1 #include <ccan/mem/mem.h>
2 #include <ccan/tap/tap.h>
6 char haystack1[] = "abcd\0efgh";
7 char haystack2[] = "ab\0ab\0ab\0ab";
9 char needle2[] = "d\0e";
10 char scan1[] = "aaaab";
11 char scan2[] = "\0\0\0b";
13 /* This is how many tests you plan to run */
16 ok1(memmem(haystack1, sizeof(haystack1), needle1, 2) == haystack1);
17 ok1(memmem(haystack1, sizeof(haystack1), needle1, 3) == NULL);
18 ok1(memmem(haystack1, sizeof(haystack1), needle2, 3) == (haystack1 + 3));
20 ok1(memmem(haystack2, sizeof(haystack2), needle1, sizeof(needle1))
22 ok1(memmem(haystack2, sizeof(haystack2), needle2, 3) == NULL);
24 ok1(memrchr(haystack1, 'a', sizeof(haystack1)) == haystack1);
25 ok1(memrchr(haystack1, 'b', sizeof(haystack1)) == haystack1 + 1);
26 ok1(memrchr(haystack1, 'c', sizeof(haystack1)) == haystack1 + 2);
27 ok1(memrchr(haystack1, 'd', sizeof(haystack1)) == haystack1 + 3);
28 ok1(memrchr(haystack1, 'e', sizeof(haystack1)) == haystack1 + 5);
29 ok1(memrchr(haystack1, 'f', sizeof(haystack1)) == haystack1 + 6);
30 ok1(memrchr(haystack1, 'g', sizeof(haystack1)) == haystack1 + 7);
31 ok1(memrchr(haystack1, 'h', sizeof(haystack1)) == haystack1 + 8);
32 ok1(memrchr(haystack1, '\0', sizeof(haystack1)) == haystack1 + 9);
33 ok1(memrchr(haystack1, 'i', sizeof(haystack1)) == NULL);
35 ok1(memrchr(haystack2, 'a', sizeof(haystack2)) == haystack2 + 9);
36 ok1(memrchr(haystack2, 'b', sizeof(haystack2)) == haystack2 + 10);
37 ok1(memrchr(haystack2, '\0', sizeof(haystack2)) == haystack2 + 11);
39 ok1(memrchr(needle1, '\0', 2) == NULL);
41 #define S(x) (x), sizeof(x) - 1
42 ok1(mempbrkm(S(haystack1), S("\0efgh")) == haystack1 + 4);
43 ok1(mempbrkm(S(haystack1), S("jklmn")) == NULL);
44 ok1(mempbrkm(S(haystack1), S("sd\0a")) == haystack1 + 0);
46 ok1(mempbrk(haystack1, sizeof(haystack1), "bcd\0a") == haystack1 + 1);
47 ok1(mempbrk(haystack1, sizeof(haystack1), "\0") == NULL);
49 ok1(memcchr(scan1, 'a', sizeof(scan1)) == scan1 + 4);
50 ok1(memcchr(scan1, 'b', sizeof(scan1)) == scan1);
51 ok1(memcchr(scan2, '\0', sizeof(scan2)) == scan2 + 3);
52 ok1(memcchr(scan2, '\0', sizeof(scan2) - 2) == NULL);
54 ok1(memeq(haystack1, sizeof(haystack1), haystack1, sizeof(haystack1)));
55 ok1(!memeq(haystack1, sizeof(haystack1), haystack2, sizeof(haystack2)));
57 ok1(memeqstr(scan1, sizeof(scan1) - 1, scan1));
58 ok1(!memeqstr(scan1, sizeof(scan1), scan1));
59 ok1(!memeqstr(scan1, sizeof(scan1), "aaaa"));
61 ok1(memstarts(S("a\0bcdef"), S("a\0bc")));
62 ok1(!memstarts(S("a\0bcdef"), S("a\0bcG")));
63 ok1(!memstarts(S("a\0bcdef"), S("a\0bcdefg")));
65 ok1(memstarts_str(scan1, sizeof(scan1), scan1));
66 ok1(!memstarts_str(scan1, sizeof(scan1), "ab"));
68 ok1(memends(S("abcdef"), S("abcdef")));
69 ok1(!memends(S("abcdef"), S("abcdefg")));
70 ok1(!memends(S("a\0bcdef"), S("a\0b")));
71 ok1(memends(S("a\0bcdef"), S("ef")));
73 ok1(memends_str(S("abcdef"), "abcdef"));
74 ok1(!memends_str(S("abcde\0f"), "d\0f"));
75 ok1(!memends_str(S("a\0bcdef"), "a"));
76 ok1(memends_str(S("a\0bcdef"), "ef"));
78 ok1(!memoverlaps(haystack1, sizeof(haystack1),
79 haystack2, sizeof(haystack2)));
80 ok1(!memoverlaps(haystack2, sizeof(haystack2),
81 haystack1, sizeof(haystack1)));
82 ok1(memoverlaps(haystack1, sizeof(haystack1), haystack1, 1));
83 ok1(memoverlaps(haystack1, 1, haystack1, sizeof(haystack1)));
84 ok1(memoverlaps(haystack1, sizeof(haystack1),
85 haystack1 + sizeof(haystack1) - 1, 1));
86 ok1(memoverlaps(haystack1 + sizeof(haystack1) - 1, 1,
87 haystack1, sizeof(haystack1)));
88 ok1(!memoverlaps(haystack1, sizeof(haystack1),
89 haystack1 + sizeof(haystack1), 1));
90 ok1(!memoverlaps(haystack1 + sizeof(haystack1), 1,
91 haystack1, sizeof(haystack1)));
92 ok1(!memoverlaps(haystack1, sizeof(haystack1), haystack1 - 1, 1));
93 ok1(!memoverlaps(haystack1 - 1, 1, haystack1, sizeof(haystack1)));
94 ok1(memoverlaps(haystack1, 5, haystack1 + 4, 7));
95 ok1(!memoverlaps(haystack1, 5, haystack1 + 5, 6));
96 ok1(memoverlaps(haystack1 + 4, 7, haystack1, 5));
97 ok1(!memoverlaps(haystack1 + 5, 6, haystack1, 5));
99 /* This exits depending on whether all tests passed */
100 return exit_status();