28 	char *buf;  in main()  local
33 	buf = malloc(bufsize);  in main()
34 	if (buf == NULL) {  in main()
39 	memset(buf, 0, bufsize);  in main()
40 	assert(strchr(buf, 'a') == NULL);  in main()
41 	assert(strchr(buf, '\0') == buf);  in main()
42 	assert(strrchr(buf, 'a') == NULL);  in main()
43 	assert(strrchr(buf, '\0') == buf);  in main()
45 	memcpy(buf, "haystack\xcf\x80", 10);  in main()
46 	assert(strchr(buf, 'a') == buf + 1);  in main()
47 	assert(strchr(buf, '\x80') == buf + 9);  in main()
48 	assert(strchr(buf, 0x180) == buf + 9);  in main()
49 	assert(strchr(buf, '\0') == buf + 10);  in main()
50 	assert(strrchr(buf, 'a') == buf + 5);  in main()
51 	assert(strrchr(buf, '\xcf') == buf + 8);  in main()
52 	assert(strrchr(buf, 0x3cf) == buf + 8);  in main()
53 	assert(strrchr(buf, '\0') == buf + 10);  in main()
55 	memset(buf, 'a', bufsize - 2);  in main()
56 	buf[0] = 'b';  in main()
57 	buf[bufsize - 2] = 'b';  in main()
58 	assert(strchr(buf, 'b') == buf);  in main()
59 	assert(strchr(buf, 'c') == NULL);  in main()
60 	assert(strchr(buf, '\0') == buf + bufsize - 1);  in main()
61 	assert(strrchr(buf, 'b') == buf + bufsize - 2);  in main()
62 	assert(strrchr(buf, 'c') == NULL);  in main()
63 	assert(strrchr(buf, '\0') == buf + bufsize - 1);  in main()