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/*=========================================================================
Program: Visualization Toolkit
Module: vtkStdFunctionArray.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm 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.
=========================================================================*/
// Funded by CEA, DAM, DIF, F-91297 Arpajon, France
#ifndef vtkStdFunctionArray_h
#define vtkStdFunctionArray_h
#ifdef VTK_STD_FUNCTION_ARRAY_INSTANTIATING
#define VTK_IMPLICIT_VALUERANGE_INSTANTIATING
#include "vtkDataArrayPrivate.txx"
#endif
#include "vtkCommonImplicitArraysModule.h" // for export macro
#include "vtkImplicitArray.h"
#ifdef VTK_STD_FUNCTION_ARRAY_INSTANTIATING
#undef VTK_IMPLICIT_VALUERANGE_INSTANTIATING
#endif
#include <functional>
/**
* \var vtkStdFunctionArray
* \brief A utility alias for wrapping std::function in implicit arrays
*
* The main goal behind this alias is to be able to offer some semi-flexible instantiations of
* implicit arrays that can work with the vtkArrayDispatch mechanisms.
*
* In order to be usefully included in the dispatchers, these arrays need to be instantiated at the
* vtk library compile time. As such, they need to be compilable without knowing the exact
* function/mapping to include in the backend. This is why std::function is used as the backend
* here.
*
* @sa
* vtkImplicitArray
*/
VTK_ABI_NAMESPACE_BEGIN
template <typename T>
using vtkStdFunctionArray = vtkImplicitArray<std::function<T(int)>>;
VTK_ABI_NAMESPACE_END
#endif // vtkStdFunctionArray_h
#ifdef VTK_STD_FUNCTION_ARRAY_INSTANTIATING
#define VTK_INSTANTIATE_STD_FUNCTION_ARRAY(ValueType) \
VTK_ABI_NAMESPACE_BEGIN \
template class VTKCOMMONIMPLICITARRAYS_EXPORT vtkImplicitArray<std::function<ValueType(int)>>; \
VTK_ABI_NAMESPACE_END \
namespace vtkDataArrayPrivate \
{ \
VTK_ABI_NAMESPACE_BEGIN \
VTK_INSTANTIATE_VALUERANGE_ARRAYTYPE(vtkImplicitArray<std::function<ValueType(int)>>, double) \
VTK_ABI_NAMESPACE_END \
}
#endif
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