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STYLE: Add constexpr to variables initialized by MakeFilled #4930

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Nov 5, 2024
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STYLE: Add constexpr to variables initialized by MakeFilled #4930

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2 changes: 1 addition & 1 deletion Modules/Core/Common/include/itkShapedFloodFilledFunctionConditionalConstIterator.hxx
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Expand Up @@ -80,7 +80,7 @@ ShapedFloodFilledFunctionConditionalConstIterator<TImage, TFunction>::Initialize
m_ImageRegion = this->m_Image->GetBufferedRegion();

// Build and setup the neighborhood iterator
auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);
constexpr auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);
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@N-Dekker N-Dekker Nov 4, 2024

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We could even declare those variables static constexpr, instead of just non-static constexpr. I don't know if it matters much, in these cases 🤷 Some people prefer to always declare local variables static constexpr if possible.


NeighborhoodIteratorType tmp_iter(radius, this->m_Image, m_ImageRegion);
m_NeighborhoodIterator = tmp_iter;
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2 changes: 1 addition & 1 deletion Modules/Core/Transform/include/itkScaleTransform.hxx
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Expand Up @@ -193,7 +193,7 @@ void
ScaleTransform<TParametersValueType, VDimension>::SetIdentity()
{
Superclass::SetIdentity();
auto i = MakeFilled<ScaleType>(1.0);
constexpr auto i = MakeFilled<ScaleType>(1.0);
this->SetScale(i);
}

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2 changes: 1 addition & 1 deletion Modules/Filtering/BinaryMathematicalMorphology/include/itkObjectMorphologyImageFilter.hxx
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Expand Up @@ -132,7 +132,7 @@ ObjectMorphologyImageFilter<TInputImage, TOutputImage, TKernel>::DynamicThreaded
// Setup the kernel that spans the immediate neighbors of the current
// input pixel - used to determine if that pixel abuts a non-object
// pixel, i.e., is a boundary pixel
auto bKernelSize = MakeFilled<RadiusType>(1);
constexpr auto bKernelSize = MakeFilled<RadiusType>(1);

TotalProgressReporter progress(this, this->GetOutput()->GetRequestedRegion().GetNumberOfPixels());

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4 changes: 2 additions & 2 deletions Modules/Filtering/Convolution/include/itkConvolutionImageFilter.hxx
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Expand Up @@ -95,8 +95,8 @@ ConvolutionImageFilter<TInputImage, TKernelImage, TOutputImage>::ComputeConvolut

// Flip the kernel
using FlipperType = FlipImageFilter<TImage>;
auto flipper = FlipperType::New();
auto axesArray = MakeFilled<typename FlipperType::FlipAxesArrayType>(true);
auto flipper = FlipperType::New();
constexpr auto axesArray = MakeFilled<typename FlipperType::FlipAxesArrayType>(true);
flipper->SetFlipAxes(axesArray);
flipper->SetInput(kernelImage);

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4 changes: 2 additions & 2 deletions Modules/Filtering/Convolution/include/itkMaskedFFTNormalizedCorrelationImageFilter.hxx
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Expand Up @@ -299,8 +299,8 @@ MaskedFFTNormalizedCorrelationImageFilter<TInputImage, TOutputImage, TMaskImage>

// Flip the moving images along all dimensions so that the correlation can be more easily handled.
using FlipperType = itk::FlipImageFilter<LocalInputImageType>;
auto flipAxes = MakeFilled<typename FlipperType::FlipAxesArrayType>(true);
auto rotater = FlipperType::New();
constexpr auto flipAxes = MakeFilled<typename FlipperType::FlipAxesArrayType>(true);
auto rotater = FlipperType::New();
rotater->SetFlipAxes(flipAxes);
rotater->SetInput(inputImage);
rotater->Update();
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2 changes: 1 addition & 1 deletion Modules/Filtering/DisplacementField/include/itkDisplacementFieldToBSplineImageFilter.hxx
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Expand Up @@ -361,7 +361,7 @@ DisplacementFieldToBSplineImageFilter<TInputImage, TInputPointSet, TOutputImage>

itkDebugMacro("Calculating the B-spline displacement field. ");

auto close = MakeFilled<ArrayType>(false);
constexpr auto close = MakeFilled<ArrayType>(false);

auto bspliner = BSplineFilterType::New();
bspliner->SetOrigin(this->m_BSplineDomainOrigin);
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2 changes: 1 addition & 1 deletion Modules/Filtering/FastMarching/include/itkFastMarchingImageFilter.hxx
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Expand Up @@ -127,7 +127,7 @@ FastMarchingImageFilter<TLevelSet, TSpeedImage>::Initialize(LevelSetImageType *
m_BufferedRegion = output->GetBufferedRegion();
m_StartIndex = m_BufferedRegion.GetIndex();
m_LastIndex = m_StartIndex + m_BufferedRegion.GetSize();
auto offset = MakeFilled<typename LevelSetImageType::OffsetType>(1);
constexpr auto offset = MakeFilled<typename LevelSetImageType::OffsetType>(1);
m_LastIndex -= offset;

// allocate memory for the PointTypeImage
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8 changes: 4 additions & 4 deletions Modules/Filtering/FastMarching/include/itkFastMarchingImageFilterBase.hxx
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Expand Up @@ -436,7 +436,7 @@ FastMarchingImageFilterBase<TInput, TOutput>::InitializeOutput(OutputImageType *
m_OutputOrigin = oImage->GetOrigin();
m_OutputDirection = oImage->GetDirection();

auto offset = MakeFilled<typename OutputImageType::OffsetType>(1);
constexpr auto offset = MakeFilled<typename OutputImageType::OffsetType>(1);
m_LastIndex -= offset;

// Checking for handles only requires an image to keep track of
Expand Down Expand Up @@ -608,7 +608,7 @@ template <typename TInput, typename TOutput>
bool
FastMarchingImageFilterBase<TInput, TOutput>::DoesVoxelChangeViolateStrictTopology(const NodeType & idx) const
{
auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);
constexpr auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);

NeighborhoodIteratorType It(radius, this->m_LabelImage, this->m_LabelImage->GetBufferedRegion());
It.SetLocation(idx);
Expand Down Expand Up @@ -644,7 +644,7 @@ template <typename TInput, typename TOutput>
bool
FastMarchingImageFilterBase<TInput, TOutput>::IsChangeWellComposed2D(const NodeType & idx) const
{
auto radius = MakeFilled<NeighborhoodRadiusType>(1);
constexpr auto radius = MakeFilled<NeighborhoodRadiusType>(1);

NeighborhoodIteratorType It(radius, this->m_LabelImage, this->m_LabelImage->GetBufferedRegion());
It.SetLocation(idx);
Expand Down Expand Up @@ -804,7 +804,7 @@ FastMarchingImageFilterBase<TInput, TOutput>::IsChangeWellComposed3D(const NodeT
{
std::bitset<8> neighborhoodPixels;

auto radius = MakeFilled<NeighborhoodRadiusType>(1);
constexpr auto radius = MakeFilled<NeighborhoodRadiusType>(1);

NeighborhoodIteratorType It(radius, this->m_LabelImage, this->m_LabelImage->GetRequestedRegion());

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2 changes: 1 addition & 1 deletion Modules/Filtering/ImageFeature/include/itkCannyEdgeDetectionImageFilter.hxx
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Expand Up @@ -42,7 +42,7 @@ CannyEdgeDetectionImageFilter<TInputImage, TOutputImage>::CannyEdgeDetectionImag
m_UpdateBuffer1 = OutputImageType::New();

// Set up neighborhood slices for all the dimensions.
auto r = MakeFilled<typename Neighborhood<OutputImagePixelType, ImageDimension>::RadiusType>(1);
constexpr auto r = MakeFilled<typename Neighborhood<OutputImagePixelType, ImageDimension>::RadiusType>(1);

// Dummy neighborhood used to set up the slices
Neighborhood<OutputImagePixelType, ImageDimension> it;
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2 changes: 1 addition & 1 deletion Modules/Filtering/ImageGradient/include/itkVectorGradientMagnitudeImageFilter.hxx
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Expand Up @@ -102,7 +102,7 @@ VectorGradientMagnitudeImageFilter<TInputImage, TRealType, TOutputImage>::Genera
typename TInputImage::RegionType inputRequestedRegion;
inputRequestedRegion = inputPtr->GetRequestedRegion();

auto r1 = MakeFilled<RadiusType>(1);
constexpr auto r1 = MakeFilled<RadiusType>(1);
// pad the input requested region by the operator radius
inputRequestedRegion.PadByRadius(r1);

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2 changes: 1 addition & 1 deletion Modules/Filtering/MathematicalMorphology/include/itkBinaryCrossStructuringElement.h
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Expand Up @@ -89,7 +89,7 @@ class ITK_TEMPLATE_EXPORT BinaryCrossStructuringElement : public Neighborhood<TP
BinaryCrossStructuringElement()
{
// Default structuring element is defined to be 3x3x3...
auto radius = MakeFilled<RadiusType>(1);
constexpr auto radius = MakeFilled<RadiusType>(1);
Self::SetRadius(radius);
Self::CreateStructuringElement();
}
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2 changes: 1 addition & 1 deletion Modules/Nonunit/Review/include/itkMultiphaseFiniteDifferenceImageFilter.h
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Expand Up @@ -349,7 +349,7 @@ class ITK_TEMPLATE_EXPORT MultiphaseFiniteDifferenceImageFilter : public InPlace

m_DifferenceFunctions.resize(m_FunctionCount, nullptr);

auto radius = MakeFilled<RadiusType>(1);
constexpr auto radius = MakeFilled<RadiusType>(1);

for (unsigned int i = 0; i < this->m_FunctionCount; ++i)
{
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2 changes: 1 addition & 1 deletion Modules/Numerics/Statistics/include/itkScalarImageToCooccurrenceListSampleFilter.hxx
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Expand Up @@ -74,7 +74,7 @@ template <typename TImage>
void
ScalarImageToCooccurrenceListSampleFilter<TImage>::GenerateData()
{
auto radius = MakeFilled<typename ShapedNeighborhoodIteratorType::RadiusType>(1);
constexpr auto radius = MakeFilled<typename ShapedNeighborhoodIteratorType::RadiusType>(1);

using FaceCalculatorType = itk::NeighborhoodAlgorithm::ImageBoundaryFacesCalculator<ImageType>;

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2 changes: 1 addition & 1 deletion Modules/Registration/RegistrationMethodsv4/include/itkImageRegistrationMethodv4.hxx
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Expand Up @@ -871,7 +871,7 @@ ImageRegistrationMethodv4<TFixedImage, TMovingImage, TTransform, TVirtualImage,

for (SizeValueType level = 0; level < this->m_NumberOfLevels; ++level)
{
auto shrinkFactors = MakeFilled<ShrinkFactorsPerDimensionContainerType>(1);
constexpr auto shrinkFactors = MakeFilled<ShrinkFactorsPerDimensionContainerType>(1);
this->SetShrinkFactorsPerDimension(level, shrinkFactors);
}

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2 changes: 1 addition & 1 deletion Modules/Segmentation/LevelSets/include/itkSegmentationLevelSetImageFilter.h
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Expand Up @@ -439,7 +439,7 @@ class ITK_TEMPLATE_EXPORT SegmentationLevelSetImageFilter
{
m_SegmentationFunction = s;

auto r = MakeFilled<typename SegmentationFunctionType::RadiusType>(1);
constexpr auto r = MakeFilled<typename SegmentationFunctionType::RadiusType>(1);

m_SegmentationFunction->Initialize(r);
this->SetDifferenceFunction(m_SegmentationFunction);
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12 changes: 6 additions & 6 deletions Modules/Segmentation/LevelSetsv4/include/itkBinaryImageToLevelSetImageAdaptor.hxx
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Expand Up @@ -134,7 +134,7 @@ BinaryImageToLevelSetImageAdaptor<TInput, WhitakerSparseLevelSetImage<TOutput, T
LevelSetLayerType & layerPlus2 = this->m_LevelSet->GetLayer(outputLayer);
const auto plus2 = static_cast<LevelSetOutputType>(outputLayer);

auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);
constexpr auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);

ZeroFluxNeumannBoundaryCondition<InternalImageType> im_nbc;

Expand Down Expand Up @@ -197,7 +197,7 @@ BinaryImageToLevelSetImageAdaptor<TInput,

LevelSetLayerType & layer0 = this->m_LevelSet->GetLayer(LevelSetType::ZeroLayer());

auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);
constexpr auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);

ZeroFluxNeumannBoundaryCondition<InternalImageType> im_nbc;

Expand Down Expand Up @@ -260,7 +260,7 @@ BinaryImageToLevelSetImageAdaptor<TInput, WhitakerSparseLevelSetImage<TOutput, T
LevelSetLayerType & layerMinus1 = this->m_LevelSet->GetLayer(LevelSetType::MinusOneLayer());
LevelSetLayerType & layerPlus1 = this->m_LevelSet->GetLayer(LevelSetType::PlusOneLayer());

auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);
constexpr auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);

ZeroFluxNeumannBoundaryCondition<InternalImageType> im_nbc;

Expand Down Expand Up @@ -399,7 +399,7 @@ BinaryImageToLevelSetImageAdaptor<TInput, ShiSparseLevelSetImage<TInput::ImageDi
LevelSetLayerType & layerMinus1 = this->m_LevelSet->GetLayer(LevelSetType::MinusOneLayer());
LevelSetLayerType & layerPlus1 = this->m_LevelSet->GetLayer(LevelSetType::PlusOneLayer());

auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);
constexpr auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);

ZeroFluxNeumannBoundaryCondition<InternalImageType> im_nbc;

Expand Down Expand Up @@ -541,7 +541,7 @@ BinaryImageToLevelSetImageAdaptor<TInput, MalcolmSparseLevelSetImage<TInput::Ima

LevelSetLayerType & layer = this->m_LevelSet->GetLayer(LevelSetType::ZeroLayer());

auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);
constexpr auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);

ZeroFluxNeumannBoundaryCondition<InternalImageType> im_nbc;

Expand Down Expand Up @@ -603,7 +603,7 @@ BinaryImageToLevelSetImageAdaptor<TInput, MalcolmSparseLevelSetImage<TInput::Ima

ZeroFluxNeumannBoundaryCondition<InternalImageType> sp_nbc;

auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);
constexpr auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);

NeighborhoodIteratorType neighIt(radius, this->m_InternalImage, this->m_InternalImage->GetLargestPossibleRegion());

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6 changes: 3 additions & 3 deletions Modules/Segmentation/LevelSetsv4/include/itkUpdateMalcolmSparseLevelSet.hxx
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Expand Up @@ -169,7 +169,7 @@ UpdateMalcolmSparseLevelSet<VDimension, TEquationContainer>::EvolveWithUnPhasedP
// neighborhood iterator
ZeroFluxNeumannBoundaryCondition<LabelImageType> sp_nbc;

auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);
constexpr auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);

NeighborhoodIteratorType neighIt(radius, this->m_InternalImage, this->m_InternalImage->GetLargestPossibleRegion());

Expand Down Expand Up @@ -258,7 +258,7 @@ UpdateMalcolmSparseLevelSet<VDimension, TEquationContainer>::EvolveWithPhasedPro

ZeroFluxNeumannBoundaryCondition<LabelImageType> sp_nbc;

auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);
constexpr auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);

NeighborhoodIteratorType neighIt(radius, this->m_InternalImage, this->m_InternalImage->GetLargestPossibleRegion());

Expand Down Expand Up @@ -352,7 +352,7 @@ UpdateMalcolmSparseLevelSet<VDimension, TEquationContainer>::CompactLayersToSing

ZeroFluxNeumannBoundaryCondition<LabelImageType> sp_nbc;

auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);
constexpr auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);

NeighborhoodIteratorType neighIt(radius, this->m_InternalImage, this->m_InternalImage->GetLargestPossibleRegion());

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8 changes: 4 additions & 4 deletions Modules/Segmentation/LevelSetsv4/include/itkUpdateShiSparseLevelSet.hxx
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Expand Up @@ -65,7 +65,7 @@ UpdateShiSparseLevelSet<VDimension, TEquationContainer>::Update()
// neighborhood iterator
ZeroFluxNeumannBoundaryCondition<LabelImageType> spNBC;

auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);
constexpr auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);

NeighborhoodIteratorType neighIt(radius, this->m_InternalImage, this->m_InternalImage->GetLargestPossibleRegion());

Expand Down Expand Up @@ -184,7 +184,7 @@ UpdateShiSparseLevelSet<VDimension, TEquationContainer>::UpdateLayerPlusOne()

ZeroFluxNeumannBoundaryCondition<LabelImageType> spNBC;

auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);
constexpr auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);

NeighborhoodIteratorType neighIt(radius, this->m_InternalImage, this->m_InternalImage->GetLargestPossibleRegion());

Expand Down Expand Up @@ -283,7 +283,7 @@ UpdateShiSparseLevelSet<VDimension, TEquationContainer>::UpdateLayerMinusOne()

ZeroFluxNeumannBoundaryCondition<LabelImageType> spNBC;

auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);
constexpr auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);

NeighborhoodIteratorType neighIt(radius, this->m_InternalImage, this->m_InternalImage->GetLargestPossibleRegion());

Expand Down Expand Up @@ -379,7 +379,7 @@ UpdateShiSparseLevelSet<VDimension, TEquationContainer>::Con(const LevelSetInput

ZeroFluxNeumannBoundaryCondition<LabelImageType> spNBC;

auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);
constexpr auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);

NeighborhoodIteratorType neighIt(radius, this->m_InternalImage, this->m_InternalImage->GetLargestPossibleRegion());

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16 changes: 8 additions & 8 deletions Modules/Segmentation/LevelSetsv4/include/itkUpdateWhitakerSparseLevelSet.hxx
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Expand Up @@ -104,7 +104,7 @@ UpdateWhitakerSparseLevelSet<VDimension, TLevelSetValueType, TEquationContainer>
/** todo: put neighborhood creation in protected method */
ZeroFluxNeumannBoundaryCondition<LabelImageType> spNBC;

auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);
constexpr auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);

NeighborhoodIteratorType neighIt(radius, this->m_InternalImage, this->m_InternalImage->GetLargestPossibleRegion());

Expand Down Expand Up @@ -194,7 +194,7 @@ UpdateWhitakerSparseLevelSet<VDimension, TLevelSetValueType, TEquationContainer>

ZeroFluxNeumannBoundaryCondition<LabelImageType> spNBC;

auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);
constexpr auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);

NeighborhoodIteratorType neighIt(radius, this->m_InternalImage, this->m_InternalImage->GetLargestPossibleRegion());

Expand Down Expand Up @@ -355,7 +355,7 @@ UpdateWhitakerSparseLevelSet<VDimension, TLevelSetValueType, TEquationContainer>

ZeroFluxNeumannBoundaryCondition<LabelImageType> spNBC;

auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);
constexpr auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);

NeighborhoodIteratorType neighIt(radius, this->m_InternalImage, this->m_InternalImage->GetLargestPossibleRegion());

Expand Down Expand Up @@ -460,7 +460,7 @@ UpdateWhitakerSparseLevelSet<VDimension, TLevelSetValueType, TEquationContainer>
{
ZeroFluxNeumannBoundaryCondition<LabelImageType> spNBC;

auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);
constexpr auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);

NeighborhoodIteratorType neighIt(radius, this->m_InternalImage, this->m_InternalImage->GetLargestPossibleRegion());

Expand Down Expand Up @@ -565,7 +565,7 @@ UpdateWhitakerSparseLevelSet<VDimension, TLevelSetValueType, TEquationContainer>
{
ZeroFluxNeumannBoundaryCondition<LabelImageType> spNBC;

auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);
constexpr auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);

NeighborhoodIteratorType neighIt(radius, this->m_InternalImage, this->m_InternalImage->GetLargestPossibleRegion());

Expand Down Expand Up @@ -669,7 +669,7 @@ UpdateWhitakerSparseLevelSet<VDimension, TLevelSetValueType, TEquationContainer>
{
ZeroFluxNeumannBoundaryCondition<LabelImageType> spNBC;

auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);
constexpr auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);

NeighborhoodIteratorType neighIt(radius, this->m_InternalImage, this->m_InternalImage->GetLargestPossibleRegion());

Expand Down Expand Up @@ -796,7 +796,7 @@ UpdateWhitakerSparseLevelSet<VDimension, TLevelSetValueType, TEquationContainer>
{
ZeroFluxNeumannBoundaryCondition<LabelImageType> spNBC;

auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);
constexpr auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);

NeighborhoodIteratorType neighIt(radius, this->m_InternalImage, this->m_InternalImage->GetLargestPossibleRegion());

Expand Down Expand Up @@ -853,7 +853,7 @@ UpdateWhitakerSparseLevelSet<VDimension, TLevelSetValueType, TEquationContainer>
{
ZeroFluxNeumannBoundaryCondition<LabelImageType> spNBC;

auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);
constexpr auto radius = MakeFilled<typename NeighborhoodIteratorType::RadiusType>(1);

NeighborhoodIteratorType neighIt(radius, this->m_InternalImage, this->m_InternalImage->GetLargestPossibleRegion());

Expand Down