diff --git a/is_full.c b/is_full.c
new file mode 100644
index 0000000000000000000000000000000000000000..a2698551a98572c24bcd8eb5e83194de5f6a0559
--- /dev/null
+++ b/is_full.c
@@ -0,0 +1,7 @@
+bool is_full(queue q){
+	bool ret = false;
+    if(q.tail == q.capacity){
+        ret = true;
+    }
+    return ret;
+}