Added hashtable header.

src/include/htab.h

@@ -0,0 +1,26 @@
+#ifndef HTAB_H
+#define HTAB_H
+
+#include <stddef.h>
+#define HTAB_SPACE 128
+
+// Hash Table.
+typedef struct {} HTab;
+
+// Create a new hash table.
+HTab* htab_init();
+// Destroy a hash table.
+void htab_destroy(HTab* htab);
+
+// Get element at `hash`. Return its contents, or NULL if nothing found.
+void* htab_get(HTab* htab, int hash);
+
+// Insert `data` at index `hash`.
+void htab_ins(HTab* htab, int key, void* data);
+
+// Gets the length of the hash table.
+size_t htab_ln(HTab* htab);
+
+
+
+#endif