From e6fd9495a20e8c420066fa7030014b27e9f25a44 Mon Sep 17 00:00:00 2001
From: Tobias Leibner <tobias.leibner@googlemail.com>
Date: Tue, 15 May 2018 09:56:58 +0200
Subject: [PATCH] [walker.apply-on] add singletons for AllEntities and
AllIntersections
---
dune/xt/grid/walker/apply-on.hh | 16 +++++++++++++++-
1 file changed, 15 insertions(+), 1 deletion(-)
diff --git a/dune/xt/grid/walker/apply-on.hh b/dune/xt/grid/walker/apply-on.hh
index 39563a738..45d715106 100644
--- a/dune/xt/grid/walker/apply-on.hh
+++ b/dune/xt/grid/walker/apply-on.hh
@@ -80,6 +80,13 @@ public:
}
}; // class AllEntities
+template <class GridLayerImp>
+const AllEntities<GridLayerImp>* all_entities()
+{
+ static const AllEntities<GridLayerImp> all_entities_singleton;
+ return &all_entities_singleton;
+}
+
/**
* \brief Selects entities which have a boundary intersection.
@@ -294,9 +301,16 @@ public:
}
}; // class AllIntersections
+template <class GridLayerImp>
+const AllIntersections<GridLayerImp>* all_intersections()
+{
+ static const AllIntersections<GridLayerImp> all_intersections_singleton;
+ return &all_intersections_singleton;
+}
+
/**
- * \brief Selects all intersections.
+ * \brief Selects no intersections.
*/
template <class GridLayerImp>
class NoIntersections : public internal::WhichIntersectionBase<GridLayerImp, NoIntersections<GridLayerImp>>
--
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