Tensor data structure based on mdarray

dune/common/tensor.hh

@@ -68,6 +68,9 @@ public:
   using tensorspan_type = TensorSpan<element_type,extents_type,layout_type>;
   using const_tensorspan_type = TensorSpan<const element_type,extents_type,layout_type>;
 
+  using tensorspan_type = TensorSpan<element_type,extents_type,layout_type>;
+  using const_tensorspan_type = TensorSpan<const element_type,extents_type,layout_type>;
+
 public:
   /// \brief Inherit constructor from TensorMixin
   using base_type::base_type;

dune/common/test/CMakeLists.txt

@@ -130,6 +130,10 @@ dune_add_test(SOURCES dynmatrixtest.cc
 dune_add_test(SOURCES dyntensortest.cc
               LABELS quick)
 
+dune_add_test(SOURCES dyntensortest.cc
+              LINK_LIBRARIES dunecommon
+              LABELS quick)
+
 dune_add_test(SOURCES dynvectortest.cc
               LABELS quick)
 

dune/common/test/dyntensortest.cc

@@ -132,6 +132,10 @@ void checkConstructors(Dune::TestSuite& testSuite)
     Dune::Tensor t3{tensor1.toTensorSpan()};
   }
 
+
+  Tensor tensor9(tensor1.toTensorSpan());
+
+
   testSuite.subTest(subTestSuite);
 }
 

dune/common/test/foreachindex.hh

@@ -13,7 +13,6 @@
 #include <dune/common/forceinline.hh>
 #include <dune/common/std/extents.hh>
 #include <dune/common/std/span.hh>
-#include <dune/common/std/functional.hh>
 
 namespace Dune {
 namespace Impl {