diff options
Diffstat (limited to 'lib/hash.c')
-rw-r--r-- | lib/hash.c | 5 |
1 files changed, 3 insertions, 2 deletions
@@ -31,6 +31,7 @@ hash_create_size (unsigned int size, unsigned int (*hash_key) (void *), { struct hash *hash; + assert ((size & (size-1)) == 0); hash = XMALLOC (MTYPE_HASH, sizeof (struct hash)); hash->index = XCALLOC (MTYPE_HASH_INDEX, sizeof (struct hash_backet *) * size); @@ -71,7 +72,7 @@ hash_get (struct hash *hash, void *data, void * (*alloc_func) (void *)) struct hash_backet *backet; key = (*hash->hash_key) (data); - index = key % hash->size; + index = key & (hash->size - 1); for (backet = hash->index[index]; backet != NULL; backet = backet->next) if (backet->key == key && (*hash->hash_cmp) (backet->data, data)) @@ -125,7 +126,7 @@ hash_release (struct hash *hash, void *data) struct hash_backet *pp; key = (*hash->hash_key) (data); - index = key % hash->size; + index = key & (hash->size - 1); for (backet = pp = hash->index[index]; backet; backet = backet->next) { |