Add helper macro that defines enum flag operators.

Author: Pavel Kovalenko

src/common/Util.hpp

@@ -0,0 +1,7 @@
+#pragma once
+
+#define IMPLEMENT_ENUM_FLAG_OPERATORS(TEnum, TBaseType) \
+    inline TEnum operator|(TEnum a, TEnum b) { return (TEnum)((TBaseType)a | (TBaseType)b); } \
+    inline TEnum operator&(TEnum a, TEnum b) { return (TEnum)((TBaseType)a & (TBaseType)b); } \
+    inline TEnum& operator|=(TEnum& a, TEnum b) { return a = a | b; } \
+    inline TEnum& operator&=(TEnum& a, TEnum b) { return a = a & b; }