BLE: expose representation type and pointer to the inner storage in SafeEnum.

features/FEATURE_BLE/ble/SafeEnum.h

@@ -107,6 +107,10 @@ namespace ble {
  */
 template<typename Target, typename LayoutType = unsigned int>
 struct SafeEnum {
+	/**
+	 * Type of the representation.
+	 */
+	typedef LayoutType representation_t;
 
     /**
      * Construction of an enumeration value.
@@ -197,6 +201,14 @@ struct SafeEnum {
 		return _value;
 	}
 
+	/**
+	 * Return a pointer to the inner storage.
+	 */
+	const LayoutType* storage() const
+	{
+		return &_value;
+	}
+
 private:
 	LayoutType _value;
 };