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_ctz32(uint32_t x
, int n
)
67 fprintf(stderr
, "ctz32(%"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. */
90 check_ctz32(1 << n
, n
);
92 /* Check maximum x such that f(x) == n. */
93 check_ctz32(UINT32_MAX
<< n
, n
);
95 /* Check a random value in the middle. */
96 check_ctz32((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
);
117 check_clz32(uint32_t x
, int n
)
120 fprintf(stderr
, "clz32(%"PRIu32
") is %d but should be %d\n",
127 check_clz64(uint64_t x
, int n
)
130 fprintf(stderr
, "clz64(%"PRIu64
") is %d but should be %d\n",
137 test_clz(int argc OVS_UNUSED
, char *argv
[] OVS_UNUSED
)
141 for (n
= 0; n
< 32; n
++) {
142 /* Check minimum x such that f(x) == n. */
143 check_clz32((1u << 31) >> n
, n
);
145 /* Check maximum x such that f(x) == n. */
146 check_clz32(UINT32_MAX
>> n
, n
);
148 /* Check a random value in the middle. */
149 check_clz32((random_uint32() | 1u << 31) >> n
, n
);
152 for (n
= 0; n
< 64; n
++) {
153 /* Check minimum x such that f(x) == n. */
154 check_clz64((UINT64_C(1) << 63) >> n
, n
);
156 /* Check maximum x such that f(x) == n. */
157 check_clz64(UINT64_MAX
>> n
, n
);
159 /* Check a random value in the middle. */
160 check_clz64((random_uint64() | UINT64_C(1) << 63) >> n
, n
);
168 /* Returns a random number in the range 'min'...'max' inclusive. */
170 random_in_range(uint32_t min
, uint32_t max
)
172 return min
== max
? min
: min
+ random_range(max
- min
+ 1);
176 check_rup2(uint32_t x
, int n
)
178 uint32_t rup2
= ROUND_UP_POW2(x
);
180 fprintf(stderr
, "ROUND_UP_POW2(%#"PRIx32
") is %#"PRIx32
" "
181 "but should be %#"PRIx32
"\n", x
, rup2
, n
);
187 test_round_up_pow2(int argc OVS_UNUSED
, char *argv
[] OVS_UNUSED
)
191 for (n
= 0; n
< 32; n
++) {
192 /* Min, max value for which ROUND_UP_POW2 should yield (1 << n). */
193 uint32_t min
= ((1u << n
) >> 1) + 1;
194 uint32_t max
= 1u << n
;
196 check_rup2(min
, 1u << n
);
197 check_rup2(max
, 1u << n
);
198 check_rup2(random_in_range(min
, max
), 1u << n
);
204 check_rdp2(uint32_t x
, int n
)
206 uint32_t rdp2
= ROUND_DOWN_POW2(x
);
208 fprintf(stderr
, "ROUND_DOWN_POW2(%#"PRIx32
") is %#"PRIx32
" "
209 "but should be %#"PRIx32
"\n", x
, rdp2
, n
);
215 test_round_down_pow2(int argc OVS_UNUSED
, char *argv
[] OVS_UNUSED
)
219 for (n
= 0; n
< 32; n
++) {
220 /* Min, max value for which ROUND_DOWN_POW2 should yield (1 << n). */
221 uint32_t min
= 1u << n
;
222 uint32_t max
= ((1u << n
) << 1) - 1;
224 check_rdp2(min
, 1u << n
);
225 check_rdp2(max
, 1u << n
);
226 check_rdp2(random_in_range(min
, max
), 1u << n
);
232 shuffle(uint64_t *p
, size_t n
)
234 for (; n
> 1; n
--, p
++) {
235 uint64_t *q
= &p
[random_range(n
)];
243 check_count_1bits(uint64_t x
, int n
)
245 if (count_1bits(x
) != n
) {
246 fprintf(stderr
, "count_1bits(%#"PRIx64
") is %d but should be %d\n",
247 x
, count_1bits(x
), n
);
253 test_count_1bits(int argc OVS_UNUSED
, char *argv
[] OVS_UNUSED
)
258 for (i
= 0; i
< ARRAY_SIZE(bits
); i
++) {
259 bits
[i
] = UINT64_C(1) << i
;
262 check_count_1bits(0, 0);
264 for (i
= 0; i
< 1000; i
++) {
268 shuffle(bits
, ARRAY_SIZE(bits
));
269 for (j
= 0; j
< 64; j
++) {
271 check_count_1bits(x
, j
+ 1);
273 assert(x
== UINT64_MAX
);
275 shuffle(bits
, ARRAY_SIZE(bits
));
276 for (j
= 63; j
>= 0; j
--) {
278 check_count_1bits(x
, j
);
284 /* Returns the sum of the squares of the first 'n' positive integers. */
286 sum_of_squares(int n
)
288 return n
* (n
+ 1) * (2 * n
+ 1) / 6;
292 test_bitwise_copy(int argc OVS_UNUSED
, char *argv
[] OVS_UNUSED
)
294 unsigned int n_loops
;
300 for (n_bits
= 0; n_bits
<= 64; n_bits
++) {
301 for (src_ofs
= 0; src_ofs
< 64 - n_bits
; src_ofs
++) {
302 for (dst_ofs
= 0; dst_ofs
< 64 - n_bits
; dst_ofs
++) {
303 ovs_be64 src
= htonll(random_uint64());
304 ovs_be64 dst
= htonll(random_uint64());
305 ovs_be64 orig_dst
= dst
;
311 uint64_t mask
= (UINT64_C(1) << n_bits
) - 1;
312 expect
= orig_dst
& ~htonll(mask
<< dst_ofs
);
313 expect
|= htonll(((ntohll(src
) >> src_ofs
) & mask
)
317 bitwise_copy(&src
, sizeof src
, src_ofs
,
318 &dst
, sizeof dst
, dst_ofs
,
321 fprintf(stderr
,"copy_bits(0x%016"PRIx64
",8,%d, "
322 "0x%016"PRIx64
",8,%d, %d) yielded 0x%016"PRIx64
" "
323 "instead of the expected 0x%016"PRIx64
"\n",
324 ntohll(src
), src_ofs
,
325 ntohll(orig_dst
), dst_ofs
,
327 ntohll(dst
), ntohll(expect
));
336 if (n_loops
!= sum_of_squares(64)) {
342 test_bitwise_zero(int argc OVS_UNUSED
, char *argv
[] OVS_UNUSED
)
344 unsigned int n_loops
;
349 for (n_bits
= 0; n_bits
<= 64; n_bits
++) {
350 for (dst_ofs
= 0; dst_ofs
< 64 - n_bits
; dst_ofs
++) {
351 ovs_be64 dst
= htonll(random_uint64());
352 ovs_be64 orig_dst
= dst
;
358 uint64_t mask
= (UINT64_C(1) << n_bits
) - 1;
359 expect
= orig_dst
& ~htonll(mask
<< dst_ofs
);
362 bitwise_zero(&dst
, sizeof dst
, dst_ofs
, n_bits
);
364 fprintf(stderr
,"bitwise_zero(0x%016"PRIx64
",8,%d, %d) "
365 "yielded 0x%016"PRIx64
" "
366 "instead of the expected 0x%016"PRIx64
"\n",
367 ntohll(orig_dst
), dst_ofs
,
369 ntohll(dst
), ntohll(expect
));
377 if (n_loops
!= 64 * (64 + 1) / 2) {
383 test_bitwise_one(int argc OVS_UNUSED
, char *argv
[] OVS_UNUSED
)
385 unsigned int n_loops
;
390 for (n_bits
= 0; n_bits
<= 64; n_bits
++) {
391 for (dst_ofs
= 0; dst_ofs
< 64 - n_bits
; dst_ofs
++) {
392 ovs_be64 dst
= htonll(random_uint64());
393 ovs_be64 orig_dst
= dst
;
397 expect
= OVS_BE64_MAX
;
399 uint64_t mask
= (UINT64_C(1) << n_bits
) - 1;
400 expect
= orig_dst
| htonll(mask
<< dst_ofs
);
403 bitwise_one(&dst
, sizeof dst
, dst_ofs
, n_bits
);
405 fprintf(stderr
,"bitwise_one(0x%016"PRIx64
",8,%d, %d) "
406 "yielded 0x%016"PRIx64
" "
407 "instead of the expected 0x%016"PRIx64
"\n",
408 ntohll(orig_dst
), dst_ofs
,
410 ntohll(dst
), ntohll(expect
));
418 if (n_loops
!= 64 * (64 + 1) / 2) {
424 test_bitwise_is_all_zeros(int argc OVS_UNUSED
, char *argv
[] OVS_UNUSED
)
428 for (n_loops
= 0; n_loops
< 100; n_loops
++) {
429 ovs_be64 x
= htonll(0);
432 for (i
= 0; i
< 64; i
++) {
436 /* Change a random 0-bit into a 1-bit. */
438 bit
= htonll(UINT64_C(1) << (random_range(64)));
442 for (ofs
= 0; ofs
< 64; ofs
++) {
443 for (n
= 0; n
<= 64 - ofs
; n
++) {
449 : !(x
& htonll(((UINT64_C(1) << n
) - 1)
451 answer
= bitwise_is_all_zeros(&x
, sizeof x
, ofs
, n
);
452 if (expect
!= answer
) {
454 "bitwise_is_all_zeros(0x%016"PRIx64
",8,%d,%d "
455 "returned %s instead of %s\n",
457 answer
? "true" : "false",
458 expect
? "true" : "false");
468 test_follow_symlinks(int argc
, char *argv
[])
472 for (i
= 1; i
< argc
; i
++) {
473 char *target
= follow_symlinks(argv
[i
]);
480 test_assert(int argc OVS_UNUSED
, char *argv
[] OVS_UNUSED
)
486 test_ovs_scan(int argc OVS_UNUSED
, char *argv
[] OVS_UNUSED
)
488 char str
[16], str2
[16], str3
[16];
502 ovs_assert(ovs_scan("", ""));
503 ovs_assert(ovs_scan("", " "));
504 ovs_assert(ovs_scan(" ", " "));
505 ovs_assert(ovs_scan(" ", " "));
506 ovs_assert(ovs_scan(" \t ", " "));
508 ovs_assert(ovs_scan("xyzzy", "xyzzy"));
509 ovs_assert(ovs_scan("xy%zzy", "xy%%zzy"));
510 ovs_assert(!ovs_scan(" xy%zzy", "xy%%zzy"));
511 ovs_assert(ovs_scan(" xy%\tzzy", " xy%% zzy"));
513 ovs_assert(ovs_scan("123", "%d", &i
));
514 ovs_assert(i
== 123);
515 ovs_assert(ovs_scan("0", "%d", &i
));
517 ovs_assert(!ovs_scan("123", "%d%d", &i
, &i2
));
518 ovs_assert(ovs_scan("+123", "%d", &i
));
519 ovs_assert(i
== 123);
520 ovs_assert(ovs_scan("-123", "%d", &i
));
521 ovs_assert(i
== -123);
522 ovs_assert(ovs_scan("0123", "%d", &i
));
523 ovs_assert(i
== 123);
524 ovs_assert(ovs_scan(" 123", "%d", &i
));
525 ovs_assert(i
== 123);
526 ovs_assert(ovs_scan("0x123", "%d", &i
));
528 ovs_assert(ovs_scan("123", "%2d %d", &i
, &i2
));
531 ovs_assert(ovs_scan("+123", "%2d %d", &i
, &i2
));
533 ovs_assert(i2
== 23);
534 ovs_assert(ovs_scan("-123", "%2d %d", &i
, &i2
));
536 ovs_assert(i2
== 23);
537 ovs_assert(ovs_scan("0123", "%2d %d", &i
, &i2
));
539 ovs_assert(i2
== 23);
540 ovs_assert(ovs_scan("123", "%*2d %d", &i
));
542 ovs_assert(ovs_scan("+123", "%2d %*d", &i
));
544 ovs_assert(i2
== 23);
545 ovs_assert(ovs_scan("-123", "%*2d %*d"));
547 ovs_assert(ovs_scan("123", "%u", &i
));
548 ovs_assert(i
== 123);
549 ovs_assert(ovs_scan("0", "%u", &i
));
551 ovs_assert(!ovs_scan("123", "%u%u", &i
, &i2
));
552 ovs_assert(ovs_scan("+123", "%u", &i
));
553 ovs_assert(i
== 123);
554 ovs_assert(ovs_scan("-123", "%u", &i
));
555 ovs_assert(i
== -123);
556 ovs_assert(ovs_scan("0123", "%u", &i
));
557 ovs_assert(i
== 123);
558 ovs_assert(ovs_scan(" 123", "%u", &i
));
559 ovs_assert(i
== 123);
560 ovs_assert(ovs_scan("0x123", "%u", &i
));
562 ovs_assert(ovs_scan("123", "%2u %u", &i
, &i2
));
565 ovs_assert(ovs_scan("+123", "%2u %u", &i
, &i2
));
567 ovs_assert(i2
== 23);
568 ovs_assert(ovs_scan("-123", "%2u %u", &i
, &i2
));
570 ovs_assert(i2
== 23);
571 ovs_assert(ovs_scan("0123", "%2u %u", &i
, &i2
));
573 ovs_assert(i2
== 23);
574 ovs_assert(ovs_scan("123", "%*2u %u", &i
));
576 ovs_assert(ovs_scan("+123", "%2u %*u", &i
));
578 ovs_assert(i2
== 23);
579 ovs_assert(ovs_scan("-123", "%*2u %*u"));
581 ovs_assert(ovs_scan("123", "%i", &i
));
582 ovs_assert(i
== 123);
583 ovs_assert(ovs_scan("0", "%i", &i
));
585 ovs_assert(!ovs_scan("123", "%i%i", &i
, &i2
));
586 ovs_assert(ovs_scan("+123", "%i", &i
));
587 ovs_assert(i
== 123);
588 ovs_assert(ovs_scan("-123", "%i", &i
));
589 ovs_assert(i
== -123);
590 ovs_assert(ovs_scan("0123", "%i", &i
));
591 ovs_assert(i
== 0123);
592 ovs_assert(ovs_scan(" 123", "%i", &i
));
593 ovs_assert(i
== 123);
594 ovs_assert(ovs_scan("0x123", "%i", &i
));
595 ovs_assert(i
== 0x123);
596 ovs_assert(ovs_scan("123", "%2i %i", &i
, &i2
));
599 ovs_assert(ovs_scan("+123", "%2i %i", &i
, &i2
));
601 ovs_assert(i2
== 23);
602 ovs_assert(ovs_scan("-123", "%2i %i", &i
, &i2
));
604 ovs_assert(i2
== 23);
605 ovs_assert(ovs_scan("0123", "%2i %i", &i
, &i2
));
607 ovs_assert(i2
== 23);
608 ovs_assert(ovs_scan("123", "%*2i %i", &i
));
610 ovs_assert(ovs_scan("+123", "%2i %*i", &i
));
612 ovs_assert(i2
== 23);
613 ovs_assert(ovs_scan("-123", "%*2i %*i"));
615 ovs_assert(ovs_scan("123", "%o", &i
));
616 ovs_assert(i
== 0123);
617 ovs_assert(ovs_scan("0", "%o", &i
));
619 ovs_assert(!ovs_scan("123", "%o%o", &i
, &i2
));
620 ovs_assert(ovs_scan("+123", "%o", &i
));
621 ovs_assert(i
== 0123);
622 ovs_assert(ovs_scan("-123", "%o", &i
));
623 ovs_assert(i
== -0123);
624 ovs_assert(ovs_scan("0123", "%o", &i
));
625 ovs_assert(i
== 0123);
626 ovs_assert(ovs_scan(" 123", "%o", &i
));
627 ovs_assert(i
== 0123);
628 ovs_assert(ovs_scan("0x123", "%o", &i
));
630 ovs_assert(ovs_scan("123", "%2o %o", &i
, &i2
));
631 ovs_assert(i
== 012);
633 ovs_assert(ovs_scan("+123", "%2o %o", &i
, &i2
));
635 ovs_assert(i2
== 023);
636 ovs_assert(ovs_scan("-123", "%2o %o", &i
, &i2
));
638 ovs_assert(i2
== 023);
639 ovs_assert(ovs_scan("0123", "%2o %o", &i
, &i2
));
641 ovs_assert(i2
== 023);
642 ovs_assert(ovs_scan("123", "%*2o %o", &i
));
644 ovs_assert(ovs_scan("+123", "%2o %*o", &i
));
646 ovs_assert(i2
== 023);
647 ovs_assert(ovs_scan("-123", "%*2o %*o"));
649 ovs_assert(ovs_scan("123", "%x", &i
));
650 ovs_assert(i
== 0x123);
651 ovs_assert(ovs_scan("0", "%x", &i
));
653 ovs_assert(!ovs_scan("123", "%x%x", &i
, &i2
));
654 ovs_assert(ovs_scan("+123", "%x", &i
));
655 ovs_assert(i
== 0x123);
656 ovs_assert(ovs_scan("-123", "%x", &i
));
657 ovs_assert(i
== -0x123);
658 ovs_assert(ovs_scan("0123", "%x", &i
));
659 ovs_assert(i
== 0x123);
660 ovs_assert(ovs_scan(" 123", "%x", &i
));
661 ovs_assert(i
== 0x123);
662 ovs_assert(ovs_scan("0x123", "%x", &i
));
663 ovs_assert(i
== 0x123);
664 ovs_assert(ovs_scan("123", "%2x %x", &i
, &i2
));
665 ovs_assert(i
== 0x12);
667 ovs_assert(ovs_scan("+123", "%2x %x", &i
, &i2
));
669 ovs_assert(i2
== 0x23);
670 ovs_assert(ovs_scan("-123", "%2x %x", &i
, &i2
));
672 ovs_assert(i2
== 0x23);
673 ovs_assert(ovs_scan("0123", "%2x %x", &i
, &i2
));
675 ovs_assert(i2
== 0x23);
676 ovs_assert(ovs_scan("123", "%*2x %x", &i
));
678 ovs_assert(ovs_scan("+123", "%2x %*x", &i
));
680 ovs_assert(i2
== 0x23);
681 ovs_assert(ovs_scan("-123", "%*2x %*x"));
683 ovs_assert(ovs_scan("123", "%hd", &s
));
684 ovs_assert(s
== 123);
685 ovs_assert(!ovs_scan("123", "%hd%hd", &s
, &s2
));
686 ovs_assert(ovs_scan("+123", "%hd", &s
));
687 ovs_assert(s
== 123);
688 ovs_assert(ovs_scan("-123", "%hd", &s
));
689 ovs_assert(s
== -123);
690 ovs_assert(ovs_scan("0123", "%hd", &s
));
691 ovs_assert(s
== 123);
692 ovs_assert(ovs_scan(" 123", "%hd", &s
));
693 ovs_assert(s
== 123);
694 ovs_assert(ovs_scan("0x123", "%hd", &s
));
696 ovs_assert(ovs_scan("123", "%2hd %hd", &s
, &s2
));
699 ovs_assert(ovs_scan("+123", "%2hd %hd", &s
, &s2
));
701 ovs_assert(s2
== 23);
702 ovs_assert(ovs_scan("-123", "%2hd %hd", &s
, &s2
));
704 ovs_assert(s2
== 23);
705 ovs_assert(ovs_scan("0123", "%2hd %hd", &s
, &s2
));
707 ovs_assert(s2
== 23);
709 ovs_assert(ovs_scan("123", "%hhd", &c
));
710 ovs_assert(c
== 123);
711 ovs_assert(ovs_scan("0", "%hhd", &c
));
713 ovs_assert(!ovs_scan("123", "%hhd%hhd", &c
, &c2
));
714 ovs_assert(ovs_scan("+123", "%hhd", &c
));
715 ovs_assert(c
== 123);
716 ovs_assert(ovs_scan("-123", "%hhd", &c
));
717 ovs_assert(c
== -123);
718 ovs_assert(ovs_scan("0123", "%hhd", &c
));
719 ovs_assert(c
== 123);
720 ovs_assert(ovs_scan(" 123", "%hhd", &c
));
721 ovs_assert(c
== 123);
722 ovs_assert(ovs_scan("0x123", "%hhd", &c
));
724 ovs_assert(ovs_scan("123", "%2hhd %hhd", &c
, &c2
));
727 ovs_assert(ovs_scan("+123", "%2hhd %hhd", &c
, &c2
));
729 ovs_assert(c2
== 23);
730 ovs_assert(ovs_scan("-123", "%2hhd %hhd", &c
, &c2
));
732 ovs_assert(c2
== 23);
733 ovs_assert(ovs_scan("0123", "%2hhd %hhd", &c
, &c2
));
735 ovs_assert(c2
== 23);
737 ovs_assert(ovs_scan("123", "%ld", &l
));
738 ovs_assert(l
== 123);
739 ovs_assert(ovs_scan("0", "%ld", &l
));
741 ovs_assert(!ovs_scan("123", "%ld%ld", &l
, &l2
));
742 ovs_assert(ovs_scan("+123", "%ld", &l
));
743 ovs_assert(l
== 123);
744 ovs_assert(ovs_scan("-123", "%ld", &l
));
745 ovs_assert(l
== -123);
746 ovs_assert(ovs_scan("0123", "%ld", &l
));
747 ovs_assert(l
== 123);
748 ovs_assert(ovs_scan(" 123", "%ld", &l
));
749 ovs_assert(l
== 123);
750 ovs_assert(ovs_scan("0x123", "%ld", &l
));
752 ovs_assert(ovs_scan("123", "%2ld %ld", &l
, &l2
));
755 ovs_assert(ovs_scan("+123", "%2ld %ld", &l
, &l2
));
757 ovs_assert(l2
== 23);
758 ovs_assert(ovs_scan("-123", "%2ld %ld", &l
, &l2
));
760 ovs_assert(l2
== 23);
761 ovs_assert(ovs_scan("0123", "%2ld %ld", &l
, &l2
));
763 ovs_assert(l2
== 23);
765 ovs_assert(ovs_scan("123", "%lld", &ll
));
766 ovs_assert(ll
== 123);
767 ovs_assert(ovs_scan("0", "%lld", &ll
));
769 ovs_assert(!ovs_scan("123", "%lld%lld", &ll
, &ll2
));
770 ovs_assert(ovs_scan("+123", "%lld", &ll
));
771 ovs_assert(ll
== 123);
772 ovs_assert(ovs_scan("-123", "%lld", &ll
));
773 ovs_assert(ll
== -123);
774 ovs_assert(ovs_scan("0123", "%lld", &ll
));
775 ovs_assert(ll
== 123);
776 ovs_assert(ovs_scan(" 123", "%lld", &ll
));
777 ovs_assert(ll
== 123);
778 ovs_assert(ovs_scan("0x123", "%lld", &ll
));
780 ovs_assert(ovs_scan("123", "%2lld %lld", &ll
, &ll2
));
781 ovs_assert(ll
== 12);
782 ovs_assert(ll2
== 3);
783 ovs_assert(ovs_scan("+123", "%2lld %lld", &ll
, &ll2
));
785 ovs_assert(ll2
== 23);
786 ovs_assert(ovs_scan("-123", "%2lld %lld", &ll
, &ll2
));
787 ovs_assert(ll
== -1);
788 ovs_assert(ll2
== 23);
789 ovs_assert(ovs_scan("0123", "%2lld %lld", &ll
, &ll2
));
791 ovs_assert(ll2
== 23);
793 ovs_assert(ovs_scan("123", "%jd", &im
));
794 ovs_assert(im
== 123);
795 ovs_assert(ovs_scan("0", "%jd", &im
));
797 ovs_assert(!ovs_scan("123", "%jd%jd", &im
, &im2
));
798 ovs_assert(ovs_scan("+123", "%jd", &im
));
799 ovs_assert(im
== 123);
800 ovs_assert(ovs_scan("-123", "%jd", &im
));
801 ovs_assert(im
== -123);
802 ovs_assert(ovs_scan("0123", "%jd", &im
));
803 ovs_assert(im
== 123);
804 ovs_assert(ovs_scan(" 123", "%jd", &im
));
805 ovs_assert(im
== 123);
806 ovs_assert(ovs_scan("0x123", "%jd", &im
));
808 ovs_assert(ovs_scan("123", "%2jd %jd", &im
, &im2
));
809 ovs_assert(im
== 12);
810 ovs_assert(im2
== 3);
811 ovs_assert(ovs_scan("+123", "%2jd %jd", &im
, &im2
));
813 ovs_assert(im2
== 23);
814 ovs_assert(ovs_scan("-123", "%2jd %jd", &im
, &im2
));
815 ovs_assert(im
== -1);
816 ovs_assert(im2
== 23);
817 ovs_assert(ovs_scan("0123", "%2jd %jd", &im
, &im2
));
819 ovs_assert(im2
== 23);
821 ovs_assert(ovs_scan("123", "%td", &pd
));
822 ovs_assert(pd
== 123);
823 ovs_assert(ovs_scan("0", "%td", &pd
));
825 ovs_assert(!ovs_scan("123", "%td%td", &pd
, &pd2
));
826 ovs_assert(ovs_scan("+123", "%td", &pd
));
827 ovs_assert(pd
== 123);
828 ovs_assert(ovs_scan("-123", "%td", &pd
));
829 ovs_assert(pd
== -123);
830 ovs_assert(ovs_scan("0123", "%td", &pd
));
831 ovs_assert(pd
== 123);
832 ovs_assert(ovs_scan(" 123", "%td", &pd
));
833 ovs_assert(pd
== 123);
834 ovs_assert(ovs_scan("0x123", "%td", &pd
));
836 ovs_assert(ovs_scan("123", "%2td %td", &pd
, &pd2
));
837 ovs_assert(pd
== 12);
838 ovs_assert(pd2
== 3);
839 ovs_assert(ovs_scan("+123", "%2td %td", &pd
, &pd2
));
841 ovs_assert(pd2
== 23);
842 ovs_assert(ovs_scan("-123", "%2td %td", &pd
, &pd2
));
843 ovs_assert(pd
== -1);
844 ovs_assert(pd2
== 23);
845 ovs_assert(ovs_scan("0123", "%2td %td", &pd
, &pd2
));
847 ovs_assert(pd2
== 23);
849 ovs_assert(ovs_scan("123", "%zd", &sz
));
850 ovs_assert(sz
== 123);
851 ovs_assert(ovs_scan("0", "%zd", &sz
));
853 ovs_assert(!ovs_scan("123", "%zd%zd", &sz
, &sz2
));
854 ovs_assert(ovs_scan("+123", "%zd", &sz
));
855 ovs_assert(sz
== 123);
856 ovs_assert(ovs_scan("-123", "%zd", &sz
));
857 ovs_assert(sz
== -123);
858 ovs_assert(ovs_scan("0123", "%zd", &sz
));
859 ovs_assert(sz
== 123);
860 ovs_assert(ovs_scan(" 123", "%zd", &sz
));
861 ovs_assert(sz
== 123);
862 ovs_assert(ovs_scan("0x123", "%zd", &sz
));
864 ovs_assert(ovs_scan("123", "%2zd %zd", &sz
, &sz2
));
865 ovs_assert(sz
== 12);
866 ovs_assert(sz2
== 3);
867 ovs_assert(ovs_scan("+123", "%2zd %zd", &sz
, &sz2
));
869 ovs_assert(sz2
== 23);
870 ovs_assert(ovs_scan("-123", "%2zd %zd", &sz
, &sz2
));
871 ovs_assert(sz
== -1);
872 ovs_assert(sz2
== 23);
873 ovs_assert(ovs_scan("0123", "%2zd %zd", &sz
, &sz2
));
875 ovs_assert(sz2
== 23);
877 ovs_assert(ovs_scan("0.25", "%f", &f
));
878 ovs_assert(f
== 0.25);
879 ovs_assert(ovs_scan("1.0", "%f", &f
));
880 ovs_assert(f
== 1.0);
881 ovs_assert(ovs_scan("-5", "%f", &f
));
882 ovs_assert(f
== -5.0);
883 ovs_assert(ovs_scan("+6", "%f", &f
));
884 ovs_assert(f
== 6.0);
885 ovs_assert(ovs_scan("-1e5", "%f", &f
));
886 ovs_assert(f
== -1e5
);
887 ovs_assert(ovs_scan("-.25", "%f", &f
));
888 ovs_assert(f
== -.25);
889 ovs_assert(ovs_scan("+123.e1", "%f", &f
));
890 ovs_assert(f
== 1230.0);
891 ovs_assert(ovs_scan("25e-2", "%f", &f
));
892 ovs_assert(f
== 0.25);
893 ovs_assert(ovs_scan("0.25", "%1f %f", &f
, &f2
));
895 ovs_assert(f2
== 0.25);
896 ovs_assert(ovs_scan("1.0", "%2f %f", &f
, &f2
));
897 ovs_assert(f
== 1.0);
898 ovs_assert(f2
== 0.0);
899 ovs_assert(!ovs_scan("-5", "%1f", &f
));
900 ovs_assert(!ovs_scan("+6", "%1f", &f
));
901 ovs_assert(!ovs_scan("-1e5", "%2f %*f", &f
));
903 ovs_assert(!ovs_scan("-.25", "%2f", &f
));
904 ovs_assert(!ovs_scan("+123.e1", "%6f", &f
));
905 ovs_assert(!ovs_scan("25e-2", "%4f", &f
));
907 ovs_assert(ovs_scan("0.25", "%lf", &d
));
908 ovs_assert(d
== 0.25);
909 ovs_assert(ovs_scan("1.0", "%lf", &d
));
910 ovs_assert(d
== 1.0);
911 ovs_assert(ovs_scan("-5", "%lf", &d
));
912 ovs_assert(d
== -5.0);
913 ovs_assert(ovs_scan("+6", "%lf", &d
));
914 ovs_assert(d
== 6.0);
915 ovs_assert(ovs_scan("-1e5", "%lf", &d
));
916 ovs_assert(d
== -1e5
);
917 ovs_assert(ovs_scan("-.25", "%lf", &d
));
918 ovs_assert(d
== -.25);
919 ovs_assert(ovs_scan("+123.e1", "%lf", &d
));
920 ovs_assert(d
== 1230.0);
921 ovs_assert(ovs_scan("25e-2", "%lf", &d
));
922 ovs_assert(d
== 0.25);
923 ovs_assert(ovs_scan("0.25", "%1lf %lf", &d
, &d2
));
925 ovs_assert(d2
== 0.25);
926 ovs_assert(ovs_scan("1.0", "%2lf %lf", &d
, &d2
));
927 ovs_assert(d
== 1.0);
928 ovs_assert(d2
== 0.0);
929 ovs_assert(!ovs_scan("-5", "%1lf", &d
));
930 ovs_assert(!ovs_scan("+6", "%1lf", &d
));
931 ovs_assert(!ovs_scan("-1e5", "%2lf %*f", &d
));
933 ovs_assert(!ovs_scan("-.25", "%2lf", &d
));
934 ovs_assert(!ovs_scan("+123.e1", "%6lf", &d
));
935 ovs_assert(!ovs_scan("25e-2", "%4lf", &d
));
937 ovs_assert(ovs_scan("0.25", "%Lf", &ld
));
938 ovs_assert(ld
== 0.25);
939 ovs_assert(ovs_scan("1.0", "%Lf", &ld
));
940 ovs_assert(ld
== 1.0);
941 ovs_assert(ovs_scan("-5", "%Lf", &ld
));
942 ovs_assert(ld
== -5.0);
943 ovs_assert(ovs_scan("+6", "%Lf", &ld
));
944 ovs_assert(ld
== 6.0);
945 ovs_assert(ovs_scan("-1e5", "%Lf", &ld
));
946 ovs_assert(ld
== -1e5
);
947 ovs_assert(ovs_scan("-.25", "%Lf", &ld
));
948 ovs_assert(ld
== -.25);
949 ovs_assert(ovs_scan("+123.e1", "%Lf", &ld
));
950 ovs_assert(ld
== 1230.0);
951 ovs_assert(ovs_scan("25e-2", "%Lf", &ld
));
952 ovs_assert(ld
== 0.25);
953 ovs_assert(ovs_scan("0.25", "%1Lf %Lf", &ld
, &ld2
));
955 ovs_assert(ld2
== 0.25);
956 ovs_assert(ovs_scan("1.0", "%2Lf %Lf", &ld
, &ld2
));
957 ovs_assert(ld
== 1.0);
958 ovs_assert(ld2
== 0.0);
959 ovs_assert(!ovs_scan("-5", "%1Lf", &ld
));
960 ovs_assert(!ovs_scan("+6", "%1Lf", &ld
));
961 ovs_assert(!ovs_scan("-1e5", "%2Lf %*f", &ld
));
962 ovs_assert(ld
== -1);
963 ovs_assert(!ovs_scan("-.25", "%2Lf", &ld
));
964 ovs_assert(!ovs_scan("+123.e1", "%6Lf", &ld
));
965 ovs_assert(!ovs_scan("25e-2", "%4Lf", &ld
));
967 ovs_assert(ovs_scan(" Hello,\tworld ", "%*s%n%*s%n", &n
, &n2
));
969 ovs_assert(n2
== 13);
970 ovs_assert(!ovs_scan(" Hello,\tworld ", "%*s%*s%*s"));
971 ovs_assert(ovs_scan(" Hello,\tworld ", "%6s%n%5s%n", str
, &n
, str2
, &n2
));
972 ovs_assert(!strcmp(str
, "Hello,"));
974 ovs_assert(!strcmp(str2
, "world"));
975 ovs_assert(n2
== 13);
976 ovs_assert(ovs_scan(" Hello,\tworld ", "%5s%5s%5s", str
, str2
, str3
));
977 ovs_assert(!strcmp(str
, "Hello"));
978 ovs_assert(!strcmp(str2
, ","));
979 ovs_assert(!strcmp(str3
, "world"));
980 ovs_assert(!ovs_scan(" ", "%*s"));
982 ovs_assert(ovs_scan(" Hello,\tworld ", "%*c%n%*c%n%c%n",
986 ovs_assert(c
== 'e');
988 ovs_assert(ovs_scan(" Hello,\tworld ", "%*5c%5c", str
));
989 ovs_assert(!memcmp(str
, "o,\two", 5));
990 ovs_assert(!ovs_scan(" Hello,\tworld ", "%*15c"));
992 ovs_assert(ovs_scan("0x1234xyzzy", "%9[x0-9a-fA-F]%n", str
, &n
));
993 ovs_assert(!strcmp(str
, "0x1234x"));
995 ovs_assert(ovs_scan("foo:bar=baz", "%5[^:=]%n:%5[^:=]%n=%5[^:=]%n",
996 str
, &n
, str2
, &n2
, str3
, &n3
));
997 ovs_assert(!strcmp(str
, "foo"));
999 ovs_assert(!strcmp(str2
, "bar"));
1000 ovs_assert(n2
== 7);
1001 ovs_assert(!strcmp(str3
, "baz"));
1002 ovs_assert(n3
== 11);
1003 ovs_assert(!ovs_scan(" ", "%*[0-9]"));
1004 ovs_assert(ovs_scan("0x123a]4xyzzy-", "%[]x0-9a-fA-F]", str
));
1005 ovs_assert(!strcmp(str
, "0x123a]4x"));
1006 ovs_assert(ovs_scan("abc]xyz","%[^]xyz]", str
));
1007 ovs_assert(!strcmp(str
, "abc"));
1008 ovs_assert(!ovs_scan("0x123a]4xyzzy-", "%[x0-9]a-fA-F]", str
));
1009 ovs_assert(ovs_scan("0x12-3]xyz", "%[x0-9a-f-]", str
));
1010 ovs_assert(!strcmp(str
, "0x12-3"));
1011 ovs_assert(ovs_scan("0x12-3]xyz", "%[^a-f-]", str
));
1012 ovs_assert(!strcmp(str
, "0x12"));
1013 ovs_assert(sscanf("0x12-3]xyz", "%[^-a-f]", str
));
1014 ovs_assert(!strcmp(str
, "0x12"));
1018 test_snprintf(int argc OVS_UNUSED
, char *argv
[] OVS_UNUSED
)
1022 ovs_assert(snprintf(s
, 4, "abcde") == 5);
1023 ovs_assert(!strcmp(s
, "abc"));
1025 ovs_assert(snprintf(s
, 5, "abcde") == 5);
1026 ovs_assert(!strcmp(s
, "abcd"));
1028 ovs_assert(snprintf(s
, 6, "abcde") == 5);
1029 ovs_assert(!strcmp(s
, "abcde"));
1031 ovs_assert(snprintf(NULL
, 0, "abcde") == 5);
1034 static const struct command commands
[] = {
1035 {"ctz", 0, 0, test_ctz
},
1036 {"clz", 0, 0, test_clz
},
1037 {"round_up_pow2", 0, 0, test_round_up_pow2
},
1038 {"round_down_pow2", 0, 0, test_round_down_pow2
},
1039 {"count_1bits", 0, 0, test_count_1bits
},
1040 {"log_2_floor", 0, 0, test_log_2_floor
},
1041 {"bitwise_copy", 0, 0, test_bitwise_copy
},
1042 {"bitwise_zero", 0, 0, test_bitwise_zero
},
1043 {"bitwise_one", 0, 0, test_bitwise_one
},
1044 {"bitwise_is_all_zeros", 0, 0, test_bitwise_is_all_zeros
},
1045 {"follow-symlinks", 1, INT_MAX
, test_follow_symlinks
},
1046 {"assert", 0, 0, test_assert
},
1047 {"ovs_scan", 0, 0, test_ovs_scan
},
1048 {"snprintf", 0, 0, test_snprintf
},
1053 parse_options(int argc
, char *argv
[])
1058 static const struct option long_options
[] = {
1062 char *short_options
= long_options_to_short_options(long_options
);
1065 int c
= getopt_long(argc
, argv
, short_options
, long_options
, NULL
);
1071 VLOG_OPTION_HANDLERS
1080 free(short_options
);
1084 main(int argc
, char *argv
[])
1086 set_program_name(argv
[0]);
1087 parse_options(argc
, argv
);
1088 run_command(argc
- optind
, argv
+ optind
, commands
);