diff --git a/src/app/nodetool/qgsvertexentry.cpp b/src/app/nodetool/qgsvertexentry.cpp
index 513b4c6959b..2aabffce434 100644
--- a/src/app/nodetool/qgsvertexentry.cpp
+++ b/src/app/nodetool/qgsvertexentry.cpp
@@ -21,6 +21,7 @@ QgsVertexEntry::QgsVertexEntry( QgsMapCanvas *canvas, QgsMapLayer *layer, QgsPoi
     , mEquals( -1 )
     , mInRubberBand( false )
     , mRubberBandNr( 0 )
+    , mRubberBandIndex( 0 )
     , mPenWidth( penWidth )
     , mToolTip( tooltip )
     , mType( type )
diff --git a/src/app/qgsdecorationnortharrow.h b/src/app/qgsdecorationnortharrow.h
index 0de1cf37cbc..8fd17ed4514 100644
--- a/src/app/qgsdecorationnortharrow.h
+++ b/src/app/qgsdecorationnortharrow.h
@@ -62,7 +62,7 @@ class APP_EXPORT QgsDecorationNorthArrow: public QgsDecorationItem
 
     // The amount of rotation for the north arrow
     int mRotationInt;
-    int pluginType;
+
     //! enable or disable the automatic setting of the arrow direction
     bool mAutomatic;
     // The placement index and translated text
diff --git a/src/app/qgsdiagramproperties.cpp b/src/app/qgsdiagramproperties.cpp
index 64bcea9dc2b..4ab99bf1910 100644
--- a/src/app/qgsdiagramproperties.cpp
+++ b/src/app/qgsdiagramproperties.cpp
@@ -39,6 +39,7 @@
 
 QgsDiagramProperties::QgsDiagramProperties( QgsVectorLayer* layer, QWidget* parent )
     : QWidget( parent )
+    , mAvailableAttributes( 0 )
 {
   mLayer = layer;
 
diff --git a/src/app/qgsdisplayangle.cpp b/src/app/qgsdisplayangle.cpp
index 111b32b2303..be54b70bdf9 100644
--- a/src/app/qgsdisplayangle.cpp
+++ b/src/app/qgsdisplayangle.cpp
@@ -21,7 +21,9 @@
 #include <cmath>
 
 QgsDisplayAngle::QgsDisplayAngle( QgsMapToolMeasureAngle * tool, Qt::WindowFlags f )
-    : QDialog( tool->canvas()->topLevelWidget(), f ), mTool( tool )
+    : QDialog( tool->canvas()->topLevelWidget(), f )
+    , mTool( tool )
+    , mValue( 0.0 )
 {
   setupUi( this );
 }
diff --git a/src/app/qgsfieldcalculator.h b/src/app/qgsfieldcalculator.h
index 98212e074c3..a70998b5131 100644
--- a/src/app/qgsfieldcalculator.h
+++ b/src/app/qgsfieldcalculator.h
@@ -70,8 +70,6 @@ class APP_EXPORT QgsFieldCalculator: public QDialog, private Ui::QgsFieldCalcula
 
     /**idx of changed attribute*/
     int mAttributeId;
-
-    bool mExpressionValid;
 };
 
 #endif // QGSFIELDCALCULATOR_H
diff --git a/src/app/qgslabelinggui.cpp b/src/app/qgslabelinggui.cpp
index ad202fca0aa..68f2d8c9699 100644
--- a/src/app/qgslabelinggui.cpp
+++ b/src/app/qgslabelinggui.cpp
@@ -46,7 +46,11 @@
 
 
 QgsLabelingGui::QgsLabelingGui( QgsVectorLayer* layer, QgsMapCanvas* mapCanvas, QWidget* parent )
-    : QWidget( parent ), mLayer( layer ), mMapCanvas( mapCanvas )
+    : QWidget( parent )
+    , mLayer( layer )
+    , mMapCanvas( mapCanvas )
+    , mMinPixelLimit( 0 )
+    , mLoadSvgParams( false )
 {
   if ( !layer )
     return;
diff --git a/src/app/qgsloadstylefromdbdialog.cpp b/src/app/qgsloadstylefromdbdialog.cpp
index 2f436942947..6a8bf33ae92 100644
--- a/src/app/qgsloadstylefromdbdialog.cpp
+++ b/src/app/qgsloadstylefromdbdialog.cpp
@@ -16,6 +16,7 @@
 
 QgsLoadStyleFromDBDialog::QgsLoadStyleFromDBDialog( QWidget *parent )
     : QDialog( parent )
+    , mSectionLimit( 0 )
 {
   setupUi( this );
   setWindowTitle( "Load style from database" );
diff --git a/src/app/qgsmaptooloffsetcurve.cpp b/src/app/qgsmaptooloffsetcurve.cpp
index 44d72fe39aa..afc44581b56 100644
--- a/src/app/qgsmaptooloffsetcurve.cpp
+++ b/src/app/qgsmaptooloffsetcurve.cpp
@@ -29,6 +29,7 @@ QgsMapToolOffsetCurve::QgsMapToolOffsetCurve( QgsMapCanvas* canvas )
     : QgsMapToolEdit( canvas )
     , mRubberBand( 0 )
     , mOriginalGeometry( 0 )
+    , mModifiedFeature( -1 )
     , mGeometryModified( false )
     , mDistanceItem( 0 )
     , mDistanceSpinBox( 0 )
diff --git a/src/app/qgsmaptoolrotatefeature.cpp b/src/app/qgsmaptoolrotatefeature.cpp
index 67ef4cd0be4..ab0bff89548 100644
--- a/src/app/qgsmaptoolrotatefeature.cpp
+++ b/src/app/qgsmaptoolrotatefeature.cpp
@@ -29,11 +29,15 @@
 
 #define PI 3.14159265
 
-QgsMapToolRotateFeature::QgsMapToolRotateFeature( QgsMapCanvas* canvas ): QgsMapToolEdit( canvas ), mRubberBand( 0 )
+QgsMapToolRotateFeature::QgsMapToolRotateFeature( QgsMapCanvas* canvas )
+    : QgsMapToolEdit( canvas )
+    , mRubberBand( 0 )
+    , mRotation( 0 )
+    , mRotationOffset( 0 )
+    , mAnchorPoint( 0 )
+    , mCtrl( false )
 {
-  mRotation = 0;
-  mAnchorPoint = 0;
-  mCtrl = false;
+
 }
 
 QgsMapToolRotateFeature::~QgsMapToolRotateFeature()
diff --git a/src/app/qgsmaptoolrotatelabel.cpp b/src/app/qgsmaptoolrotatelabel.cpp
index 691b5ecfb53..0ce18adacbe 100644
--- a/src/app/qgsmaptoolrotatelabel.cpp
+++ b/src/app/qgsmaptoolrotatelabel.cpp
@@ -27,7 +27,14 @@
 #include "qgisapp.h"
 #include "qgsapplication.h"
 
-QgsMapToolRotateLabel::QgsMapToolRotateLabel( QgsMapCanvas* canvas ): QgsMapToolLabel( canvas ), mRotationItem( 0 ), mRotationPreviewBox( 0 )
+QgsMapToolRotateLabel::QgsMapToolRotateLabel( QgsMapCanvas* canvas )
+    : QgsMapToolLabel( canvas )
+    , mStartRotation( 0.0 )
+    , mCurrentRotation( 0.0 )
+    , mCurrentMouseAzimuth( 0.0 )
+    , mRotationItem( 0 )
+    , mRotationPreviewBox( 0 )
+    , mCtrlPressed( false )
 {
 }
 
diff --git a/src/app/qgsmaptoolselectfreehand.cpp b/src/app/qgsmaptoolselectfreehand.cpp
index aa862468c9f..7cdcfddf3c7 100644
--- a/src/app/qgsmaptoolselectfreehand.cpp
+++ b/src/app/qgsmaptoolselectfreehand.cpp
@@ -25,6 +25,7 @@ email                : jpalmer at linz dot govt dot nz
 
 QgsMapToolSelectFreehand::QgsMapToolSelectFreehand( QgsMapCanvas* canvas )
     : QgsMapTool( canvas )
+    , mDragging( false )
 {
   mRubberBand = 0;
   mCursor = Qt::ArrowCursor;
diff --git a/src/app/qgsmaptoolshowhidelabels.cpp b/src/app/qgsmaptoolshowhidelabels.cpp
index bedacec2296..cda0aac7ca7 100644
--- a/src/app/qgsmaptoolshowhidelabels.cpp
+++ b/src/app/qgsmaptoolshowhidelabels.cpp
@@ -29,6 +29,7 @@
 
 QgsMapToolShowHideLabels::QgsMapToolShowHideLabels( QgsMapCanvas* canvas )
     : QgsMapToolLabel( canvas )
+    , mDragging( false )
 {
   mToolName = tr( "Show/hide labels" );
   mRubberBand = 0;
diff --git a/src/app/qgsmeasuretool.cpp b/src/app/qgsmeasuretool.cpp
index 5856ebcdcfb..daf45e1e440 100644
--- a/src/app/qgsmeasuretool.cpp
+++ b/src/app/qgsmeasuretool.cpp
@@ -33,6 +33,7 @@
 
 QgsMeasureTool::QgsMeasureTool( QgsMapCanvas* canvas, bool measureArea )
     : QgsMapTool( canvas )
+    , mWrongProjectProjection( false )
 {
   mMeasureArea = measureArea;
 
diff --git a/src/app/qgspointrotationitem.cpp b/src/app/qgspointrotationitem.cpp
index 595a055059a..fa7a89ffb88 100644
--- a/src/app/qgspointrotationitem.cpp
+++ b/src/app/qgspointrotationitem.cpp
@@ -17,14 +17,20 @@
 #include <QPainter>
 #include <cmath>
 
-QgsPointRotationItem::QgsPointRotationItem( QgsMapCanvas* canvas ): QgsMapCanvasItem( canvas ), mOrientation( Clockwise ), mRotation( 0.0 )
+QgsPointRotationItem::QgsPointRotationItem( QgsMapCanvas* canvas )
+    : QgsMapCanvasItem( canvas )
+    , mOrientation( Clockwise )
+    , mRotation( 0.0 )
 {
   //setup font
   mFont.setPointSize( 12 );
   mFont.setBold( true );
 }
 
-QgsPointRotationItem::QgsPointRotationItem(): QgsMapCanvasItem( 0 ), mRotation( 0.0 )
+QgsPointRotationItem::QgsPointRotationItem()
+    : QgsMapCanvasItem( 0 )
+    , mOrientation( Clockwise )
+    , mRotation( 0.0 )
 {
 
 }
diff --git a/src/core/dxf/qgsdxfexport.cpp b/src/core/dxf/qgsdxfexport.cpp
index 366c48b069d..fec9a7d1d05 100644
--- a/src/core/dxf/qgsdxfexport.cpp
+++ b/src/core/dxf/qgsdxfexport.cpp
@@ -316,6 +316,7 @@ QgsDxfExport::QgsDxfExport()
 }
 
 QgsDxfExport::QgsDxfExport( const QgsDxfExport& dxfExport )
+    : mModelSpaceBR( 0 )
 {
   *this = dxfExport;
 }
diff --git a/src/core/pal/feature.cpp b/src/core/pal/feature.cpp
index 82dc059b9ad..e7ff4088f16 100644
--- a/src/core/pal/feature.cpp
+++ b/src/core/pal/feature.cpp
@@ -62,8 +62,25 @@
 namespace pal
 {
   Feature::Feature( Layer* l, const char* geom_id, PalGeometry* userG, double lx, double ly )
-      : layer( l ), userGeom( userG ), label_x( lx ), label_y( ly ), distlabel( 0 ), labelInfo( NULL ), fixedPos( false ),
-      quadOffset( false ), offsetPos( false ), fixedRotation( false ), alwaysShow( false )
+      : layer( l )
+      , userGeom( userG )
+      , label_x( lx )
+      , label_y( ly )
+      , distlabel( 0 )
+      , labelInfo( NULL )
+      , fixedPos( false )
+      , fixedPosX( 0.0 )
+      , fixedPosY( 0.0 )
+      , quadOffset( false )
+      , quadOffsetX( 0.0 )
+      , quadOffsetY( 0.0 )
+      , offsetPos( false )
+      , offsetPosX( 0.0 )
+      , offsetPosY( 0.0 )
+      , fixedRotation( false )
+      , fixedAngle( 0.0 )
+      , repeatDist( 0.0 )
+      , alwaysShow( false )
   {
     assert( finite( lx ) && finite( ly ) );
 
diff --git a/src/core/pal/labelposition.cpp b/src/core/pal/labelposition.cpp
index 62c68518a61..026cff75f89 100644
--- a/src/core/pal/labelposition.cpp
+++ b/src/core/pal/labelposition.cpp
@@ -55,7 +55,7 @@
 namespace pal
 {
   LabelPosition::LabelPosition( int id, double x1, double y1, double w, double h, double alpha, double cost, FeaturePart *feature, bool isReversed )
-      : id( id ), cost( cost ), feature( feature ), nbOverlap( 0 ), alpha( alpha ), w( w ), h( h ), nextPart( NULL ), partId( -1 ), reversed( isReversed ), upsideDown( false )
+      : id( id ), cost( cost ), feature( feature ), probFeat( 0 ), nbOverlap( 0 ), alpha( alpha ), w( w ), h( h ), nextPart( NULL ), partId( -1 ), reversed( isReversed ), upsideDown( false )
   {
 
     // alpha take his value bw 0 and 2*pi rad
@@ -165,6 +165,7 @@ namespace pal
       nextPart = NULL;
     partId = other.partId;
     upsideDown = other.upsideDown;
+    reversed = other.reversed;
   }
 
   bool LabelPosition::isIn( double *bbox )
diff --git a/src/core/pal/pal.h b/src/core/pal/pal.h
index 9d1ba6000aa..f2a4e06fc33 100644
--- a/src/core/pal/pal.h
+++ b/src/core/pal/pal.h
@@ -133,9 +133,6 @@ namespace pal
 
       SimpleMutex *lyrsMutex;
 
-      // TODO remove after tests !!!
-      clock_t tmpTime;
-
       Units map_unit;
 
       /**
diff --git a/src/core/qgserror.h b/src/core/qgserror.h
index 854352fb71f..ae375561447 100644
--- a/src/core/qgserror.h
+++ b/src/core/qgserror.h
@@ -36,7 +36,7 @@ class CORE_EXPORT QgsErrorMessage
       Html
     };
 
-    QgsErrorMessage() {}
+    QgsErrorMessage() : mLine( 0 ), mFormat( Text ) {}
 
     /** Constructor.
      *  @param theMessage error message string
diff --git a/src/core/qgsfeaturerequest.cpp b/src/core/qgsfeaturerequest.cpp
index 412a1228c7f..25597aa83e3 100644
--- a/src/core/qgsfeaturerequest.cpp
+++ b/src/core/qgsfeaturerequest.cpp
@@ -49,6 +49,7 @@ QgsFeatureRequest::QgsFeatureRequest( const QgsRectangle& rect )
 
 QgsFeatureRequest::QgsFeatureRequest( const QgsExpression& expr )
     : mFilter( FilterExpression )
+    , mFilterFid( -1 )
     , mFilterExpression( new QgsExpression( expr.expression() ) )
     , mFlags( 0 )
 {
diff --git a/src/core/qgsmultirenderchecker.cpp b/src/core/qgsmultirenderchecker.cpp
index c36e11093cf..671a021fbdc 100644
--- a/src/core/qgsmultirenderchecker.cpp
+++ b/src/core/qgsmultirenderchecker.cpp
@@ -18,6 +18,7 @@
 #include <QDebug>
 
 QgsMultiRenderChecker::QgsMultiRenderChecker()
+    : mColorTolerance( 0 )
 {
 }
 
diff --git a/src/core/qgsprojectversion.h b/src/core/qgsprojectversion.h
index 7e70568c9bc..0db32ec1e46 100644
--- a/src/core/qgsprojectversion.h
+++ b/src/core/qgsprojectversion.h
@@ -32,13 +32,13 @@ class CORE_EXPORT QgsProjectVersion
 
   public:
 
-    QgsProjectVersion() {};
-    ~QgsProjectVersion() {};
+    QgsProjectVersion() : mMajor( 0 ), mMinor( 0 ), mSub( 0 ) {}
+    ~QgsProjectVersion() {}
     QgsProjectVersion( int major, int minor, int sub, QString name = "" );
     QgsProjectVersion( QString string );
-    int majorVersion() { return mMajor;};
-    int minorVersion() { return mMinor;};
-    int subVersion()   { return mSub;};
+    int majorVersion() { return mMajor;}
+    int minorVersion() { return mMinor;}
+    int subVersion()   { return mSub;}
     QString text();
 
     /*! Boolean equal operator
diff --git a/src/core/qgssnapper.cpp b/src/core/qgssnapper.cpp
index 03ad27f3ffd..2ca8d8dff84 100644
--- a/src/core/qgssnapper.cpp
+++ b/src/core/qgssnapper.cpp
@@ -27,12 +27,14 @@
 
 QgsSnapper::QgsSnapper( QgsMapRenderer* mapRenderer )
     : mMapSettings( mapRenderer->mapSettings() )
+    , mSnapMode( SnapWithOneResult )
 {
 
 }
 
 QgsSnapper::QgsSnapper( const QgsMapSettings& mapSettings )
     : mMapSettings( mapSettings )
+    , mSnapMode( SnapWithOneResult )
 {
 }
 
diff --git a/src/core/qgsvectorlayerfeatureiterator.cpp b/src/core/qgsvectorlayerfeatureiterator.cpp
index 7306af17928..2431ef19a48 100644
--- a/src/core/qgsvectorlayerfeatureiterator.cpp
+++ b/src/core/qgsvectorlayerfeatureiterator.cpp
@@ -88,6 +88,7 @@ QgsFeatureIterator QgsVectorLayerFeatureSource::getFeatures( const QgsFeatureReq
 QgsVectorLayerFeatureIterator::QgsVectorLayerFeatureIterator( QgsVectorLayerFeatureSource* source, bool ownSource, const QgsFeatureRequest& request )
     : QgsAbstractFeatureIteratorFromSource<QgsVectorLayerFeatureSource>( source, ownSource, request )
     , mEditGeometrySimplifier( 0 )
+    , mFetchedFid( false )
 {
 
   // prepare joins: may add more attributes to fetch (in order to allow join)
diff --git a/src/core/qgsvectorlayerrenderer.h b/src/core/qgsvectorlayerrenderer.h
index a6ff9c2b179..ef0cb747eb7 100644
--- a/src/core/qgsvectorlayerrenderer.h
+++ b/src/core/qgsvectorlayerrenderer.h
@@ -92,7 +92,6 @@ class QgsVectorLayerRenderer : public QgsMapLayerRenderer
 
     QgsFeatureRendererV2 *mRendererV2;
 
-    bool mCacheFeatures;
     QgsGeometryCache* mCache;
 
     bool mDrawVertexMarkers;
diff --git a/src/core/raster/qgscolorrampshader.h b/src/core/raster/qgscolorrampshader.h
index ae61a7ea3cf..10bef6083df 100644
--- a/src/core/raster/qgscolorrampshader.h
+++ b/src/core/raster/qgscolorrampshader.h
@@ -42,7 +42,7 @@ class CORE_EXPORT QgsColorRampShader : public QgsRasterShaderFunction
     struct ColorRampItem
     {
       //! default constructor
-      ColorRampItem() {}
+      ColorRampItem() : value( 0 ) {}
       //! convenience constructor
       ColorRampItem( double val, QColor col, QString lbl = QString() ) : label( lbl ), value( val ), color( col ) {}
 
diff --git a/src/core/raster/qgsrasterbandstats.h b/src/core/raster/qgsrasterbandstats.h
index 9f0f29b8a3a..162d73c9817 100644
--- a/src/core/raster/qgsrasterbandstats.h
+++ b/src/core/raster/qgsrasterbandstats.h
@@ -59,6 +59,7 @@ class CORE_EXPORT QgsRasterBandStats
       elementCount = 0;
       width = 0;
       height = 0;
+      bandNumber = 1;
     }
 
     /*! Compares region, size etc. not collected statistics */
diff --git a/src/core/symbology-ng/qgscategorizedsymbolrendererv2.cpp b/src/core/symbology-ng/qgscategorizedsymbolrendererv2.cpp
index 9b69abf2ca5..582183065de 100644
--- a/src/core/symbology-ng/qgscategorizedsymbolrendererv2.cpp
+++ b/src/core/symbology-ng/qgscategorizedsymbolrendererv2.cpp
@@ -31,6 +31,7 @@
 #include <QSettings> // for legend
 
 QgsRendererCategoryV2::QgsRendererCategoryV2()
+    : mRender( true )
 {
 }
 
@@ -147,6 +148,8 @@ QgsCategorizedSymbolRendererV2::QgsCategorizedSymbolRendererV2( QString attrName
     , mCategories( categories )
     , mInvertedColorRamp( false )
     , mScaleMethod( DEFAULT_SCALE_METHOD )
+    , mAttrNum( -1 )
+    , mCounting( false )
 {
   for ( int i = 0; i < mCategories.count(); ++i )
   {
diff --git a/src/core/symbology-ng/qgsfillsymbollayerv2.cpp b/src/core/symbology-ng/qgsfillsymbollayerv2.cpp
index 903b1197c01..87866ec548f 100644
--- a/src/core/symbology-ng/qgsfillsymbollayerv2.cpp
+++ b/src/core/symbology-ng/qgsfillsymbollayerv2.cpp
@@ -1546,7 +1546,11 @@ QgsMapUnitScale QgsShapeburstFillSymbolLayerV2::mapUnitScale() const
 
 //QgsImageFillSymbolLayer
 
-QgsImageFillSymbolLayer::QgsImageFillSymbolLayer(): mOutlineWidth( 0.0 ), mOutlineWidthUnit( QgsSymbolV2::MM ), mOutline( 0 )
+QgsImageFillSymbolLayer::QgsImageFillSymbolLayer()
+    : mNextAngle( 0.0 )
+    , mOutlineWidth( 0.0 )
+    , mOutlineWidthUnit( QgsSymbolV2::MM )
+    , mOutline( 0 )
 {
   setSubSymbol( new QgsLineSymbolV2() );
 }
@@ -2251,8 +2255,16 @@ void QgsSVGFillSymbolLayer::setDefaultSvgParams()
 }
 
 
-QgsLinePatternFillSymbolLayer::QgsLinePatternFillSymbolLayer(): QgsImageFillSymbolLayer(), mDistanceUnit( QgsSymbolV2::MM ), mLineWidthUnit( QgsSymbolV2::MM ),
-    mOffsetUnit( QgsSymbolV2::MM ), mFillLineSymbol( 0 )
+QgsLinePatternFillSymbolLayer::QgsLinePatternFillSymbolLayer()
+    : QgsImageFillSymbolLayer()
+    , mDistance( 5.0 )
+    , mDistanceUnit( QgsSymbolV2::MM )
+    , mLineWidth( 0 )
+    , mLineWidthUnit( QgsSymbolV2::MM )
+    , mLineAngle( 45.0 )
+    , mOffset( 0.0 )
+    , mOffsetUnit( QgsSymbolV2::MM )
+    , mFillLineSymbol( 0 )
 {
   setSubSymbol( new QgsLineSymbolV2() );
   QgsImageFillSymbolLayer::setSubSymbol( 0 ); //no outline
diff --git a/src/core/symbology-ng/qgsgraduatedsymbolrendererv2.cpp b/src/core/symbology-ng/qgsgraduatedsymbolrendererv2.cpp
index 14541e050ca..02694e69060 100644
--- a/src/core/symbology-ng/qgsgraduatedsymbolrendererv2.cpp
+++ b/src/core/symbology-ng/qgsgraduatedsymbolrendererv2.cpp
@@ -38,6 +38,7 @@ QgsRendererRangeV2::QgsRendererRangeV2()
     , mUpperValue( 0 )
     , mSymbol( 0 )
     , mLabel()
+    , mRender( true )
 {
 }
 
@@ -284,6 +285,9 @@ QgsGraduatedSymbolRendererV2::QgsGraduatedSymbolRendererV2( QString attrName, Qg
     , mMode( Custom )
     , mInvertedColorRamp( false )
     , mScaleMethod( DEFAULT_SCALE_METHOD )
+    , mAttrNum( -1 )
+    , mCounting( false )
+
 {
   // TODO: check ranges for sanity (NULL symbols, invalid ranges)
 }
diff --git a/src/core/symbology-ng/qgsmarkersymbollayerv2.cpp b/src/core/symbology-ng/qgsmarkersymbollayerv2.cpp
index db45d556e31..315c2a5f285 100644
--- a/src/core/symbology-ng/qgsmarkersymbollayerv2.cpp
+++ b/src/core/symbology-ng/qgsmarkersymbollayerv2.cpp
@@ -63,6 +63,7 @@ QgsSimpleMarkerSymbolLayerV2::QgsSimpleMarkerSymbolLayerV2( QString name, QColor
   mOffsetUnit = QgsSymbolV2::MM;
   mAngleExpression = NULL;
   mNameExpression = NULL;
+  mUsingCache = false;
 }
 
 QgsSymbolLayerV2* QgsSimpleMarkerSymbolLayerV2::create( const QgsStringMap& props )
diff --git a/src/core/symbology-ng/qgssinglesymbolrendererv2.cpp b/src/core/symbology-ng/qgssinglesymbolrendererv2.cpp
index b9255c57e75..e5f497d0ea8 100644
--- a/src/core/symbology-ng/qgssinglesymbolrendererv2.cpp
+++ b/src/core/symbology-ng/qgssinglesymbolrendererv2.cpp
@@ -33,6 +33,7 @@ QgsSingleSymbolRendererV2::QgsSingleSymbolRendererV2( QgsSymbolV2* symbol )
     : QgsFeatureRendererV2( "singleSymbol" )
     , mSymbol( symbol )
     , mScaleMethod( DEFAULT_SCALE_METHOD )
+    , mOrigSize( 0.0 )
 {
   Q_ASSERT( symbol );
 }
diff --git a/src/core/symbology-ng/qgssymbollayerv2.cpp b/src/core/symbology-ng/qgssymbollayerv2.cpp
index 081cdc40f12..c2397cc3fed 100644
--- a/src/core/symbology-ng/qgssymbollayerv2.cpp
+++ b/src/core/symbology-ng/qgssymbollayerv2.cpp
@@ -212,8 +212,11 @@ void QgsSymbolLayerV2::copyDataDefinedProperties( QgsSymbolLayerV2* destLayer )
 
 QgsMarkerSymbolLayerV2::QgsMarkerSymbolLayerV2( bool locked )
     : QgsSymbolLayerV2( QgsSymbolV2::Marker, locked )
+    , mAngle( 0 )
+    , mSize( 2.0 )
     , mSizeUnit( QgsSymbolV2::MM )
     , mOffsetUnit( QgsSymbolV2::MM )
+    , mScaleMethod( QgsSymbolV2::ScaleArea )
     , mHorizontalAnchorPoint( HCenter )
     , mVerticalAnchorPoint( VCenter )
 {
@@ -224,6 +227,7 @@ QgsMarkerSymbolLayerV2::QgsMarkerSymbolLayerV2( bool locked )
 
 QgsLineSymbolLayerV2::QgsLineSymbolLayerV2( bool locked )
     : QgsSymbolLayerV2( QgsSymbolV2::Line, locked )
+    , mWidth( 0 )
     , mWidthUnit( QgsSymbolV2::MM )
     , mOffset( 0 )
     , mOffsetUnit( QgsSymbolV2::MM )
diff --git a/src/core/symbology-ng/qgsvectorcolorrampv2.cpp b/src/core/symbology-ng/qgsvectorcolorrampv2.cpp
index df5ddc8fb06..97f13fa11b5 100644
--- a/src/core/symbology-ng/qgsvectorcolorrampv2.cpp
+++ b/src/core/symbology-ng/qgsvectorcolorrampv2.cpp
@@ -361,6 +361,7 @@ void QgsVectorRandomColorRampV2::updateColors()
 /////////////
 
 QgsRandomColorsV2::QgsRandomColorsV2()
+    : mTotalColorCount( 0 )
 {
   srand( QTime::currentTime().msec() );
 }
diff --git a/src/gui/attributetable/qgsfeaturelistview.cpp b/src/gui/attributetable/qgsfeaturelistview.cpp
index 67e1aa493f4..62978e70d7d 100644
--- a/src/gui/attributetable/qgsfeaturelistview.cpp
+++ b/src/gui/attributetable/qgsfeaturelistview.cpp
@@ -40,6 +40,7 @@ QgsFeatureListView::QgsFeatureListView( QWidget *parent )
     , mFeatureSelectionModel( 0 )
     , mItemDelegate( 0 )
     , mEditSelectionDrag( false )
+    , mRowAnchor( 0 )
 {
   setSelectionMode( QAbstractItemView::ExtendedSelection );
 }
diff --git a/src/gui/editorwidgets/qgsdatetimeedit.cpp b/src/gui/editorwidgets/qgsdatetimeedit.cpp
index eee54412e12..f55f0e3b792 100644
--- a/src/gui/editorwidgets/qgsdatetimeedit.cpp
+++ b/src/gui/editorwidgets/qgsdatetimeedit.cpp
@@ -27,6 +27,7 @@
 QgsDateTimeEdit::QgsDateTimeEdit( QWidget *parent )
     : QDateTimeEdit( parent )
     , mAllowNull( true )
+    , mIsNull( true )
 {
   mClearButton = new QToolButton( this );
   mClearButton->setIcon( QgsApplication::getThemeIcon( "/mIconClear.svg" ) );
diff --git a/src/gui/qgsannotationitem.cpp b/src/gui/qgsannotationitem.cpp
index ed591729c76..da6e149ba90 100644
--- a/src/gui/qgsannotationitem.cpp
+++ b/src/gui/qgsannotationitem.cpp
@@ -23,7 +23,11 @@
 #include <QPainter>
 #include <QPen>
 
-QgsAnnotationItem::QgsAnnotationItem( QgsMapCanvas* mapCanvas ): QgsMapCanvasItem( mapCanvas ), mMapPositionFixed( true ), mOffsetFromReferencePoint( QPointF( 50, -50 ) )
+QgsAnnotationItem::QgsAnnotationItem( QgsMapCanvas* mapCanvas )
+    : QgsMapCanvasItem( mapCanvas )
+    , mMapPositionFixed( true )
+    , mOffsetFromReferencePoint( QPointF( 50, -50 ) )
+    , mBalloonSegment( -1 )
 {
   setFlag( QGraphicsItem::ItemIsSelectable, true );
   mMarkerSymbol = new QgsMarkerSymbolV2();
diff --git a/src/gui/qgsdetaileditemdata.cpp b/src/gui/qgsdetaileditemdata.cpp
index bc9c6b7ef5f..aea3cbe8354 100644
--- a/src/gui/qgsdetaileditemdata.cpp
+++ b/src/gui/qgsdetaileditemdata.cpp
@@ -17,9 +17,12 @@
 
 #include "qgsdetaileditemdata.h"
 QgsDetailedItemData::QgsDetailedItemData()
+    : mCheckableFlag( false )
+    , mCheckedFlag( false )
+    , mEnabledFlag( true )
+    , mRenderAsWidgetFlag( false )
 {
-  mRenderAsWidgetFlag = false;
-  mEnabledFlag = true;
+
 }
 
 QgsDetailedItemData::~QgsDetailedItemData()
diff --git a/src/gui/qgsextentgroupbox.cpp b/src/gui/qgsextentgroupbox.cpp
index 2dfff86fc6a..995f1b7041e 100644
--- a/src/gui/qgsextentgroupbox.cpp
+++ b/src/gui/qgsextentgroupbox.cpp
@@ -5,6 +5,7 @@
 
 QgsExtentGroupBox::QgsExtentGroupBox( QWidget* parent )
     : QgsCollapsibleGroupBox( parent )
+    , mExtentState( OriginalExtent )
 {
   setupUi( this );
 
diff --git a/src/gui/qgsidentifymenu.cpp b/src/gui/qgsidentifymenu.cpp
index 2d7c82c21f0..6677737d10b 100644
--- a/src/gui/qgsidentifymenu.cpp
+++ b/src/gui/qgsidentifymenu.cpp
@@ -32,6 +32,7 @@ QgsIdentifyMenu::QgsIdentifyMenu( QgsMapCanvas* canvas )
     , mCanvas( canvas )
     , mAllowMultipleReturn( true )
     , mExecWithSingleResult( false )
+    , mShowFeatureActions( false )
     , mResultsIfExternalAction( false )
     , mMaxLayerDisplay( 10 )
     , mMaxFeatureDisplay( 10 )
diff --git a/src/gui/qgsmapcanvasitem.cpp b/src/gui/qgsmapcanvasitem.cpp
index 31085162e19..c0dd3ecc980 100644
--- a/src/gui/qgsmapcanvasitem.cpp
+++ b/src/gui/qgsmapcanvasitem.cpp
@@ -29,6 +29,7 @@
 QgsMapCanvasItem::QgsMapCanvasItem( QgsMapCanvas* mapCanvas )
     : QGraphicsItem()
     , mMapCanvas( mapCanvas )
+    , mRectRotation( 0.0 )
     , mPanningOffset( 0, 0 )
     , mItemSize( 0, 0 )
 {
diff --git a/src/gui/qgsmaplayeractionregistry.cpp b/src/gui/qgsmaplayeractionregistry.cpp
index 4206a642468..513d435287a 100644
--- a/src/gui/qgsmaplayeractionregistry.cpp
+++ b/src/gui/qgsmaplayeractionregistry.cpp
@@ -21,6 +21,7 @@ QgsMapLayerAction::QgsMapLayerAction( QString name, QObject* parent, Targets tar
     , mSingleLayer( false )
     , mActionLayer( 0 )
     , mSpecificLayerType( false )
+    , mLayerType( QgsMapLayer::VectorLayer )
     , mTargets( targets )
 {
 }
@@ -31,6 +32,7 @@ QgsMapLayerAction::QgsMapLayerAction( QString name, QObject* parent, QgsMapLayer
     , mSingleLayer( true )
     , mActionLayer( layer )
     , mSpecificLayerType( false )
+    , mLayerType( QgsMapLayer::VectorLayer )
     , mTargets( targets )
 {
 }
diff --git a/src/gui/qgsrubberband.cpp b/src/gui/qgsrubberband.cpp
index c8639f3d321..7cc1e186155 100644
--- a/src/gui/qgsrubberband.cpp
+++ b/src/gui/qgsrubberband.cpp
@@ -60,7 +60,13 @@ QgsRubberBand::QgsRubberBand( QgsMapCanvas* mapCanvas, bool isPolygon )
   setBrushStyle( Qt::SolidPattern );
 }
 
-QgsRubberBand::QgsRubberBand(): QgsMapCanvasItem( 0 )
+QgsRubberBand::QgsRubberBand()
+    : QgsMapCanvasItem( 0 )
+    , mIconSize( 5 )
+    , mIconType( ICON_CIRCLE )
+    , mGeometryType( QGis::Polygon )
+    , mTranslationOffsetX( 0.0 )
+    , mTranslationOffsetY( 0.0 )
 {
 }
 
diff --git a/src/gui/symbology-ng/qgscptcitycolorrampv2dialog.cpp b/src/gui/symbology-ng/qgscptcitycolorrampv2dialog.cpp
index 10786e30988..dd4c99f34dc 100644
--- a/src/gui/symbology-ng/qgscptcitycolorrampv2dialog.cpp
+++ b/src/gui/symbology-ng/qgscptcitycolorrampv2dialog.cpp
@@ -58,7 +58,9 @@ class TreeFilterProxyModel : public QSortFilterProxyModel
 // ----------------------
 
 QgsCptCityColorRampV2Dialog::QgsCptCityColorRampV2Dialog( QgsCptCityColorRampV2* ramp, QWidget* parent )
-    : QDialog( parent ), mRamp( 0 )
+    : QDialog( parent )
+    , mRamp( 0 )
+    , mArchiveViewType( QgsCptCityBrowserModel::Selections )
 {
   setupUi( this );
 
diff --git a/src/plugins/dxf2shp_converter/dxflib/src/dl_dxf.cpp b/src/plugins/dxf2shp_converter/dxflib/src/dl_dxf.cpp
index 39cf3f9a321..28afe26d887 100644
--- a/src/plugins/dxf2shp_converter/dxflib/src/dl_dxf.cpp
+++ b/src/plugins/dxf2shp_converter/dxflib/src/dl_dxf.cpp
@@ -75,6 +75,11 @@ DL_Dxf::DL_Dxf()
   hatchEdgeIndex = NULL;
   dropEdges = false;
 
+  groupCode = 0;
+  currentEntity = DL_Unknown;
+  firstCall = true;
+  libVersion = 0;
+
   //bulge = 0.0;
 }
 
diff --git a/src/plugins/dxf2shp_converter/dxflib/src/dl_entities.h b/src/plugins/dxf2shp_converter/dxflib/src/dl_entities.h
index 09779e8c58c..5d803a65cd9 100644
--- a/src/plugins/dxf2shp_converter/dxflib/src/dl_entities.h
+++ b/src/plugins/dxf2shp_converter/dxflib/src/dl_entities.h
@@ -1223,7 +1223,7 @@ struct DL_HatchLoopData
   /**
    * Default constructor.
    */
-  DL_HatchLoopData() {}
+  DL_HatchLoopData() : numEdges( 0 ) {}
   /**
    * Constructor.
    * Parameters: see member variables.
diff --git a/src/plugins/evis/eventbrowser/evisimagedisplaywidget.cpp b/src/plugins/evis/eventbrowser/evisimagedisplaywidget.cpp
index aad9247385b..add11ecd076 100644
--- a/src/plugins/evis/eventbrowser/evisimagedisplaywidget.cpp
+++ b/src/plugins/evis/eventbrowser/evisimagedisplaywidget.cpp
@@ -37,7 +37,12 @@
 * @param parent - Pointer the to parent QWidget for modality
 * @param fl - Windown flags
 */
-eVisImageDisplayWidget::eVisImageDisplayWidget( QWidget* parent, Qt::WindowFlags fl ) : QWidget( parent, fl )
+eVisImageDisplayWidget::eVisImageDisplayWidget( QWidget* parent, Qt::WindowFlags fl )
+    : QWidget( parent, fl )
+    , mCurrentHttpImageRequestId( 0 )
+    , mImageSizeRatio( 0.0 )
+    , mScaleFactor( 1.0 )
+    , mScaleToFit( 0.0 )
 {
   //Setup zoom buttons
   pbtnZoomIn = new QPushButton();
diff --git a/src/plugins/offline_editing/offline_editing_progress_dialog.cpp b/src/plugins/offline_editing/offline_editing_progress_dialog.cpp
index 410aa0d1d02..7624bf97e08 100644
--- a/src/plugins/offline_editing/offline_editing_progress_dialog.cpp
+++ b/src/plugins/offline_editing/offline_editing_progress_dialog.cpp
@@ -20,6 +20,7 @@
 
 QgsOfflineEditingProgressDialog::QgsOfflineEditingProgressDialog( QWidget* parent /*= 0*/, Qt::WindowFlags fl /*= 0*/ )
     : QDialog( parent, fl )
+    , mProgressUpdate( 0 )
 {
   setupUi( this );
 }
diff --git a/src/providers/delimitedtext/qgsdelimitedtextfeatureiterator.cpp b/src/providers/delimitedtext/qgsdelimitedtextfeatureiterator.cpp
index 4fee62b7ce3..2e4ff77edf2 100644
--- a/src/providers/delimitedtext/qgsdelimitedtextfeatureiterator.cpp
+++ b/src/providers/delimitedtext/qgsdelimitedtextfeatureiterator.cpp
@@ -27,6 +27,7 @@
 
 QgsDelimitedTextFeatureIterator::QgsDelimitedTextFeatureIterator( QgsDelimitedTextFeatureSource* source, bool ownSource, const QgsFeatureRequest& request )
     : QgsAbstractFeatureIteratorFromSource<QgsDelimitedTextFeatureSource>( source, ownSource, request )
+    , mTestGeometryExact( false )
 {
 
   // Determine mode to use based on request...
diff --git a/src/providers/delimitedtext/qgsdelimitedtextfile.cpp b/src/providers/delimitedtext/qgsdelimitedtextfile.cpp
index dd79175ef98..0c354331cd0 100644
--- a/src/providers/delimitedtext/qgsdelimitedtextfile.cpp
+++ b/src/providers/delimitedtext/qgsdelimitedtextfile.cpp
@@ -43,6 +43,7 @@ QgsDelimitedTextFile::QgsDelimitedTextFile( QString url ) :
     mSkipLines( 0 ),
     mMaxFields( 0 ),
     mMaxNameLength( 200 ), // Don't want field names to be too unweildy!
+    mAnchoredRegexp( false ),
     mLineNumber( -1 ),
     mRecordLineNumber( -1 ),
     mRecordNumber( -1 ),
diff --git a/src/providers/gdal/qgsgdalprovider.cpp b/src/providers/gdal/qgsgdalprovider.cpp
index e825765a338..19f973d2fb9 100644
--- a/src/providers/gdal/qgsgdalprovider.cpp
+++ b/src/providers/gdal/qgsgdalprovider.cpp
@@ -116,6 +116,11 @@ QgsGdalProvider::QgsGdalProvider( const QString &uri, bool update )
     , QgsGdalProviderBase()
     , mUpdate( update )
     , mValid( false )
+    , mHasPyramids( false )
+    , mWidth( 0 )
+    , mHeight( 0 )
+    , mXBlockSize( 0 )
+    , mYBlockSize( 0 )
     , mGdalBaseDataset( 0 )
     , mGdalDataset( 0 )
 {
diff --git a/src/providers/mssql/qgsmssqlprovider.cpp b/src/providers/mssql/qgsmssqlprovider.cpp
index e82723f5f87..21d0d757b66 100644
--- a/src/providers/mssql/qgsmssqlprovider.cpp
+++ b/src/providers/mssql/qgsmssqlprovider.cpp
@@ -55,6 +55,7 @@ int QgsMssqlProvider::sConnectionId = 0;
 
 QgsMssqlProvider::QgsMssqlProvider( QString uri )
     : QgsVectorDataProvider( uri )
+    , mNumberFeatures( 0 )
     , mCrs()
     , mWkbType( QGis::WKBUnknown )
 {
diff --git a/src/providers/mssql/qgsmssqlprovider.h b/src/providers/mssql/qgsmssqlprovider.h
index 3f15072f4c6..aafe8c11b91 100644
--- a/src/providers/mssql/qgsmssqlprovider.h
+++ b/src/providers/mssql/qgsmssqlprovider.h
@@ -264,8 +264,6 @@ class QgsMssqlProvider : public QgsVectorDataProvider
     bool mUseEstimatedMetadata;
     bool mSkipFailures;
 
-    int mGeomType;
-
     long mNumberFeatures;
     QString mFidColName;
     long mSRId;
diff --git a/src/providers/ogr/qgsogrprovider.cpp b/src/providers/ogr/qgsogrprovider.cpp
index 96db741d7dd..3f1c2dd79d6 100644
--- a/src/providers/ogr/qgsogrprovider.cpp
+++ b/src/providers/ogr/qgsogrprovider.cpp
@@ -266,6 +266,7 @@ QgsOgrProvider::QgsOgrProvider( QString const & uri )
     , mOgrGeometryTypeFilter( wkbUnknown )
     , ogrDriver( 0 )
     , valid( false )
+    , geomType( wkbUnknown )
     , featuresCounted( -1 )
     , mDataModified( false )
     , mWriteAccess( false )
diff --git a/src/providers/ogr/qgsogrprovider.h b/src/providers/ogr/qgsogrprovider.h
index 8e4b065a213..6c11c8c738d 100644
--- a/src/providers/ogr/qgsogrprovider.h
+++ b/src/providers/ogr/qgsogrprovider.h
@@ -323,8 +323,7 @@ class QgsOgrProvider : public QgsVectorDataProvider
     QString ogrDriverName;
 
     bool valid;
-    //! Flag to indicate that spatial intersect should be used in selecting features
-    bool mUseIntersect;
+
     OGRwkbGeometryType geomType;
     long featuresCounted;
 
diff --git a/src/providers/postgres/qgspgsourceselect.cpp b/src/providers/postgres/qgspgsourceselect.cpp
index 57b0a12231f..538cf3daf39 100644
--- a/src/providers/postgres/qgspgsourceselect.cpp
+++ b/src/providers/postgres/qgspgsourceselect.cpp
@@ -157,6 +157,7 @@ QgsPgSourceSelect::QgsPgSourceSelect( QWidget *parent, Qt::WindowFlags fl, bool
     , mManagerMode( managerMode )
     , mEmbeddedMode( embeddedMode )
     , mColumnTypeThread( 0 )
+    , mUseEstimatedMetadata( false )
 {
   setupUi( this );
 
diff --git a/src/providers/postgres/qgspostgresfeatureiterator.cpp b/src/providers/postgres/qgspostgresfeatureiterator.cpp
index 8b71bd593fa..7604b54899b 100644
--- a/src/providers/postgres/qgspostgresfeatureiterator.cpp
+++ b/src/providers/postgres/qgspostgresfeatureiterator.cpp
@@ -30,6 +30,8 @@ const int QgsPostgresFeatureIterator::sFeatureQueueSize = 2000;
 QgsPostgresFeatureIterator::QgsPostgresFeatureIterator( QgsPostgresFeatureSource* source, bool ownSource, const QgsFeatureRequest& request )
     : QgsAbstractFeatureIteratorFromSource<QgsPostgresFeatureSource>( source, ownSource, request )
     , mFeatureQueueSize( sFeatureQueueSize )
+    , mFetched( 0 )
+    , mFetchGeometry( false )
 {
   if ( !source->mTransactionConnection )
   {
diff --git a/src/providers/postgres/qgspostgresprovider.h b/src/providers/postgres/qgspostgresprovider.h
index d2fb37137d1..6203bd8da4d 100644
--- a/src/providers/postgres/qgspostgresprovider.h
+++ b/src/providers/postgres/qgspostgresprovider.h
@@ -302,7 +302,6 @@ class QgsPostgresProvider : public QgsVectorDataProvider
     void repaintRequested();
 
   private:
-    int mProviderId; // id to append to provider specific identified (like cursors)
 
     bool declareCursor( const QString &cursorName,
                         const QgsAttributeList &fetchAttributes,
diff --git a/src/providers/wcs/qgswcsprovider.cpp b/src/providers/wcs/qgswcsprovider.cpp
index 7de48d3e3c3..dc10b01d85c 100644
--- a/src/providers/wcs/qgswcsprovider.cpp
+++ b/src/providers/wcs/qgswcsprovider.cpp
@@ -92,6 +92,8 @@ QgsWcsProvider::QgsWcsProvider( QString const &uri )
     , mCachedMemFile( 0 )
     , mCachedGdalDataset( 0 )
     , mCachedViewExtent( 0 )
+    , mCachedViewWidth( 0 )
+    , mCachedViewHeight( 0 )
     , mCoordinateTransform( 0 )
     , mExtentDirty( true )
     , mGetFeatureInfoUrlBase( "" )
diff --git a/src/providers/wfs/qgswfsprovider.cpp b/src/providers/wfs/qgswfsprovider.cpp
index 71ca8a07f8c..d6e71b30966 100644
--- a/src/providers/wfs/qgswfsprovider.cpp
+++ b/src/providers/wfs/qgswfsprovider.cpp
@@ -64,7 +64,9 @@ QgsWFSProvider::QgsWFSProvider( const QString& uri )
     , mSourceCRS( 0 )
     , mFeatureCount( 0 )
     , mValid( true )
+    , mCached( false )
     , mPendingRetrieval( false )
+    , mCapabilities( 0 )
 #if 0
     , mLayer( 0 )
     , mGetRenderedOnly( false )
diff --git a/tests/bench/qgsbench.cpp b/tests/bench/qgsbench.cpp
index 8a2e0e064ae..4ce2f98dd62 100644
--- a/tests/bench/qgsbench.cpp
+++ b/tests/bench/qgsbench.cpp
@@ -125,6 +125,8 @@ QgsBench::QgsBench( int theWidth, int theHeight, int theIterations )
     , mHeight( theHeight )
     , mIterations( theIterations )
     , mSetExtent( false )
+    , mUserStart( 0.0 )
+    , mSysStart( 0.0 )
     , mParallel( false )
 {
   QgsDebugMsg( "entered" );