Add priority queue

include/htd/data_structure/priority_queue.h

@@ -0,0 +1,23 @@
+#ifndef PRIORITY_QUEUE_H
+#define PRIORITY_QUEUE_H
+
+#include <htd/primitives/primitives.h>
+
+typedef struct {
+    void* data;
+
+    isize (*compare)(void*, void*);
+    usize data_size; 
+    usize capacity;
+    usize len;
+} PriorityQueue;
+
+void prioq_init(PriorityQueue* prioq, usize data_size, isize (*compare)(void*, void*));
+
+void prioq_push(PriorityQueue* prioq, void* data);
+
+void prioq_pop(PriorityQueue* prioq, void* val);
+
+void prioq_free(PriorityQueue* prioq);
+
+#endif // PRIORITY_QUEUE_H