fix: examples

examples/queue/q1.c

@@ -5,7 +5,7 @@
 int main(void) {
 	/* Allocate a new queue */
 	/* Always remember to check return values */
-	mcl_queue *queue = mcl_queue_init(3, sizeof(int));
+	mcl_queue_s *queue = mcl_queue_init(3, sizeof(int));
 
 	int val, out;
 
@@ -17,25 +17,26 @@ int main(void) {
 	mcl_queue_push(queue, &val);
 
 	/* Retrieve values */
-	int front = *((int *)mcl_queue_get_front(queue));
-	int rear = *((int *)mcl_queue_get_rear(queue));
+	int front, rear;
+	mcl_queue_get_front(queue, &front);
+	mcl_queue_get_rear(queue, &rear);
 	printf("Front: %d, Rear: %d\n", front, rear);
 
 	/* Remove an element from the buffer */
 	mcl_queue_pop(queue, &out);
 	printf("Pop: %d\n", out);
 
-	front = *((int *)mcl_queue_get_front(queue));
+	mcl_queue_get_front(queue, &front);
 	printf("Front after pop: %d\n", front);
 
 	val = 3;
 	mcl_queue_push(queue, &val);
 
-	rear = *((int *)mcl_queue_get_rear(queue));
+	mcl_queue_get_rear(queue, &rear);
 	printf("Rear after push 3: %d\n", rear);
 
 	val = 4;
-	int res = mcl_queue_push(queue, &val);
+	mcl_queue_push(queue, &val);
 
 	/* Clear queue */
 	while (mcl_queue_pop(queue, &out) == 0) {