mem: Implement memrchr()

[ccan] / ccan / mem / test / api.c

diff --git a/ccan/mem/test/api.c b/ccan/mem/test/api.c
index a7cfb9a11737b9048727dd12d15ba9d8d6851f3f..2ee15c58e37f15aab439655648aa22b6655ccba9 100644 (file)
--- a/ccan/mem/test/api.c
+++ b/ccan/mem/test/api.c
@@ -10,7 +10,7 @@ int main(void)
        char needle2[] = "d\0e";
 
        /* This is how many tests you plan to run */
-       plan_tests(5);
+       plan_tests(19);
 
        ok1(memmem(haystack1, sizeof(haystack1), needle1, 2) == haystack1);
        ok1(memmem(haystack1, sizeof(haystack1), needle1, 3) == NULL);
@@ -20,6 +20,23 @@ int main(void)
            == haystack2);
        ok1(memmem(haystack2, sizeof(haystack2), needle2, 3) == NULL);
 
+       ok1(memrchr(haystack1, 'a', sizeof(haystack1)) == haystack1);
+       ok1(memrchr(haystack1, 'b', sizeof(haystack1)) == haystack1 + 1);
+       ok1(memrchr(haystack1, 'c', sizeof(haystack1)) == haystack1 + 2);
+       ok1(memrchr(haystack1, 'd', sizeof(haystack1)) == haystack1 + 3);
+       ok1(memrchr(haystack1, 'e', sizeof(haystack1)) == haystack1 + 5);
+       ok1(memrchr(haystack1, 'f', sizeof(haystack1)) == haystack1 + 6);
+       ok1(memrchr(haystack1, 'g', sizeof(haystack1)) == haystack1 + 7);
+       ok1(memrchr(haystack1, 'h', sizeof(haystack1)) == haystack1 + 8);
+       ok1(memrchr(haystack1, '\0', sizeof(haystack1)) == haystack1 + 9);
+       ok1(memrchr(haystack1, 'i', sizeof(haystack1)) == NULL);
+
+       ok1(memrchr(haystack2, 'a', sizeof(haystack2)) == haystack2 + 9);
+       ok1(memrchr(haystack2, 'b', sizeof(haystack2)) == haystack2 + 10);
+       ok1(memrchr(haystack2, '\0', sizeof(haystack2)) == haystack2 + 11);
+
+       ok1(memrchr(needle1, '\0', 2) == NULL);
+
        /* This exits depending on whether all tests passed */
        return exit_status();
 }