stuff

1 files changed, 18 insertions, 0 deletions

diff --git a/src/hash.h b/src/hash.h
new file mode 100644
index 0000000..7713885
--- /dev/null
+++ b/src/hash.h
@@ -0,0 +1,18 @@
+#include <stddef.h>
+#include <stdlib.h>
+
+/* simple, generic hash map implementation */
+
+unsigned hash_djb(const char*);
+
+void *hash_init(size_t tabsz, unsigned (*hash_fn)(const void*),
+                int (*compare_key)(const void*, const void*));
+
+void hash_free(void*);
+
+/* insert a pair, returns null if not already found, otherwise
+   return the existing data pointer */
+void *hash_insert(void*, const void *key, const void *data);
+
+/* returns NULL if not found */
+void *hash_lookup(void*, const void *key);