Line data Source code
1 : // Copyright 2010 the V8 project authors. All rights reserved.
2 : // Redistribution and use in source and binary forms, with or without
3 : // modification, are permitted provided that the following conditions are
4 : // met:
5 : //
6 : // * Redistributions of source code must retain the above copyright
7 : // notice, this list of conditions and the following disclaimer.
8 : // * Redistributions in binary form must reproduce the above
9 : // copyright notice, this list of conditions and the following
10 : // disclaimer in the documentation and/or other materials provided
11 : // with the distribution.
12 : // * Neither the name of Google Inc. nor the names of its
13 : // contributors may be used to endorse or promote products derived
14 : // from this software without specific prior written permission.
15 : //
16 : // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 : // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 : // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 : // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 : // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 : // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 : // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 : // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 : // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 : // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 : // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 :
28 : #include <stdlib.h>
29 :
30 : #include "src/v8.h"
31 :
32 : #include "src/base/platform/platform.h"
33 : #include "src/bignum.h"
34 : #include "test/cctest/cctest.h"
35 :
36 : namespace v8 {
37 : namespace internal {
38 : namespace test_bignum {
39 :
40 : static const int kBufferSize = 1024;
41 :
42 895 : static void AssignHexString(Bignum* bignum, const char* str) {
43 1790 : bignum->AssignHexString(Vector<const char>(str, StrLength(str)));
44 895 : }
45 :
46 :
47 205 : static void AssignDecimalString(Bignum* bignum, const char* str) {
48 410 : bignum->AssignDecimalString(Vector<const char>(str, StrLength(str)));
49 205 : }
50 :
51 :
52 25880 : TEST(Assign) {
53 : char buffer[kBufferSize];
54 5 : Bignum bignum;
55 5 : Bignum bignum2;
56 5 : bignum.AssignUInt16(0);
57 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
58 5 : CHECK_EQ(0, strcmp("0", buffer));
59 5 : bignum.AssignUInt16(0xA);
60 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
61 5 : CHECK_EQ(0, strcmp("A", buffer));
62 5 : bignum.AssignUInt16(0x20);
63 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
64 5 : CHECK_EQ(0, strcmp("20", buffer));
65 :
66 :
67 5 : bignum.AssignUInt64(0);
68 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
69 5 : CHECK_EQ(0, strcmp("0", buffer));
70 5 : bignum.AssignUInt64(0xA);
71 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
72 5 : CHECK_EQ(0, strcmp("A", buffer));
73 5 : bignum.AssignUInt64(0x20);
74 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
75 5 : CHECK_EQ(0, strcmp("20", buffer));
76 5 : bignum.AssignUInt64(0x100);
77 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
78 5 : CHECK_EQ(0, strcmp("100", buffer));
79 :
80 : // The first real test, since this will not fit into one bigit.
81 5 : bignum.AssignUInt64(0x12345678);
82 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
83 5 : CHECK_EQ(0, strcmp("12345678", buffer));
84 :
85 : uint64_t big = V8_2PART_UINT64_C(0xFFFFFFFF, FFFFFFFF);
86 5 : bignum.AssignUInt64(big);
87 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
88 5 : CHECK_EQ(0, strcmp("FFFFFFFFFFFFFFFF", buffer));
89 :
90 : big = V8_2PART_UINT64_C(0x12345678, 9ABCDEF0);
91 5 : bignum.AssignUInt64(big);
92 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
93 5 : CHECK_EQ(0, strcmp("123456789ABCDEF0", buffer));
94 :
95 5 : bignum2.AssignBignum(bignum);
96 5 : CHECK(bignum2.ToHexString(buffer, kBufferSize));
97 5 : CHECK_EQ(0, strcmp("123456789ABCDEF0", buffer));
98 :
99 5 : AssignDecimalString(&bignum, "0");
100 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
101 5 : CHECK_EQ(0, strcmp("0", buffer));
102 :
103 5 : AssignDecimalString(&bignum, "1");
104 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
105 5 : CHECK_EQ(0, strcmp("1", buffer));
106 :
107 5 : AssignDecimalString(&bignum, "1234567890");
108 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
109 5 : CHECK_EQ(0, strcmp("499602D2", buffer));
110 :
111 5 : AssignHexString(&bignum, "0");
112 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
113 5 : CHECK_EQ(0, strcmp("0", buffer));
114 :
115 5 : AssignHexString(&bignum, "123456789ABCDEF0");
116 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
117 5 : CHECK_EQ(0, strcmp("123456789ABCDEF0", buffer));
118 5 : }
119 :
120 :
121 25880 : TEST(ShiftLeft) {
122 : char buffer[kBufferSize];
123 5 : Bignum bignum;
124 5 : AssignHexString(&bignum, "0");
125 5 : bignum.ShiftLeft(100);
126 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
127 5 : CHECK_EQ(0, strcmp("0", buffer));
128 :
129 5 : AssignHexString(&bignum, "1");
130 5 : bignum.ShiftLeft(1);
131 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
132 5 : CHECK_EQ(0, strcmp("2", buffer));
133 :
134 5 : AssignHexString(&bignum, "1");
135 5 : bignum.ShiftLeft(4);
136 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
137 5 : CHECK_EQ(0, strcmp("10", buffer));
138 :
139 5 : AssignHexString(&bignum, "1");
140 5 : bignum.ShiftLeft(32);
141 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
142 5 : CHECK_EQ(0, strcmp("100000000", buffer));
143 :
144 5 : AssignHexString(&bignum, "1");
145 5 : bignum.ShiftLeft(64);
146 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
147 5 : CHECK_EQ(0, strcmp("10000000000000000", buffer));
148 :
149 5 : AssignHexString(&bignum, "123456789ABCDEF");
150 5 : bignum.ShiftLeft(64);
151 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
152 5 : CHECK_EQ(0, strcmp("123456789ABCDEF0000000000000000", buffer));
153 5 : bignum.ShiftLeft(1);
154 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
155 5 : CHECK_EQ(0, strcmp("2468ACF13579BDE0000000000000000", buffer));
156 5 : }
157 :
158 :
159 25880 : TEST(AddUInt64) {
160 : char buffer[kBufferSize];
161 5 : Bignum bignum;
162 5 : AssignHexString(&bignum, "0");
163 5 : bignum.AddUInt64(0xA);
164 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
165 5 : CHECK_EQ(0, strcmp("A", buffer));
166 :
167 5 : AssignHexString(&bignum, "1");
168 5 : bignum.AddUInt64(0xA);
169 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
170 5 : CHECK_EQ(0, strcmp("B", buffer));
171 :
172 5 : AssignHexString(&bignum, "1");
173 5 : bignum.AddUInt64(0x100);
174 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
175 5 : CHECK_EQ(0, strcmp("101", buffer));
176 :
177 5 : AssignHexString(&bignum, "1");
178 5 : bignum.AddUInt64(0xFFFF);
179 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
180 5 : CHECK_EQ(0, strcmp("10000", buffer));
181 :
182 5 : AssignHexString(&bignum, "FFFFFFF");
183 5 : bignum.AddUInt64(0x1);
184 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
185 5 : CHECK_EQ(0, strcmp("10000000", buffer));
186 :
187 5 : AssignHexString(&bignum, "10000000000000000000000000000000000000000000");
188 5 : bignum.AddUInt64(0xFFFF);
189 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
190 5 : CHECK_EQ(0, strcmp("1000000000000000000000000000000000000000FFFF", buffer));
191 :
192 5 : AssignHexString(&bignum, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF");
193 5 : bignum.AddUInt64(0x1);
194 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
195 5 : CHECK_EQ(0, strcmp("100000000000000000000000000000000000000000000", buffer));
196 :
197 5 : bignum.AssignUInt16(0x1);
198 5 : bignum.ShiftLeft(100);
199 5 : bignum.AddUInt64(1);
200 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
201 5 : CHECK_EQ(0, strcmp("10000000000000000000000001", buffer));
202 :
203 5 : bignum.AssignUInt16(0x1);
204 5 : bignum.ShiftLeft(100);
205 5 : bignum.AddUInt64(0xFFFF);
206 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
207 5 : CHECK_EQ(0, strcmp("1000000000000000000000FFFF", buffer));
208 :
209 5 : AssignHexString(&bignum, "0");
210 5 : bignum.AddUInt64(V8_2PART_UINT64_C(0xA, 00000000));
211 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
212 5 : CHECK_EQ(0, strcmp("A00000000", buffer));
213 :
214 5 : AssignHexString(&bignum, "1");
215 5 : bignum.AddUInt64(V8_2PART_UINT64_C(0xA, 00000000));
216 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
217 5 : CHECK_EQ(0, strcmp("A00000001", buffer));
218 :
219 5 : AssignHexString(&bignum, "1");
220 5 : bignum.AddUInt64(V8_2PART_UINT64_C(0x100, 00000000));
221 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
222 5 : CHECK_EQ(0, strcmp("10000000001", buffer));
223 :
224 5 : AssignHexString(&bignum, "1");
225 5 : bignum.AddUInt64(V8_2PART_UINT64_C(0xFFFF, 00000000));
226 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
227 5 : CHECK_EQ(0, strcmp("FFFF00000001", buffer));
228 :
229 5 : AssignHexString(&bignum, "FFFFFFF");
230 5 : bignum.AddUInt64(V8_2PART_UINT64_C(0x1, 00000000));
231 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
232 5 : CHECK_EQ(0, strcmp("10FFFFFFF", buffer));
233 :
234 5 : AssignHexString(&bignum, "10000000000000000000000000000000000000000000");
235 5 : bignum.AddUInt64(V8_2PART_UINT64_C(0xFFFF, 00000000));
236 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
237 5 : CHECK_EQ(0, strcmp("10000000000000000000000000000000FFFF00000000", buffer));
238 :
239 5 : AssignHexString(&bignum, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF");
240 5 : bignum.AddUInt64(V8_2PART_UINT64_C(0x1, 00000000));
241 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
242 5 : CHECK_EQ(0, strcmp("1000000000000000000000000000000000000FFFFFFFF", buffer));
243 :
244 5 : bignum.AssignUInt16(0x1);
245 5 : bignum.ShiftLeft(100);
246 5 : bignum.AddUInt64(V8_2PART_UINT64_C(0x1, 00000000));
247 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
248 5 : CHECK_EQ(0, strcmp("10000000000000000100000000", buffer));
249 :
250 5 : bignum.AssignUInt16(0x1);
251 5 : bignum.ShiftLeft(100);
252 5 : bignum.AddUInt64(V8_2PART_UINT64_C(0xFFFF, 00000000));
253 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
254 5 : CHECK_EQ(0, strcmp("10000000000000FFFF00000000", buffer));
255 5 : }
256 :
257 :
258 25880 : TEST(AddBignum) {
259 : char buffer[kBufferSize];
260 5 : Bignum bignum;
261 5 : Bignum other;
262 :
263 5 : AssignHexString(&other, "1");
264 5 : AssignHexString(&bignum, "0");
265 5 : bignum.AddBignum(other);
266 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
267 5 : CHECK_EQ(0, strcmp("1", buffer));
268 :
269 5 : AssignHexString(&bignum, "1");
270 5 : bignum.AddBignum(other);
271 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
272 5 : CHECK_EQ(0, strcmp("2", buffer));
273 :
274 5 : AssignHexString(&bignum, "FFFFFFF");
275 5 : bignum.AddBignum(other);
276 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
277 5 : CHECK_EQ(0, strcmp("10000000", buffer));
278 :
279 5 : AssignHexString(&bignum, "FFFFFFFFFFFFFF");
280 5 : bignum.AddBignum(other);
281 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
282 5 : CHECK_EQ(0, strcmp("100000000000000", buffer));
283 :
284 5 : AssignHexString(&bignum, "10000000000000000000000000000000000000000000");
285 5 : bignum.AddBignum(other);
286 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
287 5 : CHECK_EQ(0, strcmp("10000000000000000000000000000000000000000001", buffer));
288 :
289 5 : AssignHexString(&other, "1000000000000");
290 :
291 5 : AssignHexString(&bignum, "1");
292 5 : bignum.AddBignum(other);
293 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
294 5 : CHECK_EQ(0, strcmp("1000000000001", buffer));
295 :
296 5 : AssignHexString(&bignum, "FFFFFFF");
297 5 : bignum.AddBignum(other);
298 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
299 5 : CHECK_EQ(0, strcmp("100000FFFFFFF", buffer));
300 :
301 5 : AssignHexString(&bignum, "10000000000000000000000000000000000000000000");
302 5 : bignum.AddBignum(other);
303 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
304 5 : CHECK_EQ(0, strcmp("10000000000000000000000000000001000000000000", buffer));
305 :
306 5 : AssignHexString(&bignum, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF");
307 5 : bignum.AddBignum(other);
308 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
309 5 : CHECK_EQ(0, strcmp("1000000000000000000000000000000FFFFFFFFFFFF", buffer));
310 :
311 5 : bignum.AssignUInt16(0x1);
312 5 : bignum.ShiftLeft(100);
313 5 : bignum.AddBignum(other);
314 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
315 5 : CHECK_EQ(0, strcmp("10000000000001000000000000", buffer));
316 :
317 5 : other.ShiftLeft(64);
318 : // other == "10000000000000000000000000000"
319 :
320 5 : bignum.AssignUInt16(0x1);
321 5 : bignum.AddBignum(other);
322 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
323 5 : CHECK_EQ(0, strcmp("10000000000000000000000000001", buffer));
324 :
325 5 : AssignHexString(&bignum, "FFFFFFF");
326 5 : bignum.AddBignum(other);
327 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
328 5 : CHECK_EQ(0, strcmp("1000000000000000000000FFFFFFF", buffer));
329 :
330 5 : AssignHexString(&bignum, "10000000000000000000000000000000000000000000");
331 5 : bignum.AddBignum(other);
332 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
333 5 : CHECK_EQ(0, strcmp("10000000000000010000000000000000000000000000", buffer));
334 :
335 5 : AssignHexString(&bignum, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF");
336 5 : bignum.AddBignum(other);
337 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
338 5 : CHECK_EQ(0, strcmp("100000000000000FFFFFFFFFFFFFFFFFFFFFFFFFFFF", buffer));
339 :
340 5 : bignum.AssignUInt16(0x1);
341 5 : bignum.ShiftLeft(100);
342 5 : bignum.AddBignum(other);
343 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
344 5 : CHECK_EQ(0, strcmp("10010000000000000000000000000", buffer));
345 5 : }
346 :
347 :
348 25880 : TEST(SubtractBignum) {
349 : char buffer[kBufferSize];
350 5 : Bignum bignum;
351 5 : Bignum other;
352 :
353 5 : AssignHexString(&bignum, "1");
354 5 : AssignHexString(&other, "0");
355 5 : bignum.SubtractBignum(other);
356 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
357 5 : CHECK_EQ(0, strcmp("1", buffer));
358 :
359 5 : AssignHexString(&bignum, "2");
360 5 : AssignHexString(&other, "0");
361 5 : bignum.SubtractBignum(other);
362 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
363 5 : CHECK_EQ(0, strcmp("2", buffer));
364 :
365 5 : AssignHexString(&bignum, "10000000");
366 5 : AssignHexString(&other, "1");
367 5 : bignum.SubtractBignum(other);
368 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
369 5 : CHECK_EQ(0, strcmp("FFFFFFF", buffer));
370 :
371 5 : AssignHexString(&bignum, "100000000000000");
372 5 : AssignHexString(&other, "1");
373 5 : bignum.SubtractBignum(other);
374 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
375 5 : CHECK_EQ(0, strcmp("FFFFFFFFFFFFFF", buffer));
376 :
377 5 : AssignHexString(&bignum, "10000000000000000000000000000000000000000001");
378 5 : AssignHexString(&other, "1");
379 5 : bignum.SubtractBignum(other);
380 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
381 5 : CHECK_EQ(0, strcmp("10000000000000000000000000000000000000000000", buffer));
382 :
383 5 : AssignHexString(&bignum, "1000000000001");
384 5 : AssignHexString(&other, "1000000000000");
385 5 : bignum.SubtractBignum(other);
386 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
387 5 : CHECK_EQ(0, strcmp("1", buffer));
388 :
389 5 : AssignHexString(&bignum, "100000FFFFFFF");
390 5 : AssignHexString(&other, "1000000000000");
391 5 : bignum.SubtractBignum(other);
392 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
393 5 : CHECK_EQ(0, strcmp("FFFFFFF", buffer));
394 :
395 5 : AssignHexString(&bignum, "10000000000000000000000000000001000000000000");
396 5 : AssignHexString(&other, "1000000000000");
397 5 : bignum.SubtractBignum(other);
398 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
399 5 : CHECK_EQ(0, strcmp("10000000000000000000000000000000000000000000", buffer));
400 :
401 5 : AssignHexString(&bignum, "1000000000000000000000000000000FFFFFFFFFFFF");
402 5 : AssignHexString(&other, "1000000000000");
403 5 : bignum.SubtractBignum(other);
404 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
405 5 : CHECK_EQ(0, strcmp("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", buffer));
406 :
407 5 : bignum.AssignUInt16(0x1);
408 5 : bignum.ShiftLeft(100);
409 : // "10 0000 0000 0000 0000 0000 0000"
410 5 : AssignHexString(&other, "1000000000000");
411 5 : bignum.SubtractBignum(other);
412 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
413 5 : CHECK_EQ(0, strcmp("FFFFFFFFFFFFF000000000000", buffer));
414 :
415 5 : AssignHexString(&other, "1000000000000");
416 5 : other.ShiftLeft(48);
417 : // other == "1000000000000000000000000"
418 :
419 5 : bignum.AssignUInt16(0x1);
420 5 : bignum.ShiftLeft(100);
421 : // bignum == "10000000000000000000000000"
422 5 : bignum.SubtractBignum(other);
423 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
424 5 : CHECK_EQ(0, strcmp("F000000000000000000000000", buffer));
425 :
426 5 : other.AssignUInt16(0x1);
427 5 : other.ShiftLeft(35);
428 : // other == "800000000"
429 5 : AssignHexString(&bignum, "FFFFFFF");
430 5 : bignum.ShiftLeft(60);
431 : // bignum = FFFFFFF000000000000000
432 5 : bignum.SubtractBignum(other);
433 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
434 5 : CHECK_EQ(0, strcmp("FFFFFFEFFFFFF800000000", buffer));
435 :
436 5 : AssignHexString(&bignum, "10000000000000000000000000000000000000000000");
437 5 : bignum.SubtractBignum(other);
438 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
439 5 : CHECK_EQ(0, strcmp("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF800000000", buffer));
440 :
441 5 : AssignHexString(&bignum, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF");
442 5 : bignum.SubtractBignum(other);
443 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
444 5 : CHECK_EQ(0, strcmp("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF7FFFFFFFF", buffer));
445 5 : }
446 :
447 :
448 25880 : TEST(MultiplyUInt32) {
449 : char buffer[kBufferSize];
450 5 : Bignum bignum;
451 :
452 5 : AssignHexString(&bignum, "0");
453 5 : bignum.MultiplyByUInt32(0x25);
454 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
455 5 : CHECK_EQ(0, strcmp("0", buffer));
456 :
457 5 : AssignHexString(&bignum, "2");
458 5 : bignum.MultiplyByUInt32(0x5);
459 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
460 5 : CHECK_EQ(0, strcmp("A", buffer));
461 :
462 5 : AssignHexString(&bignum, "10000000");
463 5 : bignum.MultiplyByUInt32(0x9);
464 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
465 5 : CHECK_EQ(0, strcmp("90000000", buffer));
466 :
467 5 : AssignHexString(&bignum, "100000000000000");
468 5 : bignum.MultiplyByUInt32(0xFFFF);
469 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
470 5 : CHECK_EQ(0, strcmp("FFFF00000000000000", buffer));
471 :
472 5 : AssignHexString(&bignum, "100000000000000");
473 5 : bignum.MultiplyByUInt32(0xFFFFFFFF);
474 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
475 5 : CHECK_EQ(0, strcmp("FFFFFFFF00000000000000", buffer));
476 :
477 5 : AssignHexString(&bignum, "1234567ABCD");
478 5 : bignum.MultiplyByUInt32(0xFFF);
479 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
480 5 : CHECK_EQ(0, strcmp("12333335552433", buffer));
481 :
482 5 : AssignHexString(&bignum, "1234567ABCD");
483 5 : bignum.MultiplyByUInt32(0xFFFFFFF);
484 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
485 5 : CHECK_EQ(0, strcmp("12345679998A985433", buffer));
486 :
487 5 : AssignHexString(&bignum, "FFFFFFFFFFFFFFFF");
488 5 : bignum.MultiplyByUInt32(0x2);
489 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
490 5 : CHECK_EQ(0, strcmp("1FFFFFFFFFFFFFFFE", buffer));
491 :
492 5 : AssignHexString(&bignum, "FFFFFFFFFFFFFFFF");
493 5 : bignum.MultiplyByUInt32(0x4);
494 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
495 5 : CHECK_EQ(0, strcmp("3FFFFFFFFFFFFFFFC", buffer));
496 :
497 5 : AssignHexString(&bignum, "FFFFFFFFFFFFFFFF");
498 5 : bignum.MultiplyByUInt32(0xF);
499 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
500 5 : CHECK_EQ(0, strcmp("EFFFFFFFFFFFFFFF1", buffer));
501 :
502 5 : AssignHexString(&bignum, "FFFFFFFFFFFFFFFF");
503 5 : bignum.MultiplyByUInt32(0xFFFFFF);
504 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
505 5 : CHECK_EQ(0, strcmp("FFFFFEFFFFFFFFFF000001", buffer));
506 :
507 5 : bignum.AssignUInt16(0x1);
508 5 : bignum.ShiftLeft(100);
509 : // "10 0000 0000 0000 0000 0000 0000"
510 5 : bignum.MultiplyByUInt32(2);
511 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
512 5 : CHECK_EQ(0, strcmp("20000000000000000000000000", buffer));
513 :
514 5 : bignum.AssignUInt16(0x1);
515 5 : bignum.ShiftLeft(100);
516 : // "10 0000 0000 0000 0000 0000 0000"
517 5 : bignum.MultiplyByUInt32(0xF);
518 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
519 5 : CHECK_EQ(0, strcmp("F0000000000000000000000000", buffer));
520 :
521 5 : bignum.AssignUInt16(0xFFFF);
522 5 : bignum.ShiftLeft(100);
523 : // "FFFF0 0000 0000 0000 0000 0000 0000"
524 5 : bignum.MultiplyByUInt32(0xFFFF);
525 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
526 5 : CHECK_EQ(0, strcmp("FFFE00010000000000000000000000000", buffer));
527 :
528 5 : bignum.AssignUInt16(0xFFFF);
529 5 : bignum.ShiftLeft(100);
530 : // "FFFF0 0000 0000 0000 0000 0000 0000"
531 5 : bignum.MultiplyByUInt32(0xFFFFFFFF);
532 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
533 5 : CHECK_EQ(0, strcmp("FFFEFFFF00010000000000000000000000000", buffer));
534 :
535 5 : bignum.AssignUInt16(0xFFFF);
536 5 : bignum.ShiftLeft(100);
537 : // "FFFF0 0000 0000 0000 0000 0000 0000"
538 5 : bignum.MultiplyByUInt32(0xFFFFFFFF);
539 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
540 5 : CHECK_EQ(0, strcmp("FFFEFFFF00010000000000000000000000000", buffer));
541 :
542 5 : AssignDecimalString(&bignum, "15611230384529777");
543 5 : bignum.MultiplyByUInt32(10000000);
544 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
545 5 : CHECK_EQ(0, strcmp("210EDD6D4CDD2580EE80", buffer));
546 5 : }
547 :
548 :
549 25880 : TEST(MultiplyUInt64) {
550 : char buffer[kBufferSize];
551 5 : Bignum bignum;
552 :
553 5 : AssignHexString(&bignum, "0");
554 5 : bignum.MultiplyByUInt64(0x25);
555 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
556 5 : CHECK_EQ(0, strcmp("0", buffer));
557 :
558 5 : AssignHexString(&bignum, "2");
559 5 : bignum.MultiplyByUInt64(0x5);
560 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
561 5 : CHECK_EQ(0, strcmp("A", buffer));
562 :
563 5 : AssignHexString(&bignum, "10000000");
564 5 : bignum.MultiplyByUInt64(0x9);
565 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
566 5 : CHECK_EQ(0, strcmp("90000000", buffer));
567 :
568 5 : AssignHexString(&bignum, "100000000000000");
569 5 : bignum.MultiplyByUInt64(0xFFFF);
570 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
571 5 : CHECK_EQ(0, strcmp("FFFF00000000000000", buffer));
572 :
573 5 : AssignHexString(&bignum, "100000000000000");
574 5 : bignum.MultiplyByUInt64(V8_2PART_UINT64_C(0xFFFFFFFF, FFFFFFFF));
575 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
576 5 : CHECK_EQ(0, strcmp("FFFFFFFFFFFFFFFF00000000000000", buffer));
577 :
578 5 : AssignHexString(&bignum, "1234567ABCD");
579 5 : bignum.MultiplyByUInt64(0xFFF);
580 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
581 5 : CHECK_EQ(0, strcmp("12333335552433", buffer));
582 :
583 5 : AssignHexString(&bignum, "1234567ABCD");
584 5 : bignum.MultiplyByUInt64(V8_2PART_UINT64_C(0xFF, FFFFFFFF));
585 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
586 5 : CHECK_EQ(0, strcmp("1234567ABCBDCBA985433", buffer));
587 :
588 5 : AssignHexString(&bignum, "FFFFFFFFFFFFFFFF");
589 5 : bignum.MultiplyByUInt64(0x2);
590 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
591 5 : CHECK_EQ(0, strcmp("1FFFFFFFFFFFFFFFE", buffer));
592 :
593 5 : AssignHexString(&bignum, "FFFFFFFFFFFFFFFF");
594 5 : bignum.MultiplyByUInt64(0x4);
595 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
596 5 : CHECK_EQ(0, strcmp("3FFFFFFFFFFFFFFFC", buffer));
597 :
598 5 : AssignHexString(&bignum, "FFFFFFFFFFFFFFFF");
599 5 : bignum.MultiplyByUInt64(0xF);
600 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
601 5 : CHECK_EQ(0, strcmp("EFFFFFFFFFFFFFFF1", buffer));
602 :
603 5 : AssignHexString(&bignum, "FFFFFFFFFFFFFFFF");
604 5 : bignum.MultiplyByUInt64(V8_2PART_UINT64_C(0xFFFFFFFF, FFFFFFFF));
605 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
606 5 : CHECK_EQ(0, strcmp("FFFFFFFFFFFFFFFE0000000000000001", buffer));
607 :
608 5 : bignum.AssignUInt16(0x1);
609 5 : bignum.ShiftLeft(100);
610 : // "10 0000 0000 0000 0000 0000 0000"
611 5 : bignum.MultiplyByUInt64(2);
612 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
613 5 : CHECK_EQ(0, strcmp("20000000000000000000000000", buffer));
614 :
615 5 : bignum.AssignUInt16(0x1);
616 5 : bignum.ShiftLeft(100);
617 : // "10 0000 0000 0000 0000 0000 0000"
618 5 : bignum.MultiplyByUInt64(0xF);
619 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
620 5 : CHECK_EQ(0, strcmp("F0000000000000000000000000", buffer));
621 :
622 5 : bignum.AssignUInt16(0xFFFF);
623 5 : bignum.ShiftLeft(100);
624 : // "FFFF0 0000 0000 0000 0000 0000 0000"
625 5 : bignum.MultiplyByUInt64(0xFFFF);
626 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
627 5 : CHECK_EQ(0, strcmp("FFFE00010000000000000000000000000", buffer));
628 :
629 5 : bignum.AssignUInt16(0xFFFF);
630 5 : bignum.ShiftLeft(100);
631 : // "FFFF0 0000 0000 0000 0000 0000 0000"
632 5 : bignum.MultiplyByUInt64(0xFFFFFFFF);
633 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
634 5 : CHECK_EQ(0, strcmp("FFFEFFFF00010000000000000000000000000", buffer));
635 :
636 5 : bignum.AssignUInt16(0xFFFF);
637 5 : bignum.ShiftLeft(100);
638 : // "FFFF0 0000 0000 0000 0000 0000 0000"
639 5 : bignum.MultiplyByUInt64(V8_2PART_UINT64_C(0xFFFFFFFF, FFFFFFFF));
640 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
641 5 : CHECK_EQ(0, strcmp("FFFEFFFFFFFFFFFF00010000000000000000000000000", buffer));
642 :
643 5 : AssignDecimalString(&bignum, "15611230384529777");
644 5 : bignum.MultiplyByUInt64(V8_2PART_UINT64_C(0x8AC72304, 89E80000));
645 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
646 5 : CHECK_EQ(0, strcmp("1E10EE4B11D15A7F3DE7F3C7680000", buffer));
647 5 : }
648 :
649 :
650 25880 : TEST(MultiplyPowerOfTen) {
651 : char buffer[kBufferSize];
652 5 : Bignum bignum;
653 :
654 5 : AssignDecimalString(&bignum, "1234");
655 5 : bignum.MultiplyByPowerOfTen(1);
656 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
657 5 : CHECK_EQ(0, strcmp("3034", buffer));
658 :
659 5 : AssignDecimalString(&bignum, "1234");
660 5 : bignum.MultiplyByPowerOfTen(2);
661 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
662 5 : CHECK_EQ(0, strcmp("1E208", buffer));
663 :
664 5 : AssignDecimalString(&bignum, "1234");
665 5 : bignum.MultiplyByPowerOfTen(3);
666 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
667 5 : CHECK_EQ(0, strcmp("12D450", buffer));
668 :
669 5 : AssignDecimalString(&bignum, "1234");
670 5 : bignum.MultiplyByPowerOfTen(4);
671 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
672 5 : CHECK_EQ(0, strcmp("BC4B20", buffer));
673 :
674 5 : AssignDecimalString(&bignum, "1234");
675 5 : bignum.MultiplyByPowerOfTen(5);
676 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
677 5 : CHECK_EQ(0, strcmp("75AEF40", buffer));
678 :
679 5 : AssignDecimalString(&bignum, "1234");
680 5 : bignum.MultiplyByPowerOfTen(6);
681 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
682 5 : CHECK_EQ(0, strcmp("498D5880", buffer));
683 :
684 5 : AssignDecimalString(&bignum, "1234");
685 5 : bignum.MultiplyByPowerOfTen(7);
686 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
687 5 : CHECK_EQ(0, strcmp("2DF857500", buffer));
688 :
689 5 : AssignDecimalString(&bignum, "1234");
690 5 : bignum.MultiplyByPowerOfTen(8);
691 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
692 5 : CHECK_EQ(0, strcmp("1CBB369200", buffer));
693 :
694 5 : AssignDecimalString(&bignum, "1234");
695 5 : bignum.MultiplyByPowerOfTen(9);
696 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
697 5 : CHECK_EQ(0, strcmp("11F5021B400", buffer));
698 :
699 5 : AssignDecimalString(&bignum, "1234");
700 5 : bignum.MultiplyByPowerOfTen(10);
701 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
702 5 : CHECK_EQ(0, strcmp("B3921510800", buffer));
703 :
704 5 : AssignDecimalString(&bignum, "1234");
705 5 : bignum.MultiplyByPowerOfTen(11);
706 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
707 5 : CHECK_EQ(0, strcmp("703B4D2A5000", buffer));
708 :
709 5 : AssignDecimalString(&bignum, "1234");
710 5 : bignum.MultiplyByPowerOfTen(12);
711 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
712 5 : CHECK_EQ(0, strcmp("4625103A72000", buffer));
713 :
714 5 : AssignDecimalString(&bignum, "1234");
715 5 : bignum.MultiplyByPowerOfTen(13);
716 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
717 5 : CHECK_EQ(0, strcmp("2BD72A24874000", buffer));
718 :
719 5 : AssignDecimalString(&bignum, "1234");
720 5 : bignum.MultiplyByPowerOfTen(14);
721 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
722 5 : CHECK_EQ(0, strcmp("1B667A56D488000", buffer));
723 :
724 5 : AssignDecimalString(&bignum, "1234");
725 5 : bignum.MultiplyByPowerOfTen(15);
726 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
727 5 : CHECK_EQ(0, strcmp("11200C7644D50000", buffer));
728 :
729 5 : AssignDecimalString(&bignum, "1234");
730 5 : bignum.MultiplyByPowerOfTen(16);
731 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
732 5 : CHECK_EQ(0, strcmp("AB407C9EB0520000", buffer));
733 :
734 5 : AssignDecimalString(&bignum, "1234");
735 5 : bignum.MultiplyByPowerOfTen(17);
736 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
737 5 : CHECK_EQ(0, strcmp("6B084DE32E3340000", buffer));
738 :
739 5 : AssignDecimalString(&bignum, "1234");
740 5 : bignum.MultiplyByPowerOfTen(18);
741 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
742 5 : CHECK_EQ(0, strcmp("42E530ADFCE0080000", buffer));
743 :
744 5 : AssignDecimalString(&bignum, "1234");
745 5 : bignum.MultiplyByPowerOfTen(19);
746 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
747 5 : CHECK_EQ(0, strcmp("29CF3E6CBE0C0500000", buffer));
748 :
749 5 : AssignDecimalString(&bignum, "1234");
750 5 : bignum.MultiplyByPowerOfTen(20);
751 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
752 5 : CHECK_EQ(0, strcmp("1A218703F6C783200000", buffer));
753 :
754 5 : AssignDecimalString(&bignum, "1234");
755 5 : bignum.MultiplyByPowerOfTen(21);
756 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
757 5 : CHECK_EQ(0, strcmp("1054F4627A3CB1F400000", buffer));
758 :
759 5 : AssignDecimalString(&bignum, "1234");
760 5 : bignum.MultiplyByPowerOfTen(22);
761 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
762 5 : CHECK_EQ(0, strcmp("A3518BD8C65EF38800000", buffer));
763 :
764 5 : AssignDecimalString(&bignum, "1234");
765 5 : bignum.MultiplyByPowerOfTen(23);
766 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
767 5 : CHECK_EQ(0, strcmp("6612F7677BFB5835000000", buffer));
768 :
769 5 : AssignDecimalString(&bignum, "1234");
770 5 : bignum.MultiplyByPowerOfTen(24);
771 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
772 5 : CHECK_EQ(0, strcmp("3FCBDAA0AD7D17212000000", buffer));
773 :
774 5 : AssignDecimalString(&bignum, "1234");
775 5 : bignum.MultiplyByPowerOfTen(25);
776 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
777 5 : CHECK_EQ(0, strcmp("27DF68A46C6E2E74B4000000", buffer));
778 :
779 5 : AssignDecimalString(&bignum, "1234");
780 5 : bignum.MultiplyByPowerOfTen(26);
781 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
782 5 : CHECK_EQ(0, strcmp("18EBA166C3C4DD08F08000000", buffer));
783 :
784 5 : AssignDecimalString(&bignum, "1234");
785 5 : bignum.MultiplyByPowerOfTen(27);
786 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
787 5 : CHECK_EQ(0, strcmp("F9344E03A5B0A259650000000", buffer));
788 :
789 5 : AssignDecimalString(&bignum, "1234");
790 5 : bignum.MultiplyByPowerOfTen(28);
791 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
792 5 : CHECK_EQ(0, strcmp("9BC0B0C2478E6577DF20000000", buffer));
793 :
794 5 : AssignDecimalString(&bignum, "1234");
795 5 : bignum.MultiplyByPowerOfTen(29);
796 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
797 5 : CHECK_EQ(0, strcmp("61586E796CB8FF6AEB740000000", buffer));
798 :
799 5 : AssignDecimalString(&bignum, "1234");
800 5 : bignum.MultiplyByPowerOfTen(30);
801 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
802 5 : CHECK_EQ(0, strcmp("3CD7450BE3F39FA2D32880000000", buffer));
803 :
804 5 : AssignDecimalString(&bignum, "1234");
805 5 : bignum.MultiplyByPowerOfTen(31);
806 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
807 5 : CHECK_EQ(0, strcmp("26068B276E7843C5C3F9500000000", buffer));
808 :
809 5 : AssignDecimalString(&bignum, "1234");
810 5 : bignum.MultiplyByPowerOfTen(50);
811 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
812 5 : CHECK_EQ(0, strcmp("149D1B4CFED03B23AB5F4E1196EF45C08000000000000", buffer));
813 :
814 5 : AssignDecimalString(&bignum, "1234");
815 5 : bignum.MultiplyByPowerOfTen(100);
816 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
817 5 : CHECK_EQ(0,
818 : strcmp(
819 : "5827249F27165024FBC47DFCA9359BF316332D1B91ACEECF471FBAB06D9B2"
820 : "0000000000000000000000000",
821 : buffer));
822 :
823 5 : AssignDecimalString(&bignum, "1234");
824 5 : bignum.MultiplyByPowerOfTen(200);
825 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
826 5 : CHECK_EQ(0,
827 : strcmp(
828 : "64C1F5C06C3816AFBF8DAFD5A3D756365BB0FD020E6F084E759C1F7C99E4F"
829 : "55B9ACC667CEC477EB958C2AEEB3C6C19BA35A1AD30B35C51EB72040920000"
830 : "0000000000000000000000000000000000000000000000",
831 : buffer));
832 :
833 5 : AssignDecimalString(&bignum, "1234");
834 5 : bignum.MultiplyByPowerOfTen(500);
835 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
836 5 : CHECK_EQ(0,
837 : strcmp(
838 : "96741A625EB5D7C91039FEB5C5ACD6D9831EDA5B083D800E6019442C8C8223"
839 : "3EAFB3501FE2058062221E15121334928880827DEE1EC337A8B26489F3A40A"
840 : "CB440A2423734472D10BFCE886F41B3AF9F9503013D86D088929CA86EEB4D8"
841 : "B9C831D0BD53327B994A0326227CFD0ECBF2EB48B02387AAE2D4CCCDF1F1A1"
842 : "B8CC4F1FA2C56AD40D0E4DAA9C28CDBF0A549098EA13200000000000000000"
843 : "00000000000000000000000000000000000000000000000000000000000000"
844 : "0000000000000000000000000000000000000000000000",
845 : buffer));
846 :
847 5 : AssignDecimalString(&bignum, "1234");
848 5 : bignum.MultiplyByPowerOfTen(1000);
849 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
850 5 : CHECK_EQ(0,
851 : strcmp(
852 : "1258040F99B1CD1CC9819C676D413EA50E4A6A8F114BB0C65418C62D399B81"
853 : "6361466CA8E095193E1EE97173553597C96673AF67FAFE27A66E7EF2E5EF2E"
854 : "E3F5F5070CC17FE83BA53D40A66A666A02F9E00B0E11328D2224B8694C7372"
855 : "F3D536A0AD1985911BD361496F268E8B23112500EAF9B88A9BC67B2AB04D38"
856 : "7FEFACD00F5AF4F764F9ABC3ABCDE54612DE38CD90CB6647CA389EA0E86B16"
857 : "BF7A1F34086E05ADBE00BD1673BE00FAC4B34AF1091E8AD50BA675E0381440"
858 : "EA8E9D93E75D816BAB37C9844B1441C38FC65CF30ABB71B36433AF26DD97BD"
859 : "ABBA96C03B4919B8F3515B92826B85462833380DC193D79F69D20DD6038C99"
860 : "6114EF6C446F0BA28CC772ACBA58B81C04F8FFDE7B18C4E5A3ABC51E637FDF"
861 : "6E37FDFF04C940919390F4FF92000000000000000000000000000000000000"
862 : "00000000000000000000000000000000000000000000000000000000000000"
863 : "00000000000000000000000000000000000000000000000000000000000000"
864 : "00000000000000000000000000000000000000000000000000000000000000"
865 : "0000000000000000000000000000",
866 : buffer));
867 :
868 5 : Bignum bignum2;
869 : AssignHexString(&bignum2, "3DA774C07FB5DF54284D09C675A492165B830D5DAAEB2A7501"
870 : "DA17CF9DFA1CA2282269F92A25A97314296B717E3DCBB9FE17"
871 : "41A842FE2913F540F40796F2381155763502C58B15AF7A7F88"
872 : "6F744C9164FF409A28F7FA0C41F89ED79C1BE9F322C8578B97"
873 : "841F1CBAA17D901BE1230E3C00E1C643AF32638B5674E01FEA"
874 : "96FC90864E621B856A9E1CE56E6EB545B9C2F8F0CC10DDA88D"
875 : "CC6D282605F8DB67044F2DFD3695E7BA63877AE16701536AE6"
876 : "567C794D0BFE338DFBB42D92D4215AF3BB22BF0A8B283FDDC2"
877 5 : "C667A10958EA6D2");
878 5 : CHECK(bignum2.ToHexString(buffer, kBufferSize));
879 5 : CHECK_EQ(0, strcmp(
880 : "3DA774C07FB5DF54284D09C675A492165B830D5DAAEB2A7501"
881 : "DA17CF9DFA1CA2282269F92A25A97314296B717E3DCBB9FE17"
882 : "41A842FE2913F540F40796F2381155763502C58B15AF7A7F88"
883 : "6F744C9164FF409A28F7FA0C41F89ED79C1BE9F322C8578B97"
884 : "841F1CBAA17D901BE1230E3C00E1C643AF32638B5674E01FEA"
885 : "96FC90864E621B856A9E1CE56E6EB545B9C2F8F0CC10DDA88D"
886 : "CC6D282605F8DB67044F2DFD3695E7BA63877AE16701536AE6"
887 : "567C794D0BFE338DFBB42D92D4215AF3BB22BF0A8B283FDDC2"
888 : "C667A10958EA6D2",
889 : buffer));
890 :
891 5 : bignum.AssignBignum(bignum2);
892 5 : bignum.MultiplyByPowerOfTen(1);
893 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
894 5 : CHECK_EQ(0,
895 : strcmp(
896 : "2688A8F84FD1AB949930261C0986DB4DF931E85A8AD2FA8921284EE1C2BC51"
897 : "E55915823BBA5789E7EC99E326EEE69F543ECE890929DED9AC79489884BE57"
898 : "630AD569E121BB76ED8DAC8FB545A8AFDADF1F8860599AFC47A93B6346C191"
899 : "7237F5BD36B73EB29371F4A4EE7A116CB5E8E5808D1BEA4D7F7E3716090C13"
900 : "F29E5DDA53F0FD513362A2D20F6505314B9419DB967F8A8A89589FC43917C3"
901 : "BB892062B17CBE421DB0D47E34ACCCE060D422CFF60DCBD0277EE038BD509C"
902 : "7BC494D8D854F5B76696F927EA99BC00C4A5D7928434",
903 : buffer));
904 :
905 5 : bignum.AssignBignum(bignum2);
906 5 : bignum.MultiplyByPowerOfTen(2);
907 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
908 5 : CHECK_EQ(0,
909 : strcmp(
910 : "1815699B31E30B3CDFBE17D185F44910BBBF313896C3DC95B4B9314D19B5B32"
911 : "F57AD71655476B630F3E02DF855502394A74115A5BA2B480BCBCD5F52F6F69D"
912 : "E6C5622CB5152A54788BD9D14B896DE8CB73B53C3800DDACC9C51E0C38FAE76"
913 : "2F9964232872F9C2738E7150C4AE3F1B18F70583172706FAEE26DC5A78C77A2"
914 : "FAA874769E52C01DA5C3499F233ECF3C90293E0FB69695D763DAA3AEDA5535B"
915 : "43DAEEDF6E9528E84CEE0EC000C3C8495C1F9C89F6218AF4C23765261CD5ADD"
916 : "0787351992A01E5BB8F2A015807AE7A6BB92A08",
917 : buffer));
918 :
919 5 : bignum.AssignBignum(bignum2);
920 5 : bignum.MultiplyByPowerOfTen(5);
921 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
922 5 : CHECK_EQ(0,
923 : strcmp(
924 : "5E13A4863ADEE3E5C9FE8D0A73423D695D62D8450CED15A8C9F368952C6DC3"
925 : "F0EE7D82F3D1EFB7AF38A3B3920D410AFCAD563C8F5F39116E141A3C5C14B3"
926 : "58CD73077EA35AAD59F6E24AD98F10D5555ABBFBF33AC361EAF429FD5FBE94"
927 : "17DA9EF2F2956011F9F93646AA38048A681D984ED88127073443247CCC167C"
928 : "B354A32206EF5A733E73CF82D795A1AD598493211A6D613C39515E0E0F6304"
929 : "DCD9C810F3518C7F6A7CB6C81E99E02FCC65E8FDB7B7AE97306CC16A8631CE"
930 : "0A2AEF6568276BE4C176964A73C153FDE018E34CB4C2F40",
931 : buffer));
932 :
933 5 : bignum.AssignBignum(bignum2);
934 5 : bignum.MultiplyByPowerOfTen(10);
935 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
936 5 : CHECK_EQ(0,
937 : strcmp(
938 : "8F8CB8EB51945A7E815809F6121EF2F4E61EF3405CD9432CAD2709749EEAFD"
939 : "1B81E843F14A3667A7BDCCC9E0BB795F63CDFDB62844AC7438976C885A0116"
940 : "29607DA54F9C023CC366570B7637ED0F855D931752038A614922D0923E382C"
941 : "B8E5F6C975672DB76E0DE471937BB9EDB11E28874F1C122D5E1EF38CECE9D0"
942 : "0723056BCBD4F964192B76830634B1D322B7EB0062F3267E84F5C824343A77"
943 : "4B7DCEE6DD464F01EBDC8C671BB18BB4EF4300A42474A6C77243F2A12B03BF"
944 : "0443C38A1C0D2701EDB393135AE0DEC94211F9D4EB51F990800",
945 : buffer));
946 :
947 5 : bignum.AssignBignum(bignum2);
948 5 : bignum.MultiplyByPowerOfTen(50);
949 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
950 5 : CHECK_EQ(0,
951 : strcmp(
952 : "107A8BE345E24407372FC1DE442CBA696BC23C4FFD5B4BDFD9E5C39559815"
953 : "86628CF8472D2D589F2FC2BAD6E0816EC72CBF85CCA663D8A1EC6C51076D8"
954 : "2D247E6C26811B7EC4D4300FB1F91028DCB7B2C4E7A60C151161AA7E65E79"
955 : "B40917B12B2B5FBE7745984D4E8EFA31F9AE6062427B068B144A9CB155873"
956 : "E7C0C9F0115E5AC72DC5A73C4796DB970BF9205AB8C77A6996EB1B417F9D1"
957 : "6232431E6313C392203601B9C22CC10DDA88DCC6D282605F8DB67044F2DFD"
958 : "3695E7BA63877AE16701536AE6567C794D0BFE338DFBB42D924CF964BD2C0"
959 : "F586E03A2FCD35A408000000000000",
960 : buffer));
961 :
962 5 : bignum.AssignBignum(bignum2);
963 5 : bignum.MultiplyByPowerOfTen(100);
964 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
965 5 : CHECK_EQ(0,
966 : strcmp(
967 : "46784A90ACD0ED3E7759CC585FB32D36EB6034A6F78D92604E3BAA5ED3D8B"
968 : "6E60E854439BE448897FB4B7EA5A3D873AA0FCB3CFFD80D0530880E45F511"
969 : "722A50CE7E058B5A6F5464DB7500E34984EE3202A9441F44FA1554C0CEA96"
970 : "B438A36F25E7C9D56D71AE2CD313EC37534DA299AC0854FC48591A7CF3171"
971 : "31265AA4AE62DE32344CE7BEEEF894AE686A2DAAFE5D6D9A10971FFD9C064"
972 : "5079B209E1048F58B5192D41D84336AC4C8C489EEF00939CFC9D55C122036"
973 : "01B9C22CC10DDA88DCC6D282605F8DB67044F2DFD3695E7BA3F67B96D3A32"
974 : "E11FB5561B68744C4035B0800DC166D49D98E3FD1D5BB2000000000000000"
975 : "0000000000",
976 : buffer));
977 :
978 5 : bignum.AssignBignum(bignum2);
979 5 : bignum.MultiplyByPowerOfTen(200);
980 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
981 5 : CHECK_EQ(0,
982 : strcmp(
983 : "508BD351221DF139D72D88CDC0416845A53EE2D0E6B98352509A9AC312F8C"
984 : "6CB1A144889416201E0B6CE66EA3EBE259B5FD79ECFC1FD77963CE516CC7E"
985 : "2FE73D4B5B710C19F6BCB092C7A2FD76286543B8DBD2C596DFF2C896720BA"
986 : "DFF7BC9C366ACEA3A880AEC287C5E6207DF2739B5326FC19D773BD830B109"
987 : "ED36C7086544BF8FDB9D4B73719C2B5BC2F571A5937EC46876CD428281F6B"
988 : "F287E1E07F25C1B1D46BC37324FF657A8B2E0071DB83B86123CA34004F406"
989 : "001082D7945E90C6E8C9A9FEC2B44BE0DDA46E9F52B152E4D1336D2FCFBC9"
990 : "96E30CA0082256737365158FE36482AA7EB9DAF2AB128F10E7551A3CD5BE6"
991 : "0A922F3A7D5EED38B634A7EC95BCF7021BA6820A292000000000000000000"
992 : "00000000000000000000000000000000",
993 : buffer));
994 :
995 5 : bignum.AssignBignum(bignum2);
996 5 : bignum.MultiplyByPowerOfTen(500);
997 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
998 5 : CHECK_EQ(0,
999 : strcmp(
1000 : "7845F900E475B5086885BAAAE67C8E85185ACFE4633727F82A4B06B5582AC"
1001 : "BE933C53357DA0C98C20C5AC900C4D76A97247DF52B79F48F9E35840FB715"
1002 : "D392CE303E22622B0CF82D9471B398457DD3196F639CEE8BBD2C146873841"
1003 : "F0699E6C41F04FC7A54B48CEB995BEB6F50FE81DE9D87A8D7F849CC523553"
1004 : "7B7BBBC1C7CAAFF6E9650BE03B308C6D31012AEF9580F70D3EE2083ADE126"
1005 : "8940FA7D6308E239775DFD2F8C97FF7EBD525DAFA6512216F7047A62A93DC"
1006 : "38A0165BDC67E250DCC96A0181DE935A70B38704DC71819F02FC5261FF7E1"
1007 : "E5F11907678B0A3E519FF4C10A867B0C26CE02BE6960BA8621A87303C101C"
1008 : "3F88798BB9F7739655946F8B5744E6B1EAF10B0C5621330F0079209033C69"
1009 : "20DE2E2C8D324F0624463735D482BF291926C22A910F5B80FA25170B6B57D"
1010 : "8D5928C7BCA3FE87461275F69BD5A1B83181DAAF43E05FC3C72C4E93111B6"
1011 : "6205EBF49B28FEDFB7E7526CBDA658A332000000000000000000000000000"
1012 : "0000000000000000000000000000000000000000000000000000000000000"
1013 : "0000000000000000000000000000000000000",
1014 : buffer));
1015 5 : }
1016 :
1017 :
1018 25880 : TEST(DivideModuloIntBignum) {
1019 : char buffer[kBufferSize];
1020 5 : Bignum bignum;
1021 5 : Bignum other;
1022 5 : Bignum third;
1023 :
1024 5 : bignum.AssignUInt16(10);
1025 5 : other.AssignUInt16(2);
1026 10 : CHECK_EQ(5, bignum.DivideModuloIntBignum(other));
1027 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1028 5 : CHECK_EQ(0, strcmp("0", buffer));
1029 :
1030 5 : bignum.AssignUInt16(10);
1031 5 : bignum.ShiftLeft(500);
1032 5 : other.AssignUInt16(2);
1033 5 : other.ShiftLeft(500);
1034 10 : CHECK_EQ(5, bignum.DivideModuloIntBignum(other));
1035 5 : CHECK_EQ(0, strcmp("0", buffer));
1036 :
1037 5 : bignum.AssignUInt16(11);
1038 5 : other.AssignUInt16(2);
1039 10 : CHECK_EQ(5, bignum.DivideModuloIntBignum(other));
1040 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1041 5 : CHECK_EQ(0, strcmp("1", buffer));
1042 :
1043 5 : bignum.AssignUInt16(10);
1044 5 : bignum.ShiftLeft(500);
1045 5 : other.AssignUInt16(1);
1046 5 : bignum.AddBignum(other);
1047 5 : other.AssignUInt16(2);
1048 5 : other.ShiftLeft(500);
1049 10 : CHECK_EQ(5, bignum.DivideModuloIntBignum(other));
1050 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1051 5 : CHECK_EQ(0, strcmp("1", buffer));
1052 :
1053 5 : bignum.AssignUInt16(10);
1054 5 : bignum.ShiftLeft(500);
1055 5 : other.AssignBignum(bignum);
1056 5 : bignum.MultiplyByUInt32(0x1234);
1057 5 : third.AssignUInt16(0xFFF);
1058 5 : bignum.AddBignum(third);
1059 10 : CHECK_EQ(0x1234, bignum.DivideModuloIntBignum(other));
1060 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1061 5 : CHECK_EQ(0, strcmp("FFF", buffer));
1062 :
1063 5 : bignum.AssignUInt16(10);
1064 5 : AssignHexString(&other, "1234567890");
1065 10 : CHECK_EQ(0, bignum.DivideModuloIntBignum(other));
1066 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1067 5 : CHECK_EQ(0, strcmp("A", buffer));
1068 :
1069 5 : AssignHexString(&bignum, "12345678");
1070 5 : AssignHexString(&other, "3789012");
1071 10 : CHECK_EQ(5, bignum.DivideModuloIntBignum(other));
1072 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1073 5 : CHECK_EQ(0, strcmp("D9861E", buffer));
1074 :
1075 5 : AssignHexString(&bignum, "70000001");
1076 5 : AssignHexString(&other, "1FFFFFFF");
1077 10 : CHECK_EQ(3, bignum.DivideModuloIntBignum(other));
1078 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1079 5 : CHECK_EQ(0, strcmp("10000004", buffer));
1080 :
1081 5 : AssignHexString(&bignum, "28000000");
1082 5 : AssignHexString(&other, "12A05F20");
1083 10 : CHECK_EQ(2, bignum.DivideModuloIntBignum(other));
1084 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1085 5 : CHECK_EQ(0, strcmp("2BF41C0", buffer));
1086 :
1087 5 : bignum.AssignUInt16(10);
1088 5 : bignum.ShiftLeft(500);
1089 5 : other.AssignBignum(bignum);
1090 5 : bignum.MultiplyByUInt32(0x1234);
1091 5 : third.AssignUInt16(0xFFF);
1092 5 : other.SubtractBignum(third);
1093 10 : CHECK_EQ(0x1234, bignum.DivideModuloIntBignum(other));
1094 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1095 5 : CHECK_EQ(0, strcmp("1232DCC", buffer));
1096 10 : CHECK_EQ(0, bignum.DivideModuloIntBignum(other));
1097 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1098 5 : CHECK_EQ(0, strcmp("1232DCC", buffer));
1099 5 : }
1100 :
1101 :
1102 25880 : TEST(Compare) {
1103 5 : Bignum bignum1;
1104 5 : Bignum bignum2;
1105 5 : bignum1.AssignUInt16(1);
1106 5 : bignum2.AssignUInt16(1);
1107 5 : CHECK_EQ(0, Bignum::Compare(bignum1, bignum2));
1108 5 : CHECK(Bignum::Equal(bignum1, bignum2));
1109 5 : CHECK(Bignum::LessEqual(bignum1, bignum2));
1110 5 : CHECK(!Bignum::Less(bignum1, bignum2));
1111 :
1112 5 : bignum1.AssignUInt16(0);
1113 5 : bignum2.AssignUInt16(1);
1114 5 : CHECK_EQ(-1, Bignum::Compare(bignum1, bignum2));
1115 5 : CHECK_EQ(+1, Bignum::Compare(bignum2, bignum1));
1116 5 : CHECK(!Bignum::Equal(bignum1, bignum2));
1117 5 : CHECK(!Bignum::Equal(bignum2, bignum1));
1118 5 : CHECK(Bignum::LessEqual(bignum1, bignum2));
1119 5 : CHECK(!Bignum::LessEqual(bignum2, bignum1));
1120 5 : CHECK(Bignum::Less(bignum1, bignum2));
1121 5 : CHECK(!Bignum::Less(bignum2, bignum1));
1122 :
1123 5 : AssignHexString(&bignum1, "1234567890ABCDEF12345");
1124 5 : AssignHexString(&bignum2, "1234567890ABCDEF12345");
1125 5 : CHECK_EQ(0, Bignum::Compare(bignum1, bignum2));
1126 :
1127 5 : AssignHexString(&bignum1, "1234567890ABCDEF12345");
1128 5 : AssignHexString(&bignum2, "1234567890ABCDEF12346");
1129 5 : CHECK_EQ(-1, Bignum::Compare(bignum1, bignum2));
1130 5 : CHECK_EQ(+1, Bignum::Compare(bignum2, bignum1));
1131 :
1132 5 : AssignHexString(&bignum1, "1234567890ABCDEF12345");
1133 5 : bignum1.ShiftLeft(500);
1134 5 : AssignHexString(&bignum2, "1234567890ABCDEF12345");
1135 5 : bignum2.ShiftLeft(500);
1136 5 : CHECK_EQ(0, Bignum::Compare(bignum1, bignum2));
1137 :
1138 5 : AssignHexString(&bignum1, "1234567890ABCDEF12345");
1139 5 : bignum1.ShiftLeft(500);
1140 5 : AssignHexString(&bignum2, "1234567890ABCDEF12346");
1141 5 : bignum2.ShiftLeft(500);
1142 5 : CHECK_EQ(-1, Bignum::Compare(bignum1, bignum2));
1143 5 : CHECK_EQ(+1, Bignum::Compare(bignum2, bignum1));
1144 :
1145 5 : bignum1.AssignUInt16(1);
1146 5 : bignum1.ShiftLeft(64);
1147 5 : AssignHexString(&bignum2, "10000000000000000");
1148 5 : CHECK_EQ(0, Bignum::Compare(bignum1, bignum2));
1149 5 : CHECK_EQ(0, Bignum::Compare(bignum2, bignum1));
1150 :
1151 5 : bignum1.AssignUInt16(1);
1152 5 : bignum1.ShiftLeft(64);
1153 5 : AssignHexString(&bignum2, "10000000000000001");
1154 5 : CHECK_EQ(-1, Bignum::Compare(bignum1, bignum2));
1155 5 : CHECK_EQ(+1, Bignum::Compare(bignum2, bignum1));
1156 :
1157 5 : bignum1.AssignUInt16(1);
1158 5 : bignum1.ShiftLeft(96);
1159 5 : AssignHexString(&bignum2, "10000000000000001");
1160 5 : bignum2.ShiftLeft(32);
1161 5 : CHECK_EQ(-1, Bignum::Compare(bignum1, bignum2));
1162 5 : CHECK_EQ(+1, Bignum::Compare(bignum2, bignum1));
1163 :
1164 5 : AssignHexString(&bignum1, "FFFFFFFFFFFFFFFF");
1165 5 : bignum2.AssignUInt16(1);
1166 5 : bignum2.ShiftLeft(64);
1167 5 : CHECK_EQ(-1, Bignum::Compare(bignum1, bignum2));
1168 5 : CHECK_EQ(+1, Bignum::Compare(bignum2, bignum1));
1169 :
1170 5 : AssignHexString(&bignum1, "FFFFFFFFFFFFFFFF");
1171 5 : bignum1.ShiftLeft(32);
1172 5 : bignum2.AssignUInt16(1);
1173 5 : bignum2.ShiftLeft(96);
1174 5 : CHECK_EQ(-1, Bignum::Compare(bignum1, bignum2));
1175 5 : CHECK_EQ(+1, Bignum::Compare(bignum2, bignum1));
1176 :
1177 5 : AssignHexString(&bignum1, "FFFFFFFFFFFFFFFF");
1178 5 : bignum1.ShiftLeft(32);
1179 5 : bignum2.AssignUInt16(1);
1180 5 : bignum2.ShiftLeft(95);
1181 5 : CHECK_EQ(+1, Bignum::Compare(bignum1, bignum2));
1182 5 : CHECK_EQ(-1, Bignum::Compare(bignum2, bignum1));
1183 :
1184 5 : AssignHexString(&bignum1, "FFFFFFFFFFFFFFFF");
1185 5 : bignum1.ShiftLeft(32);
1186 5 : bignum2.AssignUInt16(1);
1187 5 : bignum2.ShiftLeft(100);
1188 5 : CHECK_EQ(-1, Bignum::Compare(bignum1, bignum2));
1189 5 : CHECK_EQ(+1, Bignum::Compare(bignum2, bignum1));
1190 :
1191 5 : AssignHexString(&bignum1, "100000000000000");
1192 5 : bignum2.AssignUInt16(1);
1193 5 : bignum2.ShiftLeft(14*4);
1194 5 : CHECK_EQ(0, Bignum::Compare(bignum1, bignum2));
1195 5 : CHECK_EQ(0, Bignum::Compare(bignum2, bignum1));
1196 :
1197 5 : AssignHexString(&bignum1, "100000000000001");
1198 5 : bignum2.AssignUInt16(1);
1199 5 : bignum2.ShiftLeft(14*4);
1200 5 : CHECK_EQ(+1, Bignum::Compare(bignum1, bignum2));
1201 5 : CHECK_EQ(-1, Bignum::Compare(bignum2, bignum1));
1202 :
1203 5 : AssignHexString(&bignum1, "200000000000000");
1204 5 : bignum2.AssignUInt16(3);
1205 5 : bignum2.ShiftLeft(14*4);
1206 5 : CHECK_EQ(-1, Bignum::Compare(bignum1, bignum2));
1207 5 : CHECK_EQ(+1, Bignum::Compare(bignum2, bignum1));
1208 5 : }
1209 :
1210 :
1211 25880 : TEST(PlusCompare) {
1212 5 : Bignum a;
1213 5 : Bignum b;
1214 5 : Bignum c;
1215 5 : a.AssignUInt16(1);
1216 5 : b.AssignUInt16(0);
1217 5 : c.AssignUInt16(1);
1218 5 : CHECK_EQ(0, Bignum::PlusCompare(a, b, c));
1219 5 : CHECK(Bignum::PlusEqual(a, b, c));
1220 5 : CHECK(Bignum::PlusLessEqual(a, b, c));
1221 5 : CHECK(!Bignum::PlusLess(a, b, c));
1222 :
1223 5 : a.AssignUInt16(0);
1224 5 : b.AssignUInt16(0);
1225 5 : c.AssignUInt16(1);
1226 5 : CHECK_EQ(-1, Bignum::PlusCompare(a, b, c));
1227 5 : CHECK_EQ(+1, Bignum::PlusCompare(c, b, a));
1228 5 : CHECK(!Bignum::PlusEqual(a, b, c));
1229 5 : CHECK(!Bignum::PlusEqual(c, b, a));
1230 5 : CHECK(Bignum::PlusLessEqual(a, b, c));
1231 5 : CHECK(!Bignum::PlusLessEqual(c, b, a));
1232 5 : CHECK(Bignum::PlusLess(a, b, c));
1233 5 : CHECK(!Bignum::PlusLess(c, b, a));
1234 :
1235 5 : AssignHexString(&a, "1234567890ABCDEF12345");
1236 5 : b.AssignUInt16(1);
1237 5 : AssignHexString(&c, "1234567890ABCDEF12345");
1238 5 : CHECK_EQ(+1, Bignum::PlusCompare(a, b, c));
1239 :
1240 5 : AssignHexString(&a, "1234567890ABCDEF12344");
1241 5 : b.AssignUInt16(1);
1242 5 : AssignHexString(&c, "1234567890ABCDEF12345");
1243 5 : CHECK_EQ(0, Bignum::PlusCompare(a, b, c));
1244 :
1245 5 : AssignHexString(&a, "1234567890");
1246 5 : a.ShiftLeft(11*4);
1247 5 : AssignHexString(&b, "ABCDEF12345");
1248 5 : AssignHexString(&c, "1234567890ABCDEF12345");
1249 5 : CHECK_EQ(0, Bignum::PlusCompare(a, b, c));
1250 :
1251 5 : AssignHexString(&a, "1234567890");
1252 5 : a.ShiftLeft(11*4);
1253 5 : AssignHexString(&b, "ABCDEF12344");
1254 5 : AssignHexString(&c, "1234567890ABCDEF12345");
1255 5 : CHECK_EQ(-1, Bignum::PlusCompare(a, b, c));
1256 :
1257 5 : AssignHexString(&a, "1234567890");
1258 5 : a.ShiftLeft(11*4);
1259 5 : AssignHexString(&b, "ABCDEF12346");
1260 5 : AssignHexString(&c, "1234567890ABCDEF12345");
1261 5 : CHECK_EQ(1, Bignum::PlusCompare(a, b, c));
1262 :
1263 5 : AssignHexString(&a, "1234567891");
1264 5 : a.ShiftLeft(11*4);
1265 5 : AssignHexString(&b, "ABCDEF12345");
1266 5 : AssignHexString(&c, "1234567890ABCDEF12345");
1267 5 : CHECK_EQ(1, Bignum::PlusCompare(a, b, c));
1268 :
1269 5 : AssignHexString(&a, "1234567889");
1270 5 : a.ShiftLeft(11*4);
1271 5 : AssignHexString(&b, "ABCDEF12345");
1272 5 : AssignHexString(&c, "1234567890ABCDEF12345");
1273 5 : CHECK_EQ(-1, Bignum::PlusCompare(a, b, c));
1274 :
1275 5 : AssignHexString(&a, "1234567890");
1276 5 : a.ShiftLeft(11*4 + 32);
1277 5 : AssignHexString(&b, "ABCDEF12345");
1278 5 : b.ShiftLeft(32);
1279 5 : AssignHexString(&c, "1234567890ABCDEF12345");
1280 5 : c.ShiftLeft(32);
1281 5 : CHECK_EQ(0, Bignum::PlusCompare(a, b, c));
1282 :
1283 5 : AssignHexString(&a, "1234567890");
1284 5 : a.ShiftLeft(11*4 + 32);
1285 5 : AssignHexString(&b, "ABCDEF12344");
1286 5 : b.ShiftLeft(32);
1287 5 : AssignHexString(&c, "1234567890ABCDEF12345");
1288 5 : c.ShiftLeft(32);
1289 5 : CHECK_EQ(-1, Bignum::PlusCompare(a, b, c));
1290 :
1291 5 : AssignHexString(&a, "1234567890");
1292 5 : a.ShiftLeft(11*4 + 32);
1293 5 : AssignHexString(&b, "ABCDEF12346");
1294 5 : b.ShiftLeft(32);
1295 5 : AssignHexString(&c, "1234567890ABCDEF12345");
1296 5 : c.ShiftLeft(32);
1297 5 : CHECK_EQ(1, Bignum::PlusCompare(a, b, c));
1298 :
1299 5 : AssignHexString(&a, "1234567891");
1300 5 : a.ShiftLeft(11*4 + 32);
1301 5 : AssignHexString(&b, "ABCDEF12345");
1302 5 : b.ShiftLeft(32);
1303 5 : AssignHexString(&c, "1234567890ABCDEF12345");
1304 5 : c.ShiftLeft(32);
1305 5 : CHECK_EQ(1, Bignum::PlusCompare(a, b, c));
1306 :
1307 5 : AssignHexString(&a, "1234567889");
1308 5 : a.ShiftLeft(11*4 + 32);
1309 5 : AssignHexString(&b, "ABCDEF12345");
1310 5 : b.ShiftLeft(32);
1311 5 : AssignHexString(&c, "1234567890ABCDEF12345");
1312 5 : c.ShiftLeft(32);
1313 5 : CHECK_EQ(-1, Bignum::PlusCompare(a, b, c));
1314 :
1315 5 : AssignHexString(&a, "1234567890");
1316 5 : a.ShiftLeft(11*4 + 32);
1317 5 : AssignHexString(&b, "ABCDEF12345");
1318 5 : b.ShiftLeft(32);
1319 5 : AssignHexString(&c, "1234567890ABCDEF1234500000000");
1320 5 : CHECK_EQ(0, Bignum::PlusCompare(a, b, c));
1321 :
1322 5 : AssignHexString(&a, "1234567890");
1323 5 : a.ShiftLeft(11*4 + 32);
1324 5 : AssignHexString(&b, "ABCDEF12344");
1325 5 : b.ShiftLeft(32);
1326 5 : AssignHexString(&c, "1234567890ABCDEF1234500000000");
1327 5 : CHECK_EQ(-1, Bignum::PlusCompare(a, b, c));
1328 :
1329 5 : AssignHexString(&a, "1234567890");
1330 5 : a.ShiftLeft(11*4 + 32);
1331 5 : AssignHexString(&b, "ABCDEF12346");
1332 5 : b.ShiftLeft(32);
1333 5 : AssignHexString(&c, "1234567890ABCDEF1234500000000");
1334 5 : CHECK_EQ(1, Bignum::PlusCompare(a, b, c));
1335 :
1336 5 : AssignHexString(&a, "1234567891");
1337 5 : a.ShiftLeft(11*4 + 32);
1338 5 : AssignHexString(&b, "ABCDEF12345");
1339 5 : b.ShiftLeft(32);
1340 5 : AssignHexString(&c, "1234567890ABCDEF1234500000000");
1341 5 : CHECK_EQ(1, Bignum::PlusCompare(a, b, c));
1342 :
1343 5 : AssignHexString(&a, "1234567889");
1344 5 : a.ShiftLeft(11*4 + 32);
1345 5 : AssignHexString(&b, "ABCDEF12345");
1346 5 : b.ShiftLeft(32);
1347 5 : AssignHexString(&c, "1234567890ABCDEF1234500000000");
1348 5 : CHECK_EQ(-1, Bignum::PlusCompare(a, b, c));
1349 :
1350 5 : AssignHexString(&a, "1234567890");
1351 5 : a.ShiftLeft(11*4 + 32);
1352 5 : AssignHexString(&b, "ABCDEF12345");
1353 5 : AssignHexString(&c, "123456789000000000ABCDEF12345");
1354 5 : CHECK_EQ(0, Bignum::PlusCompare(a, b, c));
1355 :
1356 5 : AssignHexString(&a, "1234567890");
1357 5 : a.ShiftLeft(11*4 + 32);
1358 5 : AssignHexString(&b, "ABCDEF12346");
1359 5 : AssignHexString(&c, "123456789000000000ABCDEF12345");
1360 5 : CHECK_EQ(1, Bignum::PlusCompare(a, b, c));
1361 :
1362 5 : AssignHexString(&a, "1234567890");
1363 5 : a.ShiftLeft(11*4 + 32);
1364 5 : AssignHexString(&b, "ABCDEF12344");
1365 5 : AssignHexString(&c, "123456789000000000ABCDEF12345");
1366 5 : CHECK_EQ(-1, Bignum::PlusCompare(a, b, c));
1367 :
1368 5 : AssignHexString(&a, "1234567890");
1369 5 : a.ShiftLeft(11*4 + 32);
1370 5 : AssignHexString(&b, "ABCDEF12345");
1371 5 : b.ShiftLeft(16);
1372 5 : AssignHexString(&c, "12345678900000ABCDEF123450000");
1373 5 : CHECK_EQ(0, Bignum::PlusCompare(a, b, c));
1374 :
1375 5 : AssignHexString(&a, "1234567890");
1376 5 : a.ShiftLeft(11*4 + 32);
1377 5 : AssignHexString(&b, "ABCDEF12344");
1378 5 : b.ShiftLeft(16);
1379 5 : AssignHexString(&c, "12345678900000ABCDEF123450000");
1380 5 : CHECK_EQ(-1, Bignum::PlusCompare(a, b, c));
1381 :
1382 5 : AssignHexString(&a, "1234567890");
1383 5 : a.ShiftLeft(11*4 + 32);
1384 5 : AssignHexString(&b, "ABCDEF12345");
1385 5 : b.ShiftLeft(16);
1386 5 : AssignHexString(&c, "12345678900000ABCDEF123450001");
1387 5 : CHECK_EQ(-1, Bignum::PlusCompare(a, b, c));
1388 :
1389 5 : AssignHexString(&a, "1234567890");
1390 5 : a.ShiftLeft(11*4 + 32);
1391 5 : AssignHexString(&b, "ABCDEF12346");
1392 5 : b.ShiftLeft(16);
1393 5 : AssignHexString(&c, "12345678900000ABCDEF123450000");
1394 5 : CHECK_EQ(+1, Bignum::PlusCompare(a, b, c));
1395 5 : }
1396 :
1397 :
1398 25880 : TEST(Square) {
1399 5 : Bignum bignum;
1400 : char buffer[kBufferSize];
1401 :
1402 5 : bignum.AssignUInt16(1);
1403 5 : bignum.Square();
1404 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1405 5 : CHECK_EQ(0, strcmp("1", buffer));
1406 :
1407 5 : bignum.AssignUInt16(2);
1408 5 : bignum.Square();
1409 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1410 5 : CHECK_EQ(0, strcmp("4", buffer));
1411 :
1412 5 : bignum.AssignUInt16(10);
1413 5 : bignum.Square();
1414 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1415 5 : CHECK_EQ(0, strcmp("64", buffer));
1416 :
1417 5 : AssignHexString(&bignum, "FFFFFFF");
1418 5 : bignum.Square();
1419 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1420 5 : CHECK_EQ(0, strcmp("FFFFFFE0000001", buffer));
1421 :
1422 5 : AssignHexString(&bignum, "FFFFFFFFFFFFFF");
1423 5 : bignum.Square();
1424 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1425 5 : CHECK_EQ(0, strcmp("FFFFFFFFFFFFFE00000000000001", buffer));
1426 5 : }
1427 :
1428 :
1429 25880 : TEST(AssignPowerUInt16) {
1430 5 : Bignum bignum;
1431 : char buffer[kBufferSize];
1432 :
1433 5 : bignum.AssignPowerUInt16(1, 0);
1434 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1435 5 : CHECK_EQ(0, strcmp("1", buffer));
1436 :
1437 5 : bignum.AssignPowerUInt16(1, 1);
1438 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1439 5 : CHECK_EQ(0, strcmp("1", buffer));
1440 :
1441 5 : bignum.AssignPowerUInt16(1, 2);
1442 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1443 5 : CHECK_EQ(0, strcmp("1", buffer));
1444 :
1445 5 : bignum.AssignPowerUInt16(2, 0);
1446 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1447 5 : CHECK_EQ(0, strcmp("1", buffer));
1448 :
1449 5 : bignum.AssignPowerUInt16(2, 1);
1450 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1451 5 : CHECK_EQ(0, strcmp("2", buffer));
1452 :
1453 5 : bignum.AssignPowerUInt16(2, 2);
1454 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1455 5 : CHECK_EQ(0, strcmp("4", buffer));
1456 :
1457 5 : bignum.AssignPowerUInt16(16, 1);
1458 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1459 5 : CHECK_EQ(0, strcmp("10", buffer));
1460 :
1461 5 : bignum.AssignPowerUInt16(16, 2);
1462 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1463 5 : CHECK_EQ(0, strcmp("100", buffer));
1464 :
1465 5 : bignum.AssignPowerUInt16(16, 5);
1466 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1467 5 : CHECK_EQ(0, strcmp("100000", buffer));
1468 :
1469 5 : bignum.AssignPowerUInt16(16, 8);
1470 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1471 5 : CHECK_EQ(0, strcmp("100000000", buffer));
1472 :
1473 5 : bignum.AssignPowerUInt16(16, 16);
1474 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1475 5 : CHECK_EQ(0, strcmp("10000000000000000", buffer));
1476 :
1477 5 : bignum.AssignPowerUInt16(16, 30);
1478 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1479 5 : CHECK_EQ(0, strcmp("1000000000000000000000000000000", buffer));
1480 :
1481 5 : bignum.AssignPowerUInt16(10, 0);
1482 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1483 5 : CHECK_EQ(0, strcmp("1", buffer));
1484 :
1485 5 : bignum.AssignPowerUInt16(10, 1);
1486 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1487 5 : CHECK_EQ(0, strcmp("A", buffer));
1488 :
1489 5 : bignum.AssignPowerUInt16(10, 2);
1490 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1491 5 : CHECK_EQ(0, strcmp("64", buffer));
1492 :
1493 5 : bignum.AssignPowerUInt16(10, 5);
1494 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1495 5 : CHECK_EQ(0, strcmp("186A0", buffer));
1496 :
1497 5 : bignum.AssignPowerUInt16(10, 8);
1498 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1499 5 : CHECK_EQ(0, strcmp("5F5E100", buffer));
1500 :
1501 5 : bignum.AssignPowerUInt16(10, 16);
1502 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1503 5 : CHECK_EQ(0, strcmp("2386F26FC10000", buffer));
1504 :
1505 5 : bignum.AssignPowerUInt16(10, 30);
1506 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1507 5 : CHECK_EQ(0, strcmp("C9F2C9CD04674EDEA40000000", buffer));
1508 :
1509 5 : bignum.AssignPowerUInt16(10, 31);
1510 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1511 5 : CHECK_EQ(0, strcmp("7E37BE2022C0914B2680000000", buffer));
1512 :
1513 5 : bignum.AssignPowerUInt16(2, 0);
1514 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1515 5 : CHECK_EQ(0, strcmp("1", buffer));
1516 :
1517 5 : bignum.AssignPowerUInt16(2, 100);
1518 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1519 5 : CHECK_EQ(0, strcmp("10000000000000000000000000", buffer));
1520 :
1521 5 : bignum.AssignPowerUInt16(17, 0);
1522 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1523 5 : CHECK_EQ(0, strcmp("1", buffer));
1524 :
1525 5 : bignum.AssignPowerUInt16(17, 99);
1526 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1527 5 : CHECK_EQ(0, strcmp(
1528 : "1942BB9853FAD924A3D4DD92B89B940E0207BEF05DB9C26BC1B757"
1529 : "80BE0C5A2C2990E02A681224F34ED68558CE4C6E33760931",
1530 : buffer));
1531 :
1532 5 : bignum.AssignPowerUInt16(0xFFFF, 99);
1533 5 : CHECK(bignum.ToHexString(buffer, kBufferSize));
1534 5 : CHECK_EQ(0, strcmp(
1535 : "FF9D12F09B886C54E77E7439C7D2DED2D34F669654C0C2B6B8C288250"
1536 : "5A2211D0E3DC9A61831349EAE674B11D56E3049D7BD79DAAD6C9FA2BA"
1537 : "528E3A794299F2EE9146A324DAFE3E88967A0358233B543E233E575B9"
1538 : "DD4E3AA7942146426C328FF55BFD5C45E0901B1629260AF9AE2F310C5"
1539 : "50959FAF305C30116D537D80CF6EBDBC15C5694062AF1AC3D956D0A41"
1540 : "B7E1B79FF11E21D83387A1CE1F5882B31E4B5D8DE415BDBE6854466DF"
1541 : "343362267A7E8833119D31D02E18DB5B0E8F6A64B0ED0D0062FFFF",
1542 : buffer));
1543 5 : }
1544 :
1545 : } // namespace test_bignum
1546 : } // namespace internal
1547 77625 : } // namespace v8
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