add #pragma once for SendableMsg.hpp

IronsDu · IronsDu · commit 5af170c264a7 · 2022-07-21T13:42:28.000+08:00
diff --git a/include/brynet/net/SendableMsg.hpp b/include/brynet/net/SendableMsg.hpp
@@ -1,3 +1,5 @@
+#pragma once
+
 #include <memory>
 #include <string>
 
