10 unshift @INC, '../lib'; # for running manually
11 if ($^O eq 'unicos') # the tests hang under "unicos"
19 use Math::BigInt::Calc;
21 my ($BASE_LEN, $AND_BITS, $XOR_BITS, $OR_BITS, $BASE_LEN_SMALL, $MAX_VAL) =
22 Math::BigInt::Calc->_base_len();
24 print "# BASE_LEN = $BASE_LEN\n";
25 print "# MAX_VAL = $MAX_VAL\n";
26 print "# AND_BITS = $AND_BITS\n";
27 print "# XOR_BITS = $XOR_BITS\n";
28 print "# IOR_BITS = $OR_BITS\n";
30 # testing of Math::BigInt::Calc
32 my $C = 'Math::BigInt::Calc'; # pass classname to sub's
35 my $x = $C->_new("123"); my $y = $C->_new("321");
36 ok (ref($x),'ARRAY'); ok ($C->_str($x),123); ok ($C->_str($y),321);
38 ###############################################################################
39 # _add, _sub, _mul, _div
40 ok ($C->_str($C->_add($x,$y)),444);
41 ok ($C->_str($C->_sub($x,$y)),123);
42 ok ($C->_str($C->_mul($x,$y)),39483);
43 ok ($C->_str($C->_div($x,$y)),123);
45 ###############################################################################
46 # check that mul/div doesn't change $y
47 # and returns the same reference, not something new
48 ok ($C->_str($C->_mul($x,$y)),39483);
49 ok ($C->_str($x),39483); ok ($C->_str($y),321);
51 ok ($C->_str($C->_div($x,$y)),123);
52 ok ($C->_str($x),123); ok ($C->_str($y),321);
54 $x = $C->_new("39483");
55 my ($x1,$r1) = $C->_div($x,$y);
59 ok ($C->_str($r1),'0');
61 $x = $C->_new("39483"); # reset
63 ###############################################################################
64 my $z = $C->_new("2");
65 ok ($C->_str($C->_add($x,$z)),39485);
66 my ($re,$rr) = $C->_div($x,$y);
68 ok ($C->_str($re),123); ok ($C->_str($rr),2);
70 # is_zero, _is_one, _one, _zero
71 ok ($C->_is_zero($x)||0,0);
72 ok ($C->_is_one($x)||0,0);
74 ok ($C->_str($C->_zero()),"0");
75 ok ($C->_str($C->_one()),"1");
78 ok ($C->_str($C->_two()),"2");
79 ok ($C->_str($C->_ten()),"10");
80 ok ($C->_is_ten($C->_two()),0);
81 ok ($C->_is_two($C->_two()),1);
82 ok ($C->_is_ten($C->_ten()),1);
83 ok ($C->_is_two($C->_ten()),0);
85 ok ($C->_is_one($C->_one()),1);
86 ok ($C->_is_one($C->_two()),0);
87 ok ($C->_is_one($C->_ten()),0);
89 ok ($C->_is_one($C->_zero()) || 0,0);
91 ok ($C->_is_zero($C->_zero()),1);
93 ok ($C->_is_zero($C->_one()) || 0,0);
96 ok ($C->_is_odd($C->_one()),1); ok ($C->_is_odd($C->_zero())||0,0);
97 ok ($C->_is_even($C->_one()) || 0,0); ok ($C->_is_even($C->_zero()),1);
100 for my $method (qw/_alen _len/)
102 $x = $C->_new("1"); ok ($C->$method($x),1);
103 $x = $C->_new("12"); ok ($C->$method($x),2);
104 $x = $C->_new("123"); ok ($C->$method($x),3);
105 $x = $C->_new("1234"); ok ($C->$method($x),4);
106 $x = $C->_new("12345"); ok ($C->$method($x),5);
107 $x = $C->_new("123456"); ok ($C->$method($x),6);
108 $x = $C->_new("1234567"); ok ($C->$method($x),7);
109 $x = $C->_new("12345678"); ok ($C->$method($x),8);
110 $x = $C->_new("123456789"); ok ($C->$method($x),9);
112 $x = $C->_new("8"); ok ($C->$method($x),1);
113 $x = $C->_new("21"); ok ($C->$method($x),2);
114 $x = $C->_new("321"); ok ($C->$method($x),3);
115 $x = $C->_new("4321"); ok ($C->$method($x),4);
116 $x = $C->_new("54321"); ok ($C->$method($x),5);
117 $x = $C->_new("654321"); ok ($C->$method($x),6);
118 $x = $C->_new("7654321"); ok ($C->$method($x),7);
119 $x = $C->_new("87654321"); ok ($C->$method($x),8);
120 $x = $C->_new("987654321"); ok ($C->$method($x),9);
122 $x = $C->_new("0"); ok ($C->$method($x),1);
123 $x = $C->_new("20"); ok ($C->$method($x),2);
124 $x = $C->_new("320"); ok ($C->$method($x),3);
125 $x = $C->_new("4320"); ok ($C->$method($x),4);
126 $x = $C->_new("54320"); ok ($C->$method($x),5);
127 $x = $C->_new("654320"); ok ($C->$method($x),6);
128 $x = $C->_new("7654320"); ok ($C->$method($x),7);
129 $x = $C->_new("87654320"); ok ($C->$method($x),8);
130 $x = $C->_new("987654320"); ok ($C->$method($x),9);
132 for (my $i = 1; $i < 9; $i++)
134 my $a = "$i" . '0' x ($i-1);
136 print "# Tried len '$a'\n" unless ok ($C->_len($x),$i);
141 $x = $C->_new("123456789");
142 ok ($C->_digit($x,0),9);
143 ok ($C->_digit($x,1),8);
144 ok ($C->_digit($x,2),7);
145 ok ($C->_digit($x,-1),1);
146 ok ($C->_digit($x,-2),2);
147 ok ($C->_digit($x,-3),3);
150 foreach (qw/ 1 12 123 1234 12345 123456 1234567 12345678 123456789/)
153 ok ($C->_str($C->_copy($x)),"$_");
154 ok ($C->_str($x),"$_"); # did _copy destroy original x?
158 $x = $C->_new("1256000000"); ok ($C->_zeros($x),6);
159 $x = $C->_new("152"); ok ($C->_zeros($x),0);
160 $x = $C->_new("123000"); ok ($C->_zeros($x),3);
161 $x = $C->_new("0"); ok ($C->_zeros($x),0);
164 $x = $C->_new("10"); $y = $C->_new("3");
165 ok ($C->_str($C->_lsft($x,$y,10)),10000);
166 $x = $C->_new("20"); $y = $C->_new("3");
167 ok ($C->_str($C->_lsft($x,$y,10)),20000);
169 $x = $C->_new("128"); $y = $C->_new("4");
170 ok ($C->_str($C->_lsft($x,$y,2)), 128 << 4);
172 $x = $C->_new("1000"); $y = $C->_new("3");
173 ok ($C->_str($C->_rsft($x,$y,10)),1);
174 $x = $C->_new("20000"); $y = $C->_new("3");
175 ok ($C->_str($C->_rsft($x,$y,10)),20);
176 $x = $C->_new("256"); $y = $C->_new("4");
177 ok ($C->_str($C->_rsft($x,$y,2)),256 >> 4);
179 $x = $C->_new("6411906467305339182857313397200584952398");
181 ok ($C->_str($C->_rsft($x,$y,10)),0);
184 $x = $C->_new("123456789");
185 $y = $C->_new("987654321");
186 ok ($C->_acmp($x,$y),-1);
187 ok ($C->_acmp($y,$x),1);
188 ok ($C->_acmp($x,$x),0);
189 ok ($C->_acmp($y,$y),0);
192 ok ($C->_acmp($x,$y),0);
194 ok ($C->_acmp($x,$y),1);
195 ok ($C->_acmp($y,$x),-1);
196 $x = $C->_new("123456789");
197 $y = $C->_new("1987654321");
198 ok ($C->_acmp($x,$y),-1);
199 ok ($C->_acmp($y,$x),+1);
201 $x = $C->_new("1234567890123456789");
202 $y = $C->_new("987654321012345678");
203 ok ($C->_acmp($x,$y),1);
204 ok ($C->_acmp($y,$x),-1);
205 ok ($C->_acmp($x,$x),0);
206 ok ($C->_acmp($y,$y),0);
208 $x = $C->_new("1234");
209 $y = $C->_new("987654321012345678");
210 ok ($C->_acmp($x,$y),-1);
211 ok ($C->_acmp($y,$x),1);
212 ok ($C->_acmp($x,$x),0);
213 ok ($C->_acmp($y,$y),0);
217 $y = $C->_new("5033");
218 my ($xmod,$sign) = $C->_modinv($x,$y);
219 ok ($C->_str($xmod),'629'); # -629 % 5033 == 4404
223 $x = $C->_new("3333"); $y = $C->_new("1111");
224 ok ($C->_str(scalar $C->_div($x,$y)),3);
225 $x = $C->_new("33333"); $y = $C->_new("1111"); ($x,$y) = $C->_div($x,$y);
226 ok ($C->_str($x),30); ok ($C->_str($y),3);
227 $x = $C->_new("123"); $y = $C->_new("1111");
228 ($x,$y) = $C->_div($x,$y); ok ($C->_str($x),0); ok ($C->_str($y),123);
231 foreach (qw/1 12 123 1234 12345 1234567 12345678 123456789 1234567890/)
234 ok (ref($x)||'','ARRAY'); ok ($C->_str($x),"$_");
235 $x = $C->_num($x); ok (ref($x)||'',''); ok ($x,$_);
239 $x = $C->_new("144"); ok ($C->_str($C->_sqrt($x)),'12');
240 $x = $C->_new("144000000000000"); ok ($C->_str($C->_sqrt($x)),'12000000');
243 $x = $C->_new("81"); my $n = $C->_new("3"); # 4*4*4 = 64, 5*5*5 = 125
244 ok ($C->_str($C->_root($x,$n)),'4'); # 4.xx => 4.0
245 $x = $C->_new("81"); $n = $C->_new("4"); # 3*3*3*3 == 81
246 ok ($C->_str($C->_root($x,$n)),'3');
249 $x = $C->_new("0"); $n = $C->_new("3"); # 0 ** y => 0
250 ok ($C->_str($C->_pow($x,$n)), 0);
251 $x = $C->_new("3"); $n = $C->_new("0"); # x ** 0 => 1
252 ok ($C->_str($C->_pow($x,$n)), 1);
253 $x = $C->_new("1"); $n = $C->_new("3"); # 1 ** y => 1
254 ok ($C->_str($C->_pow($x,$n)), 1);
255 $x = $C->_new("5"); $n = $C->_new("1"); # x ** 1 => x
256 ok ($C->_str($C->_pow($x,$n)), 5);
258 $x = $C->_new("81"); $n = $C->_new("3"); # 81 ** 3 == 531441
259 ok ($C->_str($C->_pow($x,$n)),81 ** 3);
261 ok ($C->_str($C->_root($x,$n)),81);
264 ok ($C->_str($C->_pow($x,$n)),81 ** 3);
265 ok ($C->_str($C->_pow($x,$n)),'150094635296999121'); # 531441 ** 3 ==
267 ok ($C->_str($C->_root($x,$n)),'531441');
268 ok ($C->_str($C->_root($x,$n)),'81');
270 $x = $C->_new("81"); $n = $C->_new("14");
271 ok ($C->_str($C->_pow($x,$n)),'523347633027360537213511521');
272 ok ($C->_str($C->_root($x,$n)),'81');
274 $x = $C->_new("523347633027360537213511520");
275 ok ($C->_str($C->_root($x,$n)),'80');
277 $x = $C->_new("523347633027360537213511522");
278 ok ($C->_str($C->_root($x,$n)),'81');
280 my $res = [ qw/9 31 99 316 999 3162 9999 31622 99999/ ];
282 # 99 ** 2 = 9801, 999 ** 2 = 998001 etc
285 $x = '9' x $i; $x = $C->_new($x);
287 my $rc = '9' x ($i-1). '8' . '0' x ($i-1) . '1';
288 print "# _pow( ", '9' x $i, ", 2) \n" unless
289 ok ($C->_str($C->_pow($x,$n)),$rc);
291 # if $i > $BASE_LEN, the test takes a really long time:
294 $x = '9' x $i; $x = $C->_new($x);
295 $n = '9' x $i; $n = $C->_new($n);
296 print "# _root( ", '9' x $i, ", ", 9 x $i, ") \n";
297 print "# _root( ", '9' x $i, ", ", 9 x $i, ") \n" unless
298 ok ($C->_str($C->_root($x,$n)),'1');
300 $x = '9' x $i; $x = $C->_new($x);
302 print "# BASE_LEN $BASE_LEN _root( ", '9' x $i, ", ", 9 x $i, ") \n" unless
303 ok ($C->_str($C->_root($x,$n)), $res->[$i-2]);
307 ok ("skipped $i", "skipped $i");
308 ok ("skipped $i", "skipped $i");
312 ##############################################################################
314 $x = $C->_new("0"); ok ($C->_str($C->_fac($x)),'1');
315 $x = $C->_new("1"); ok ($C->_str($C->_fac($x)),'1');
316 $x = $C->_new("2"); ok ($C->_str($C->_fac($x)),'2');
317 $x = $C->_new("3"); ok ($C->_str($C->_fac($x)),'6');
318 $x = $C->_new("4"); ok ($C->_str($C->_fac($x)),'24');
319 $x = $C->_new("5"); ok ($C->_str($C->_fac($x)),'120');
320 $x = $C->_new("10"); ok ($C->_str($C->_fac($x)),'3628800');
321 $x = $C->_new("11"); ok ($C->_str($C->_fac($x)),'39916800');
322 $x = $C->_new("12"); ok ($C->_str($C->_fac($x)),'479001600');
323 $x = $C->_new("13"); ok ($C->_str($C->_fac($x)),'6227020800');
325 # test that _fac modifes $x in place for small arguments
326 $x = $C->_new("3"); $C->_fac($x); ok ($C->_str($x),'6');
327 $x = $C->_new("13"); $C->_fac($x); ok ($C->_str($x),'6227020800');
329 ##############################################################################
331 foreach (qw/1 11 121 1231 12341 1234561 12345671 123456781 1234567891/)
333 $x = $C->_new("$_"); $C->_inc($x);
334 print "# \$x = ",$C->_str($x),"\n"
335 unless ok ($C->_str($x),substr($_,0,length($_)-1) . '2');
336 $C->_dec($x); ok ($C->_str($x),$_);
338 foreach (qw/19 119 1219 12319 1234519 12345619 123456719 1234567819/)
340 $x = $C->_new("$_"); $C->_inc($x);
341 print "# \$x = ",$C->_str($x),"\n"
342 unless ok ($C->_str($x),substr($_,0,length($_)-2) . '20');
343 $C->_dec($x); ok ($C->_str($x),$_);
345 foreach (qw/999 9999 99999 9999999 99999999 999999999 9999999999 99999999999/)
347 $x = $C->_new("$_"); $C->_inc($x);
348 print "# \$x = ",$C->_str($x),"\n"
349 unless ok ($C->_str($x), '1' . '0' x (length($_)));
350 $C->_dec($x); ok ($C->_str($x),$_);
353 $x = $C->_new("1000"); $C->_inc($x); ok ($C->_str($x),'1001');
354 $C->_dec($x); ok ($C->_str($x),'1000');
359 $BL = &{"$C"."::_base_len"}();
362 $x = '1' . '0' x $BL;
363 $z = '1' . '0' x ($BL-1); $z .= '1';
364 $x = $C->_new($x); $C->_inc($x); ok ($C->_str($x),$z);
366 $x = '1' . '0' x $BL; $z = '9' x $BL;
367 $x = $C->_new($x); $C->_dec($x); ok ($C->_str($x),$z);
370 # $x = $C->_new("-2"); $y = $C->_new("4"); ok ($C->_acmp($x,$y),-1);
372 ###############################################################################
374 $x = $C->_new("1000"); $y = $C->_new("3");
375 ok ($C->_str(scalar $C->_mod($x,$y)),1);
376 $x = $C->_new("1000"); $y = $C->_new("2");
377 ok ($C->_str(scalar $C->_mod($x,$y)),0);
380 $x = $C->_new("5"); $y = $C->_new("2");
381 ok ($C->_str(scalar $C->_xor($x,$y)),7);
382 $x = $C->_new("5"); $y = $C->_new("2");
383 ok ($C->_str(scalar $C->_or($x,$y)),7);
384 $x = $C->_new("5"); $y = $C->_new("3");
385 ok ($C->_str(scalar $C->_and($x,$y)),1);
387 # _from_hex, _from_bin, _from_oct
388 ok ($C->_str( $C->_from_hex("0xFf")),255);
389 ok ($C->_str( $C->_from_bin("0b10101011")),160+11);
390 ok ($C->_str( $C->_from_oct("0100")), 8*8);
391 ok ($C->_str( $C->_from_oct("01000")), 8*8*8);
392 ok ($C->_str( $C->_from_oct("010001")), 8*8*8*8+1);
393 ok ($C->_str( $C->_from_oct("010007")), 8*8*8*8+7);
395 # _as_hex, _as_bin, as_oct
396 ok ($C->_str( $C->_from_hex( $C->_as_hex( $C->_new("128")))), 128);
397 ok ($C->_str( $C->_from_bin( $C->_as_bin( $C->_new("128")))), 128);
398 ok ($C->_str( $C->_from_oct( $C->_as_oct( $C->_new("128")))), 128);
400 ok ($C->_str( $C->_from_oct( $C->_as_oct( $C->_new("123456")))), 123456);
401 ok ($C->_str( $C->_from_oct( $C->_as_oct( $C->_new("123456789")))), "123456789");
402 ok ($C->_str( $C->_from_oct( $C->_as_oct( $C->_new("1234567890123")))), "1234567890123");
404 my $long = '123456789012345678901234567890';
405 ok ($C->_str( $C->_from_hex( $C->_as_hex( $C->_new($long)))), $long);
406 ok ($C->_str( $C->_from_bin( $C->_as_bin( $C->_new($long)))), $long);
407 ok ($C->_str( $C->_from_oct( $C->_as_oct( $C->_new($long)))), $long);
408 ok ($C->_str( $C->_from_hex( $C->_as_hex( $C->_new("0")))), 0);
409 ok ($C->_str( $C->_from_bin( $C->_as_bin( $C->_new("0")))), 0);
410 ok ($C->_str( $C->_from_oct( $C->_as_oct( $C->_new("0")))), 0);
411 ok ($C->_as_hex( $C->_new("0")), '0x0');
412 ok ($C->_as_bin( $C->_new("0")), '0b0');
413 ok ($C->_as_oct( $C->_new("0")), '00');
414 ok ($C->_as_hex( $C->_new("12")), '0xc');
415 ok ($C->_as_bin( $C->_new("12")), '0b1100');
416 ok ($C->_as_oct( $C->_new("64")), '0100');
419 ok ($C->_str($C->_1ex(0)), "1");
420 ok ($C->_str($C->_1ex(1)), "10");
421 ok ($C->_str($C->_1ex(2)), "100");
422 ok ($C->_str($C->_1ex(12)), "1000000000000");
423 ok ($C->_str($C->_1ex(16)), "10000000000000000");
426 $x = $C->_new("123456789");
427 ok ($C->_check($x),0);
428 ok ($C->_check(123),'123 is not a reference');
430 ###############################################################################
435 # correct empty arrays
436 $x = &{$C."::__strip_zeros"}([]); ok (@$x,1); ok ($x->[0],0);
437 # don't strip single elements
438 $x = &{$C."::__strip_zeros"}([0]); ok (@$x,1); ok ($x->[0],0);
439 $x = &{$C."::__strip_zeros"}([1]); ok (@$x,1); ok ($x->[0],1);
440 # don't strip non-zero elements
441 $x = &{$C."::__strip_zeros"}([0,1]);
442 ok (@$x,2); ok ($x->[0],0); ok ($x->[1],1);
443 $x = &{$C."::__strip_zeros"}([0,1,2]);
444 ok (@$x,3); ok ($x->[0],0); ok ($x->[1],1); ok ($x->[2],2);
446 # but strip leading zeros
447 $x = &{$C."::__strip_zeros"}([0,1,2,0]);
448 ok (@$x,3); ok ($x->[0],0); ok ($x->[1],1); ok ($x->[2],2);
450 $x = &{$C."::__strip_zeros"}([0,1,2,0,0]);
451 ok (@$x,3); ok ($x->[0],0); ok ($x->[1],1); ok ($x->[2],2);
453 $x = &{$C."::__strip_zeros"}([0,1,2,0,0,0]);
454 ok (@$x,3); ok ($x->[0],0); ok ($x->[1],1); ok ($x->[2],2);
456 # collapse multiple zeros
457 $x = &{$C."::__strip_zeros"}([0,0,0,0]);
458 ok (@$x,1); ok ($x->[0],0);