BoundaryMeshFunction added.

src/TNL/Functions/BoundaryMeshFunction.h

+/***************************************************************************
+                          BoundaryMeshFunction.h  -  description
+                             -------------------
+    begin                : Aug 21, 2018
+    copyright            : (C) 2018 by oberhuber
+    email                : tomas.oberhuber@fjfi.cvut.cz
+ ***************************************************************************/
+
+/* See Copyright Notice in tnl/Copyright */
+
+#pragma once
+
+#include <TNL/Functions/MeshFunction.h>
+
+namespace TNL {
+namespace Functions {   
+
+   
+// BoundaryMeshFunction is supposed to store values of a mesh functions only
+// at boundary mesh entities. It is just a small memory optimization.
+// Currently, it is only a wrap around common MeshFunction so that we can introduce
+// boundary mesh functions in the rest of the code. 
+// TODO: Implement it.
+template< typename Mesh,
+          int MeshEntityDimension = Mesh::getMeshDimension(),
+          typename Real = typename Mesh::RealType >
+class BoundaryMeshFunction :
+   public MeshFunction< Mesh, MeshEntityDimension, Real >
+{
+   public:
+      
+      using BaseType = MeshFunction< Mesh, MeshEntityDimension, Real >;
+      using ThisType = BoundaryMeshFunction< Mesh, MeshEntityDimension, Real >;
+      using typename BaseType::MeshType;
+      using typename BaseType::DeviceType;
+      using typename BaseType::IndexType;
+      using typename BaseType::MeshPointer;
+      using typename BaseType::RealType;
+      using typename BaseType::VectorType;
+      using typename BaseType::DistributedMeshType;
+      using typename BaseType::DistributedMeshSynchronizerType;
+   
+   
+};
+
+} // namespace Functions
+} // namespace TNL

src/TNL/Functions/CMakeLists.txt

 ADD_SUBDIRECTORY( Analytic )
 
-SET( headers Domain.h
+SET( headers BoundaryMeshFunction.h
+             Domain.h
              ExactOperatorFunction.h
              FunctionAdapter.h
              MeshFunction.h

src/UnitTests/Functions/BoundaryMeshFunctionTest.cpp

+/***************************************************************************
+                          BoundaryMeshFunctionTest.cpp  -  description
+                             -------------------
+    begin                : Aug 21, 2018
+    copyright            : (C) 2018 by oberhuber
+    email                : tomas.oberhuber@fjfi.cvut.cz
+ ***************************************************************************/
+
+/* See Copyright Notice in tnl/Copyright */
+
+#include "BoundaryMeshFunctionTest.h"
\ No newline at end of file

src/UnitTests/Functions/BoundaryMeshFunctionTest.cu

+/***************************************************************************
+                          BoundaryMeshFunctionTest.cu  -  description
+                             -------------------
+    begin                : Aug 21, 2018
+    copyright            : (C) 2018 by oberhuber
+    email                : tomas.oberhuber@fjfi.cvut.cz
+ ***************************************************************************/
+
+/* See Copyright Notice in tnl/Copyright */
+
+#include "BoundaryMeshFunctionTest.h"
\ No newline at end of file

src/UnitTests/Functions/BoundaryMeshFunctionTest.h

+/***************************************************************************
+                          BoundaryMeshFunctionTest.h  -  description
+                             -------------------
+    begin                : Aug 21, 2018
+    copyright            : (C) 2018 by oberhuber
+    email                : tomas.oberhuber@fjfi.cvut.cz
+ ***************************************************************************/
+
+/* See Copyright Notice in tnl/Copyright */
+
+#pragma once
+
+#include "../GtestMissingError.h"
+
+#ifdef HAVE_GTEST 
+#include <gtest/gtest.h>
+#include <TNL/Functions/BoundaryMeshFunction.h>
+#include <TNL/Meshes/Grid.h>
+
+TEST( BoundaryMeshFunctionTest, BasicConstructor )
+{
+   using Grid = TNL::Meshes::Grid< 2 >;
+   TNL::Functions::BoundaryMeshFunction< Grid > boundaryMesh;
+}
+
+#endif
+
+
+int main( int argc, char* argv[] )
+{
+#ifdef HAVE_GTEST
+   ::testing::InitGoogleTest( &argc, argv );
+   return RUN_ALL_TESTS();
+#else
+   throw GtestMissingError();
+#endif
+}

src/UnitTests/Functions/CMakeLists.txt

+IF( BUILD_CUDA )
+   CUDA_ADD_EXECUTABLE( BoundaryMeshFunctionTest BoundaryMeshFunctionTest.h BoundaryMeshFunctionTest.cu OPTIONS ${CXX_TESTS_FLAGS} )
+   TARGET_LINK_LIBRARIES( BoundaryMeshFunctionTest ${GTEST_BOTH_LIBRARIES}
+                                                           tnl )
+ELSE(  BUILD_CUDA )
+   ADD_EXECUTABLE( BoundaryMeshFunctionTest BoundaryMeshFunctionTest.h BoundaryMeshFunctionTest.cpp )
+   TARGET_COMPILE_OPTIONS( BoundaryMeshFunctionTest PRIVATE ${CXX_TESTS_FLAGS} )
+   TARGET_LINK_LIBRARIES( BoundaryMeshFunctionTest ${GTEST_BOTH_LIBRARIES}
+                                                           tnl )
+ENDIF( BUILD_CUDA )
+
+
+ADD_TEST( BoundaryMeshFunctionTest ${EXECUTABLE_OUTPUT_PATH}/BoundaryMeshFunctionTest${CMAKE_EXECUTABLE_SUFFIX} )
\ No newline at end of file