Repository navigation
Expand file tree
/
Copy pathranddec.py
More file actions
575 lines (503 loc) · 18 KB
/
Copy pathranddec.py
File metadata and controls
575 lines (503 loc) · 18 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
#
# Copyright (c) 2008-2012 Stefan Krah. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# Generate test cases for deccheck.py.
#
# Grammar from http://speleotrove.com/decimal/daconvs.html
#
# sign ::= '+' | '-'
# digit ::= '0' | '1' | '2' | '3' | '4' | '5' | '6' | '7' |
# '8' | '9'
# indicator ::= 'e' | 'E'
# digits ::= digit [digit]...
# decimal-part ::= digits '.' [digits] | ['.'] digits
# exponent-part ::= indicator [sign] digits
# infinity ::= 'Infinity' | 'Inf'
# nan ::= 'NaN' [digits] | 'sNaN' [digits]
# numeric-value ::= decimal-part [exponent-part] | infinity
# numeric-string ::= [sign] numeric-value | [sign] nan
#
from random import randrange, sample
from fractions import Fraction
from randfloat import un_randfloat, bin_randfloat, tern_randfloat
def sign():
if randrange(2):
if randrange(2): return '+'
return ''
return '-'
def indicator():
return "eE"[randrange(2)]
def digits(maxprec):
if maxprec == 0: return ''
return str(randrange(10**maxprec))
def dot():
if randrange(2): return '.'
return ''
def decimal_part(maxprec):
if randrange(100) > 60: # integers
return digits(maxprec)
if randrange(2):
intlen = randrange(1, maxprec+1)
fraclen = maxprec-intlen
intpart = digits(intlen)
fracpart = digits(fraclen)
return ''.join((intpart, '.', fracpart))
else:
return ''.join((dot(), digits(maxprec)))
def expdigits(maxexp):
return str(randrange(maxexp))
def exponent_part(maxexp):
return ''.join((indicator(), sign(), expdigits(maxexp)))
def infinity():
if randrange(2): return 'Infinity'
return 'Inf'
def nan():
d = ''
if randrange(2):
d = digits(randrange(99))
if randrange(2):
return ''.join(('NaN', d))
else:
return ''.join(('sNaN', d))
def numeric_value(maxprec, maxexp):
if randrange(100) > 90:
return infinity()
exp_part = ''
if randrange(100) > 60:
exp_part = exponent_part(maxexp)
return ''.join((decimal_part(maxprec), exp_part))
def numeric_string(maxprec, maxexp):
if randrange(100) > 95:
return ''.join((sign(), nan()))
else:
return ''.join((sign(), numeric_value(maxprec, maxexp)))
def randdec(maxprec, maxexp):
return numeric_string(maxprec, maxexp)
def rand_adjexp(maxprec, maxadjexp):
d = digits(maxprec)
maxexp = maxadjexp-len(d)+1
if maxexp == 0: maxexp = 1
exp = str(randrange(maxexp-2*(abs(maxexp)), maxexp))
return ''.join((sign(), d, 'E', exp))
def ndigits(n):
if n < 1: return 0
return randrange(10**(n-1), 10**n)
def randtuple(maxprec, maxexp):
n = randrange(100)
sign = randrange(2)
coeff = ndigits(maxprec)
if n >= 95:
coeff = ()
exp = 'F'
elif n >= 85:
coeff = tuple(map(int, str(ndigits(maxprec))))
exp = "nN"[randrange(2)]
else:
coeff = tuple(map(int, str(ndigits(maxprec))))
exp = randrange(-maxexp, maxexp)
return (sign, coeff, exp)
def from_triple(sign, coeff, exp):
return ''.join((str(sign*coeff), indicator(), str(exp)))
# Close to 10**n
def un_close_to_pow10(prec, maxexp, itr=None):
if itr is None:
lst = range(prec+30)
else:
lst = sample(range(prec+30), itr)
nines = [10**n - 1 for n in lst]
pow10 = [10**n for n in lst]
for coeff in nines:
yield coeff
yield -coeff
yield from_triple(1, coeff, randrange(2*maxexp))
yield from_triple(-1, coeff, randrange(2*maxexp))
for coeff in pow10:
yield coeff
yield -coeff
# Close to 10**n
def bin_close_to_pow10(prec, maxexp, itr=None):
if itr is None:
lst = range(prec+30)
else:
lst = sample(range(prec+30), itr)
nines = [10**n - 1 for n in lst]
pow10 = [10**n for n in lst]
for coeff in nines:
yield coeff, 1
yield -coeff, -1
yield 1, coeff
yield -1, -coeff
yield from_triple(1, coeff, randrange(2*maxexp)), 1
yield from_triple(-1, coeff, randrange(2*maxexp)), -1
yield 1, from_triple(1, coeff, -randrange(2*maxexp))
yield -1, from_triple(-1, coeff, -randrange(2*maxexp))
for coeff in pow10:
yield coeff, -1
yield -coeff, 1
yield 1, -coeff
yield -coeff, 1
# Close to 1:
def close_to_one_greater(prec, emax, emin):
rprec = 10**prec
return ''.join(("1.", '0'*randrange(prec),
str(randrange(rprec))))
def close_to_one_less(prec, emax, emin):
rprec = 10**prec
return ''.join(("0.9", '9'*randrange(prec),
str(randrange(rprec))))
# Close to 0:
def close_to_zero_greater(prec, emax, emin):
rprec = 10**prec
return ''.join(("0.", '0'*randrange(prec),
str(randrange(rprec))))
def close_to_zero_less(prec, emax, emin):
rprec = 10**prec
return ''.join(("-0.", '0'*randrange(prec),
str(randrange(rprec))))
# Close to emax:
def close_to_emax_less(prec, emax, emin):
rprec = 10**prec
return ''.join(("9.", '9'*randrange(prec),
str(randrange(rprec)), "E", str(emax)))
def close_to_emax_greater(prec, emax, emin):
rprec = 10**prec
return ''.join(("1.", '0'*randrange(prec),
str(randrange(rprec)), "E", str(emax+1)))
# Close to emin:
def close_to_emin_greater(prec, emax, emin):
rprec = 10**prec
return ''.join(("1.", '0'*randrange(prec),
str(randrange(rprec)), "E", str(emin)))
def close_to_emin_less(prec, emax, emin):
rprec = 10**prec
return ''.join(("9.", '9'*randrange(prec),
str(randrange(rprec)), "E", str(emin-1)))
# Close to etiny:
def close_to_etiny_greater(prec, emax, emin):
rprec = 10**prec
etiny = emin - (prec - 1)
return ''.join(("1.", '0'*randrange(prec),
str(randrange(rprec)), "E", str(etiny)))
def close_to_etiny_less(prec, emax, emin):
rprec = 10**prec
etiny = emin - (prec - 1)
return ''.join(("9.", '9'*randrange(prec),
str(randrange(rprec)), "E", str(etiny-1)))
def close_to_min_etiny_greater(prec, max_prec, min_emin):
rprec = 10**prec
etiny = min_emin - (max_prec - 1)
return ''.join(("1.", '0'*randrange(prec),
str(randrange(rprec)), "E", str(etiny)))
def close_to_min_etiny_less(prec, max_prec, min_emin):
rprec = 10**prec
etiny = min_emin - (max_prec - 1)
return ''.join(("9.", '9'*randrange(prec),
str(randrange(rprec)), "E", str(etiny-1)))
close_funcs = [
close_to_one_greater, close_to_one_less, close_to_zero_greater,
close_to_zero_less, close_to_emax_less, close_to_emax_greater,
close_to_emin_greater, close_to_emin_less, close_to_etiny_greater,
close_to_etiny_less, close_to_min_etiny_greater, close_to_min_etiny_less
]
def un_close_numbers(prec, emax, emin, itr=None):
if itr is None:
itr = 1000
for _ in range(itr):
for func in close_funcs:
yield func(prec, emax, emin)
def bin_close_numbers(prec, emax, emin, itr=None):
if itr is None:
itr = 1000
for _ in range(itr):
for func1 in close_funcs:
for func2 in close_funcs:
yield func1(prec, emax, emin), func2(prec, emax, emin)
for func in close_funcs:
yield randdec(prec, emax), func(prec, emax, emin)
yield func(prec, emax, emin), randdec(prec, emax)
def tern_close_numbers(prec, emax, emin, itr):
if itr is None:
itr = 1000
for _ in range(itr):
for func1 in close_funcs:
for func2 in close_funcs:
for func3 in close_funcs:
yield (func1(prec, emax, emin), func2(prec, emax, emin),
func3(prec, emax, emin))
for func in close_funcs:
yield (randdec(prec, emax), func(prec, emax, emin),
func(prec, emax, emin))
yield (func(prec, emax, emin), randdec(prec, emax),
func(prec, emax, emin))
yield (func(prec, emax, emin), func(prec, emax, emin),
randdec(prec, emax))
for func in close_funcs:
yield (randdec(prec, emax), randdec(prec, emax),
func(prec, emax, emin))
yield (randdec(prec, emax), func(prec, emax, emin),
randdec(prec, emax))
yield (func(prec, emax, emin), randdec(prec, emax),
randdec(prec, emax))
# If itr == None, test all digit lengths up to prec + 30
def un_incr_digits(prec, maxexp, itr):
if itr is None:
lst = range(prec+30)
else:
lst = sample(range(prec+30), itr)
for m in lst:
yield from_triple(1, ndigits(m), 0)
yield from_triple(-1, ndigits(m), 0)
yield from_triple(1, ndigits(m), randrange(maxexp))
yield from_triple(-1, ndigits(m), randrange(maxexp))
# If itr == None, test all digit lengths up to prec + 30
# Also output decimals im tuple form.
def un_incr_digits_tuple(prec, maxexp, itr):
if itr is None:
lst = range(prec+30)
else:
lst = sample(range(prec+30), itr)
for m in lst:
yield from_triple(1, ndigits(m), 0)
yield from_triple(-1, ndigits(m), 0)
yield from_triple(1, ndigits(m), randrange(maxexp))
yield from_triple(-1, ndigits(m), randrange(maxexp))
# test from tuple
yield (0, tuple(map(int, str(ndigits(m)))), 0)
yield (1, tuple(map(int, str(ndigits(m)))), 0)
yield (0, tuple(map(int, str(ndigits(m)))), randrange(maxexp))
yield (1, tuple(map(int, str(ndigits(m)))), randrange(maxexp))
# If itr == None, test all combinations of digit lengths up to prec + 30
def bin_incr_digits(prec, maxexp, itr):
if itr is None:
lst1 = range(prec+30)
lst2 = range(prec+30)
else:
lst1 = sample(range(prec+30), itr)
lst2 = sample(range(prec+30), itr)
for m in lst1:
x = from_triple(1, ndigits(m), 0)
yield x, x
x = from_triple(-1, ndigits(m), 0)
yield x, x
x = from_triple(1, ndigits(m), randrange(maxexp))
yield x, x
x = from_triple(-1, ndigits(m), randrange(maxexp))
yield x, x
for m in lst1:
for n in lst2:
x = from_triple(1, ndigits(m), 0)
y = from_triple(1, ndigits(n), 0)
yield x, y
x = from_triple(-1, ndigits(m), 0)
y = from_triple(1, ndigits(n), 0)
yield x, y
x = from_triple(1, ndigits(m), 0)
y = from_triple(-1, ndigits(n), 0)
yield x, y
x = from_triple(-1, ndigits(m), 0)
y = from_triple(-1, ndigits(n), 0)
yield x, y
x = from_triple(1, ndigits(m), randrange(maxexp))
y = from_triple(1, ndigits(n), randrange(maxexp))
yield x, y
x = from_triple(-1, ndigits(m), randrange(maxexp))
y = from_triple(1, ndigits(n), randrange(maxexp))
yield x, y
x = from_triple(1, ndigits(m), randrange(maxexp))
y = from_triple(-1, ndigits(n), randrange(maxexp))
yield x, y
x = from_triple(-1, ndigits(m), randrange(maxexp))
y = from_triple(-1, ndigits(n), randrange(maxexp))
yield x, y
def randsign():
return (1, -1)[randrange(2)]
# If itr == None, test all combinations of digit lengths up to prec + 30
def tern_incr_digits(prec, maxexp, itr):
if itr is None:
lst1 = range(prec+30)
lst2 = range(prec+30)
lst3 = range(prec+30)
else:
lst1 = sample(range(prec+30), itr)
lst2 = sample(range(prec+30), itr)
lst3 = sample(range(prec+30), itr)
for m in lst1:
for n in lst2:
for p in lst3:
x = from_triple(randsign(), ndigits(m), 0)
y = from_triple(randsign(), ndigits(n), 0)
z = from_triple(randsign(), ndigits(p), 0)
yield x, y, z
# Tests for the 'logical' functions
def bindigits(prec):
z = 0
for i in range(prec):
z += randrange(2) * 10**i
return z
def logical_un_incr_digits(prec, itr):
if itr is None:
lst = range(prec+30)
else:
lst = sample(range(prec+30), itr)
for m in lst:
yield from_triple(1, bindigits(m), 0)
def logical_bin_incr_digits(prec, itr):
if itr is None:
lst1 = range(prec+30)
lst2 = range(prec+30)
else:
lst1 = sample(range(prec+30), itr)
lst2 = sample(range(prec+30), itr)
for m in lst1:
x = from_triple(1, bindigits(m), 0)
yield x, x
for m in lst1:
for n in lst2:
x = from_triple(1, bindigits(m), 0)
y = from_triple(1, bindigits(n), 0)
yield x, y
def randint():
p = randrange(1, 100)
return ndigits(p) * (1,-1)[randrange(2)]
def randfloat():
p = randrange(1, 100)
s = numeric_value(p, 383)
try:
f = float(numeric_value(p, 383))
except ValueError:
f = 0.0
return f
def randcomplex():
real = randfloat()
if randrange(100) > 30:
imag = 0.0
else:
imag = randfloat()
return complex(real, imag)
def randfraction():
num = randint()
denom = randint()
if denom == 0:
denom = 1
return Fraction(num, denom)
number_funcs = [randint, randfloat, randcomplex, randfraction]
def un_random_mixed_op(itr=None):
if itr is None:
itr = 1000
for _ in range(itr):
for func in number_funcs:
yield func()
# Test garbage input
for x in (['x'], ('y',), {'z'}, {1:'z'}):
yield x
def bin_random_mixed_op(prec, emax, emin, itr=None):
if itr is None:
itr = 1000
for _ in range(itr):
for func in number_funcs:
yield randdec(prec, emax), func()
yield func(), randdec(prec, emax)
for number in number_funcs:
for dec in close_funcs:
yield dec(prec, emax, emin), number()
# Test garbage input
for x in (['x'], ('y',), {'z'}, {1:'z'}):
for y in (['x'], ('y',), {'z'}, {1:'z'}):
yield x, y
def tern_random_mixed_op(prec, emax, emin, itr):
if itr is None:
itr = 1000
for _ in range(itr):
for func in number_funcs:
yield randdec(prec, emax), randdec(prec, emax), func()
yield randdec(prec, emax), func(), func()
yield func(), func(), func()
# Test garbage input
for x in (['x'], ('y',), {'z'}, {1:'z'}):
for y in (['x'], ('y',), {'z'}, {1:'z'}):
for z in (['x'], ('y',), {'z'}, {1:'z'}):
yield x, y, z
def all_unary(prec, exp_range, itr):
for a in un_close_to_pow10(prec, exp_range, itr):
yield (a,)
for a in un_close_numbers(prec, exp_range, -exp_range, itr):
yield (a,)
for a in un_incr_digits_tuple(prec, exp_range, itr):
yield (a,)
for a in un_randfloat():
yield (a,)
for a in un_random_mixed_op(itr):
yield (a,)
for a in logical_un_incr_digits(prec, itr):
yield (a,)
for _ in range(100):
yield (randdec(prec, exp_range),)
for _ in range(100):
yield (randtuple(prec, exp_range),)
def unary_optarg(prec, exp_range, itr):
for _ in range(100):
yield randdec(prec, exp_range), None
yield randdec(prec, exp_range), None, None
def all_binary(prec, exp_range, itr):
for a, b in bin_close_to_pow10(prec, exp_range, itr):
yield a, b
for a, b in bin_close_numbers(prec, exp_range, -exp_range, itr):
yield a, b
for a, b in bin_incr_digits(prec, exp_range, itr):
yield a, b
for a, b in bin_randfloat():
yield a, b
for a, b in bin_random_mixed_op(prec, exp_range, -exp_range, itr):
yield a, b
for a, b in logical_bin_incr_digits(prec, itr):
yield a, b
for _ in range(100):
yield randdec(prec, exp_range), randdec(prec, exp_range)
def binary_optarg(prec, exp_range, itr):
for _ in range(100):
yield randdec(prec, exp_range), randdec(prec, exp_range), None
yield randdec(prec, exp_range), randdec(prec, exp_range), None, None
def all_ternary(prec, exp_range, itr):
for a, b, c in tern_close_numbers(prec, exp_range, -exp_range, itr):
yield a, b, c
for a, b, c in tern_incr_digits(prec, exp_range, itr):
yield a, b, c
for a, b, c in tern_randfloat():
yield a, b, c
for a, b, c in tern_random_mixed_op(prec, exp_range, -exp_range, itr):
yield a, b, c
for _ in range(100):
a = randdec(prec, 2*exp_range)
b = randdec(prec, 2*exp_range)
c = randdec(prec, 2*exp_range)
yield a, b, c
def ternary_optarg(prec, exp_range, itr):
for _ in range(100):
a = randdec(prec, 2*exp_range)
b = randdec(prec, 2*exp_range)
c = randdec(prec, 2*exp_range)
yield a, b, c, None
yield a, b, c, None, None