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From af73f368f7f9d4a00df075d1a9f50fc495f8e87a Mon Sep 17 00:00:00 2001
From: Timo Heister <timo.heister@gmail.com>
Date: Sat, 25 Dec 2021 12:30:45 -0500
Subject: [PATCH] fix sundials compilation
---
include/deal.II/sundials/n_vector.templates.h | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/include/deal.II/sundials/n_vector.templates.h b/include/deal.II/sundials/n_vector.templates.h
index 2b49e3efc9..746f63a03b 100644
--- a/include/deal.II/sundials/n_vector.templates.h
+++ b/include/deal.II/sundials/n_vector.templates.h
@@ -253,13 +253,13 @@ namespace SUNDIALS
template <
typename VectorType,
typename std::enable_if_t<!IsBlockVector<VectorType>::value, int> = 0>
- MPI_Comm
+ const MPI_Comm &
get_communicator(N_Vector v);
template <
typename VectorType,
typename std::enable_if_t<IsBlockVector<VectorType>::value, int> = 0>
- MPI_Comm
+ const MPI_Comm &
get_communicator(N_Vector v);
/**
@@ -481,7 +481,7 @@ SUNDIALS::internal::NVectorOperations::destroy(N_Vector v)
template <typename VectorType,
std::enable_if_t<IsBlockVector<VectorType>::value, int>>
-MPI_Comm
+const MPI_Comm &
SUNDIALS::internal::NVectorOperations::get_communicator(N_Vector v)
{
return unwrap_nvector_const<VectorType>(v)->block(0).get_mpi_communicator();
@@ -491,7 +491,7 @@ SUNDIALS::internal::NVectorOperations::get_communicator(N_Vector v)
template <typename VectorType,
std::enable_if_t<!IsBlockVector<VectorType>::value, int>>
-MPI_Comm
+const MPI_Comm &
SUNDIALS::internal::NVectorOperations::get_communicator(N_Vector v)
{
return unwrap_nvector_const<VectorType>(v)->get_mpi_communicator();
@@ -519,7 +519,8 @@ SUNDIALS::internal::NVectorOperations::get_communicator_as_void_ptr(N_Vector v)
(void)v;
return nullptr;
# else
- return get_communicator<VectorType>(v);
+ // We need to cast away const here, as SUNDIALS demands a pure `void *`.
+ return &(const_cast<MPI_Comm &>(get_communicator<VectorType>(v)));
# endif
}
--
2.30.2
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