1 #include <ccan/htable/htable.h>
2 #include <ccan/htable/htable.c>
3 #include <ccan/tap/tap.h>
4 #include <stdbool.h>
5 #include <string.h>
6 
7 #define NUM_VALS 512
8 
9 /* We use the number divided by two as the hash (for lots of
10    collisions). */
hash(const void * elem,void * unused UNNEEDED)11 static size_t hash(const void *elem, void *unused UNNEEDED)
12 {
13 	size_t h = *(uint64_t *)elem / 2;
14 	return h;
15 }
16 
main(void)17 int main(void)
18 {
19 	struct htable ht;
20 	uint64_t val[NUM_VALS];
21 	unsigned int i;
22 
23 	plan_tests((NUM_VALS) * 2);
24 	for (i = 0; i < NUM_VALS; i++)
25 		val[i] = i;
26 
27 	htable_init(&ht, hash, NULL);
28 	for (i = 0; i < NUM_VALS; i++) {
29 		ok1(ht_max(&ht) >= i);
30 		ok1(ht_max(&ht) <= i * 2);
31 		htable_add(&ht, hash(&val[i], NULL), &val[i]);
32 	}
33 	htable_clear(&ht);
34 
35 	return exit_status();
36 }
37