From 0a057d7f01307f5fd2b6ba553e8c85cbed752104 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?D=C5=BEenan=20Zuki=C4=87?= <dzenan.zukic@kitware.com>
Date: Wed, 26 Apr 2023 16:05:02 -0400
Subject: [PATCH] STYLE: Use trailing return type instead of typename +
 dependent type

---
 .../itkMorphologicalContourInterpolator.hxx   | 41 +++++++++++--------
 1 file changed, 23 insertions(+), 18 deletions(-)

diff --git a/include/itkMorphologicalContourInterpolator.hxx b/include/itkMorphologicalContourInterpolator.hxx
index 82fa91c..15137fc 100644
--- a/include/itkMorphologicalContourInterpolator.hxx
+++ b/include/itkMorphologicalContourInterpolator.hxx
@@ -243,8 +243,8 @@ MorphologicalContourInterpolator< TImage >::Extrapolate( int axis, TImage* out,
 } // >::Extrapolate
 
 template< typename TImage >
-typename MorphologicalContourInterpolator< TImage >::BoolSliceType::Pointer
-MorphologicalContourInterpolator< TImage >::Dilate1( typename BoolSliceType::Pointer& seed, typename BoolSliceType::Pointer& mask )
+auto
+MorphologicalContourInterpolator< TImage >::Dilate1( typename BoolSliceType::Pointer& seed, typename BoolSliceType::Pointer& mask ) -> typename BoolSliceType::Pointer
 {
   // set up structuring element for dilation
   using CrossStructuringElementType = BinaryCrossStructuringElement< typename BoolSliceType::PixelType, BoolSliceType::ImageDimension >;
@@ -326,8 +326,9 @@ MorphologicalContourInterpolator< TImage >::GenerateDilationSequence( typename B
 }
 
 template< typename TImage >
-typename MorphologicalContourInterpolator< TImage >::BoolSliceType::Pointer
-MorphologicalContourInterpolator< TImage >::FindMedianImageDilations( typename BoolSliceType::Pointer& intersection, typename BoolSliceType::Pointer& iMask, typename BoolSliceType::Pointer& jMask )
+auto
+MorphologicalContourInterpolator< TImage >::FindMedianImageDilations( typename BoolSliceType::Pointer& intersection, typename BoolSliceType::Pointer& iMask, typename BoolSliceType::Pointer& jMask ) ->
+  typename BoolSliceType::Pointer
 {
   std::vector< typename BoolSliceType::Pointer > iSeq = GenerateDilationSequence( intersection, iMask );
   std::vector< typename BoolSliceType::Pointer > jSeq = GenerateDilationSequence( intersection, jMask );
@@ -373,8 +374,8 @@ MorphologicalContourInterpolator< TImage >::FindMedianImageDilations( typename B
 } // >::FindMedianImageDilations
 
 template< typename TImage >
-typename MorphologicalContourInterpolator< TImage >::FloatSliceType::Pointer
-MorphologicalContourInterpolator< TImage >::MaurerDM( typename BoolSliceType::Pointer& mask )
+auto
+MorphologicalContourInterpolator< TImage >::MaurerDM( typename BoolSliceType::Pointer& mask ) -> typename FloatSliceType::Pointer
 {
   using FilterType = itk::SignedMaurerDistanceMapImageFilter< BoolSliceType, FloatSliceType >;
   thread_local typename FilterType::Pointer filter = FilterType::New();
@@ -387,8 +388,9 @@ MorphologicalContourInterpolator< TImage >::MaurerDM( typename BoolSliceType::Po
 }
 
 template< typename TImage >
-typename MorphologicalContourInterpolator< TImage >::BoolSliceType::Pointer
-MorphologicalContourInterpolator< TImage >::FindMedianImageDistances( typename BoolSliceType::Pointer& intersection, typename BoolSliceType::Pointer& iMask, typename BoolSliceType::Pointer& jMask )
+auto
+MorphologicalContourInterpolator< TImage >::FindMedianImageDistances( typename BoolSliceType::Pointer& intersection, typename BoolSliceType::Pointer& iMask, typename BoolSliceType::Pointer& jMask ) ->
+  typename BoolSliceType::Pointer
 {
   // calculate distance field
   typename FloatSliceType::Pointer sdf = MaurerDM( intersection );
@@ -497,8 +499,8 @@ MorphologicalContourInterpolator< TImage >::FindMedianImageDistances( typename B
 } // >::FindMedianImageDistances
 
 template< typename TImage >
-typename MorphologicalContourInterpolator< TImage >::SliceType::RegionType
-MorphologicalContourInterpolator< TImage >::BoundingBox( itk::SmartPointer< SliceType > image )
+auto
+MorphologicalContourInterpolator< TImage >::BoundingBox( itk::SmartPointer< SliceType > image ) -> typename SliceType::RegionType
 {
   typename SliceType::RegionType                 newRegion = image->GetLargestPossibleRegion();
   typename SliceType::IndexType                  minInd = newRegion.GetIndex() + newRegion.GetSize();
@@ -948,8 +950,9 @@ MorphologicalContourInterpolator< TImage >::Interpolate1toN( int axis, TImage* o
 } // >::Interpolate1toN
 
 template< typename TImage >
-typename MorphologicalContourInterpolator< TImage >::SliceType::Pointer
-MorphologicalContourInterpolator< TImage >::TranslateImage( typename SliceType::Pointer& image, const typename SliceType::IndexType& translation, typename SliceType::RegionType newRegion )
+auto
+MorphologicalContourInterpolator< TImage >::TranslateImage( typename SliceType::Pointer& image, const typename SliceType::IndexType& translation, typename SliceType::RegionType newRegion ) ->
+  typename SliceType::Pointer
 {
   typename SliceType::Pointer result = SliceType::New();
   result->CopyInformation( image );
@@ -1046,8 +1049,8 @@ MorphologicalContourInterpolator< TImage >::CardinalSymmetricDifference( typenam
 }
 
 template< typename TImage >
-typename MorphologicalContourInterpolator< TImage >::SliceType::IndexType
-MorphologicalContourInterpolator< TImage >::Centroid( typename SliceType::Pointer& conn, const PixelList& regionIds )
+auto
+MorphologicalContourInterpolator< TImage >::Centroid( typename SliceType::Pointer& conn, const PixelList& regionIds ) -> typename SliceType::IndexType
 {
   ImageRegionConstIteratorWithIndex< SliceType > it( conn, conn->GetLargestPossibleRegion() );
   IndexValueType                                 ind[SliceType::ImageDimension] = { 0 }; // all components are initialized to zero
@@ -1080,8 +1083,9 @@ MorphologicalContourInterpolator< TImage >::Centroid( typename SliceType::Pointe
 } // >::Centroid
 
 template< typename TImage >
-typename MorphologicalContourInterpolator< TImage >::SliceType::IndexType
-MorphologicalContourInterpolator< TImage >::Align( typename SliceType::Pointer& iConn, typename TImage::PixelType iRegionId, typename SliceType::Pointer& jConn, const PixelList& jRegionIds )
+auto
+MorphologicalContourInterpolator< TImage >::Align( typename SliceType::Pointer& iConn, typename TImage::PixelType iRegionId, typename SliceType::Pointer& jConn, const PixelList& jRegionIds ) ->
+  typename SliceType::IndexType
 {
   // calculate centroids
   PixelList iRegionIds;
@@ -1164,8 +1168,9 @@ MorphologicalContourInterpolator< TImage >::Align( typename SliceType::Pointer&
 } // >::Align
 
 template< typename TImage >
-typename MorphologicalContourInterpolator< TImage >::SliceType::Pointer
-MorphologicalContourInterpolator< TImage >::RegionedConnectedComponents( const typename TImage::RegionType& region, typename TImage::PixelType label, IdentifierType& objectCount )
+auto
+MorphologicalContourInterpolator< TImage >::RegionedConnectedComponents( const typename TImage::RegionType& region, typename TImage::PixelType label, IdentifierType& objectCount ) ->
+  typename SliceType::Pointer
 {
   m_RoI->SetExtractionRegion( region );
   m_RoI->SetInput( this->GetInput() );