COMP: Remove unused variables and set override.

Author: hjmjohnson

src/Filtering/Convolution/NormalizedCorrelationOfMaskedImage/Code.cxx

@@ -40,7 +40,7 @@ void CreateImageOfSquare(ImageType* const image, const itk::Index<2>& cornerOfSq
 template <typename TImage>
 void WriteImage(const TImage* const image, const std::string& filename);
 
-int main(int argc, char *argv[])
+int main(int , char *[])
 {
     // Setup mask
     MaskType::Pointer mask = MaskType::New();

src/Numerics/Optimizers/ExampleCostFunction.h

@@ -24,14 +24,14 @@ namespace itk
         /** Run-time type information (and related methods). */
         itkTypeMacro(ExampleCostFunction2, SingleValuedCostfunction);
 
-        unsigned int GetNumberOfParameters(void) const { return 2; } // itk::CostFunction
+        unsigned int GetNumberOfParameters(void) const override { return 2; } // itk::CostFunction
 
-        MeasureType GetValue(const ParametersType & parameters) const {
+        MeasureType GetValue(const ParametersType & parameters) const override {
             return pow(parameters[0]+5, 2)+pow(parameters[1]-7, 2)+5;
         }
 
         void GetDerivative(const ParametersType &,
-                           DerivativeType & derivative ) const {
+                           DerivativeType & /*derivative*/ ) const override {
             throw itk::ExceptionObject( __FILE__, __LINE__, "No derivative is available for this cost function.");
         }
 
@@ -46,4 +46,4 @@ namespace itk
 
 } // end namespace itk
 
-#endif
+#endif