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 check_ctz64(uint64_t x, int n)
77 fprintf(stderr, "ctz64(%"PRIu64") is %d but should be %d\n",
84 test_ctz(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
88 for (n = 0; n < 32; n++) {
89 /* Check minimum x such that f(x) == n. */
92 /* Check maximum x such that f(x) == n. */
93 check_ctz(UINT32_MAX << n, n);
95 /* Check a random value in the middle. */
96 check_ctz((random_uint32() | 1) << n, n);
100 for (n = 0; n < 64; n++) {
101 /* Check minimum x such that f(x) == n. */
102 check_ctz64(UINT64_C(1) << n, n);
104 /* Check maximum x such that f(x) == n. */
105 check_ctz64(UINT64_MAX << n, n);
107 /* Check a random value in the middle. */
108 check_ctz64((random_uint64() | UINT64_C(1)) << n, n);
116 /* Returns a random number in the range 'min'...'max' inclusive. */
118 random_in_range(uint32_t min, uint32_t max)
120 return min == max ? min : min + random_range(max - min + 1);
124 check_rup2(uint32_t x, int n)
126 uint32_t rup2 = ROUND_UP_POW2(x);
128 fprintf(stderr, "ROUND_UP_POW2(%#"PRIx32") is %#"PRIx32" "
129 "but should be %#"PRIx32"\n", x, rup2, n);
135 test_round_up_pow2(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
139 for (n = 0; n < 32; n++) {
140 /* Min, max value for which ROUND_UP_POW2 should yield (1 << n). */
141 uint32_t min = ((1u << n) >> 1) + 1;
142 uint32_t max = 1u << n;
144 check_rup2(min, 1u << n);
145 check_rup2(max, 1u << n);
146 check_rup2(random_in_range(min, max), 1u << n);
152 check_rdp2(uint32_t x, int n)
154 uint32_t rdp2 = ROUND_DOWN_POW2(x);
156 fprintf(stderr, "ROUND_DOWN_POW2(%#"PRIx32") is %#"PRIx32" "
157 "but should be %#"PRIx32"\n", x, rdp2, n);
163 test_round_down_pow2(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
167 for (n = 0; n < 32; n++) {
168 /* Min, max value for which ROUND_DOWN_POW2 should yield (1 << n). */
169 uint32_t min = 1u << n;
170 uint32_t max = ((1u << n) << 1) - 1;
172 check_rdp2(min, 1u << n);
173 check_rdp2(max, 1u << n);
174 check_rdp2(random_in_range(min, max), 1u << n);
180 shuffle(uint64_t *p, size_t n)
182 for (; n > 1; n--, p++) {
183 uint64_t *q = &p[random_range(n)];
191 check_popcount(uint32_t x, int n)
193 if (popcount(x) != n) {
194 fprintf(stderr, "popcount(%#"PRIx32") is %d but should be %d\n",
201 check_popcount64(uint64_t x, int n)
203 if (popcount64(x) != n) {
204 fprintf(stderr, "popcount64(%#"PRIx64") is %d but should be %d\n",
205 x, popcount64(x), n);
211 test_popcount(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
216 for (i = 0; i < ARRAY_SIZE(bits); i++) {
217 bits[i] = UINT64_C(1) << i;
220 check_popcount(0, 0);
221 check_popcount64(0, 0);
223 for (i = 0; i < 1000; i++) {
227 shuffle(bits, ARRAY_SIZE(bits)/2);
228 for (j = 0; j < 32; j++) {
230 check_popcount(x, j + 1);
232 assert(x == UINT32_MAX);
234 shuffle(bits, ARRAY_SIZE(bits)/2);
235 for (j = 31; j >= 0; j--) {
237 check_popcount(x, j);
242 for (i = 0; i < 1000; i++) {
246 shuffle(bits, ARRAY_SIZE(bits));
247 for (j = 0; j < 64; j++) {
249 check_popcount64(x, j + 1);
251 assert(x == UINT64_MAX);
253 shuffle(bits, ARRAY_SIZE(bits));
254 for (j = 63; j >= 0; j--) {
256 check_popcount64(x, j);
262 /* Returns the sum of the squares of the first 'n' positive integers. */
264 sum_of_squares(int n)
266 return n * (n + 1) * (2 * n + 1) / 6;
270 test_bitwise_copy(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
272 unsigned int n_loops;
278 for (n_bits = 0; n_bits <= 64; n_bits++) {
279 for (src_ofs = 0; src_ofs < 64 - n_bits; src_ofs++) {
280 for (dst_ofs = 0; dst_ofs < 64 - n_bits; dst_ofs++) {
281 ovs_be64 src = htonll(random_uint64());
282 ovs_be64 dst = htonll(random_uint64());
283 ovs_be64 orig_dst = dst;
289 uint64_t mask = (UINT64_C(1) << n_bits) - 1;
290 expect = orig_dst & ~htonll(mask << dst_ofs);
291 expect |= htonll(((ntohll(src) >> src_ofs) & mask)
295 bitwise_copy(&src, sizeof src, src_ofs,
296 &dst, sizeof dst, dst_ofs,
299 fprintf(stderr,"copy_bits(0x%016"PRIx64",8,%d, "
300 "0x%016"PRIx64",8,%d, %d) yielded 0x%016"PRIx64" "
301 "instead of the expected 0x%016"PRIx64"\n",
302 ntohll(src), src_ofs,
303 ntohll(orig_dst), dst_ofs,
305 ntohll(dst), ntohll(expect));
314 if (n_loops != sum_of_squares(64)) {
320 test_bitwise_zero(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
322 unsigned int n_loops;
327 for (n_bits = 0; n_bits <= 64; n_bits++) {
328 for (dst_ofs = 0; dst_ofs < 64 - n_bits; dst_ofs++) {
329 ovs_be64 dst = htonll(random_uint64());
330 ovs_be64 orig_dst = dst;
336 uint64_t mask = (UINT64_C(1) << n_bits) - 1;
337 expect = orig_dst & ~htonll(mask << dst_ofs);
340 bitwise_zero(&dst, sizeof dst, dst_ofs, n_bits);
342 fprintf(stderr,"bitwise_zero(0x%016"PRIx64",8,%d, %d) "
343 "yielded 0x%016"PRIx64" "
344 "instead of the expected 0x%016"PRIx64"\n",
345 ntohll(orig_dst), dst_ofs,
347 ntohll(dst), ntohll(expect));
355 if (n_loops != 64 * (64 + 1) / 2) {
361 test_bitwise_one(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
363 unsigned int n_loops;
368 for (n_bits = 0; n_bits <= 64; n_bits++) {
369 for (dst_ofs = 0; dst_ofs < 64 - n_bits; dst_ofs++) {
370 ovs_be64 dst = htonll(random_uint64());
371 ovs_be64 orig_dst = dst;
375 expect = OVS_BE64_MAX;
377 uint64_t mask = (UINT64_C(1) << n_bits) - 1;
378 expect = orig_dst | htonll(mask << dst_ofs);
381 bitwise_one(&dst, sizeof dst, dst_ofs, n_bits);
383 fprintf(stderr,"bitwise_one(0x%016"PRIx64",8,%d, %d) "
384 "yielded 0x%016"PRIx64" "
385 "instead of the expected 0x%016"PRIx64"\n",
386 ntohll(orig_dst), dst_ofs,
388 ntohll(dst), ntohll(expect));
396 if (n_loops != 64 * (64 + 1) / 2) {
402 test_bitwise_is_all_zeros(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
406 for (n_loops = 0; n_loops < 100; n_loops++) {
407 ovs_be64 x = htonll(0);
410 for (i = 0; i < 64; i++) {
414 /* Change a random 0-bit into a 1-bit. */
416 bit = htonll(UINT64_C(1) << (random_range(64)));
420 for (ofs = 0; ofs < 64; ofs++) {
421 for (n = 0; n <= 64 - ofs; n++) {
427 : !(x & htonll(((UINT64_C(1) << n) - 1)
429 answer = bitwise_is_all_zeros(&x, sizeof x, ofs, n);
430 if (expect != answer) {
432 "bitwise_is_all_zeros(0x%016"PRIx64",8,%d,%d "
433 "returned %s instead of %s\n",
435 answer ? "true" : "false",
436 expect ? "true" : "false");
446 test_follow_symlinks(int argc, char *argv[])
450 for (i = 1; i < argc; i++) {
451 char *target = follow_symlinks(argv[i]);
458 test_assert(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
464 test_ovs_scan(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
466 char str[16], str2[16], str3[16];
480 ovs_assert(ovs_scan("", ""));
481 ovs_assert(ovs_scan("", " "));
482 ovs_assert(ovs_scan(" ", " "));
483 ovs_assert(ovs_scan(" ", " "));
484 ovs_assert(ovs_scan(" \t ", " "));
486 ovs_assert(ovs_scan("xyzzy", "xyzzy"));
487 ovs_assert(ovs_scan("xy%zzy", "xy%%zzy"));
488 ovs_assert(!ovs_scan(" xy%zzy", "xy%%zzy"));
489 ovs_assert(ovs_scan(" xy%\tzzy", " xy%% zzy"));
491 ovs_assert(ovs_scan("123", "%d", &i));
492 ovs_assert(i == 123);
493 ovs_assert(ovs_scan("0", "%d", &i));
495 ovs_assert(!ovs_scan("123", "%d%d", &i, &i2));
496 ovs_assert(ovs_scan("+123", "%d", &i));
497 ovs_assert(i == 123);
498 ovs_assert(ovs_scan("-123", "%d", &i));
499 ovs_assert(i == -123);
500 ovs_assert(ovs_scan("0123", "%d", &i));
501 ovs_assert(i == 123);
502 ovs_assert(ovs_scan(" 123", "%d", &i));
503 ovs_assert(i == 123);
504 ovs_assert(ovs_scan("0x123", "%d", &i));
506 ovs_assert(ovs_scan("123", "%2d %d", &i, &i2));
509 ovs_assert(ovs_scan("+123", "%2d %d", &i, &i2));
511 ovs_assert(i2 == 23);
512 ovs_assert(ovs_scan("-123", "%2d %d", &i, &i2));
514 ovs_assert(i2 == 23);
515 ovs_assert(ovs_scan("0123", "%2d %d", &i, &i2));
517 ovs_assert(i2 == 23);
518 ovs_assert(ovs_scan("123", "%*2d %d", &i));
520 ovs_assert(ovs_scan("+123", "%2d %*d", &i));
522 ovs_assert(i2 == 23);
523 ovs_assert(ovs_scan("-123", "%*2d %*d"));
525 ovs_assert(ovs_scan("123", "%u", &i));
526 ovs_assert(i == 123);
527 ovs_assert(ovs_scan("0", "%u", &i));
529 ovs_assert(!ovs_scan("123", "%u%u", &i, &i2));
530 ovs_assert(ovs_scan("+123", "%u", &i));
531 ovs_assert(i == 123);
532 ovs_assert(ovs_scan("-123", "%u", &i));
533 ovs_assert(i == -123);
534 ovs_assert(ovs_scan("0123", "%u", &i));
535 ovs_assert(i == 123);
536 ovs_assert(ovs_scan(" 123", "%u", &i));
537 ovs_assert(i == 123);
538 ovs_assert(ovs_scan("0x123", "%u", &i));
540 ovs_assert(ovs_scan("123", "%2u %u", &i, &i2));
543 ovs_assert(ovs_scan("+123", "%2u %u", &i, &i2));
545 ovs_assert(i2 == 23);
546 ovs_assert(ovs_scan("-123", "%2u %u", &i, &i2));
548 ovs_assert(i2 == 23);
549 ovs_assert(ovs_scan("0123", "%2u %u", &i, &i2));
551 ovs_assert(i2 == 23);
552 ovs_assert(ovs_scan("123", "%*2u %u", &i));
554 ovs_assert(ovs_scan("+123", "%2u %*u", &i));
556 ovs_assert(i2 == 23);
557 ovs_assert(ovs_scan("-123", "%*2u %*u"));
559 ovs_assert(ovs_scan("123", "%i", &i));
560 ovs_assert(i == 123);
561 ovs_assert(ovs_scan("0", "%i", &i));
563 ovs_assert(!ovs_scan("123", "%i%i", &i, &i2));
564 ovs_assert(ovs_scan("+123", "%i", &i));
565 ovs_assert(i == 123);
566 ovs_assert(ovs_scan("-123", "%i", &i));
567 ovs_assert(i == -123);
568 ovs_assert(ovs_scan("0123", "%i", &i));
569 ovs_assert(i == 0123);
570 ovs_assert(ovs_scan(" 123", "%i", &i));
571 ovs_assert(i == 123);
572 ovs_assert(ovs_scan("0x123", "%i", &i));
573 ovs_assert(i == 0x123);
574 ovs_assert(ovs_scan("123", "%2i %i", &i, &i2));
577 ovs_assert(ovs_scan("+123", "%2i %i", &i, &i2));
579 ovs_assert(i2 == 23);
580 ovs_assert(ovs_scan("-123", "%2i %i", &i, &i2));
582 ovs_assert(i2 == 23);
583 ovs_assert(ovs_scan("0123", "%2i %i", &i, &i2));
585 ovs_assert(i2 == 23);
586 ovs_assert(ovs_scan("123", "%*2i %i", &i));
588 ovs_assert(ovs_scan("+123", "%2i %*i", &i));
590 ovs_assert(i2 == 23);
591 ovs_assert(ovs_scan("-123", "%*2i %*i"));
593 ovs_assert(ovs_scan("123", "%o", &i));
594 ovs_assert(i == 0123);
595 ovs_assert(ovs_scan("0", "%o", &i));
597 ovs_assert(!ovs_scan("123", "%o%o", &i, &i2));
598 ovs_assert(ovs_scan("+123", "%o", &i));
599 ovs_assert(i == 0123);
600 ovs_assert(ovs_scan("-123", "%o", &i));
601 ovs_assert(i == -0123);
602 ovs_assert(ovs_scan("0123", "%o", &i));
603 ovs_assert(i == 0123);
604 ovs_assert(ovs_scan(" 123", "%o", &i));
605 ovs_assert(i == 0123);
606 ovs_assert(ovs_scan("0x123", "%o", &i));
608 ovs_assert(ovs_scan("123", "%2o %o", &i, &i2));
609 ovs_assert(i == 012);
611 ovs_assert(ovs_scan("+123", "%2o %o", &i, &i2));
613 ovs_assert(i2 == 023);
614 ovs_assert(ovs_scan("-123", "%2o %o", &i, &i2));
616 ovs_assert(i2 == 023);
617 ovs_assert(ovs_scan("0123", "%2o %o", &i, &i2));
619 ovs_assert(i2 == 023);
620 ovs_assert(ovs_scan("123", "%*2o %o", &i));
622 ovs_assert(ovs_scan("+123", "%2o %*o", &i));
624 ovs_assert(i2 == 023);
625 ovs_assert(ovs_scan("-123", "%*2o %*o"));
627 ovs_assert(ovs_scan("123", "%x", &i));
628 ovs_assert(i == 0x123);
629 ovs_assert(ovs_scan("0", "%x", &i));
631 ovs_assert(!ovs_scan("123", "%x%x", &i, &i2));
632 ovs_assert(ovs_scan("+123", "%x", &i));
633 ovs_assert(i == 0x123);
634 ovs_assert(ovs_scan("-123", "%x", &i));
635 ovs_assert(i == -0x123);
636 ovs_assert(ovs_scan("0123", "%x", &i));
637 ovs_assert(i == 0x123);
638 ovs_assert(ovs_scan(" 123", "%x", &i));
639 ovs_assert(i == 0x123);
640 ovs_assert(ovs_scan("0x123", "%x", &i));
641 ovs_assert(i == 0x123);
642 ovs_assert(ovs_scan("123", "%2x %x", &i, &i2));
643 ovs_assert(i == 0x12);
645 ovs_assert(ovs_scan("+123", "%2x %x", &i, &i2));
647 ovs_assert(i2 == 0x23);
648 ovs_assert(ovs_scan("-123", "%2x %x", &i, &i2));
650 ovs_assert(i2 == 0x23);
651 ovs_assert(ovs_scan("0123", "%2x %x", &i, &i2));
653 ovs_assert(i2 == 0x23);
654 ovs_assert(ovs_scan("123", "%*2x %x", &i));
656 ovs_assert(ovs_scan("+123", "%2x %*x", &i));
658 ovs_assert(i2 == 0x23);
659 ovs_assert(ovs_scan("-123", "%*2x %*x"));
661 ovs_assert(ovs_scan("123", "%hd", &s));
662 ovs_assert(s == 123);
663 ovs_assert(!ovs_scan("123", "%hd%hd", &s, &s2));
664 ovs_assert(ovs_scan("+123", "%hd", &s));
665 ovs_assert(s == 123);
666 ovs_assert(ovs_scan("-123", "%hd", &s));
667 ovs_assert(s == -123);
668 ovs_assert(ovs_scan("0123", "%hd", &s));
669 ovs_assert(s == 123);
670 ovs_assert(ovs_scan(" 123", "%hd", &s));
671 ovs_assert(s == 123);
672 ovs_assert(ovs_scan("0x123", "%hd", &s));
674 ovs_assert(ovs_scan("123", "%2hd %hd", &s, &s2));
677 ovs_assert(ovs_scan("+123", "%2hd %hd", &s, &s2));
679 ovs_assert(s2 == 23);
680 ovs_assert(ovs_scan("-123", "%2hd %hd", &s, &s2));
682 ovs_assert(s2 == 23);
683 ovs_assert(ovs_scan("0123", "%2hd %hd", &s, &s2));
685 ovs_assert(s2 == 23);
687 ovs_assert(ovs_scan("123", "%hhd", &c));
688 ovs_assert(c == 123);
689 ovs_assert(ovs_scan("0", "%hhd", &c));
691 ovs_assert(!ovs_scan("123", "%hhd%hhd", &c, &c2));
692 ovs_assert(ovs_scan("+123", "%hhd", &c));
693 ovs_assert(c == 123);
694 ovs_assert(ovs_scan("-123", "%hhd", &c));
695 ovs_assert(c == -123);
696 ovs_assert(ovs_scan("0123", "%hhd", &c));
697 ovs_assert(c == 123);
698 ovs_assert(ovs_scan(" 123", "%hhd", &c));
699 ovs_assert(c == 123);
700 ovs_assert(ovs_scan("0x123", "%hhd", &c));
702 ovs_assert(ovs_scan("123", "%2hhd %hhd", &c, &c2));
705 ovs_assert(ovs_scan("+123", "%2hhd %hhd", &c, &c2));
707 ovs_assert(c2 == 23);
708 ovs_assert(ovs_scan("-123", "%2hhd %hhd", &c, &c2));
710 ovs_assert(c2 == 23);
711 ovs_assert(ovs_scan("0123", "%2hhd %hhd", &c, &c2));
713 ovs_assert(c2 == 23);
715 ovs_assert(ovs_scan("123", "%ld", &l));
716 ovs_assert(l == 123);
717 ovs_assert(ovs_scan("0", "%ld", &l));
719 ovs_assert(!ovs_scan("123", "%ld%ld", &l, &l2));
720 ovs_assert(ovs_scan("+123", "%ld", &l));
721 ovs_assert(l == 123);
722 ovs_assert(ovs_scan("-123", "%ld", &l));
723 ovs_assert(l == -123);
724 ovs_assert(ovs_scan("0123", "%ld", &l));
725 ovs_assert(l == 123);
726 ovs_assert(ovs_scan(" 123", "%ld", &l));
727 ovs_assert(l == 123);
728 ovs_assert(ovs_scan("0x123", "%ld", &l));
730 ovs_assert(ovs_scan("123", "%2ld %ld", &l, &l2));
733 ovs_assert(ovs_scan("+123", "%2ld %ld", &l, &l2));
735 ovs_assert(l2 == 23);
736 ovs_assert(ovs_scan("-123", "%2ld %ld", &l, &l2));
738 ovs_assert(l2 == 23);
739 ovs_assert(ovs_scan("0123", "%2ld %ld", &l, &l2));
741 ovs_assert(l2 == 23);
743 ovs_assert(ovs_scan("123", "%lld", &ll));
744 ovs_assert(ll == 123);
745 ovs_assert(ovs_scan("0", "%lld", &ll));
747 ovs_assert(!ovs_scan("123", "%lld%lld", &ll, &ll2));
748 ovs_assert(ovs_scan("+123", "%lld", &ll));
749 ovs_assert(ll == 123);
750 ovs_assert(ovs_scan("-123", "%lld", &ll));
751 ovs_assert(ll == -123);
752 ovs_assert(ovs_scan("0123", "%lld", &ll));
753 ovs_assert(ll == 123);
754 ovs_assert(ovs_scan(" 123", "%lld", &ll));
755 ovs_assert(ll == 123);
756 ovs_assert(ovs_scan("0x123", "%lld", &ll));
758 ovs_assert(ovs_scan("123", "%2lld %lld", &ll, &ll2));
759 ovs_assert(ll == 12);
760 ovs_assert(ll2 == 3);
761 ovs_assert(ovs_scan("+123", "%2lld %lld", &ll, &ll2));
763 ovs_assert(ll2 == 23);
764 ovs_assert(ovs_scan("-123", "%2lld %lld", &ll, &ll2));
765 ovs_assert(ll == -1);
766 ovs_assert(ll2 == 23);
767 ovs_assert(ovs_scan("0123", "%2lld %lld", &ll, &ll2));
769 ovs_assert(ll2 == 23);
771 ovs_assert(ovs_scan("123", "%jd", &im));
772 ovs_assert(im == 123);
773 ovs_assert(ovs_scan("0", "%jd", &im));
775 ovs_assert(!ovs_scan("123", "%jd%jd", &im, &im2));
776 ovs_assert(ovs_scan("+123", "%jd", &im));
777 ovs_assert(im == 123);
778 ovs_assert(ovs_scan("-123", "%jd", &im));
779 ovs_assert(im == -123);
780 ovs_assert(ovs_scan("0123", "%jd", &im));
781 ovs_assert(im == 123);
782 ovs_assert(ovs_scan(" 123", "%jd", &im));
783 ovs_assert(im == 123);
784 ovs_assert(ovs_scan("0x123", "%jd", &im));
786 ovs_assert(ovs_scan("123", "%2jd %jd", &im, &im2));
787 ovs_assert(im == 12);
788 ovs_assert(im2 == 3);
789 ovs_assert(ovs_scan("+123", "%2jd %jd", &im, &im2));
791 ovs_assert(im2 == 23);
792 ovs_assert(ovs_scan("-123", "%2jd %jd", &im, &im2));
793 ovs_assert(im == -1);
794 ovs_assert(im2 == 23);
795 ovs_assert(ovs_scan("0123", "%2jd %jd", &im, &im2));
797 ovs_assert(im2 == 23);
799 ovs_assert(ovs_scan("123", "%td", &pd));
800 ovs_assert(pd == 123);
801 ovs_assert(ovs_scan("0", "%td", &pd));
803 ovs_assert(!ovs_scan("123", "%td%td", &pd, &pd2));
804 ovs_assert(ovs_scan("+123", "%td", &pd));
805 ovs_assert(pd == 123);
806 ovs_assert(ovs_scan("-123", "%td", &pd));
807 ovs_assert(pd == -123);
808 ovs_assert(ovs_scan("0123", "%td", &pd));
809 ovs_assert(pd == 123);
810 ovs_assert(ovs_scan(" 123", "%td", &pd));
811 ovs_assert(pd == 123);
812 ovs_assert(ovs_scan("0x123", "%td", &pd));
814 ovs_assert(ovs_scan("123", "%2td %td", &pd, &pd2));
815 ovs_assert(pd == 12);
816 ovs_assert(pd2 == 3);
817 ovs_assert(ovs_scan("+123", "%2td %td", &pd, &pd2));
819 ovs_assert(pd2 == 23);
820 ovs_assert(ovs_scan("-123", "%2td %td", &pd, &pd2));
821 ovs_assert(pd == -1);
822 ovs_assert(pd2 == 23);
823 ovs_assert(ovs_scan("0123", "%2td %td", &pd, &pd2));
825 ovs_assert(pd2 == 23);
827 ovs_assert(ovs_scan("123", "%zd", &sz));
828 ovs_assert(sz == 123);
829 ovs_assert(ovs_scan("0", "%zd", &sz));
831 ovs_assert(!ovs_scan("123", "%zd%zd", &sz, &sz2));
832 ovs_assert(ovs_scan("+123", "%zd", &sz));
833 ovs_assert(sz == 123);
834 ovs_assert(ovs_scan("-123", "%zd", &sz));
835 ovs_assert(sz == -123);
836 ovs_assert(ovs_scan("0123", "%zd", &sz));
837 ovs_assert(sz == 123);
838 ovs_assert(ovs_scan(" 123", "%zd", &sz));
839 ovs_assert(sz == 123);
840 ovs_assert(ovs_scan("0x123", "%zd", &sz));
842 ovs_assert(ovs_scan("123", "%2zd %zd", &sz, &sz2));
843 ovs_assert(sz == 12);
844 ovs_assert(sz2 == 3);
845 ovs_assert(ovs_scan("+123", "%2zd %zd", &sz, &sz2));
847 ovs_assert(sz2 == 23);
848 ovs_assert(ovs_scan("-123", "%2zd %zd", &sz, &sz2));
849 ovs_assert(sz == -1);
850 ovs_assert(sz2 == 23);
851 ovs_assert(ovs_scan("0123", "%2zd %zd", &sz, &sz2));
853 ovs_assert(sz2 == 23);
855 ovs_assert(ovs_scan("0.25", "%f", &f));
856 ovs_assert(f == 0.25);
857 ovs_assert(ovs_scan("1.0", "%f", &f));
858 ovs_assert(f == 1.0);
859 ovs_assert(ovs_scan("-5", "%f", &f));
860 ovs_assert(f == -5.0);
861 ovs_assert(ovs_scan("+6", "%f", &f));
862 ovs_assert(f == 6.0);
863 ovs_assert(ovs_scan("-1e5", "%f", &f));
864 ovs_assert(f == -1e5);
865 ovs_assert(ovs_scan("-.25", "%f", &f));
866 ovs_assert(f == -.25);
867 ovs_assert(ovs_scan("+123.e1", "%f", &f));
868 ovs_assert(f == 1230.0);
869 ovs_assert(ovs_scan("25e-2", "%f", &f));
870 ovs_assert(f == 0.25);
871 ovs_assert(ovs_scan("0.25", "%1f %f", &f, &f2));
873 ovs_assert(f2 == 0.25);
874 ovs_assert(ovs_scan("1.0", "%2f %f", &f, &f2));
875 ovs_assert(f == 1.0);
876 ovs_assert(f2 == 0.0);
877 ovs_assert(!ovs_scan("-5", "%1f", &f));
878 ovs_assert(!ovs_scan("+6", "%1f", &f));
879 ovs_assert(!ovs_scan("-1e5", "%2f %*f", &f));
881 ovs_assert(!ovs_scan("-.25", "%2f", &f));
882 ovs_assert(!ovs_scan("+123.e1", "%6f", &f));
883 ovs_assert(!ovs_scan("25e-2", "%4f", &f));
885 ovs_assert(ovs_scan("0.25", "%lf", &d));
886 ovs_assert(d == 0.25);
887 ovs_assert(ovs_scan("1.0", "%lf", &d));
888 ovs_assert(d == 1.0);
889 ovs_assert(ovs_scan("-5", "%lf", &d));
890 ovs_assert(d == -5.0);
891 ovs_assert(ovs_scan("+6", "%lf", &d));
892 ovs_assert(d == 6.0);
893 ovs_assert(ovs_scan("-1e5", "%lf", &d));
894 ovs_assert(d == -1e5);
895 ovs_assert(ovs_scan("-.25", "%lf", &d));
896 ovs_assert(d == -.25);
897 ovs_assert(ovs_scan("+123.e1", "%lf", &d));
898 ovs_assert(d == 1230.0);
899 ovs_assert(ovs_scan("25e-2", "%lf", &d));
900 ovs_assert(d == 0.25);
901 ovs_assert(ovs_scan("0.25", "%1lf %lf", &d, &d2));
903 ovs_assert(d2 == 0.25);
904 ovs_assert(ovs_scan("1.0", "%2lf %lf", &d, &d2));
905 ovs_assert(d == 1.0);
906 ovs_assert(d2 == 0.0);
907 ovs_assert(!ovs_scan("-5", "%1lf", &d));
908 ovs_assert(!ovs_scan("+6", "%1lf", &d));
909 ovs_assert(!ovs_scan("-1e5", "%2lf %*f", &d));
911 ovs_assert(!ovs_scan("-.25", "%2lf", &d));
912 ovs_assert(!ovs_scan("+123.e1", "%6lf", &d));
913 ovs_assert(!ovs_scan("25e-2", "%4lf", &d));
915 ovs_assert(ovs_scan("0.25", "%Lf", &ld));
916 ovs_assert(ld == 0.25);
917 ovs_assert(ovs_scan("1.0", "%Lf", &ld));
918 ovs_assert(ld == 1.0);
919 ovs_assert(ovs_scan("-5", "%Lf", &ld));
920 ovs_assert(ld == -5.0);
921 ovs_assert(ovs_scan("+6", "%Lf", &ld));
922 ovs_assert(ld == 6.0);
923 ovs_assert(ovs_scan("-1e5", "%Lf", &ld));
924 ovs_assert(ld == -1e5);
925 ovs_assert(ovs_scan("-.25", "%Lf", &ld));
926 ovs_assert(ld == -.25);
927 ovs_assert(ovs_scan("+123.e1", "%Lf", &ld));
928 ovs_assert(ld == 1230.0);
929 ovs_assert(ovs_scan("25e-2", "%Lf", &ld));
930 ovs_assert(ld == 0.25);
931 ovs_assert(ovs_scan("0.25", "%1Lf %Lf", &ld, &ld2));
933 ovs_assert(ld2 == 0.25);
934 ovs_assert(ovs_scan("1.0", "%2Lf %Lf", &ld, &ld2));
935 ovs_assert(ld == 1.0);
936 ovs_assert(ld2 == 0.0);
937 ovs_assert(!ovs_scan("-5", "%1Lf", &ld));
938 ovs_assert(!ovs_scan("+6", "%1Lf", &ld));
939 ovs_assert(!ovs_scan("-1e5", "%2Lf %*f", &ld));
940 ovs_assert(ld == -1);
941 ovs_assert(!ovs_scan("-.25", "%2Lf", &ld));
942 ovs_assert(!ovs_scan("+123.e1", "%6Lf", &ld));
943 ovs_assert(!ovs_scan("25e-2", "%4Lf", &ld));
945 ovs_assert(ovs_scan(" Hello,\tworld ", "%*s%n%*s%n", &n, &n2));
947 ovs_assert(n2 == 13);
948 ovs_assert(!ovs_scan(" Hello,\tworld ", "%*s%*s%*s"));
949 ovs_assert(ovs_scan(" Hello,\tworld ", "%6s%n%5s%n", str, &n, str2, &n2));
950 ovs_assert(!strcmp(str, "Hello,"));
952 ovs_assert(!strcmp(str2, "world"));
953 ovs_assert(n2 == 13);
954 ovs_assert(ovs_scan(" Hello,\tworld ", "%5s%5s%5s", str, str2, str3));
955 ovs_assert(!strcmp(str, "Hello"));
956 ovs_assert(!strcmp(str2, ","));
957 ovs_assert(!strcmp(str3, "world"));
958 ovs_assert(!ovs_scan(" ", "%*s"));
960 ovs_assert(ovs_scan(" Hello,\tworld ", "%*c%n%*c%n%c%n",
964 ovs_assert(c == 'e');
966 ovs_assert(ovs_scan(" Hello,\tworld ", "%*5c%5c", str));
967 ovs_assert(!memcmp(str, "o,\two", 5));
968 ovs_assert(!ovs_scan(" Hello,\tworld ", "%*15c"));
970 ovs_assert(ovs_scan("0x1234xyzzy", "%9[x0-9a-fA-F]%n", str, &n));
971 ovs_assert(!strcmp(str, "0x1234x"));
973 ovs_assert(ovs_scan("foo:bar=baz", "%5[^:=]%n:%5[^:=]%n=%5[^:=]%n",
974 str, &n, str2, &n2, str3, &n3));
975 ovs_assert(!strcmp(str, "foo"));
977 ovs_assert(!strcmp(str2, "bar"));
979 ovs_assert(!strcmp(str3, "baz"));
980 ovs_assert(n3 == 11);
981 ovs_assert(!ovs_scan(" ", "%*[0-9]"));
982 ovs_assert(ovs_scan("0x123a]4xyzzy-", "%[]x0-9a-fA-F]", str));
983 ovs_assert(!strcmp(str, "0x123a]4x"));
984 ovs_assert(ovs_scan("abc]xyz","%[^]xyz]", str));
985 ovs_assert(!strcmp(str, "abc"));
986 ovs_assert(!ovs_scan("0x123a]4xyzzy-", "%[x0-9]a-fA-F]", str));
987 ovs_assert(ovs_scan("0x12-3]xyz", "%[x0-9a-f-]", str));
988 ovs_assert(!strcmp(str, "0x12-3"));
989 ovs_assert(ovs_scan("0x12-3]xyz", "%[^a-f-]", str));
990 ovs_assert(!strcmp(str, "0x12"));
991 ovs_assert(sscanf("0x12-3]xyz", "%[^-a-f]", str));
992 ovs_assert(!strcmp(str, "0x12"));
995 static const struct command commands[] = {
996 {"ctz", 0, 0, test_ctz},
997 {"round_up_pow2", 0, 0, test_round_up_pow2},
998 {"round_down_pow2", 0, 0, test_round_down_pow2},
999 {"popcount", 0, 0, test_popcount},
1000 {"log_2_floor", 0, 0, test_log_2_floor},
1001 {"bitwise_copy", 0, 0, test_bitwise_copy},
1002 {"bitwise_zero", 0, 0, test_bitwise_zero},
1003 {"bitwise_one", 0, 0, test_bitwise_one},
1004 {"bitwise_is_all_zeros", 0, 0, test_bitwise_is_all_zeros},
1005 {"follow-symlinks", 1, INT_MAX, test_follow_symlinks},
1006 {"assert", 0, 0, test_assert},
1007 {"ovs_scan", 0, 0, test_ovs_scan},
1012 parse_options(int argc, char *argv[])
1017 static const struct option long_options[] = {
1021 char *short_options = long_options_to_short_options(long_options);
1024 int c = getopt_long(argc, argv, short_options, long_options, NULL);
1030 VLOG_OPTION_HANDLERS
1039 free(short_options);
1043 main(int argc, char *argv[])
1045 set_program_name(argv[0]);
1046 parse_options(argc, argv);
1047 run_command(argc - optind, argv + optind, commands);