diff --git a/include/etl/to_arithmetic.h b/include/etl/to_arithmetic.h
index 3ab2a60d..099fe2af 100644
--- a/include/etl/to_arithmetic.h
+++ b/include/etl/to_arithmetic.h
@@ -43,6 +43,7 @@ SOFTWARE.
 #include "bit.h"
 #include "smallest.h"
 #include "absolute.h"
+//#include "expected.h"
 
 namespace etl
 {
@@ -73,6 +74,16 @@ namespace etl
     ETL_END_ENUM_TYPE
   };
 
+//#if ETL_CPP11_SUPPORTED
+//  template <typename TValue>
+//  using to_arithmetic_result = etl::expected<TValue, etl::unexpected<to_arithmetic_status>>;
+//#else
+//  struct to_arithmetic_result
+//  {
+//    typedef etl::expected<TValue, etl::unexpected<etl::to_arithmetic_status> > type;
+//  };
+//#endif
+
   //***************************************************************************
   /// Status values for to_arithmetic.
   //***************************************************************************