[properties] add forward declaration

2026-07-31 10:57:55 -05:00 · 2020-05-18 15:53:58 +02:00
parent 2fe69dfd9b
commit cb81d87fd3
1 changed files with 3 additions and 0 deletions
@@ -236,6 +236,9 @@ struct GetTypeTagInheritance<std::tuple<FirstTypeTag, OtherTypeTags...>>
        using type = __VA_ARGS__;                                 \
    }

+template <class TypeTag, class MyTypeTag>
+struct Scalar;
+
 /*!
 * \ingroup Properties
 * \brief Set a property to a simple constant scalar value.