Fix initialize_dof_vector_t.

The correct function requires a vector reference input argument.

diff --git a/include/deal.II/lac/la_parallel_vector.h b/include/deal.II/lac/la_parallel_vector.h
index 7c37a6588e78cdd2b838014da4fadc29dbc080e9..15988bdc09f13dcffe764593c0548656bd38f16b 100644 (file)
--- a/include/deal.II/lac/la_parallel_vector.h
+++ b/include/deal.II/lac/la_parallel_vector.h
@@ -1918,7 +1918,8 @@ namespace internal
       // void T::initialize_dof_vector(VectorType v)
       template <typename T>
       using initialize_dof_vector_t =
-        decltype(std::declval<T>().initialize_dof_vector());
+        decltype(std::declval<T>().initialize_dof_vector(
+          std::declval<LinearAlgebra::distributed::Vector<Number> &>()));
 
       template <typename T>
       static constexpr bool has_initialize_dof_vector =