Merge pull request #381 from N-Dekker/Replace-postfix-by-prefix-incre…

…ment-CXX

STYLE: Replace postfix by prefix increment in C++ `for` loops

src/Core/Common/ComputeTimeBetweenPoints/Code.cxx

@@ -25,7 +25,7 @@
 void
 LongFunction()
 {
-  for (int i = 0; i < itk::NumericTraits<int>::max() / 100; i++)
+  for (int i = 0; i < itk::NumericTraits<int>::max() / 100; ++i)
   {
     double a = 0;
     (void)a;

src/Core/Common/ConvertArrayToImage/Code.cxx

@@ -66,13 +66,13 @@ main()
   const double radius2 = radius * radius;
   PixelType *  it = localBuffer;
 
-  for (unsigned int z = 0; z < size[2]; z++)
+  for (unsigned int z = 0; z < size[2]; ++z)
   {
     const double dz = static_cast<double>(z) - static_cast<double>(size[2]) / 2.0;
-    for (unsigned int y = 0; y < size[1]; y++)
+    for (unsigned int y = 0; y < size[1]; ++y)
     {
       const double dy = static_cast<double>(y) - static_cast<double>(size[1]) / 2.0;
-      for (unsigned int x = 0; x < size[0]; x++)
+      for (unsigned int x = 0; x < size[0]; ++x)
       {
         const double dx = static_cast<double>(x) - static_cast<double>(size[0]) / 2.0;
         const double d2 = dx * dx + dy * dy + dz * dz;

src/Core/Common/CovariantVectorNorm/Code.cxx

@@ -45,7 +45,7 @@ main()
   // another way to normalize
   if (vnorm != 0.)
   {
-    for (unsigned int i = 0; i < u.GetNumberOfComponents(); i++)
+    for (unsigned int i = 0; i < u.GetNumberOfComponents(); ++i)
     {
       u[i] /= vnorm;
     }

src/Core/Common/CreateABackwardDifferenceOperator/Code.cxx

@@ -39,7 +39,7 @@ main()
 
   std::cout << backwardDifferenceOperator << std::endl;
 
-  for (unsigned int i = 0; i < 9; i++)
+  for (unsigned int i = 0; i < 9; ++i)
   {
     std::cout << backwardDifferenceOperator.GetOffset(i) << " " << backwardDifferenceOperator.GetElement(i)
               << std::endl;

src/Core/Common/CreateDerivativeKernel/Code.cxx

@@ -31,7 +31,7 @@ main()
 
   std::cout << derivativeOperator << std::endl;
 
-  for (unsigned int i = 0; i < 9; i++)
+  for (unsigned int i = 0; i < 9; ++i)
   {
     std::cout << derivativeOperator.GetOffset(i) << " " << derivativeOperator.GetElement(i) << std::endl;
   }

src/Core/Common/CreateForwardDifferenceKernel/Code.cxx

@@ -31,7 +31,7 @@ main()
 
   std::cout << forwardDifferenceOperator << std::endl;
 
-  for (unsigned int i = 0; i < 9; i++)
+  for (unsigned int i = 0; i < 9; ++i)
   {
     std::cout << forwardDifferenceOperator.GetOffset(i) << " " << forwardDifferenceOperator.GetElement(i) << std::endl;
   }

src/Core/Common/CreateGaussianDerivativeKernel/Code.cxx

@@ -31,7 +31,7 @@ main()
 
   std::cout << gaussianDerivativeOperator << std::endl;
 
-  for (unsigned int i = 0; i < 9; i++)
+  for (unsigned int i = 0; i < 9; ++i)
   {
     std::cout << gaussianDerivativeOperator.GetOffset(i) << " " << gaussianDerivativeOperator.GetElement(i)
               << std::endl;

src/Core/Common/CreateGaussianKernel/Code.cxx

@@ -31,7 +31,7 @@ main()
 
   std::cout << gaussianOperator << std::endl;
 
-  for (unsigned int i = 0; i < 9; i++)
+  for (unsigned int i = 0; i < 9; ++i)
   {
     std::cout << gaussianOperator.GetOffset(i) << " " << gaussianOperator.GetElement(i) << std::endl;
   }

src/Core/Common/CreateLaplacianKernel/Code.cxx

@@ -30,7 +30,7 @@ main()
 
   std::cout << laplacianOperator << std::endl;
 
-  for (unsigned int i = 0; i < laplacianOperator.GetSize()[0] * laplacianOperator.GetSize()[1]; i++)
+  for (unsigned int i = 0; i < laplacianOperator.GetSize()[0] * laplacianOperator.GetSize()[1]; ++i)
   {
     std::cout << laplacianOperator.GetOffset(i) << " " << laplacianOperator.GetElement(i) << std::endl;
   }

src/Core/Common/CreateSobelKernel/Code.cxx

@@ -29,7 +29,7 @@ main()
 
   std::cout << sobelOperator << std::endl;
 
-  for (unsigned int i = 0; i < 9; i++)
+  for (unsigned int i = 0; i < 9; ++i)
   {
     std::cout << sobelOperator.GetElement(i) << std::endl;
   }

src/Core/Common/DemonstrateAllOperators/Code.cxx

@@ -64,9 +64,9 @@ main()
     // operators[operatorId]->Print(std::cout);
     // std::cout << operators[operatorId]->GetNameOfClass() << std::endl;
 
-    for (auto i = -operatorId->GetSize()[0] / 2; i <= operatorId->GetSize()[0] / 2; i++)
+    for (auto i = -operatorId->GetSize()[0] / 2; i <= operatorId->GetSize()[0] / 2; ++i)
     {
-      for (auto j = -operatorId->GetSize()[1] / 2; j <= operatorId->GetSize()[1] / 2; j++)
+      for (auto j = -operatorId->GetSize()[1] / 2; j <= operatorId->GetSize()[1] / 2; ++j)
       {
         itk::Offset<2> offset;
         offset[0] = i;

src/Core/Common/DisplayImage/Code.cxx

@@ -80,9 +80,9 @@ CreateImage(ImageType * const image)
   image->Allocate();
 
   // Make a square
-  for (unsigned int r = 40; r < 100; r++)
+  for (unsigned int r = 40; r < 100; ++r)
   {
-    for (unsigned int c = 40; c < 100; c++)
+    for (unsigned int c = 40; c < 100; ++c)
     {
       ImageType::IndexType pixelIndex;
       pixelIndex[0] = r;

src/Core/Common/ImportPixelBufferIntoAnImage/Code.cxx

@@ -73,10 +73,10 @@ main(int argc, char * argv[])
   const double radius2 = radius * radius;
   PixelType *  it = localBuffer;
 
-  for (unsigned int y = 0; y < size[1]; y++)
+  for (unsigned int y = 0; y < size[1]; ++y)
   {
     const double dy = static_cast<double>(y) - static_cast<double>(size[1]) / 2.0;
-    for (unsigned int x = 0; x < size[0]; x++)
+    for (unsigned int x = 0; x < size[0]; ++x)
     {
       const double dx = static_cast<double>(x) - static_cast<double>(size[0]) / 2.0;
       const double d2 = dx * dx + dy * dy;

src/Core/Common/IterateRegionWithNeighborhood/Code.cxx

@@ -67,7 +67,7 @@ main(int argc, char * argv[])
     // Set the current pixel to white
     iterator.SetCenterPixel(255);
 
-    for (unsigned int i = 0; i < 9; i++)
+    for (unsigned int i = 0; i < 9; ++i)
     {
       ImageType::IndexType index = iterator.GetIndex(i);
       std::cout << index[0] << " " << index[1] << std::endl;

src/Core/Common/IterateWithNeighborhoodWithoutAccess/Code.cxx

@@ -53,7 +53,7 @@ main(int argc, char * argv[])
 
   while (!iterator.IsAtEnd())
   {
-    for (unsigned int i = 0; i < 9; i++)
+    for (unsigned int i = 0; i < 9; ++i)
     {
       ImageType::IndexType index = iterator.GetIndex(i);
       std::cout << index[0] << " " << index[1] << std::endl;

src/Core/Common/MakeOutOfBoundsPixelsReturnConstValue/Code.cxx

@@ -62,7 +62,7 @@ main()
 
   while (!iterator.IsAtEnd())
   {
-    for (unsigned int i = 0; i < 9; i++)
+    for (unsigned int i = 0; i < 9; ++i)
     {
       ImageType::IndexType index = iterator.GetIndex(i);
 

src/Core/Common/MiniPipeline/Code.cxx

@@ -71,9 +71,9 @@ CreateImage(TImage * const image)
   image->Allocate();
 
   // Make another square
-  for (unsigned int r = 40; r < 100; r++)
+  for (unsigned int r = 40; r < 100; ++r)
   {
-    for (unsigned int c = 40; c < 100; c++)
+    for (unsigned int c = 40; c < 100; ++c)
     {
       typename TImage::IndexType pixelIndex;
       pixelIndex[0] = r;

src/Core/Common/PermuteSequenceOfIndices/Code.cxx

@@ -24,15 +24,15 @@ main()
 
   std::cout << std::endl;
 
-  for (unsigned int i = 0; i < 5; i++)
+  for (unsigned int i = 0; i < 5; ++i)
   {
     std::cout << rp[i] << " ";
   }
   std::cout << std::endl << std::endl;
 
   rp.Shuffle();
   std::cout << "After shuffle" << std::endl;
-  for (unsigned int i = 0; i < 5; i++)
+  for (unsigned int i = 0; i < 5; ++i)
   {
     std::cout << rp[i] << " ";
   }

src/Core/Common/ReadAPointSet/Code.cxx

@@ -91,7 +91,7 @@ main(int argc, char * argv[])
   }
 
   // Retrieve points
-  for (unsigned int i = 0; i < numberOfPoints; i++)
+  for (unsigned int i = 0; i < numberOfPoints; ++i)
   {
     PointType pp;
     bool      pointExists = mesh->GetPoint(i, &pp);

src/Core/Common/SetPixelValueInOneImage/Code.cxx

@@ -54,7 +54,7 @@ main(int argc, char * argv[])
 
   ImageType::IndexType pixelIndex;
 
-  for (ImageType::IndexValueType r = 0; r < 50; r++)
+  for (ImageType::IndexValueType r = 0; r < 50; ++r)
   {
     pixelIndex[0] = 4 * r;
     pixelIndex[1] = 4 * r;
@@ -67,7 +67,7 @@ main(int argc, char * argv[])
     image->SetPixel(pixelIndex, 255);
   }
 
-  for (ImageType::IndexValueType r = 0; r < 25; r++)
+  for (ImageType::IndexValueType r = 0; r < 25; ++r)
   {
     pixelIndex[0] = 8 * r;
     pixelIndex[1] = 200 + 4 * r;

src/Core/Common/UseParallelizeImageRegion/Code.cxx

@@ -62,7 +62,7 @@ segmentationAndCustomColorization(InputImageType::Pointer inImage)
         OutputPixelType             p;
         p.SetAlpha(iIt.Get());
         static_assert(Dimension <= 3, "Dimension has to be 2 or 3");
-        for (unsigned d = 0; d < Dimension; d++)
+        for (unsigned d = 0; d < Dimension; ++d)
         {
           p.SetElement(d, ind[d]);
         }

src/Core/Common/VariableLengthVector/Code.cxx

@@ -33,7 +33,7 @@ main()
   v[1] = 2;
   std::cout << v << std::endl;
 
-  for (unsigned int i = 0; i < v.Size(); i++)
+  for (unsigned int i = 0; i < v.Size(); ++i)
   {
     std::cout << v[i] << " ";
   }
@@ -81,7 +81,7 @@ VariableLengthVectorToVector()
   using FixedVectorType = itk::Vector<double, 2>;
   FixedVectorType fixedLengthVector;
 
-  for (unsigned int i = 0; i < FixedVectorType::GetVectorDimension(); i++)
+  for (unsigned int i = 0; i < FixedVectorType::GetVectorDimension(); ++i)
   {
     fixedLengthVector[i] = variableLengthVector[i];
   }

src/Core/ImageFunction/LinearlyInterpolatePositionInImage/Code.cxx

@@ -60,7 +60,7 @@ CreateImage(ImageType::Pointer image)
   image->SetRegions(region);
   image->Allocate();
 
-  for (unsigned int i = 0; i < 10; i++)
+  for (unsigned int i = 0; i < 10; ++i)
   {
     ImageType::IndexType pixelIndex;
     pixelIndex[0] = i;

src/Core/ImageFunction/MultiplyKernelWithAnImageAtLocation/Code.cxx

@@ -87,9 +87,9 @@ CreateImage(UnsignedCharImageType::Pointer image)
   image->FillBuffer(0);
 
   // Make a square
-  for (unsigned int r = 20; r < 80; r++)
+  for (unsigned int r = 20; r < 80; ++r)
   {
-    for (unsigned int c = 20; c < 80; c++)
+    for (unsigned int c = 20; c < 80; ++c)
     {
       UnsignedCharImageType::IndexType pixelIndex;
       pixelIndex[0] = r;

src/Core/QuadEdgeMesh/CreateTriangularQuadEdgeMesh/Code.cxx

@@ -53,11 +53,11 @@ main(int argc, char * argv[])
   using PointIdentifier = MeshType::PointIdentifier;
   PointIdentifier k = 0;
 
-  for (int i = 0; i < 10; i++)
+  for (int i = 0; i < 10; ++i)
   {
     p[0] = static_cast<CoordType>(i);
 
-    for (int j = 0; j < 10; j++)
+    for (int j = 0; j < 10; ++j)
     {
       p[1] = static_cast<CoordType>(j);
       points->SetElement(k, p);
@@ -69,9 +69,9 @@ main(int argc, char * argv[])
 
   k = 0;
 
-  for (int i = 0; i < 9; i++)
+  for (int i = 0; i < 9; ++i)
   {
-    for (int j = 0; j < 9; j++)
+    for (int j = 0; j < 9; ++j)
     {
       mesh->AddFaceTriangle(k, k + 1, k + 11);
       mesh->AddFaceTriangle(k, k + 11, k + 10);

src/Core/SpatialObjects/Blob/Code.cxx

@@ -24,7 +24,7 @@ main(int itkNotUsed(argc), char * itkNotUsed(argv)[])
 
   // Create a list of points
   BlobType::BlobPointListType points;
-  for (unsigned int i = 0; i < 20; i++)
+  for (unsigned int i = 0; i < 20; ++i)
   {
     BlobType::BlobPointType point;
     point.SetPositionInObjectSpace(i, i);

src/Core/SpatialObjects/CreateALineSpatialObject/Code.cxx

@@ -35,7 +35,7 @@ main(int itkNotUsed(argc), char * itkNotUsed(argv)[])
 
   // Create a list of points
   std::vector<LineType::LinePointType> points;
-  for (unsigned int i = 0; i < 20; i++)
+  for (unsigned int i = 0; i < 20; ++i)
   {
     LineType::LinePointType point;
     point.SetPositionInObjectSpace(10, i);

src/Core/Transform/ApplyAffineTransformFromHomogeneousMatrixAndResample/Code.cxx

@@ -81,14 +81,14 @@ main(int argc, char * argv[])
 
   // get transform parameters from MatrixType
   TransformType::ParametersType parameters(Dimension * Dimension + Dimension);
-  for (unsigned int i = 0; i < Dimension; i++)
+  for (unsigned int i = 0; i < Dimension; ++i)
   {
-    for (unsigned int j = 0; j < Dimension; j++)
+    for (unsigned int j = 0; j < Dimension; ++j)
     {
       parameters[i * Dimension + j] = matrix[i][j];
     }
   }
-  for (unsigned int i = 0; i < Dimension; i++)
+  for (unsigned int i = 0; i < Dimension; ++i)
   {
     parameters[i + Dimension * Dimension] = matrix[i][Dimension];
   }

src/Core/Transform/GlobalRegistrationTwoImagesBSpline/Code.cxx

@@ -100,7 +100,7 @@ main(int itkNotUsed(argc), char * itkNotUsed(argv)[])
 
   TransformType::PhysicalDimensionsType fixedPhysicalDimensions;
   TransformType::MeshSizeType           meshSize;
-  for (unsigned int i = 0; i < ImageDimension; i++)
+  for (unsigned int i = 0; i < ImageDimension; ++i)
   {
     fixedPhysicalDimensions[i] =
       fixedImage->GetSpacing()[i] * static_cast<double>(fixedImage->GetLargestPossibleRegion().GetSize()[i] - 1);

src/Core/Transform/ScaleAnImage/Code.cxx

@@ -75,9 +75,9 @@ CreateImage(ImageType::Pointer image)
   image->FillBuffer(0);
 
   // Make a white square
-  for (unsigned int r = 40; r < 60; r++)
+  for (unsigned int r = 40; r < 60; ++r)
   {
-    for (unsigned int c = 40; c < 60; c++)
+    for (unsigned int c = 40; c < 60; ++c)
     {
       ImageType::IndexType pixelIndex;
       pixelIndex[0] = r;

src/Developer/ImageFilterY.hxx

@@ -14,15 +14,15 @@ ImageFilter<TImage>::GenerateData()
   InternalGaussianFilterPointer smoothingFilters[ImageDimension];
 
   // Instantiate all filters
-  for (unsigned int i = 0; i < ImageDimension; i++)
+  for (unsigned int i = 0; i < ImageDimension; ++i)
   {
     smoothingFilters[i] = InternalGaussianFilterType::New();
     smoothingFilters[i]->SetOrder(GaussianOrderEnum::ZeroOrder);
     smoothingFilters[i]->SetDirection(i);
   }
 
   // Connect all filters (start at 1 because 0th filter is connected to the input
-  for (unsigned int i = 1; i < ImageDimension; i++)
+  for (unsigned int i = 1; i < ImageDimension; ++i)
   {
     smoothingFilters[i]->SetInput(smoothingFilters[i - 1]->GetOutput());
   }

src/Developer/MiniPipeline.cxx

@@ -49,9 +49,9 @@ CreateImage(TImage * const image)
   image->Allocate();
 
   // Make another square
-  for (unsigned int r = 40; r < 100; r++)
+  for (unsigned int r = 40; r < 100; ++r)
   {
-    for (unsigned int c = 40; c < 100; c++)
+    for (unsigned int c = 40; c < 100; ++c)
     {
       typename TImage::IndexType pixelIndex;
       pixelIndex[0] = r;

src/Developer/itkOilPaintingImageFilter.hxx

@@ -52,7 +52,7 @@ OilPaintingImageFilter<TImage>::DynamicThreadedGenerateData(const typename TImag
 
   while (!out.IsAtEnd())
   {
-    for (unsigned int i = 0; i < m_NumberOfBins; i++)
+    for (unsigned int i = 0; i < m_NumberOfBins; ++i)
     {
       bins[i] = 0; // reset histogram
     }
@@ -69,7 +69,7 @@ OilPaintingImageFilter<TImage>::DynamicThreadedGenerateData(const typename TImag
     // find the peak
     unsigned           maxIndex = 0;
     unsigned long long maxBin = bins[0];
-    for (unsigned int i = 1; i < m_NumberOfBins; i++)
+    for (unsigned int i = 1; i < m_NumberOfBins; ++i)
     {
       if (bins[i] > maxBin)
       {