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-rw-r--r--priority_queue.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/priority_queue.h b/priority_queue.h
index 1f933e7..2ac580e 100644
--- a/priority_queue.h
+++ b/priority_queue.h
@@ -19,7 +19,7 @@ typedef struct PositionPQNode_s PositionPQ;
PositionPQ *ppq_new(Position pos, size_t priority);
/* Insert a pos with priority into a given PositionPQ */
-void ppq_insert(PositionPQ **ppq, Position pos, size_t priority);
+int ppq_insert(PositionPQ **ppq, Position pos, size_t priority);
/* Remove and return the position with the lowest priority */
Position ppq_pop(PositionPQ **ppq);