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https://gitlab.kitware.com/vtk/vtk-m
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65c2261892
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.
88 lines
2.5 KiB
C++
88 lines
2.5 KiB
C++
//=============================================================================
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//
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// Copyright (c) Kitware, Inc.
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// All rights reserved.
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// See LICENSE.txt for details.
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//
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// This software is distributed WITHOUT ANY WARRANTY; without even
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// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the above copyright notice for more information.
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//
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// Copyright 2015 Sandia Corporation.
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// Copyright 2015 UT-Battelle, LLC.
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// Copyright 2015 Los Alamos National Security.
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//
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// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
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// the U.S. Government retains certain rights in this software.
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// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
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// Laboratory (LANL), the U.S. Government retains certain rights in
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// this software.
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//
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//=============================================================================
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#ifndef vtk_m_cont_ArrayHandleCast_h
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#define vtk_m_cont_ArrayHandleCast_h
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#include <vtkm/cont/ArrayHandleTransform.h>
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namespace vtkm {
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namespace cont {
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namespace internal {
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template<typename FromType, typename ToType>
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struct Cast
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{
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VTKM_EXEC_CONT_EXPORT
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ToType operator()(const FromType &val) const
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{
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return static_cast<ToType>(val);
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}
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};
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} // namespace internal
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/// \brief Cast the values of an array to the specified type, on demand.
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///
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/// ArrayHandleCast is a specialization of ArrayHandleTransform. Given an ArrayHandle
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/// and a type, it creates a new handle that returns the elements of the array cast
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/// to the specified type.
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///
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template <typename T, typename ArrayHandleType>
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class ArrayHandleCast :
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public vtkm::cont::ArrayHandleTransform<
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T,
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ArrayHandleType,
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internal::Cast<typename ArrayHandleType::ValueType, T> >
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{
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public:
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VTKM_ARRAY_HANDLE_SUBCLASS(
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ArrayHandleCast,
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(ArrayHandleCast<T, ArrayHandleType>),
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(vtkm::cont::ArrayHandleTransform<
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T,
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ArrayHandleType,
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internal::Cast<typename ArrayHandleType::ValueType, T> >));
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VTKM_CONT_EXPORT
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ArrayHandleCast(const ArrayHandleType &handle)
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: Superclass(handle)
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{ }
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};
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/// make_ArrayHandleCast is convenience function to generate an
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/// ArrayHandleCast.
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///
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template <typename T, typename HandleType>
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VTKM_CONT_EXPORT
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ArrayHandleCast<T, HandleType> make_ArrayHandleCast(const HandleType &handle,
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const T&)
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{
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return ArrayHandleCast<T, HandleType>(handle);
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}
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}
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} // namespace vtkm::cont
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#endif // vtk_m_cont_ArrayHandleCast_h
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