Fix DataOutInterface::set_flags() for GnuplotFlags.

diff --git a/source/base/data_out_base.cc b/source/base/data_out_base.cc
index 77369d55b490b8a0792e7ce99dd943594efcffd3..36cc260b59c3444fd9f1fc61aa9719ea1cb84bd8 100644 (file)
--- a/source/base/data_out_base.cc
+++ b/source/base/data_out_base.cc
@@ -7141,6 +7141,8 @@ DataOutInterface<dim, spacedim>::set_flags (const FlagType &flags)
     vtk_flags = *reinterpret_cast<const DataOutBase::VtkFlags *>(&flags);
   else if (typeid(flags) == typeid(svg_flags))
     svg_flags = *reinterpret_cast<const DataOutBase::SvgFlags *>(&flags);
+  else if (typeid(flags) == typeid(gnuplot_flags))
+    gnuplot_flags = *reinterpret_cast<const DataOutBase::GnuplotFlags *>(&flags);
   else if (typeid(flags) == typeid(deal_II_intermediate_flags))
     deal_II_intermediate_flags = *reinterpret_cast<const DataOutBase::Deal_II_IntermediateFlags *>(&flags);
   else