c3fbe073e8
Matches the previous move from Tuple to Vec. We can unify on this name.
158 lines
4.8 KiB
C++
158 lines
4.8 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 2014 Sandia Corporation.
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// Copyright 2014 UT-Battelle, LLC.
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// Copyright 2014. 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 vtkm_testing_VecTraitsTest_h
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#define vtkm_testing_VecTraitsTest_h
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#include <vtkm/VecTraits.h>
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#include <vtkm/TypeTraits.h>
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#include <vtkm/testing/Testing.h>
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#include <boost/type_traits/remove_const.hpp>
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namespace vtkm {
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namespace testing {
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namespace detail {
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inline void CompareDimensionalityTags(vtkm::TypeTraitsScalarTag,
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vtkm::VecTraitsTagSingleComponent)
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{
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// If we are here, everything is fine.
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}
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inline void CompareDimensionalityTags(vtkm::TypeTraitsVectorTag,
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vtkm::VecTraitsTagMultipleComponents)
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{
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// If we are here, everything is fine.
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}
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/// Compares some manual arithmetic through type traits to arithmetic with
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/// the Tuple class.
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template <class T>
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static void TestVecTypeImpl(
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const typename boost::remove_const<T>::type &vector)
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{
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typedef typename vtkm::VecTraits<T> Traits;
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typedef typename Traits::ComponentType ComponentType;
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static const int NUM_COMPONENTS = Traits::NUM_COMPONENTS;
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typedef typename boost::remove_const<T>::type NonConstT;
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{
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NonConstT result;
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const ComponentType multiplier = 4;
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for (int i = 0; i < NUM_COMPONENTS; i++)
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{
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Traits::SetComponent(result, i, multiplier*Traits::GetComponent(vector, i));
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}
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VTKM_TEST_ASSERT(test_equal(Traits::ToVec(result),
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multiplier*Traits::ToVec(vector)),
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"Got bad result for scalar multiple");
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}
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{
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NonConstT result;
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const ComponentType multiplier = 7;
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for (int i = 0; i < NUM_COMPONENTS; i++)
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{
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Traits::GetComponent(result, i)
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= multiplier * Traits::GetComponent(vector, i);
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}
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VTKM_TEST_ASSERT(test_equal(Traits::ToVec(result),
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multiplier*Traits::ToVec(vector)),
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"Got bad result for scalar multiple");
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}
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{
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ComponentType result = 0;
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for (int i = 0; i < NUM_COMPONENTS; i++)
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{
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ComponentType component
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= Traits::GetComponent(vector, i);
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result += component * component;
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}
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VTKM_TEST_ASSERT(
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test_equal(result,
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vtkm::dot(Traits::ToVec(vector), Traits::ToVec(vector))),
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"Got bad result for dot product");
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}
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// This will fail to compile if the tags are wrong.
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detail::CompareDimensionalityTags(
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typename vtkm::TypeTraits<T>::DimensionalityTag(),
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typename vtkm::VecTraits<T>::HasMultipleComponents());
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}
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inline void CheckVecComponentsTag(vtkm::VecTraitsTagMultipleComponents)
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{
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// If we are running here, everything is fine.
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}
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} // namespace detail
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/// Checks to make sure that the HasMultipleComponents tag is actually for
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/// multiple components. Should only be called for vector classes that actually
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/// have multiple components.
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///
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template<class T>
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inline void TestVecComponentsTag()
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{
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// This will fail to compile if the tag is wrong
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// (i.e. not vtkm::VecTraitsTagMultipleComponents)
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detail::CheckVecComponentsTag(
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typename vtkm::VecTraits<T>::HasMultipleComponents());
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}
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namespace detail {
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inline void CheckScalarComponentsTag(vtkm::VecTraitsTagSingleComponent)
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{
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// If we are running here, everything is fine.
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}
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} // namespace detail
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/// Compares some manual arithmetic through type traits to arithmetic with
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/// the Tuple class.
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template <class T>
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static void TestVecType(const T &vector)
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{
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detail::TestVecTypeImpl<T>(vector);
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detail::TestVecTypeImpl<const T>(vector);
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}
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/// Checks to make sure that the HasMultipleComponents tag is actually for a
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/// single component. Should only be called for "vector" classes that actually
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/// have only a single component (that is, are really scalars).
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///
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template<class T>
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inline void TestScalarComponentsTag()
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{
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// This will fail to compile if the tag is wrong
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// (i.e. not vtkm::VecTraitsTagSingleComponent)
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detail::CheckScalarComponentsTag(
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typename vtkm::VecTraits<T>::HasMultipleComponents());
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}
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}
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} // namespace vtkm::testing
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#endif //vtkm_testing_VecTraitsTest_h
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