From: Daniel Arndt <arndtd@ornl.gov>
Date: Mon, 18 Nov 2024 16:37:47 +0000 (-0500)
Subject: Fix get_communicator_by_value for SUNDIALS 7
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f36b4fe12a7c095254a7adff412c5a638e5a9d04;p=dealii.git

Fix get_communicator_by_value for SUNDIALS 7
---

diff --git a/include/deal.II/sundials/n_vector.templates.h b/include/deal.II/sundials/n_vector.templates.h
index 3e54f4874f..8fe20deecc 100644
--- a/include/deal.II/sundials/n_vector.templates.h
+++ b/include/deal.II/sundials/n_vector.templates.h
@@ -753,7 +753,7 @@ namespace SUNDIALS
           //
           // Further, we need to cast away const here, as SUNDIALS demands the
           // communicator by value.
-          return const_cast<SUNComm>(get_mpi_communicator<VectorType>(v));
+          return const_cast<SUNComm &>(get_mpi_communicator<VectorType>(v));
         else
           return SUN_COMM_NULL;
 #    endif