Update dict.c

TheAlgorithms · May 29, 2024 · 9e688b8 · 9e688b8
1 parent e5dad3f
commit 9e688b8
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/data_structures/dictionary/dict.c b/data_structures/dictionary/dict.c
@@ -51,7 +51,7 @@ int add_item_label(Dictionary *dic, char label[], void *item)
     unsigned int index = get_hash(label);
 
     /* make sure index is fitting */
-    if (index < MAXELEMENTS)
+    if (index < MAXELEMENTS && dic->elements[index] == NULL)
     {
         dic->elements[index] = item;
         return 0;
@@ -97,4 +97,4 @@ void *get_element_index(Dictionary *dict, int index)
     return NULL;
 }
 
-void destroy(Dictionary *dict) { free(dict); }
+void destroy(Dictionary *dict) { free(dict); }