 (logior (ash -1 1) 1)))
4048
4049 ;; check that bignum or bignum+inum args will reduce to an inum
4050 (let ()
4051 (define (test x y)
4052 (pass-if (list x y '=> -1)
4053 (eqv? -1 (logior x y)))
4054 (pass-if (list y x '=> -1)
4055 (eqv? -1 (logior y x))))
4056 (test (ash -1 8) #xFF)
4057 (test (ash -1 28) #x0FFFFFFF)
4058 (test (ash -1 29) #x1FFFFFFF)
4059 (test (ash -1 30) #x3FFFFFFF)
4060 (test (ash -1 31) #x7FFFFFFF)
4061 (test (ash -1 32) #xFFFFFFFF)
4062 (test (ash -1 33) #x1FFFFFFFF)
4063 (test (ash -1 60) #x0FFFFFFFFFFFFFFF)
4064 (test (ash -1 61) #x1FFFFFFFFFFFFFFF)
4065 (test (ash -1 62) #x3FFFFFFFFFFFFFFF)
4066 (test (ash -1 63) #x7FFFFFFFFFFFFFFF)
4067 (test (ash -1 64) #xFFFFFFFFFFFFFFFF)
4068 (test (ash -1 65) #x1FFFFFFFFFFFFFFFF)
4069 (test (ash -1 128) #xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF)))
4070
1ec2dd6f
KR
4071;;;
4072;;; lognot
4073;;;
4074
4075(with-test-prefix "lognot"
2519490c
MW
4076 (pass-if (documented? lognot))
4077
1ec2dd6f
KR
4078 (pass-if (= -1 (lognot 0)))
4079 (pass-if (= 0 (lognot -1)))
4080 (pass-if (= -2 (lognot 1)))
4081 (pass-if (= 1 (lognot -2)))
4082
4083 (pass-if (= #x-100000000000000000000000000000000
4084 (lognot #xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF)))
4085 (pass-if (= #xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
4086 (lognot #x-100000000000000000000000000000000))))
8ab3d8a0
KR
4087
4088;;;
4089;;; sqrt
4090;;;
4091
4092(with-test-prefix "sqrt"
2519490c 4093 (pass-if (documented? sqrt))
8ab3d8a0
KR
4094
4095 (pass-if-exception "no args" exception:wrong-num-args
4096 (sqrt))
4097 (pass-if-exception "two args" exception:wrong-num-args
4098 (sqrt 123 456))
4099
4100 (pass-if (eqv? 0.0 (sqrt 0)))
4101 (pass-if (eqv? 0.0 (sqrt 0.0)))
4102 (pass-if (eqv? 1.0 (sqrt 1.0)))
4103 (pass-if (eqv-loosely? 2.0 (sqrt 4.0)))
4104 (pass-if (eqv-loosely? 31.62 (sqrt 1000.0)))
4105
4106 (pass-if (eqv? +1.0i (sqrt -1.0)))
4107 (pass-if (eqv-loosely? +2.0i (sqrt -4.0)))
4108 (pass-if (eqv-loosely? +31.62i (sqrt -1000.0)))
4109
4110 (pass-if "+i swings back to 45deg angle"
4111 (eqv-loosely? +0.7071+0.7071i (sqrt +1.0i)))
4112
4113 ;; Note: glibc 2.3 csqrt() had a bug affecting this test case, so if it
4114 ;; fails check whether that's the cause (there's a configure test to
4115 ;; reject it, but when cross-compiling we assume the C library is ok).
4116 (pass-if "-100i swings back to 45deg down"
4117 (eqv-loosely? +7.071-7.071i (sqrt -100.0i))))
4118
ff62c168
MW
4119;;;
4120;;; euclidean/
4121;;; euclidean-quotient
4122;;; euclidean-remainder
4123;;; centered/
4124;;; centered-quotient
4125;;; centered-remainder
4126;;;
4127
4128(with-test-prefix "Number-theoretic division"
4129
4130 ;; Tests that (lo <= x < hi),
4131 ;; but allowing for imprecision
4132 ;; if x is inexact.
4133 (define (test-within-range? lo hi x)
4134 (if (exact? x)
4135 (and (<= lo x) (< x hi))
4136 (let ((lo (- lo test-epsilon))
4137 (hi (+ hi test-epsilon)))
4138 (<= lo x hi))))
4139
a8591a55
MW
4140 ;; (cartesian-product-map list '(a b) '(1 2))
4141 ;; ==> ((a 1) (a 2) (b 1) (b 2))
4142 (define (cartesian-product-map f . lsts)
4143 (define (cartmap rev-head lsts)
4144 (if (null? lsts)
4145 (list (apply f (reverse rev-head)))
4146 (append-map (lambda (x) (cartmap (cons x rev-head) (cdr lsts)))
4147 (car lsts))))
4148 (cartmap '() lsts))
4149
4150 (define (cartesian-product-for-each f . lsts)
4151 (define (cartfor rev-head lsts)
4152 (if (null? lsts)
4153 (apply f (reverse rev-head))
4154 (for-each (lambda (x) (cartfor (cons x rev-head) (cdr lsts)))
4155 (car lsts))))
4156 (cartfor '() lsts))
4157
ff62c168
MW
4158 (define (safe-euclidean-quotient x y)
4159 (cond ((not (and (real? x) (real? y))) (throw 'wrong-type-arg))
4160 ((zero? y) (throw 'divide-by-zero))
4161 ((nan? y) (nan))
4162 ((positive? y) (floor (/ x y)))
4163 ((negative? y) (ceiling (/ x y)))
4164 (else (throw 'unknown-problem))))
4165
4166 (define (safe-euclidean-remainder x y)
a8591a55
MW
4167 (let ((q (safe-euclidean-quotient x y)))
4168 (- x (* y q))))
4169
4170 (define (valid-euclidean-answer? x y q r)
4171 (if (and (finite? x) (finite? y))
4172 (and (eq? (exact? q)
4173 (exact? r)
4174 (and (exact? x) (exact? y)))
4175 (integer? q)
4176 (test-eqv? r (- x (* q y)))
4177 (test-within-range? 0 (abs y) r))
4178 (and (test-eqv? q (safe-euclidean-quotient x y))
4179 (test-eqv? r (safe-euclidean-remainder x y)))))
ff62c168
MW
4180
4181 (define (safe-centered-quotient x y)
4182 (cond ((not (and (real? x) (real? y))) (throw 'wrong-type-arg))
4183 ((zero? y) (throw 'divide-by-zero))
4184 ((nan? y) (nan))
4185 ((positive? y) (floor (+ 1/2 (/ x y))))
4186 ((negative? y) (ceiling (+ -1/2 (/ x y))))
4187 (else (throw 'unknown-problem))))
4188
4189 (define (safe-centered-remainder x y)
a8591a55
MW
4190 (let ((q (safe-centered-quotient x y)))
4191 (- x (* y q))))
4192
4193 (define (valid-centered-answer? x y q r)
4194 (if (and (finite? x) (finite? y))
4195 (and (eq? (exact? q)
4196 (exact? r)
4197 (and (exact? x) (exact? y)))
4198 (integer? q)
4199 (test-eqv? r (- x (* q y)))
4200 (test-within-range? (* -1/2 (abs y))
4201 (* +1/2 (abs y))
4202 r))
4203 (and (test-eqv? q (safe-centered-quotient x y))
4204 (test-eqv? r (safe-centered-remainder x y)))))
ff62c168
MW
4205
4206 (define test-numerators
a8591a55
MW
4207 (append (cartesian-product-map * '(1 -1)
4208 '(123 125 127 130 3 5 10
4209 123.2 125.0 127.2 130.0
4210 123/7 125/7 127/7 130/7))
4211 (cartesian-product-map * '(1 -1)
4212 '(123 125 127 130 3 5 10)
4213 (list 1
4214 (+ 1 most-positive-fixnum)
4215 (+ 2 most-positive-fixnum)))
4216 (list 0 +0.0 -0.0 +inf.0 -inf.0 +nan.0
4217 most-negative-fixnum
4218 (1+ most-positive-fixnum)
4219 (1- most-negative-fixnum))))
ff62c168
MW
4220
4221 (define test-denominators
4222 (list 10 5 10/7 127/2 10.0 63.5
4223 -10 -5 -10/7 -127/2 -10.0 -63.5
4224 +inf.0 -inf.0 +nan.0 most-negative-fixnum
4225 (+ 1 most-positive-fixnum) (+ -1 most-negative-fixnum)
4226 (+ 2 most-positive-fixnum) (+ -2 most-negative-fixnum)))
4227
ff62c168 4228 (with-test-prefix "euclidean/"
a8591a55
MW
4229 (pass-if (documented? euclidean/))
4230 (pass-if (documented? euclidean-quotient))
4231 (pass-if (documented? euclidean-remainder))
4232
4233 (cartesian-product-for-each
4234 (lambda (n d)
4235 (run-test (list 'euclidean/ n d) #t
4236 (lambda ()
4237 (let-values (((q r) (euclidean/ n d)))
4238 (and (test-eqv? q (euclidean-quotient n d))
4239 (test-eqv? r (euclidean-remainder n d))
4240 (valid-euclidean-answer? n d q r))))))
4241 test-numerators test-denominators))
4242
ff62c168 4243 (with-test-prefix "centered/"
a8591a55
MW
4244 (pass-if (documented? centered/))
4245 (pass-if (documented? centered-quotient))
4246 (pass-if (documented? centered-remainder))
4247
4248 (cartesian-product-for-each
4249 (lambda (n d)
4250 (run-test (list 'centered/ n d) #t
4251 (lambda ()
4252 (let-values (((q r) (centered/ n d)))
4253 (and (test-eqv? q (centered-quotient n d))
4254 (test-eqv? r (centered-remainder n d))
4255 (valid-centered-answer? n d q r))))))
4256 test-numerators test-denominators)))