Fix Coverity uninitialized member warnings

Author: nyalldawson

src/analysis/vector/qgszonalstatistics.cpp

@@ -34,21 +34,8 @@ QgsZonalStatistics::QgsZonalStatistics( QgsVectorLayer* polygonLayer, QgsRasterL
     , mRasterBand( rasterBand )
     , mPolygonLayer( polygonLayer )
     , mAttributePrefix( attributePrefix )
-    , mInputNodataValue( -1 )
     , mStatistics( stats )
-{
-
-}
-
-QgsZonalStatistics::QgsZonalStatistics()
-    : mRasterLayer( nullptr )
-    , mRasterBand( 0 )
-    , mPolygonLayer( nullptr )
-    , mInputNodataValue( -1 )
-    , mStatistics( QgsZonalStatistics::All )
-{
-
-}
+{}
 
 int QgsZonalStatistics::calculateStatistics( QProgressDialog* p )
 {

src/analysis/vector/qgszonalstatistics.h

@@ -67,7 +67,7 @@ class ANALYSIS_EXPORT QgsZonalStatistics
     int calculateStatistics( QProgressDialog* p );
 
   private:
-    QgsZonalStatistics();
+    QgsZonalStatistics() = default;
 
     class FeatureStats
     {
@@ -128,15 +128,15 @@ class ANALYSIS_EXPORT QgsZonalStatistics
 
     QString getUniqueFieldName( const QString& fieldName, const QList<QgsField>& newFields );
 
-    QgsRasterLayer* mRasterLayer;
-    QgsRasterDataProvider* mRasterProvider;
-    //! Raster band to calculate statistics from (defaults to 1)
-    int mRasterBand;
-    QgsVectorLayer* mPolygonLayer;
+    QgsRasterLayer* mRasterLayer = nullptr;
+    QgsRasterDataProvider* mRasterProvider = nullptr;
+    //! Raster band to calculate statistics
+    int mRasterBand = 0;
+    QgsVectorLayer* mPolygonLayer = nullptr;
     QString mAttributePrefix;
     //! The nodata value of the input layer
-    float mInputNodataValue;
-    Statistics mStatistics;
+    float mInputNodataValue = -1;
+    Statistics mStatistics = QgsZonalStatistics::All;
 };
 
 Q_DECLARE_OPERATORS_FOR_FLAGS( QgsZonalStatistics::Statistics )

tests/src/analysis/testqgszonalstatistics.cpp

@@ -30,9 +30,6 @@ class TestQgsZonalStatistics : public QObject
 {
     Q_OBJECT
 
-  public:
-    TestQgsZonalStatistics();
-
   private slots:
     void initTestCase();
     void cleanupTestCase();
@@ -42,16 +39,10 @@ class TestQgsZonalStatistics : public QObject
     void testStatistics();
 
   private:
-    QgsVectorLayer* mVectorLayer;
-    QgsRasterLayer* mRasterLayer;
+    QgsVectorLayer* mVectorLayer = nullptr;
+    QgsRasterLayer* mRasterLayer = nullptr;
 };
 
-TestQgsZonalStatistics::TestQgsZonalStatistics()
-    : mVectorLayer( nullptr )
-{
-
-}
-
 void TestQgsZonalStatistics::initTestCase()
 {
   QgsApplication::init();