vtk-m/vtkm/cont/ArrayHandleIndex.h
Kenneth Moreland 65c2261892 Add default constructors/destructors/assignment to ArrayHandle classes
The ArrayHandle classes all exclusively work in the control environment.
However, CUDA likes to add __device__ to constructors, destructors, and
assignment operators it automatically adds. This in turn causes warnings
about the __device__ function using host-only classes (like
boost::shared_ptr). Solve this problem by adding explicit methods for
all of these.

Implemented this by wrapping up all these default objects in a macro.
This also solved the problem of other constructors that are necessary
for array handles such as a constructor that takes the base array
handle.
2015-10-21 13:36:27 -06:00

62 lines
1.8 KiB
C++

//=============================================================================
//
// Copyright (c) Kitware, Inc.
// All rights reserved.
// See LICENSE.txt for details.
//
// This software is distributed WITHOUT ANY WARRANTY; without even
// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
// PURPOSE. See the above copyright notice for more information.
//
// Copyright 2015 Sandia Corporation.
// Copyright 2015 UT-Battelle, LLC.
// Copyright 2015 Los Alamos National Security.
//
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
// the U.S. Government retains certain rights in this software.
// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
// Laboratory (LANL), the U.S. Government retains certain rights in
// this software.
//
//=============================================================================
#ifndef vtk_m_cont_ArrayHandleIndex_h
#define vtk_m_cont_ArrayHandleIndex_h
#include <vtkm/cont/ArrayHandleImplicit.h>
namespace vtkm {
namespace cont {
namespace detail {
struct IndexFunctor {
VTKM_EXEC_CONT_EXPORT
vtkm::Id operator()(vtkm::Id index) const { return index; }
};
} // namespace detail
/// \brief An implicit array handle containing the its own indices.
///
/// \c ArrayHandleIndex is an implicit array handle containing the values
/// 0, 1, 2, 3,... to a specified size. Every value in the array is the same
/// as the index to that value.
///
class ArrayHandleIndex
: public vtkm::cont::ArrayHandleImplicit<vtkm::Id, detail::IndexFunctor>
{
public:
VTKM_ARRAY_HANDLE_SUBCLASS_NT(
ArrayHandleIndex,
(vtkm::cont::ArrayHandleImplicit<vtkm::Id, detail::IndexFunctor>));
VTKM_CONT_EXPORT
ArrayHandleIndex(vtkm::Id length)
: Superclass(detail::IndexFunctor(), length) { }
};
}
} // namespace vtkm::cont
#endif //vtk_m_cont_ArrayHandleIndex_h