mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-10-06 02:18:58 +00:00
2ddad8bcc5
Add in the vtkm namespace an assert macro (technically VTKM_ASSERT) that basically replicates the functionality of the POSIX assert macro. This form of assert is set to replace the separate control/exection asserts. It has been decided that an assert that throws an exception instead of terminating the program is not all that great of a feature and it causes some limitations on how it is used. The next commit will remove the other forms of VTK-m assert.
172 lines
4.9 KiB
C++
172 lines
4.9 KiB
C++
//============================================================================
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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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// 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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//
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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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#ifndef vtk_m_VecVariable_h
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#define vtk_m_VecVariable_h
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#include <vtkm/Assert.h>
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#include <vtkm/Math.h>
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#include <vtkm/Types.h>
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#include <vtkm/TypeTraits.h>
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#include <vtkm/VecTraits.h>
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namespace vtkm {
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/// \brief A short variable-length array with maximum length.
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///
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/// The \c VecVariable class is a Vec-like class that holds a short array of
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/// some maximum length. To avoid dynamic allocations, the maximum length is
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/// specified at compile time. Internally, \c VecVariable holds a \c Vec of
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/// the maximum length and exposes a subsection of it.
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///
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template<typename T, vtkm::IdComponent MaxSize>
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class VecVariable
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{
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public:
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typedef T ComponentType;
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VTKM_EXEC_CONT_EXPORT
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VecVariable() : NumComponents(0) { }
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template<vtkm::IdComponent SrcSize>
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VTKM_EXEC_CONT_EXPORT
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VecVariable(const vtkm::VecVariable<ComponentType,SrcSize> &src)
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: NumComponents(src.GetNumberOfComponents())
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{
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VTKM_ASSERT(this->NumComponents <= MaxSize);
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for (vtkm::IdComponent index = 0; index < this->NumComponents; index++)
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{
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this->Data[index] = src[index];
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}
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}
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template<vtkm::IdComponent SrcSize>
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VTKM_EXEC_CONT_EXPORT
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VecVariable(const vtkm::Vec<ComponentType,SrcSize> &src)
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: NumComponents(SrcSize)
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{
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VTKM_ASSERT(this->NumComponents <= MaxSize);
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for (vtkm::IdComponent index = 0; index < this->NumComponents; index++)
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{
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this->Data[index] = src[index];
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}
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}
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VTKM_EXEC_CONT_EXPORT
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vtkm::IdComponent GetNumberOfComponents() const {
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return this->NumComponents;
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}
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template<vtkm::IdComponent DestSize>
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VTKM_EXEC_CONT_EXPORT
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void CopyInto(vtkm::Vec<ComponentType,DestSize> &dest) const
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{
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vtkm::IdComponent numComponents = vtkm::Min(DestSize, this->NumComponents);
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for (vtkm::IdComponent index = 0; index < numComponents; index++)
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{
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dest[index] = this->Data[index];
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}
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}
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VTKM_EXEC_CONT_EXPORT
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const ComponentType &operator[](vtkm::IdComponent index) const
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{
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return this->Data[index];
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}
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VTKM_EXEC_CONT_EXPORT
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ComponentType &operator[](vtkm::IdComponent index)
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{
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return this->Data[index];
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}
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VTKM_EXEC_CONT_EXPORT
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void Append(ComponentType value)
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{
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VTKM_ASSERT(this->NumComponents < MaxSize);
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this->Data[this->NumComponents] = value;
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this->NumComponents++;
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}
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private:
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vtkm::Vec<T,MaxSize> Data;
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vtkm::IdComponent NumComponents;
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};
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template<typename T, vtkm::IdComponent MaxSize>
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struct TypeTraits<vtkm::VecVariable<T,MaxSize> >
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{
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typedef typename vtkm::TypeTraits<T>::NumericTag NumericTag;
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typedef TypeTraitsVectorTag DimensionalityTag;
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VTKM_EXEC_CONT_EXPORT
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static vtkm::VecVariable<T,MaxSize> ZeroInitialization()
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{
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return vtkm::VecVariable<T,MaxSize>();
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}
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};
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template<typename T, vtkm::IdComponent MaxSize>
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struct VecTraits<vtkm::VecVariable<T,MaxSize> >
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{
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typedef vtkm::VecVariable<T,MaxSize> VecType;
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typedef typename VecType::ComponentType ComponentType;
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typedef vtkm::VecTraitsTagMultipleComponents HasMultipleComponents;
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typedef vtkm::VecTraitsTagSizeVariable IsSizeStatic;
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VTKM_EXEC_CONT_EXPORT
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static vtkm::IdComponent GetNumberOfComponents(const VecType &vector) {
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return vector.GetNumberOfComponents();
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}
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VTKM_EXEC_CONT_EXPORT
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static const ComponentType &GetComponent(const VecType &vector,
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vtkm::IdComponent componentIndex)
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{
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return vector[componentIndex];
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}
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VTKM_EXEC_CONT_EXPORT
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static ComponentType &GetComponent(VecType &vector,
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vtkm::IdComponent componentIndex)
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{
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return vector[componentIndex];
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}
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VTKM_EXEC_CONT_EXPORT
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static void SetComponent(VecType &vector,
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vtkm::IdComponent componentIndex,
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const ComponentType &value)
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{
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vector[componentIndex] = value;
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}
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template<vtkm::IdComponent destSize>
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VTKM_EXEC_CONT_EXPORT
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static void CopyInto(const VecType &src,
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vtkm::Vec<ComponentType,destSize> &dest)
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{
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src.CopyInto(dest);
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}
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};
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} // namespace vtkm
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#endif //vtk_m_VecVariable_h
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