fix gcc & cl warning

include/rapidjson/cursorstreamwrapper.h

@@ -17,6 +17,17 @@
 
 #include "stream.h"
 
+#if defined(__GNUC__)
+RAPIDJSON_DIAG_PUSH
+RAPIDJSON_DIAG_OFF(effc++)
+#endif
+
+#if defined(_MSC_VER) && _MSC_VER <= 1800
+RAPIDJSON_DIAG_PUSH
+RAPIDJSON_DIAG_OFF(4702)  // unreachable code
+RAPIDJSON_DIAG_OFF(4512)  // assignment operator could not be generated
+#endif
+
 RAPIDJSON_NAMESPACE_BEGIN
 
 
@@ -54,6 +65,14 @@ private:
     size_t col_;    //!< Current Column
 };
 
+#if defined(_MSC_VER) && _MSC_VER <= 1800
+RAPIDJSON_DIAG_POP
+#endif
+
+#if defined(__GNUC__)
+RAPIDJSON_DIAG_POP
+#endif
+
 RAPIDJSON_NAMESPACE_END
 
 #endif // RAPIDJSON_CURSORSTREAMWRAPPER_H_