1#include <string.h>
2#include "test.h"
3
4#define N(s, sub) { \
5	char *p = s; \
6	char *q = strstr(p, sub); \
7	if (q) \
8		t_error("strstr(%s,%s) returned str+%d, wanted 0\n", #s, #sub, q-p); \
9}
10
11#define T(s, sub, n) { \
12	char *p = s; \
13	char *q = strstr(p, sub); \
14	if (q == 0) \
15		t_error("strstr(%s,%s) returned 0, wanted str+%d\n", #s, #sub, n); \
16	else if (q - p != n) \
17		t_error("strstr(%s,%s) returned str+%d, wanted str+%d\n", #s, #sub, q-p, n); \
18}
19
20int main(void)
21{
22	N("", "a")
23	N("a", "aa")
24	N("a", "b")
25	N("aa", "ab")
26	N("aa", "aaa")
27	N("abba", "aba")
28	N("abc abc", "abcd")
29	N("0-1-2-3-4-5-6-7-8-9", "-3-4-56-7-8-")
30	N("0-1-2-3-4-5-6-7-8-9", "-3-4-5+6-7-8-")
31	N("_ _ _\xff_ _ _", "_\x7f_")
32	N("_ _ _\x7f_ _ _", "_\xff_")
33
34	T("", "", 0)
35	T("abcd", "", 0)
36	T("abcd", "a", 0)
37	T("abcd", "b", 1)
38	T("abcd", "c", 2)
39	T("abcd", "d", 3)
40	T("abcd", "ab", 0)
41	T("abcd", "bc", 1)
42	T("abcd", "cd", 2)
43	T("ababa", "baba", 1)
44	T("ababab", "babab", 1)
45	T("abababa", "bababa", 1)
46	T("abababab", "bababab", 1)
47	T("ababababa", "babababa", 1)
48	T("abbababab", "bababa", 2)
49	T("abbababab", "ababab", 3)
50	T("abacabcabcab", "abcabcab", 4)
51	T("nanabanabanana", "aba", 3)
52	T("nanabanabanana", "ban", 4)
53	T("nanabanabanana", "anab", 1)
54	T("nanabanabanana", "banana", 8)
55	T("_ _\xff_ _", "_\xff_", 2)
56
57	return t_status;
58}
59