ENH: Adopt PrintNumericTrait helper toolkit-wide

Replace 513 PrintSelf NumericTraits-cast call sites across
221 files in Modules/ with calls to itk::print_helper::PrintNumericTrait.

The conversion targets only the canonical standalone-statement form
of the boilerplate
  os << indent << "NAME: "
     << static_cast<typename NumericTraits<TYPE>::PrintType>(EXPR)
     << std::endl;
in 1- and 2-line variants, with or without the typename keyword and
with or without the itk:: namespace qualifier.  Method-call
expressions (this->GetX()) are handled.  Chained streaming
statements that emit multiple members from a single os<<...
expression are intentionally not rewritten — those would not be a
drop-in replacement and are easier to leave under reviewer
discretion.

The cast-through-NumericTraits is preserved for char-family
integer types (rendered numerically) and elided for every other
type by the helper's constexpr branch.  No observable behavior
change at runtime.

Co-Authored-By: Jon Haitz Legarreta Gorroño <jhlegarreta@users.noreply.github.com>

Author: hjmjohnson

Modules/Core/Common/include/itkAnnulusOperator.h

@@ -20,6 +20,7 @@
 
 #include "itkNeighborhoodOperator.h"
 #include "itkVector.h"
+#include "itkPrintHelper.h"
 
 namespace itk
 {
@@ -225,13 +226,10 @@ class ITK_TEMPLATE_EXPORT AnnulusOperator : public NeighborhoodOperator<TPixel,
     os << indent << "Thickness: " << m_Thickness << std::endl;
     os << indent << "Normalize: " << m_Normalize << std::endl;
     os << indent << "BrightCenter: " << m_BrightCenter << std::endl;
-    os << indent << "InteriorValue: " << static_cast<typename NumericTraits<PixelType>::PrintType>(m_InteriorValue)
-       << std::endl;
-    os << indent << "AnnulusValue: " << static_cast<typename NumericTraits<PixelType>::PrintType>(m_AnnulusValue)
-       << std::endl;
-    os << indent << "ExteriorValue: " << static_cast<typename NumericTraits<PixelType>::PrintType>(m_ExteriorValue)
-       << std::endl;
-    os << indent << "Spacing: " << static_cast<typename NumericTraits<SpacingType>::PrintType>(m_Spacing) << std::endl;
+    itk::print_helper::PrintNumericTrait(os, indent, "InteriorValue", m_InteriorValue);
+    itk::print_helper::PrintNumericTrait(os, indent, "AnnulusValue", m_AnnulusValue);
+    itk::print_helper::PrintNumericTrait(os, indent, "ExteriorValue", m_ExteriorValue);
+    itk::print_helper::PrintNumericTrait(os, indent, "Spacing", m_Spacing);
   }
 
 protected:

Modules/Core/Common/include/itkBinaryThresholdSpatialFunction.hxx

@@ -19,6 +19,7 @@
 #define itkBinaryThresholdSpatialFunction_hxx
 
 
+#include "itkPrintHelper.h"
 namespace itk
 {
 
@@ -28,12 +29,8 @@ BinaryThresholdSpatialFunction<TFunction>::PrintSelf(std::ostream & os, Indent i
 {
   Superclass::PrintSelf(os, indent);
 
-  os << indent
-     << "LowerThreshold: " << static_cast<typename NumericTraits<FunctionOutputType>::PrintType>(m_LowerThreshold)
-     << std::endl;
-  os << indent
-     << "UpperThreshold: " << static_cast<typename NumericTraits<FunctionOutputType>::PrintType>(m_UpperThreshold)
-     << std::endl;
+  itk::print_helper::PrintNumericTrait(os, indent, "LowerThreshold", m_LowerThreshold);
+  itk::print_helper::PrintNumericTrait(os, indent, "UpperThreshold", m_UpperThreshold);
 
   itkPrintSelfObjectMacro(Function);
 }

Modules/Core/Common/include/itkImageDuplicator.hxx

@@ -19,6 +19,7 @@
 #define itkImageDuplicator_hxx
 
 #include "itkImageAlgorithm.h"
+#include "itkPrintHelper.h"
 
 namespace itk
 {
@@ -64,8 +65,7 @@ ImageDuplicator<TInputImage>::PrintSelf(std::ostream & os, Indent indent) const
   itkPrintSelfObjectMacro(InputImage);
   itkPrintSelfObjectMacro(DuplicateImage);
 
-  os << indent << "InternalImageTime: " << static_cast<NumericTraits<ModifiedTimeType>::PrintType>(m_InternalImageTime)
-     << std::endl;
+  itk::print_helper::PrintNumericTrait(os, indent, "InternalImageTime", m_InternalImageTime);
 }
 } // end namespace itk
 

Modules/Core/Common/include/itkMinimumMaximumImageCalculator.hxx

@@ -19,6 +19,7 @@
 #define itkMinimumMaximumImageCalculator_hxx
 
 #include "itkImageRegionConstIteratorWithIndex.h"
+#include "itkPrintHelper.h"
 
 namespace itk
 {
@@ -113,8 +114,8 @@ MinimumMaximumImageCalculator<TInputImage>::PrintSelf(std::ostream & os, Indent
 {
   Superclass::PrintSelf(os, indent);
 
-  os << indent << "Minimum: " << static_cast<typename NumericTraits<PixelType>::PrintType>(m_Minimum) << std::endl;
-  os << indent << "Maximum: " << static_cast<typename NumericTraits<PixelType>::PrintType>(m_Maximum) << std::endl;
+  itk::print_helper::PrintNumericTrait(os, indent, "Minimum", m_Minimum);
+  itk::print_helper::PrintNumericTrait(os, indent, "Maximum", m_Maximum);
   os << indent << "Index of Minimum: " << m_IndexOfMinimum << std::endl;
   os << indent << "Index of Maximum: " << m_IndexOfMaximum << std::endl;
   itkPrintSelfObjectMacro(Image);

Modules/Core/Common/include/itkNeighborhood.hxx

@@ -117,8 +117,8 @@ void
 Neighborhood<TPixel, VDimension, TContainer>::PrintSelf(std::ostream & os, Indent indent) const
 {
   using namespace itk::print_helper;
-  os << indent << "Size: " << static_cast<typename NumericTraits<SizeType>::PrintType>(m_Size) << std::endl;
-  os << indent << "Radius: " << static_cast<typename NumericTraits<SizeType>::PrintType>(m_Radius) << std::endl;
+  itk::print_helper::PrintNumericTrait(os, indent, "Size", m_Size);
+  itk::print_helper::PrintNumericTrait(os, indent, "Radius", m_Radius);
   os << indent << "StrideTable: " << m_StrideTable << std::endl;
   os << indent << "OffsetTable: " << m_OffsetTable << std::endl;
 }

Modules/Core/Common/include/itkObjectStore.hxx

@@ -134,9 +134,8 @@ ObjectStore<TObjectType>::PrintSelf(std::ostream & os, Indent indent) const
   Superclass::PrintSelf(os, indent);
 
   os << indent << "GrowthStrategy: " << m_GrowthStrategy << std::endl;
-  os << indent << "Size: " << static_cast<NumericTraits<SizeValueType>::PrintType>(m_Size) << std::endl;
-  os << indent << "LinearGrowthSize: " << static_cast<NumericTraits<SizeValueType>::PrintType>(m_LinearGrowthSize)
-     << std::endl;
+  itk::print_helper::PrintNumericTrait(os, indent, "Size", m_Size);
+  itk::print_helper::PrintNumericTrait(os, indent, "LinearGrowthSize", m_LinearGrowthSize);
   os << indent << "FreeList: " << m_FreeList << std::endl;
 }
 } // end namespace itk

Modules/Core/Common/include/itkPointSetToImageFilter.hxx

@@ -22,6 +22,7 @@
 #include "itkBoundingBox.h"
 #include "itkNumericTraits.h"
 #include "itkMath.h"
+#include "itkPrintHelper.h"
 
 namespace itk
 {
@@ -227,10 +228,8 @@ PointSetToImageFilter<TInputPointSet, TOutputImage>::PrintSelf(std::ostream & os
   os << indent << "Origin: " << m_Origin << std::endl;
   os << indent << "Spacing: " << m_Spacing << std::endl;
   os << indent << "Direction: " << m_Direction << std::endl;
-  os << indent << "Inside Value : " << static_cast<typename NumericTraits<ValueType>::PrintType>(m_InsideValue)
-     << std::endl;
-  os << indent << "Outside Value : " << static_cast<typename NumericTraits<ValueType>::PrintType>(m_OutsideValue)
-     << std::endl;
+  itk::print_helper::PrintNumericTrait(os, indent, "Inside Value ", m_InsideValue);
+  itk::print_helper::PrintNumericTrait(os, indent, "Outside Value ", m_OutsideValue);
 }
 } // end namespace itk
 

Modules/Core/Common/include/itkResourceProbe.hxx

@@ -58,24 +58,16 @@ ResourceProbe<ValueType, MeanType>::Print(std::ostream & os, Indent indent) cons
 {
   using namespace print_helper;
 
-  os << indent << "StartValue: " << static_cast<typename NumericTraits<ValueType>::PrintType>(m_StartValue)
-     << std::endl;
-  os << indent << "TotalValue: " << static_cast<typename NumericTraits<ValueType>::PrintType>(m_TotalValue)
-     << std::endl;
-  os << indent << "MinimumValue: " << static_cast<typename NumericTraits<ValueType>::PrintType>(m_MinimumValue)
-     << std::endl;
-  os << indent << "MaximumValue: " << static_cast<typename NumericTraits<ValueType>::PrintType>(m_MaximumValue)
-     << std::endl;
-  os << indent
-     << "StandardDeviation: " << static_cast<typename NumericTraits<ValueType>::PrintType>(m_StandardDeviation)
-     << std::endl;
-  os << indent << "StandardError: " << static_cast<typename NumericTraits<ValueType>::PrintType>(m_StandardError)
-     << std::endl;
-
-  os << indent << "NumberOfStarts: " << static_cast<NumericTraits<CountType>::PrintType>(m_NumberOfStarts) << std::endl;
-  os << indent << "NumberOfStops: " << static_cast<NumericTraits<CountType>::PrintType>(m_NumberOfStops) << std::endl;
-  os << indent << "NumberOfIteration: " << static_cast<NumericTraits<CountType>::PrintType>(m_NumberOfIteration)
-     << std::endl;
+  itk::print_helper::PrintNumericTrait(os, indent, "StartValue", m_StartValue);
+  itk::print_helper::PrintNumericTrait(os, indent, "TotalValue", m_TotalValue);
+  itk::print_helper::PrintNumericTrait(os, indent, "MinimumValue", m_MinimumValue);
+  itk::print_helper::PrintNumericTrait(os, indent, "MaximumValue", m_MaximumValue);
+  itk::print_helper::PrintNumericTrait(os, indent, "StandardDeviation", m_StandardDeviation);
+  itk::print_helper::PrintNumericTrait(os, indent, "StandardError", m_StandardError);
+
+  itk::print_helper::PrintNumericTrait(os, indent, "NumberOfStarts", m_NumberOfStarts);
+  itk::print_helper::PrintNumericTrait(os, indent, "NumberOfStops", m_NumberOfStops);
+  itk::print_helper::PrintNumericTrait(os, indent, "NumberOfIteration", m_NumberOfIteration);
 
   os << indent << "ProbeValueList: " << m_ProbeValueList << std::endl;
 

Modules/Core/GPUCommon/include/itkGPUReduction.hxx

@@ -19,6 +19,7 @@
 #define itkGPUReduction_hxx
 
 #include "itkMacro.h"
+#include "itkPrintHelper.h"
 
 // #define CPU_VERIFY
 
@@ -59,8 +60,8 @@ GPUReduction<TElement>::PrintSelf(std::ostream & os, Indent indent) const
   os << indent << "Size: " << m_Size << std::endl;
   itkPrintSelfBooleanMacro(SmallBlock);
 
-  os << indent << "GPUResult: " << static_cast<typename NumericTraits<TElement>::PrintType>(m_GPUResult) << std::endl;
-  os << indent << "CPUResult: " << static_cast<typename NumericTraits<TElement>::PrintType>(m_CPUResult) << std::endl;
+  itk::print_helper::PrintNumericTrait(os, indent, "GPUResult", m_GPUResult);
+  itk::print_helper::PrintNumericTrait(os, indent, "CPUResult", m_CPUResult);
 }
 
 template <typename TElement>

Modules/Core/ImageFunction/include/itkBSplineInterpolateImageFunction.hxx

@@ -59,9 +59,7 @@ BSplineInterpolateImageFunction<TImageType, TCoordinate, TCoefficientType>::Prin
   Superclass::PrintSelf(os, indent);
 
   os << indent << "Scratch: " << m_Scratch << std::endl;
-  os << indent
-     << "DataLength: " << static_cast<typename NumericTraits<typename TImageType::SizeType>::PrintType>(m_DataLength)
-     << std::endl;
+  itk::print_helper::PrintNumericTrait(os, indent, "DataLength", m_DataLength);
   os << indent << "SplineOrder: " << m_SplineOrder << std::endl;
 
   itkPrintSelfObjectMacro(Coefficients);
@@ -73,8 +71,7 @@ BSplineInterpolateImageFunction<TImageType, TCoordinate, TCoefficientType>::Prin
 
   itkPrintSelfBooleanMacro(UseImageDirection);
 
-  os << indent << "NumberOfWorkUnits: " << static_cast<NumericTraits<ThreadIdType>::PrintType>(m_NumberOfWorkUnits)
-     << std::endl;
+  itk::print_helper::PrintNumericTrait(os, indent, "NumberOfWorkUnits", m_NumberOfWorkUnits);
 
   os << indent << "ThreadedEvaluateIndex: ";
   if (m_ThreadedEvaluateIndex != nullptr)