diff options
Diffstat (limited to 'hash_table.h')
| -rw-r--r-- | hash_table.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/hash_table.h b/hash_table.h index ffa3ec7..9afb4cd 100644 --- a/hash_table.h +++ b/hash_table.h @@ -60,3 +60,13 @@ struct hash_entry *hash_table_next_entry(struct hash_table *ht, struct hash_entry * hash_table_random_entry(struct hash_table *ht, int (*predicate)(struct hash_entry *entry)); + +/** + * This foreach function is safe against deletion (which just replaces + * an entry's data with the deleted marker), but not against insertion + * (which may rehash the table, making entry a dangling pointer). + */ +#define hash_table_foreach(ht, entry) \ + for (entry = hash_table_next_entry(ht, NULL); \ + entry != NULL; \ + entry = hash_table_next_entry(ht, entry)) |