Comments

1 files changed, 4 insertions, 2 deletions

diff --git a/priority_queue.h b/priority_queue.h
index 8ad4a26..0811205 100644
--- a/priority_queue.h
+++ b/priority_queue.h
@@ -17,18 +17,20 @@ PositionPQ *ppq_new(Position pos, size_t priority);
 
 /* Insert a pos with priority into a given PositionPQ */
 #define PPQ_INSERT_SUCCESS 0
-#define PPQ_INSERT_NEW 1 /* ppq was NULL, created a new one */
+#define PPQ_INSERT_NEW 1     /* ppq was NULL, created a new one */
 #define PPQ_INSERT_ALREADY 2 /* pos is already in ppq */
 int ppq_insert(PositionPQ **ppq, Position pos, size_t priority);
 
 /* Remove and return the position with the lowest priority */
 Position ppq_pop(PositionPQ **ppq);
 
-/* Remove a given pos fron ppq */
+/* Remove a given pos fron ppq, used in ppq_insert() to avoid dups */
 void ppq_remove(PositionPQ **ppq, Position pos);
 
+/* Debug function, prints the contents of ppq to stdout */
 void ppq_print(PositionPQ *ppq);
 
+/* Frees the memory allocated for ppq */
 void ppq_free(PositionPQ *ppq);
 
 #endif /* PRIORITY_QUEUE_H_ */