cppcheck: fix '<type>::operator=' should return '<type> &'.

See http://nabble.documentfoundation.org/About-quot-assignment-operators-quot-cppcheck-warning-td4081208.html

Change-Id: Ie351058a30c5d2df5f5ec1327c575e129d022cd2

avmedia/source/vlc/wrapper/Instance.cxx

@@ -49,7 +49,7 @@ namespace wrapper
         operator=( other );
     }
 
-    const Instance& Instance::operator=( const Instance& other )
+    Instance& Instance::operator=( const Instance& other )
     {
         libvlc_release( mInstance );
         mInstance = other.mInstance;

avmedia/source/vlc/wrapper/Instance.hxx

@@ -24,7 +24,7 @@ namespace wrapper
         static bool LoadSymbols();
         Instance( int argc, const char * const argv[] );
         Instance( const Instance& other );
-        const Instance& operator=( const Instance& other );
+        Instance& operator=( const Instance& other );
         virtual ~Instance();
 
         inline operator libvlc_instance_t*()

avmedia/source/vlc/wrapper/Media.cxx

@@ -74,7 +74,7 @@ Media::Media( const Media& other )
     operator=( other );
 }
 
-const Media& Media::operator=( const Media& other )
+Media& Media::operator=( const Media& other )
 {
     libvlc_media_release( mMedia );
     mMedia = other.mMedia;

avmedia/source/vlc/wrapper/Media.hxx

@@ -27,7 +27,7 @@ namespace wrapper
         static bool LoadSymbols();
         Media( const rtl::OUString& url, Instance& instance );
         Media( const Media& other );
-        const Media& operator=( const Media& other );
+        Media& operator=( const Media& other );
 
         int getDuration() const;
 

avmedia/source/vlc/wrapper/Player.cxx

@@ -117,7 +117,7 @@ namespace wrapper
         operator=( other );
     }
 
-    const Player& Player::operator=( const Player& other )
+    Player& Player::operator=( const Player& other )
     {
         libvlc_media_player_release( mPlayer );
         mPlayer = other.mPlayer;

avmedia/source/vlc/wrapper/Player.hxx

@@ -33,7 +33,7 @@ namespace wrapper
         static bool LoadSymbols();
         Player( Media& media );
         Player( const Player& other );
-        const Player& operator=( const Player& other );
+        Player& operator=( const Player& other );
         virtual ~Player();
 
         bool play();

lotuswordpro/source/filter/lwpmargins.hxx

@@ -78,7 +78,7 @@ public:
         m_nBottom = pStrm->QuickReadInt32();
         pStrm->SkipExtra();
     }
-    inline void operator = (const LwpMargins& rOther);
+    inline LwpMargins& operator = (const LwpMargins& rOther);
     inline double GetMarginsValue(const sal_uInt8& nWhichSide);
 private:
     sal_Int32       m_nLeft;
@@ -87,12 +87,13 @@ private:
     sal_Int32       m_nBottom;
 };
 
-inline void LwpMargins::operator = (const LwpMargins& rOther)
+inline LwpMargins& LwpMargins::operator = (const LwpMargins& rOther)
 {
     m_nLeft = rOther.m_nLeft;
     m_nTop = rOther.m_nTop;
     m_nRight = rOther.m_nRight;
     m_nBottom = rOther.m_nBottom;
+    return *this;
 }
 
 inline double LwpMargins::GetMarginsValue(const sal_uInt8& nWhichSide)

lotuswordpro/source/filter/lwpshadow.hxx

@@ -83,7 +83,7 @@ public:
     LwpColor GetColor();
 
     //add by , 01/26/2005
-    inline void operator = (const LwpShadow& rOther);
+    inline LwpShadow& operator = (const LwpShadow& rOther);
     //end add
 
 private:
@@ -108,11 +108,12 @@ inline LwpColor LwpShadow::GetColor()
     return m_aColor;
 }
 
-inline void LwpShadow::operator = (const LwpShadow& rOther)
+inline LwpShadow& LwpShadow::operator = (const LwpShadow& rOther)
 {
     m_aColor = rOther.m_aColor;
     m_nDirX = rOther.m_nDirX;
     m_nDirY = rOther.m_nDirY;
+    return *this;
 }
 #endif
 

writerfilter/source/dmapper/PropertyMap.hxx

@@ -75,7 +75,7 @@ public:
 
     PropValue() : m_aValue(), m_bGrabBag() {}
 
-    const PropValue& operator=(const PropValue& rProp) { m_aValue = rProp.m_aValue; m_bGrabBag = rProp.m_bGrabBag; return *this; }
+    PropValue& operator=(const PropValue& rProp) { m_aValue = rProp.m_aValue; m_bGrabBag = rProp.m_bGrabBag; return *this; }
 
     const uno::Any& getValue() const { return m_aValue; }
     bool hasGrabBag() const { return m_bGrabBag; }