--- vcl/source/gdi/svgdata.cxx
+++ vcl/source/gdi/svgdata.cxx
@@ -166,7 +166,7 @@
 
 //////////////////////////////////////////////////////////////////////////////
 SvgData::SvgData(const OUString& rPath):
-    maSvgDataArray(NULL),
+    maSvgDataArray(),
     mnSvgDataArrayLength(0),
     maPath(rPath),
     maRange(),
--- solver/unxlngx6.pro/inc/comphelper/scoped_disposing_ptr.hxx
+++ solver/unxlngx6.pro/inc/comphelper/scoped_disposing_ptr.hxx
@@ -78,7 +78,7 @@
 
     operator bool () const
     {
-        return m_aItem;
+        return static_cast<bool>(m_aItem);
     }
 
     virtual ~scoped_disposing_ptr()
--- slideshow/source/inc/shapeattributelayer.hxx
+++ slideshow/source/inc/shapeattributelayer.hxx
@@ -467,7 +467,7 @@
             // ShapeAttributeLayer(const ShapeAttributeLayer&);
             // ShapeAttributeLayer& operator=( const ShapeAttributeLayer& );
 
-            bool haveChild() const { return mpChild; }
+            bool haveChild() const { return static_cast<bool>(mpChild); }
             void updateStateIds();
 
             template< typename T > T calcValue( const T&                   rCurrValue,
--- slideshow/source/engine/animatedsprite.cxx
+++ slideshow/source/engine/animatedsprite.cxx
@@ -151,7 +151,7 @@
                 }
             }
 
-            return mpSprite;
+            return static_cast<bool>(mpSprite);
         }
 
         void AnimatedSprite::setPixelOffset( const ::basegfx::B2DSize& rPixelOffset )
--- slideshow/source/inc/shapeattributelayerholder.hxx
+++ slideshow/source/inc/shapeattributelayerholder.hxx
@@ -83,7 +83,7 @@
                 if( mpShape )
                     mpAttributeLayer = mpShape->createAttributeLayer();
 
-                return mpAttributeLayer;
+                return static_cast<bool>(mpAttributeLayer);
             }
 
             ShapeAttributeLayerSharedPtr get() const
--- slideshow/source/engine/shapesubset.cxx
+++ slideshow/source/engine/shapesubset.cxx
@@ -104,7 +104,7 @@
                     maTreeNode );
             }
 
-            return mpSubsetShape;
+            return static_cast<bool>(mpSubsetShape);
         }
 
         void ShapeSubset::disableSubsetShape()
--- slideshow/source/engine/shapes/viewshape.cxx
+++ slideshow/source/engine/shapes/viewshape.cxx
@@ -178,7 +178,7 @@
                 }
             }
 
-            return io_rCacheEntry.mpRenderer;
+            return static_cast<bool>(io_rCacheEntry.mpRenderer);
         }
 
         bool ViewShape::draw( const ::cppcanvas::CanvasSharedPtr&   rDestinationCanvas,
--- slideshow/source/engine/slide/slideanimations.cxx
+++ slideshow/source/engine/slide/slideanimations.cxx
@@ -74,7 +74,7 @@
 
             SHOW_NODE_TREE( mpRootNode );
 
-            return mpRootNode;
+            return static_cast<bool>(mpRootNode);
         }
 
         bool SlideAnimations::isAnimated() const
--- sw/source/core/inc/bookmrk.hxx
+++ sw/source/core/inc/bookmrk.hxx
@@ -75,7 +75,7 @@
 
             virtual bool IsCoveringPosition(const SwPosition& rPos) const;
             virtual bool IsExpanded() const
-                { return m_pPos2; }
+                { return static_cast<bool>(m_pPos2); }
 
             virtual void SetName(const ::rtl::OUString& rName)
                 { m_aName = rName; }
--- sc/source/filter/excel/xechart.cxx
+++ sc/source/filter/excel/xechart.cxx
@@ -682,7 +682,7 @@
 
 bool XclExpChEscherFormat::IsValid() const
 {
-    return maData.mxEscherSet;
+    return static_cast<bool>(maData.mxEscherSet);
 }
 
 void XclExpChEscherFormat::Save( XclExpStream& rStrm )
--- sc/source/filter/excel/xehelper.cxx
+++ sc/source/filter/excel/xehelper.cxx
@@ -303,7 +303,7 @@
     if( GetBiff() == EXC_BIFF8 )    // no HLINK records in BIFF2-BIFF7
     {
         // there was/is already a HLINK record
-        mbMultipleUrls = mxLinkRec;
+        mbMultipleUrls = static_cast<bool>(mxLinkRec);
 
         mxLinkRec.reset( new XclExpHyperlink( GetRoot(), rUrlField, maScPos ) );
 
--- sc/source/filter/excel/xichart.cxx
+++ sc/source/filter/excel/xichart.cxx
@@ -2689,7 +2689,7 @@
     maType.Finalize( bStockChart );
 
     // extended type info
-    maTypeInfo.Set( maType.GetTypeInfo(), mxChart3d, false );
+    maTypeInfo.Set( maType.GetTypeInfo(), static_cast<bool>(mxChart3d), false );
 
     // reverse series order for some unstacked 2D chart types
     if( maTypeInfo.mbReverseSeries && !Is3dChart() && !maType.IsStacked() && !maType.IsPercent() )
--- sc/source/filter/inc/xichart.hxx
+++ sc/source/filter/inc/xichart.hxx
@@ -1230,9 +1230,9 @@
     /** Returns true, if the axis contains caption labels. */
     inline bool         HasLabels() const { return !mxTick || mxTick->HasLabels(); }
     /** Returns true, if the axis shows its major grid lines. */
-    inline bool         HasMajorGrid() const { return mxMajorGrid; }
+    inline bool         HasMajorGrid() const { return static_cast<bool>(mxMajorGrid); }
     /** Returns true, if the axis shows its minor grid lines. */
-    inline bool         HasMinorGrid() const { return mxMinorGrid; }
+    inline bool         HasMinorGrid() const { return static_cast<bool>(mxMinorGrid); }
 
     /** Creates an API axis object. */
     XAxisRef            CreateAxis( const XclImpChTypeGroup& rTypeGroup, const XclImpChAxis* pCrossingAxis ) const;