Remove redundant checks for NULL before calling delete

include/wx/dataview.h

@@ -1213,7 +1213,7 @@ public:
     const wxIcon &GetIcon() const
         { return m_icon; }
     void SetData( wxClientData *data )
-        { if (m_data) delete m_data; m_data = data; }
+        { delete m_data; m_data = data; }
     wxClientData *GetData() const
         { return m_data; }
 

include/wx/dnd.h

@@ -144,7 +144,7 @@ public:
     wxDataObject *GetDataObject() const
         { return m_dataObject; }
     void SetDataObject(wxDataObject *dataObject)
-        { if (m_dataObject) delete m_dataObject;
+        { delete m_dataObject;
     m_dataObject = dataObject; }
 
     // these functions are called when data is moved over position (x, y) and

include/wx/encconv.h

@@ -53,7 +53,7 @@ class WXDLLIMPEXP_BASE wxEncodingConverter : public wxObject
     public:
 
             wxEncodingConverter();
-            virtual ~wxEncodingConverter() { if (m_Table) delete[] m_Table; }
+            virtual ~wxEncodingConverter() { delete[] m_Table; }
 
             // Initialize conversion. Both output or input encoding may
             // be wxFONTENCODING_UNICODE.

src/common/clntdata.cpp

@@ -40,9 +40,7 @@ void wxClientDataContainer::DoSetClientObject( wxClientData *data )
     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
                   wxT("can't have both object and void client data") );
 
-    if ( m_clientObject )
     delete m_clientObject;
-
     m_clientObject = data;
     m_clientDataType = wxClientData_Object;
 }

src/common/cmndata.cpp

@@ -107,7 +107,6 @@ wxPrintData::~wxPrintData()
     if (m_nativeData->m_ref == 0)
         delete m_nativeData;
 
-    if (m_privData)
     delete[] m_privData;
 }
 

src/common/ctrlsub.cpp

@@ -170,7 +170,6 @@ void wxItemContainer::SetClientObject(unsigned int n, wxClientData *data)
     {
         wxClientData * clientDataOld =
             static_cast<wxClientData *>(DoGetItemClientData(n));
-        if ( clientDataOld )
         delete clientDataOld;
     }
     else // didn't have any client data so far

src/common/datavcmn.cpp

@@ -2485,7 +2485,6 @@ wxDataViewTreeStoreNode::wxDataViewTreeStoreNode(
 
 wxDataViewTreeStoreNode::~wxDataViewTreeStoreNode()
 {
-    if (m_data)
     delete m_data;
 }
 

src/common/event.cpp

@@ -1919,7 +1919,6 @@ void wxEvtHandler::DoSetClientObject( wxClientData *data )
     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
                   wxT("can't have both object and void client data") );
 
-    if ( m_clientObject )
     delete m_clientObject;
 
     m_clientObject = data;

src/common/fmapbase.cpp

@@ -407,7 +407,6 @@ wxFontMapperBase::wxFontMapperBase()
 wxFontMapperBase::~wxFontMapperBase()
 {
 #if wxUSE_CONFIG && wxUSE_FILECONFIG
-    if ( m_configDummy )
     delete m_configDummy;
 #endif // wxUSE_CONFIG
 }

src/common/fswatchercmn.cpp

@@ -87,11 +87,8 @@ wxFileSystemWatcherBase::wxFileSystemWatcherBase() :
 wxFileSystemWatcherBase::~wxFileSystemWatcherBase()
 {
     RemoveAll();
-    if (m_service)
-    {
     delete m_service;
 }
-}
 
 bool wxFileSystemWatcherBase::Add(const wxFileName& path, int events)
 {

src/common/gbsizer.cpp

@@ -182,12 +182,10 @@ wxSizerItem* wxGridBagSizer::Add( wxWindow *window,
     wxGBSizerItem* item = new wxGBSizerItem(window, pos, span, flag, border, userData);
     if ( Add(item) )
         return item;
-    else
+
-    {
     delete item;
     return NULL;
 }
-}
 
 wxSizerItem* wxGridBagSizer::Add( wxSizer *sizer,
                           const wxGBPosition& pos, const wxGBSpan& span,
@@ -196,12 +194,10 @@ wxSizerItem* wxGridBagSizer::Add( wxSizer *sizer,
     wxGBSizerItem* item = new wxGBSizerItem(sizer, pos, span, flag, border, userData);
     if ( Add(item) )
         return item;
-    else
+
-    {
     delete item;
     return NULL;
 }
-}
 
 wxSizerItem* wxGridBagSizer::Add( int width, int height,
                           const wxGBPosition& pos, const wxGBSpan& span,
@@ -210,12 +206,10 @@ wxSizerItem* wxGridBagSizer::Add( int width, int height,
     wxGBSizerItem* item = new wxGBSizerItem(width, height, pos, span, flag, border, userData);
     if ( Add(item) )
         return item;
-    else
+
-    {
     delete item;
     return NULL;
 }
-}
 
 wxSizerItem* wxGridBagSizer::Add( wxGBSizerItem *item )
 {

src/common/mediactrlcmn.cpp

@@ -269,7 +269,6 @@ const wxClassInfo* wxMediaCtrl::NextBackend(wxClassInfo::const_iterator* it)
 //---------------------------------------------------------------------------
 wxMediaCtrl::~wxMediaCtrl()
 {
-    if (m_imp)
     delete m_imp;
 }
 

src/common/mimecmn.cpp

@@ -290,7 +290,6 @@ wxFileType::wxFileType()
 
 wxFileType::~wxFileType()
 {
-    if ( m_impl )
     delete m_impl;
 }
 
@@ -589,7 +588,6 @@ wxMimeTypesManager::wxMimeTypesManager()
 
 wxMimeTypesManager::~wxMimeTypesManager()
 {
-    if ( m_impl )
     delete m_impl;
 }
 

src/common/prntbase.cpp

@@ -85,9 +85,7 @@ wxPrintFactory *wxPrintFactory::m_factory = NULL;
 
 void wxPrintFactory::SetPrintFactory( wxPrintFactory *factory )
 {
-    if (wxPrintFactory::m_factory)
     delete wxPrintFactory::m_factory;
-
     wxPrintFactory::m_factory = factory;
 }
 
@@ -1873,11 +1871,8 @@ void wxPrintPreviewBase::Init(wxPrintout *printout,
 
 wxPrintPreviewBase::~wxPrintPreviewBase()
 {
-    if (m_previewPrintout)
     delete m_previewPrintout;
-    if (m_previewBitmap)
     delete m_previewBitmap;
-    if (m_printPrintout)
     delete m_printPrintout;
 }
 

src/common/wincmn.cpp

@@ -1781,12 +1781,8 @@ wxWindow *wxWindowBase::GetAncestorWithCustomPalette() const
 
 #if wxUSE_CARET
 void wxWindowBase::SetCaret(wxCaret *caret)
-{
-    if ( m_caret )
 {
     delete m_caret;
-    }
-
     m_caret = caret;
 
     if ( m_caret )
@@ -1804,7 +1800,6 @@ void wxWindowBase::SetCaret(wxCaret *caret)
 
 void wxWindowBase::SetValidator(const wxValidator& validator)
 {
-    if ( m_windowValidator )
     delete m_windowValidator;
 
     m_windowValidator = static_cast<wxValidator *>(validator.Clone());
@@ -2321,9 +2316,7 @@ void wxWindowBase::DoSetToolTip(wxToolTip *tooltip)
 {
     if ( m_tooltip != tooltip )
     {
-        if ( m_tooltip )
         delete m_tooltip;
-
         m_tooltip = tooltip;
     }
 }

src/generic/dirctrlg.cpp

@@ -1454,7 +1454,7 @@ wxFileIconsTable::~wxFileIconsTable()
         WX_CLEAR_HASH_TABLE(*m_HashTable);
         delete m_HashTable;
     }
-    if (m_smallImageList) delete m_smallImageList;
+    delete m_smallImageList;
 }
 
 // delayed initialization - wait until first use (wxArtProv not created yet)

src/generic/dragimgg.cpp

@@ -57,12 +57,9 @@ wxIMPLEMENT_DYNAMIC_CLASS(wxGenericDragImage, wxObject);
 // ----------------------------------------------------------------------------
 
 wxGenericDragImage::~wxGenericDragImage()
-{
-    if (m_windowDC)
 {
     delete m_windowDC;
 }
-}
 
 void wxGenericDragImage::Init()
 {

src/generic/printps.cpp

@@ -100,7 +100,7 @@ bool wxPostScriptPrinter::Print(wxWindow *parent, wxPrintout *printout, bool pro
     // May have pressed cancel.
     if (!dc || !dc->IsOk())
     {
-        if (dc) delete dc;
+        delete dc;
         sm_lastError = wxPRINTER_ERROR;
         return false;
     }

src/gtk/window.cpp

@@ -5777,7 +5777,7 @@ void wxWindowGTK::SetDropTarget( wxDropTarget *dropTarget )
 
     if (m_dropTarget) m_dropTarget->GtkUnregisterWidget( dnd_widget );
 
-    if (m_dropTarget) delete m_dropTarget;
+    delete m_dropTarget;
     m_dropTarget = dropTarget;
 
     if (m_dropTarget) m_dropTarget->GtkRegisterWidget( dnd_widget );

src/html/helpwnd.cpp

@@ -605,15 +605,15 @@ wxHtmlHelpWindow::~wxHtmlHelpWindow()
     // PopEventHandler(); // wxhtmlhelpcontroller (not any more!)
     if (m_DataCreated)
         delete m_Data;
-    if (m_NormalFonts) delete m_NormalFonts;
+    delete m_NormalFonts;
-    if (m_FixedFonts) delete m_FixedFonts;
+    delete m_FixedFonts;
     if (m_PagesHash)
     {
         WX_CLEAR_HASH_TABLE(*m_PagesHash);
         delete m_PagesHash;
     }
 #if wxUSE_PRINTING_ARCHITECTURE
-    if (m_Printer) delete m_Printer;
+    delete m_Printer;
 #endif
 }
 

src/html/m_image.cpp

@@ -757,7 +757,6 @@ TAG_HANDLER_BEGIN(IMG, "IMG,MAP,AREA")
                 cel->SetId(tag.GetParam(wxT("id"))); // may be empty
                 cel->SetAlt(tag.GetParam(wxT("alt")));
                 m_WParser->GetContainer()->InsertCell(cel);
-                if (str)
                 delete str;
             }
         }

src/unix/dialup.cpp

@@ -304,7 +304,7 @@ wxDialUpManagerImpl::wxDialUpManagerImpl()
 
 wxDialUpManagerImpl::~wxDialUpManagerImpl()
 {
-   if(m_timer) delete m_timer;
+   delete m_timer;
    if(m_DialProcess)
    {
       m_DialProcess->Disconnect();

src/unix/fswatcher_inotify.cpp

@@ -703,7 +703,6 @@ wxInotifyFileSystemWatcher::wxInotifyFileSystemWatcher(const wxFileName& path,
 {
     if (!Init())
     {
-        if (m_service)
         delete m_service;
         return;
     }