2 * Copyright (c) 2011, 2012, 2013 Nicira, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
25 #include "byte-order.h"
26 #include "command-line.h"
35 check_log_2_floor(uint32_t x, int n)
37 if (log_2_floor(x) != n) {
38 fprintf(stderr, "log_2_floor(%"PRIu32") is %d but should be %d\n",
39 x, log_2_floor(x), n);
45 test_log_2_floor(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
49 for (n = 0; n < 32; n++) {
50 /* Check minimum x such that f(x) == n. */
51 check_log_2_floor(1 << n, n);
53 /* Check maximum x such that f(x) == n. */
54 check_log_2_floor((1 << n) | ((1 << n) - 1), n);
56 /* Check a random value in the middle. */
57 check_log_2_floor((random_uint32() & ((1 << n) - 1)) | (1 << n), n);
60 /* log_2_floor(0) is undefined, so don't check it. */
64 check_ctz(uint32_t x, int n)
67 fprintf(stderr, "ctz(%"PRIu32") is %d but should be %d\n",
74 test_ctz(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
78 for (n = 0; n < 32; n++) {
79 /* Check minimum x such that f(x) == n. */
82 /* Check maximum x such that f(x) == n. */
83 check_ctz(UINT32_MAX << n, n);
85 /* Check a random value in the middle. */
86 check_ctz((random_uint32() | 1) << n, n);
93 /* Returns a random number in the range 'min'...'max' inclusive. */
95 random_in_range(uint32_t min, uint32_t max)
97 return min == max ? min : min + random_range(max - min + 1);
101 check_rup2(uint32_t x, int n)
103 uint32_t rup2 = ROUND_UP_POW2(x);
105 fprintf(stderr, "ROUND_UP_POW2(%#"PRIx32") is %#"PRIx32" "
106 "but should be %#"PRIx32"\n", x, rup2, n);
112 test_round_up_pow2(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
116 for (n = 0; n < 32; n++) {
117 /* Min, max value for which ROUND_UP_POW2 should yield (1 << n). */
118 uint32_t min = ((1u << n) >> 1) + 1;
119 uint32_t max = 1u << n;
121 check_rup2(min, 1u << n);
122 check_rup2(max, 1u << n);
123 check_rup2(random_in_range(min, max), 1u << n);
129 check_rdp2(uint32_t x, int n)
131 uint32_t rdp2 = ROUND_DOWN_POW2(x);
133 fprintf(stderr, "ROUND_DOWN_POW2(%#"PRIx32") is %#"PRIx32" "
134 "but should be %#"PRIx32"\n", x, rdp2, n);
140 test_round_down_pow2(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
144 for (n = 0; n < 32; n++) {
145 /* Min, max value for which ROUND_DOWN_POW2 should yield (1 << n). */
146 uint32_t min = 1u << n;
147 uint32_t max = ((1u << n) << 1) - 1;
149 check_rdp2(min, 1u << n);
150 check_rdp2(max, 1u << n);
151 check_rdp2(random_in_range(min, max), 1u << n);
157 shuffle(unsigned int *p, size_t n)
159 for (; n > 1; n--, p++) {
160 unsigned int *q = &p[random_range(n)];
161 unsigned int tmp = *p;
168 check_popcount(uint32_t x, int n)
170 if (popcount(x) != n) {
171 fprintf(stderr, "popcount(%#"PRIx32") is %d but should be %d\n",
178 test_popcount(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
180 unsigned int bits[32];
183 for (i = 0; i < ARRAY_SIZE(bits); i++) {
187 check_popcount(0, 0);
189 for (i = 0; i < 1000; i++) {
193 shuffle(bits, ARRAY_SIZE(bits));
194 for (j = 0; j < 32; j++) {
196 check_popcount(x, j + 1);
198 assert(x == UINT32_MAX);
200 shuffle(bits, ARRAY_SIZE(bits));
201 for (j = 31; j >= 0; j--) {
203 check_popcount(x, j);
209 /* Returns the sum of the squares of the first 'n' positive integers. */
211 sum_of_squares(int n)
213 return n * (n + 1) * (2 * n + 1) / 6;
217 test_bitwise_copy(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
219 unsigned int n_loops;
225 for (n_bits = 0; n_bits <= 64; n_bits++) {
226 for (src_ofs = 0; src_ofs < 64 - n_bits; src_ofs++) {
227 for (dst_ofs = 0; dst_ofs < 64 - n_bits; dst_ofs++) {
228 ovs_be64 src = htonll(random_uint64());
229 ovs_be64 dst = htonll(random_uint64());
230 ovs_be64 orig_dst = dst;
236 uint64_t mask = (UINT64_C(1) << n_bits) - 1;
237 expect = orig_dst & ~htonll(mask << dst_ofs);
238 expect |= htonll(((ntohll(src) >> src_ofs) & mask)
242 bitwise_copy(&src, sizeof src, src_ofs,
243 &dst, sizeof dst, dst_ofs,
246 fprintf(stderr,"copy_bits(0x%016"PRIx64",8,%d, "
247 "0x%016"PRIx64",8,%d, %d) yielded 0x%016"PRIx64" "
248 "instead of the expected 0x%016"PRIx64"\n",
249 ntohll(src), src_ofs,
250 ntohll(orig_dst), dst_ofs,
252 ntohll(dst), ntohll(expect));
261 if (n_loops != sum_of_squares(64)) {
267 test_bitwise_zero(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
269 unsigned int n_loops;
274 for (n_bits = 0; n_bits <= 64; n_bits++) {
275 for (dst_ofs = 0; dst_ofs < 64 - n_bits; dst_ofs++) {
276 ovs_be64 dst = htonll(random_uint64());
277 ovs_be64 orig_dst = dst;
283 uint64_t mask = (UINT64_C(1) << n_bits) - 1;
284 expect = orig_dst & ~htonll(mask << dst_ofs);
287 bitwise_zero(&dst, sizeof dst, dst_ofs, n_bits);
289 fprintf(stderr,"bitwise_zero(0x%016"PRIx64",8,%d, %d) "
290 "yielded 0x%016"PRIx64" "
291 "instead of the expected 0x%016"PRIx64"\n",
292 ntohll(orig_dst), dst_ofs,
294 ntohll(dst), ntohll(expect));
302 if (n_loops != 64 * (64 + 1) / 2) {
308 test_bitwise_one(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
310 unsigned int n_loops;
315 for (n_bits = 0; n_bits <= 64; n_bits++) {
316 for (dst_ofs = 0; dst_ofs < 64 - n_bits; dst_ofs++) {
317 ovs_be64 dst = htonll(random_uint64());
318 ovs_be64 orig_dst = dst;
322 expect = OVS_BE64_MAX;
324 uint64_t mask = (UINT64_C(1) << n_bits) - 1;
325 expect = orig_dst | htonll(mask << dst_ofs);
328 bitwise_one(&dst, sizeof dst, dst_ofs, n_bits);
330 fprintf(stderr,"bitwise_one(0x%016"PRIx64",8,%d, %d) "
331 "yielded 0x%016"PRIx64" "
332 "instead of the expected 0x%016"PRIx64"\n",
333 ntohll(orig_dst), dst_ofs,
335 ntohll(dst), ntohll(expect));
343 if (n_loops != 64 * (64 + 1) / 2) {
349 test_bitwise_is_all_zeros(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
353 for (n_loops = 0; n_loops < 100; n_loops++) {
354 ovs_be64 x = htonll(0);
357 for (i = 0; i < 64; i++) {
361 /* Change a random 0-bit into a 1-bit. */
363 bit = htonll(UINT64_C(1) << (random_range(64)));
367 for (ofs = 0; ofs < 64; ofs++) {
368 for (n = 0; n <= 64 - ofs; n++) {
374 : !(x & htonll(((UINT64_C(1) << n) - 1)
376 answer = bitwise_is_all_zeros(&x, sizeof x, ofs, n);
377 if (expect != answer) {
379 "bitwise_is_all_zeros(0x%016"PRIx64",8,%d,%d "
380 "returned %s instead of %s\n",
382 answer ? "true" : "false",
383 expect ? "true" : "false");
393 test_follow_symlinks(int argc, char *argv[])
397 for (i = 1; i < argc; i++) {
398 char *target = follow_symlinks(argv[i]);
405 test_assert(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
411 test_ovs_scan(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
413 char str[16], str2[16], str3[16];
427 ovs_assert(ovs_scan("", ""));
428 ovs_assert(ovs_scan("", " "));
429 ovs_assert(ovs_scan(" ", " "));
430 ovs_assert(ovs_scan(" ", " "));
431 ovs_assert(ovs_scan(" \t ", " "));
433 ovs_assert(ovs_scan("xyzzy", "xyzzy"));
434 ovs_assert(ovs_scan("xy%zzy", "xy%%zzy"));
435 ovs_assert(!ovs_scan(" xy%zzy", "xy%%zzy"));
436 ovs_assert(ovs_scan(" xy%\tzzy", " xy%% zzy"));
438 ovs_assert(ovs_scan("123", "%d", &i));
439 ovs_assert(i == 123);
440 ovs_assert(ovs_scan("0", "%d", &i));
442 ovs_assert(!ovs_scan("123", "%d%d", &i, &i2));
443 ovs_assert(ovs_scan("+123", "%d", &i));
444 ovs_assert(i == 123);
445 ovs_assert(ovs_scan("-123", "%d", &i));
446 ovs_assert(i == -123);
447 ovs_assert(ovs_scan("0123", "%d", &i));
448 ovs_assert(i == 123);
449 ovs_assert(ovs_scan(" 123", "%d", &i));
450 ovs_assert(i == 123);
451 ovs_assert(ovs_scan("0x123", "%d", &i));
453 ovs_assert(ovs_scan("123", "%2d %d", &i, &i2));
456 ovs_assert(ovs_scan("+123", "%2d %d", &i, &i2));
458 ovs_assert(i2 == 23);
459 ovs_assert(ovs_scan("-123", "%2d %d", &i, &i2));
461 ovs_assert(i2 == 23);
462 ovs_assert(ovs_scan("0123", "%2d %d", &i, &i2));
464 ovs_assert(i2 == 23);
465 ovs_assert(ovs_scan("123", "%*2d %d", &i));
467 ovs_assert(ovs_scan("+123", "%2d %*d", &i));
469 ovs_assert(i2 == 23);
470 ovs_assert(ovs_scan("-123", "%*2d %*d"));
472 ovs_assert(ovs_scan("123", "%u", &i));
473 ovs_assert(i == 123);
474 ovs_assert(ovs_scan("0", "%u", &i));
476 ovs_assert(!ovs_scan("123", "%u%u", &i, &i2));
477 ovs_assert(ovs_scan("+123", "%u", &i));
478 ovs_assert(i == 123);
479 ovs_assert(ovs_scan("-123", "%u", &i));
480 ovs_assert(i == -123);
481 ovs_assert(ovs_scan("0123", "%u", &i));
482 ovs_assert(i == 123);
483 ovs_assert(ovs_scan(" 123", "%u", &i));
484 ovs_assert(i == 123);
485 ovs_assert(ovs_scan("0x123", "%u", &i));
487 ovs_assert(ovs_scan("123", "%2u %u", &i, &i2));
490 ovs_assert(ovs_scan("+123", "%2u %u", &i, &i2));
492 ovs_assert(i2 == 23);
493 ovs_assert(ovs_scan("-123", "%2u %u", &i, &i2));
495 ovs_assert(i2 == 23);
496 ovs_assert(ovs_scan("0123", "%2u %u", &i, &i2));
498 ovs_assert(i2 == 23);
499 ovs_assert(ovs_scan("123", "%*2u %u", &i));
501 ovs_assert(ovs_scan("+123", "%2u %*u", &i));
503 ovs_assert(i2 == 23);
504 ovs_assert(ovs_scan("-123", "%*2u %*u"));
506 ovs_assert(ovs_scan("123", "%i", &i));
507 ovs_assert(i == 123);
508 ovs_assert(ovs_scan("0", "%i", &i));
510 ovs_assert(!ovs_scan("123", "%i%i", &i, &i2));
511 ovs_assert(ovs_scan("+123", "%i", &i));
512 ovs_assert(i == 123);
513 ovs_assert(ovs_scan("-123", "%i", &i));
514 ovs_assert(i == -123);
515 ovs_assert(ovs_scan("0123", "%i", &i));
516 ovs_assert(i == 0123);
517 ovs_assert(ovs_scan(" 123", "%i", &i));
518 ovs_assert(i == 123);
519 ovs_assert(ovs_scan("0x123", "%i", &i));
520 ovs_assert(i == 0x123);
521 ovs_assert(ovs_scan("123", "%2i %i", &i, &i2));
524 ovs_assert(ovs_scan("+123", "%2i %i", &i, &i2));
526 ovs_assert(i2 == 23);
527 ovs_assert(ovs_scan("-123", "%2i %i", &i, &i2));
529 ovs_assert(i2 == 23);
530 ovs_assert(ovs_scan("0123", "%2i %i", &i, &i2));
532 ovs_assert(i2 == 23);
533 ovs_assert(ovs_scan("123", "%*2i %i", &i));
535 ovs_assert(ovs_scan("+123", "%2i %*i", &i));
537 ovs_assert(i2 == 23);
538 ovs_assert(ovs_scan("-123", "%*2i %*i"));
540 ovs_assert(ovs_scan("123", "%o", &i));
541 ovs_assert(i == 0123);
542 ovs_assert(ovs_scan("0", "%o", &i));
544 ovs_assert(!ovs_scan("123", "%o%o", &i, &i2));
545 ovs_assert(ovs_scan("+123", "%o", &i));
546 ovs_assert(i == 0123);
547 ovs_assert(ovs_scan("-123", "%o", &i));
548 ovs_assert(i == -0123);
549 ovs_assert(ovs_scan("0123", "%o", &i));
550 ovs_assert(i == 0123);
551 ovs_assert(ovs_scan(" 123", "%o", &i));
552 ovs_assert(i == 0123);
553 ovs_assert(ovs_scan("0x123", "%o", &i));
555 ovs_assert(ovs_scan("123", "%2o %o", &i, &i2));
556 ovs_assert(i == 012);
558 ovs_assert(ovs_scan("+123", "%2o %o", &i, &i2));
560 ovs_assert(i2 == 023);
561 ovs_assert(ovs_scan("-123", "%2o %o", &i, &i2));
563 ovs_assert(i2 == 023);
564 ovs_assert(ovs_scan("0123", "%2o %o", &i, &i2));
566 ovs_assert(i2 == 023);
567 ovs_assert(ovs_scan("123", "%*2o %o", &i));
569 ovs_assert(ovs_scan("+123", "%2o %*o", &i));
571 ovs_assert(i2 == 023);
572 ovs_assert(ovs_scan("-123", "%*2o %*o"));
574 ovs_assert(ovs_scan("123", "%x", &i));
575 ovs_assert(i == 0x123);
576 ovs_assert(ovs_scan("0", "%x", &i));
578 ovs_assert(!ovs_scan("123", "%x%x", &i, &i2));
579 ovs_assert(ovs_scan("+123", "%x", &i));
580 ovs_assert(i == 0x123);
581 ovs_assert(ovs_scan("-123", "%x", &i));
582 ovs_assert(i == -0x123);
583 ovs_assert(ovs_scan("0123", "%x", &i));
584 ovs_assert(i == 0x123);
585 ovs_assert(ovs_scan(" 123", "%x", &i));
586 ovs_assert(i == 0x123);
587 ovs_assert(ovs_scan("0x123", "%x", &i));
588 ovs_assert(i == 0x123);
589 ovs_assert(ovs_scan("123", "%2x %x", &i, &i2));
590 ovs_assert(i == 0x12);
592 ovs_assert(ovs_scan("+123", "%2x %x", &i, &i2));
594 ovs_assert(i2 == 0x23);
595 ovs_assert(ovs_scan("-123", "%2x %x", &i, &i2));
597 ovs_assert(i2 == 0x23);
598 ovs_assert(ovs_scan("0123", "%2x %x", &i, &i2));
600 ovs_assert(i2 == 0x23);
601 ovs_assert(ovs_scan("123", "%*2x %x", &i));
603 ovs_assert(ovs_scan("+123", "%2x %*x", &i));
605 ovs_assert(i2 == 0x23);
606 ovs_assert(ovs_scan("-123", "%*2x %*x"));
608 ovs_assert(ovs_scan("123", "%hd", &s));
609 ovs_assert(s == 123);
610 ovs_assert(!ovs_scan("123", "%hd%hd", &s, &s2));
611 ovs_assert(ovs_scan("+123", "%hd", &s));
612 ovs_assert(s == 123);
613 ovs_assert(ovs_scan("-123", "%hd", &s));
614 ovs_assert(s == -123);
615 ovs_assert(ovs_scan("0123", "%hd", &s));
616 ovs_assert(s == 123);
617 ovs_assert(ovs_scan(" 123", "%hd", &s));
618 ovs_assert(s == 123);
619 ovs_assert(ovs_scan("0x123", "%hd", &s));
621 ovs_assert(ovs_scan("123", "%2hd %hd", &s, &s2));
624 ovs_assert(ovs_scan("+123", "%2hd %hd", &s, &s2));
626 ovs_assert(s2 == 23);
627 ovs_assert(ovs_scan("-123", "%2hd %hd", &s, &s2));
629 ovs_assert(s2 == 23);
630 ovs_assert(ovs_scan("0123", "%2hd %hd", &s, &s2));
632 ovs_assert(s2 == 23);
634 ovs_assert(ovs_scan("123", "%hhd", &c));
635 ovs_assert(c == 123);
636 ovs_assert(ovs_scan("0", "%hhd", &c));
638 ovs_assert(!ovs_scan("123", "%hhd%hhd", &c, &c2));
639 ovs_assert(ovs_scan("+123", "%hhd", &c));
640 ovs_assert(c == 123);
641 ovs_assert(ovs_scan("-123", "%hhd", &c));
642 ovs_assert(c == -123);
643 ovs_assert(ovs_scan("0123", "%hhd", &c));
644 ovs_assert(c == 123);
645 ovs_assert(ovs_scan(" 123", "%hhd", &c));
646 ovs_assert(c == 123);
647 ovs_assert(ovs_scan("0x123", "%hhd", &c));
649 ovs_assert(ovs_scan("123", "%2hhd %hhd", &c, &c2));
652 ovs_assert(ovs_scan("+123", "%2hhd %hhd", &c, &c2));
654 ovs_assert(c2 == 23);
655 ovs_assert(ovs_scan("-123", "%2hhd %hhd", &c, &c2));
657 ovs_assert(c2 == 23);
658 ovs_assert(ovs_scan("0123", "%2hhd %hhd", &c, &c2));
660 ovs_assert(c2 == 23);
662 ovs_assert(ovs_scan("123", "%ld", &l));
663 ovs_assert(l == 123);
664 ovs_assert(ovs_scan("0", "%ld", &l));
666 ovs_assert(!ovs_scan("123", "%ld%ld", &l, &l2));
667 ovs_assert(ovs_scan("+123", "%ld", &l));
668 ovs_assert(l == 123);
669 ovs_assert(ovs_scan("-123", "%ld", &l));
670 ovs_assert(l == -123);
671 ovs_assert(ovs_scan("0123", "%ld", &l));
672 ovs_assert(l == 123);
673 ovs_assert(ovs_scan(" 123", "%ld", &l));
674 ovs_assert(l == 123);
675 ovs_assert(ovs_scan("0x123", "%ld", &l));
677 ovs_assert(ovs_scan("123", "%2ld %ld", &l, &l2));
680 ovs_assert(ovs_scan("+123", "%2ld %ld", &l, &l2));
682 ovs_assert(l2 == 23);
683 ovs_assert(ovs_scan("-123", "%2ld %ld", &l, &l2));
685 ovs_assert(l2 == 23);
686 ovs_assert(ovs_scan("0123", "%2ld %ld", &l, &l2));
688 ovs_assert(l2 == 23);
690 ovs_assert(ovs_scan("123", "%lld", &ll));
691 ovs_assert(ll == 123);
692 ovs_assert(ovs_scan("0", "%lld", &ll));
694 ovs_assert(!ovs_scan("123", "%lld%lld", &ll, &ll2));
695 ovs_assert(ovs_scan("+123", "%lld", &ll));
696 ovs_assert(ll == 123);
697 ovs_assert(ovs_scan("-123", "%lld", &ll));
698 ovs_assert(ll == -123);
699 ovs_assert(ovs_scan("0123", "%lld", &ll));
700 ovs_assert(ll == 123);
701 ovs_assert(ovs_scan(" 123", "%lld", &ll));
702 ovs_assert(ll == 123);
703 ovs_assert(ovs_scan("0x123", "%lld", &ll));
705 ovs_assert(ovs_scan("123", "%2lld %lld", &ll, &ll2));
706 ovs_assert(ll == 12);
707 ovs_assert(ll2 == 3);
708 ovs_assert(ovs_scan("+123", "%2lld %lld", &ll, &ll2));
710 ovs_assert(ll2 == 23);
711 ovs_assert(ovs_scan("-123", "%2lld %lld", &ll, &ll2));
712 ovs_assert(ll == -1);
713 ovs_assert(ll2 == 23);
714 ovs_assert(ovs_scan("0123", "%2lld %lld", &ll, &ll2));
716 ovs_assert(ll2 == 23);
718 ovs_assert(ovs_scan("123", "%jd", &im));
719 ovs_assert(im == 123);
720 ovs_assert(ovs_scan("0", "%jd", &im));
722 ovs_assert(!ovs_scan("123", "%jd%jd", &im, &im2));
723 ovs_assert(ovs_scan("+123", "%jd", &im));
724 ovs_assert(im == 123);
725 ovs_assert(ovs_scan("-123", "%jd", &im));
726 ovs_assert(im == -123);
727 ovs_assert(ovs_scan("0123", "%jd", &im));
728 ovs_assert(im == 123);
729 ovs_assert(ovs_scan(" 123", "%jd", &im));
730 ovs_assert(im == 123);
731 ovs_assert(ovs_scan("0x123", "%jd", &im));
733 ovs_assert(ovs_scan("123", "%2jd %jd", &im, &im2));
734 ovs_assert(im == 12);
735 ovs_assert(im2 == 3);
736 ovs_assert(ovs_scan("+123", "%2jd %jd", &im, &im2));
738 ovs_assert(im2 == 23);
739 ovs_assert(ovs_scan("-123", "%2jd %jd", &im, &im2));
740 ovs_assert(im == -1);
741 ovs_assert(im2 == 23);
742 ovs_assert(ovs_scan("0123", "%2jd %jd", &im, &im2));
744 ovs_assert(im2 == 23);
746 ovs_assert(ovs_scan("123", "%td", &pd));
747 ovs_assert(pd == 123);
748 ovs_assert(ovs_scan("0", "%td", &pd));
750 ovs_assert(!ovs_scan("123", "%td%td", &pd, &pd2));
751 ovs_assert(ovs_scan("+123", "%td", &pd));
752 ovs_assert(pd == 123);
753 ovs_assert(ovs_scan("-123", "%td", &pd));
754 ovs_assert(pd == -123);
755 ovs_assert(ovs_scan("0123", "%td", &pd));
756 ovs_assert(pd == 123);
757 ovs_assert(ovs_scan(" 123", "%td", &pd));
758 ovs_assert(pd == 123);
759 ovs_assert(ovs_scan("0x123", "%td", &pd));
761 ovs_assert(ovs_scan("123", "%2td %td", &pd, &pd2));
762 ovs_assert(pd == 12);
763 ovs_assert(pd2 == 3);
764 ovs_assert(ovs_scan("+123", "%2td %td", &pd, &pd2));
766 ovs_assert(pd2 == 23);
767 ovs_assert(ovs_scan("-123", "%2td %td", &pd, &pd2));
768 ovs_assert(pd == -1);
769 ovs_assert(pd2 == 23);
770 ovs_assert(ovs_scan("0123", "%2td %td", &pd, &pd2));
772 ovs_assert(pd2 == 23);
774 ovs_assert(ovs_scan("123", "%zd", &sz));
775 ovs_assert(sz == 123);
776 ovs_assert(ovs_scan("0", "%zd", &sz));
778 ovs_assert(!ovs_scan("123", "%zd%zd", &sz, &sz2));
779 ovs_assert(ovs_scan("+123", "%zd", &sz));
780 ovs_assert(sz == 123);
781 ovs_assert(ovs_scan("-123", "%zd", &sz));
782 ovs_assert(sz == -123);
783 ovs_assert(ovs_scan("0123", "%zd", &sz));
784 ovs_assert(sz == 123);
785 ovs_assert(ovs_scan(" 123", "%zd", &sz));
786 ovs_assert(sz == 123);
787 ovs_assert(ovs_scan("0x123", "%zd", &sz));
789 ovs_assert(ovs_scan("123", "%2zd %zd", &sz, &sz2));
790 ovs_assert(sz == 12);
791 ovs_assert(sz2 == 3);
792 ovs_assert(ovs_scan("+123", "%2zd %zd", &sz, &sz2));
794 ovs_assert(sz2 == 23);
795 ovs_assert(ovs_scan("-123", "%2zd %zd", &sz, &sz2));
796 ovs_assert(sz == -1);
797 ovs_assert(sz2 == 23);
798 ovs_assert(ovs_scan("0123", "%2zd %zd", &sz, &sz2));
800 ovs_assert(sz2 == 23);
802 ovs_assert(ovs_scan("0.25", "%f", &f));
803 ovs_assert(f == 0.25);
804 ovs_assert(ovs_scan("1.0", "%f", &f));
805 ovs_assert(f == 1.0);
806 ovs_assert(ovs_scan("-5", "%f", &f));
807 ovs_assert(f == -5.0);
808 ovs_assert(ovs_scan("+6", "%f", &f));
809 ovs_assert(f == 6.0);
810 ovs_assert(ovs_scan("-1e5", "%f", &f));
811 ovs_assert(f == -1e5);
812 ovs_assert(ovs_scan("-.25", "%f", &f));
813 ovs_assert(f == -.25);
814 ovs_assert(ovs_scan("+123.e1", "%f", &f));
815 ovs_assert(f == 1230.0);
816 ovs_assert(ovs_scan("25e-2", "%f", &f));
817 ovs_assert(f == 0.25);
818 ovs_assert(ovs_scan("0.25", "%1f %f", &f, &f2));
820 ovs_assert(f2 == 0.25);
821 ovs_assert(ovs_scan("1.0", "%2f %f", &f, &f2));
822 ovs_assert(f == 1.0);
823 ovs_assert(f2 == 0.0);
824 ovs_assert(!ovs_scan("-5", "%1f", &f));
825 ovs_assert(!ovs_scan("+6", "%1f", &f));
826 ovs_assert(!ovs_scan("-1e5", "%2f %*f", &f));
828 ovs_assert(!ovs_scan("-.25", "%2f", &f));
829 ovs_assert(!ovs_scan("+123.e1", "%6f", &f));
830 ovs_assert(!ovs_scan("25e-2", "%4f", &f));
832 ovs_assert(ovs_scan("0.25", "%lf", &d));
833 ovs_assert(d == 0.25);
834 ovs_assert(ovs_scan("1.0", "%lf", &d));
835 ovs_assert(d == 1.0);
836 ovs_assert(ovs_scan("-5", "%lf", &d));
837 ovs_assert(d == -5.0);
838 ovs_assert(ovs_scan("+6", "%lf", &d));
839 ovs_assert(d == 6.0);
840 ovs_assert(ovs_scan("-1e5", "%lf", &d));
841 ovs_assert(d == -1e5);
842 ovs_assert(ovs_scan("-.25", "%lf", &d));
843 ovs_assert(d == -.25);
844 ovs_assert(ovs_scan("+123.e1", "%lf", &d));
845 ovs_assert(d == 1230.0);
846 ovs_assert(ovs_scan("25e-2", "%lf", &d));
847 ovs_assert(d == 0.25);
848 ovs_assert(ovs_scan("0.25", "%1lf %lf", &d, &d2));
850 ovs_assert(d2 == 0.25);
851 ovs_assert(ovs_scan("1.0", "%2lf %lf", &d, &d2));
852 ovs_assert(d == 1.0);
853 ovs_assert(d2 == 0.0);
854 ovs_assert(!ovs_scan("-5", "%1lf", &d));
855 ovs_assert(!ovs_scan("+6", "%1lf", &d));
856 ovs_assert(!ovs_scan("-1e5", "%2lf %*f", &d));
858 ovs_assert(!ovs_scan("-.25", "%2lf", &d));
859 ovs_assert(!ovs_scan("+123.e1", "%6lf", &d));
860 ovs_assert(!ovs_scan("25e-2", "%4lf", &d));
862 ovs_assert(ovs_scan("0.25", "%Lf", &ld));
863 ovs_assert(ld == 0.25);
864 ovs_assert(ovs_scan("1.0", "%Lf", &ld));
865 ovs_assert(ld == 1.0);
866 ovs_assert(ovs_scan("-5", "%Lf", &ld));
867 ovs_assert(ld == -5.0);
868 ovs_assert(ovs_scan("+6", "%Lf", &ld));
869 ovs_assert(ld == 6.0);
870 ovs_assert(ovs_scan("-1e5", "%Lf", &ld));
871 ovs_assert(ld == -1e5);
872 ovs_assert(ovs_scan("-.25", "%Lf", &ld));
873 ovs_assert(ld == -.25);
874 ovs_assert(ovs_scan("+123.e1", "%Lf", &ld));
875 ovs_assert(ld == 1230.0);
876 ovs_assert(ovs_scan("25e-2", "%Lf", &ld));
877 ovs_assert(ld == 0.25);
878 ovs_assert(ovs_scan("0.25", "%1Lf %Lf", &ld, &ld2));
880 ovs_assert(ld2 == 0.25);
881 ovs_assert(ovs_scan("1.0", "%2Lf %Lf", &ld, &ld2));
882 ovs_assert(ld == 1.0);
883 ovs_assert(ld2 == 0.0);
884 ovs_assert(!ovs_scan("-5", "%1Lf", &ld));
885 ovs_assert(!ovs_scan("+6", "%1Lf", &ld));
886 ovs_assert(!ovs_scan("-1e5", "%2Lf %*f", &ld));
887 ovs_assert(ld == -1);
888 ovs_assert(!ovs_scan("-.25", "%2Lf", &ld));
889 ovs_assert(!ovs_scan("+123.e1", "%6Lf", &ld));
890 ovs_assert(!ovs_scan("25e-2", "%4Lf", &ld));
892 ovs_assert(ovs_scan(" Hello,\tworld ", "%*s%n%*s%n", &n, &n2));
894 ovs_assert(n2 == 13);
895 ovs_assert(!ovs_scan(" Hello,\tworld ", "%*s%*s%*s"));
896 ovs_assert(ovs_scan(" Hello,\tworld ", "%6s%n%5s%n", str, &n, str2, &n2));
897 ovs_assert(!strcmp(str, "Hello,"));
899 ovs_assert(!strcmp(str2, "world"));
900 ovs_assert(n2 == 13);
901 ovs_assert(ovs_scan(" Hello,\tworld ", "%5s%5s%5s", str, str2, str3));
902 ovs_assert(!strcmp(str, "Hello"));
903 ovs_assert(!strcmp(str2, ","));
904 ovs_assert(!strcmp(str3, "world"));
905 ovs_assert(!ovs_scan(" ", "%*s"));
907 ovs_assert(ovs_scan(" Hello,\tworld ", "%*c%n%*c%n%c%n",
911 ovs_assert(c == 'e');
913 ovs_assert(ovs_scan(" Hello,\tworld ", "%*5c%5c", str));
914 ovs_assert(!memcmp(str, "o,\two", 5));
915 ovs_assert(!ovs_scan(" Hello,\tworld ", "%*15c"));
917 ovs_assert(ovs_scan("0x1234xyzzy", "%9[x0-9a-fA-F]%n", str, &n));
918 ovs_assert(!strcmp(str, "0x1234x"));
920 ovs_assert(ovs_scan("foo:bar=baz", "%5[^:=]%n:%5[^:=]%n=%5[^:=]%n",
921 str, &n, str2, &n2, str3, &n3));
922 ovs_assert(!strcmp(str, "foo"));
924 ovs_assert(!strcmp(str2, "bar"));
926 ovs_assert(!strcmp(str3, "baz"));
927 ovs_assert(n3 == 11);
928 ovs_assert(!ovs_scan(" ", "%*[0-9]"));
929 ovs_assert(ovs_scan("0x123a]4xyzzy-", "%[]x0-9a-fA-F]", str));
930 ovs_assert(!strcmp(str, "0x123a]4x"));
931 ovs_assert(ovs_scan("abc]xyz","%[^]xyz]", str));
932 ovs_assert(!strcmp(str, "abc"));
933 ovs_assert(!ovs_scan("0x123a]4xyzzy-", "%[x0-9]a-fA-F]", str));
934 ovs_assert(ovs_scan("0x12-3]xyz", "%[x0-9a-f-]", str));
935 ovs_assert(!strcmp(str, "0x12-3"));
936 ovs_assert(ovs_scan("0x12-3]xyz", "%[^a-f-]", str));
937 ovs_assert(!strcmp(str, "0x12"));
938 ovs_assert(sscanf("0x12-3]xyz", "%[^-a-f]", str));
939 ovs_assert(!strcmp(str, "0x12"));
942 static const struct command commands[] = {
943 {"ctz", 0, 0, test_ctz},
944 {"round_up_pow2", 0, 0, test_round_up_pow2},
945 {"round_down_pow2", 0, 0, test_round_down_pow2},
946 {"popcount", 0, 0, test_popcount},
947 {"log_2_floor", 0, 0, test_log_2_floor},
948 {"bitwise_copy", 0, 0, test_bitwise_copy},
949 {"bitwise_zero", 0, 0, test_bitwise_zero},
950 {"bitwise_one", 0, 0, test_bitwise_one},
951 {"bitwise_is_all_zeros", 0, 0, test_bitwise_is_all_zeros},
952 {"follow-symlinks", 1, INT_MAX, test_follow_symlinks},
953 {"assert", 0, 0, test_assert},
954 {"ovs_scan", 0, 0, test_ovs_scan},
959 parse_options(int argc, char *argv[])
964 static const struct option long_options[] = {
968 char *short_options = long_options_to_short_options(long_options);
971 int c = getopt_long(argc, argv, short_options, long_options, NULL);
990 main(int argc, char *argv[])
992 set_program_name(argv[0]);
993 parse_options(argc, argv);
994 run_command(argc - optind, argv + optind, commands);