1 /* vi: set sw=4 ts=4: */
5 * Copyright (C) 2008 Bernhard Fischer
7 * Licensed under GPLv2 or later, see file License in this tarball for details.
14 * The strrstr() function finds the last occurrence of the substring needle
15 * in the string haystack. The terminating nul characters are not compared.
17 char* strrstr(const char *haystack, const char *needle)
24 char *p = strstr(haystack, needle);
32 #ifdef __DO_STRRSTR_TEST
34 int main(int argc, char **argv)
40 ret |= !(n = ((tmp = strrstr("baaabaaab", "aaa")) != NULL && strcmp(tmp, "aaab") == 0));
41 printf("'baaabaaab' vs. 'aaa' : %s\n", n ? "PASSED" : "FAILED");
43 ret |= !(n = ((tmp = strrstr("baaabaaaab", "aaa")) != NULL && strcmp(tmp, "aaab") == 0));
44 printf("'baaabaaaab' vs. 'aaa' : %s\n", n ? "PASSED" : "FAILED");
46 ret |= !(n = ((tmp = strrstr("baaabaab", "aaa")) != NULL && strcmp(tmp, "aaabaab") == 0));
47 printf("'baaabaab' vs. 'aaa' : %s\n", n ? "PASSED" : "FAILED");
49 ret |= !(n = (strrstr("aaa", "aaa") != NULL));
50 printf("'aaa' vs. 'aaa' : %s\n", n ? "PASSED" : "FAILED");
52 ret |= !(n = (strrstr("aaa", "a") != NULL));
53 printf("'aaa' vs. 'a' : %s\n", n ? "PASSED" : "FAILED");
55 ret |= !(n = (strrstr("aaa", "bbb") == NULL));
56 printf("'aaa' vs. 'bbb' : %s\n", n ? "PASSED" : "FAILED");
58 ret |= !(n = (strrstr("a", "aaa") == NULL));
59 printf("'a' vs. 'aaa' : %s\n", n ? "PASSED" : "FAILED");
61 ret |= !(n = ((tmp = strrstr("aaa", "")) != NULL && strcmp(tmp, "aaa") == 0));
62 printf("'aaa' vs. '' : %s\n", n ? "FAILED" : "PASSED");
64 ret |= !(n = (strrstr("", "aaa") == NULL));
65 printf("'' vs. 'aaa' : %s\n", n ? "PASSED" : "FAILED");
67 ret |= !(n = ((tmp = strrstr("", "")) != NULL && strcmp(tmp, "") == 0));
68 printf("'' vs. '' : %s\n", n ? "PASSED" : "FAILED");
70 /*ret |= !(n = (strrstr(NULL, NULL) == NULL));
71 printf("'NULL' vs. 'NULL' : %s\n", n ? "PASSED" : "FAILED");
72 ret |= !(n = (strrstr("", NULL) == NULL));
73 printf("'' vs. 'NULL' : %s\n", n ? "PASSED" : "FAILED");
74 ret |= !(n = (strrstr(NULL, "") == NULL));
75 printf("'NULL' vs. '' : %s\n", n ? "PASSED" : "FAILED");
76 ret |= !(n = (strrstr("aaa", NULL) == NULL));
77 printf("'aaa' vs. 'NULL' : %s\n", n ? "PASSED" : "FAILED");
78 ret |= !(n = (strrstr(NULL, "aaa") == NULL));
79 printf("'NULL' vs. 'aaa' : %s\n", n ? "PASSED" : "FAILED");*/