ENH: Initialize all arrays in LabelSetUtils.h file

Initialize all arrays in `LabelSetUtils.h` file.

Author: jhlegarreta

include/itkLabelSetUtils.h

@@ -259,8 +259,9 @@ doOneDimensionErodeFirstPass(TInIter &          inputIterator,
   //  const RealType magnitude = (m_MagnitudeSign * iscale * iscale)/(2.0 *
   // Sigma);
   const RealType  magnitude = (m_MagnitudeSign * iscale * iscale) / (2.0);
-  LineBufferType  LineBuf(LineLength);
-  LabelBufferType LabBuf(LineLength);
+  const RealType  initValue = 0.0;
+  LineBufferType  LineBuf(LineLength, initValue);
+  LabelBufferType LabBuf(LineLength, initValue);
 
   inputIterator.SetDirection(direction);
   outputIterator.SetDirection(direction);
@@ -396,10 +397,11 @@ doOneDimensionDilateFirstPass(TInIter &          inputIterator,
   // const RealType magnitude = (m_MagnitudeSign * iscale * iscale)/(2.0 *
   // Sigma);
   const RealType  magnitude = (m_MagnitudeSign * iscale * iscale) / (2.0);
-  LineBufferType  LineBuf(LineLength);
-  LabelBufferType LabBuf(LineLength);
-  LineBufferType  tmpLineBuf(LineLength);
-  LabelBufferType newLabBuf(LineLength);
+  const RealType  initValue = 0.0;
+  LineBufferType  LineBuf(LineLength, initValue);
+  LabelBufferType LabBuf(LineLength, initValue);
+  LineBufferType  tmpLineBuf(LineLength, initValue);
+  LabelBufferType newLabBuf(LineLength, initValue);
 
   inputIterator.SetDirection(direction);
   outputIterator.SetDirection(direction);
@@ -479,7 +481,7 @@ doOneDimensionErode(TInIter &          inputIterator,
   }
   const RealType  magnitude = (m_MagnitudeSign * iscale * iscale) / (2.0 * Sigma);
   LineBufferType  LineBuf(LineLength);
-  LabelBufferType LabBuf(LineLength);
+  LabelBufferType LabBuf(LineLength, 0.0);
 
   inputIterator.SetDirection(direction);
   outputDistIterator.SetDirection(direction);
@@ -620,11 +622,12 @@ doOneDimensionDilate(TInIter &          inputIterator,
   // restructure equation to reduce numerical error
   const RealType magnitude = (m_MagnitudeSign * iscale * iscale) / (2.0 * Sigma);
   //  const RealType magnitude = (m_MagnitudeSign * iscale * iscale)/(2.0 );
-  LineBufferType  LineBuf(LineLength);
-  LabelBufferType LabBuf(LineLength);
-  LineBufferType  tmpLineBuf(LineLength);
-  LabelBufferType newLabBuf(LineLength);
-  LabelBufferType tmpLabBuf(LineLength);
+  const RealType  initValue = 0.0;
+  LineBufferType  LineBuf(LineLength, initValue);
+  LabelBufferType LabBuf(LineLength, initValue);
+  LineBufferType  tmpLineBuf(LineLength, initValue);
+  LabelBufferType newLabBuf(LineLength, initValue);
+  LabelBufferType tmpLabBuf(LineLength, initValue);
 
   inputIterator.SetDirection(direction);
   inputDistIterator.SetDirection(direction);