From cb253ae7faa74b2a9ca32a7d39291b1de347fced Mon Sep 17 00:00:00 2001
From: Tobias Leibner <tobias.leibner@googlemail.com>
Date: Tue, 1 Oct 2019 18:19:32 +0200
Subject: [PATCH] [parallel] fix tests and headercheck without mpi
---
dune/xt/common/parallel/communicator.hh | 11 +++++++++++
dune/xt/common/parallel/mpi_comm_wrapper.hh | 2 ++
2 files changed, 13 insertions(+)
diff --git a/dune/xt/common/parallel/communicator.hh b/dune/xt/common/parallel/communicator.hh
index f88a00b5b..47263d110 100644
--- a/dune/xt/common/parallel/communicator.hh
+++ b/dune/xt/common/parallel/communicator.hh
@@ -29,6 +29,17 @@ bool operator!=(const No_Comm& lhs, const No_Comm& rhs)
return !(lhs == rhs);
}
+// CollectiveCommunication<No_Comm> is also missing a comparison operator (CollectiveCommunication<MPI_Comm> does not
+// have a comparison operator either, but it has a conversion operator to MPI_Comm which does have operator==)
+bool operator==(const CollectiveCommunication<No_Comm>& /*lhs*/, const CollectiveCommunication<No_Comm>& /*rhs*/)
+{
+ return true;
+}
+bool operator!=(const CollectiveCommunication<No_Comm>& lhs, const CollectiveCommunication<No_Comm>& rhs)
+{
+ return !(lhs == rhs);
+}
+
} // namespace Dune
diff --git a/dune/xt/common/parallel/mpi_comm_wrapper.hh b/dune/xt/common/parallel/mpi_comm_wrapper.hh
index 73960f9e5..0545a658e 100644
--- a/dune/xt/common/parallel/mpi_comm_wrapper.hh
+++ b/dune/xt/common/parallel/mpi_comm_wrapper.hh
@@ -21,6 +21,8 @@
# include <dune/pybindxi/stl.h>
#endif
+#include <dune/xt/common/parallel/communicator.hh>
+
namespace Dune {
namespace XT {
namespace Common {
--
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