BUG: Fix backwards nullptr test before SetRequestedRegion

hjmjohnson · hjmjohnson · commit 329f8faa67c3 · 2025-05-27T13:26:15.000-05:00
The requested region of the input can only be set if the pointer to
the input is not nullpr.

```txt
LesionSizingToolkit/include/itkLesionSegmentationImageFilter8.hxx:105:33:
warning: ‘this’ pointer is null [-Wnonnull]

inputPtr-&gt;SetRequestedRegion(inputPtr-&gt;GetLargestPossibleRegion());
```
diff --git a/include/itkLesionSegmentationImageFilter8.hxx b/include/itkLesionSegmentationImageFilter8.hxx
@@ -97,7 +97,7 @@ LesionSegmentationImageFilter8<TInputImage, TOutputImage>::GenerateInputRequeste
   // call the superclass' implementation of this method
   Superclass::GenerateInputRequestedRegion();
 
-  if (!this->GetInput())
+  if (this->GetInput() != nullptr)
   {
     typename InputImageType::Pointer inputPtr = const_cast<TInputImage *>(this->GetInput());
 

Original file line number	Diff line number	Diff line change
`@@ -97,7 +97,7 @@ LesionSegmentationImageFilter8<TInputImage, TOutputImage>::GenerateInputRequeste`
`97`	`97`	`// call the superclass' implementation of this method`
`98`	`98`	`Superclass::GenerateInputRequestedRegion();`
`99`	`99`
`100`		`- if (!this->GetInput())`
	`100`	`+ if (this->GetInput() != nullptr)`
`101`	`101`	`{`
`102`	`102`	`typename InputImageType::Pointer inputPtr = const_cast<TInputImage *>(this->GetInput());`
`103`	`103`