Use "= default" for all trivial default ctors and dtors

Replace user-specified empty constructors and destructors with the
compiler-generated versions, which has a number of advantages for code
generation, in addition to being more clear.

Closes #22965.

Closes #24058.

include/wx/aboutdlg.h

@@ -25,7 +25,7 @@ class WXDLLIMPEXP_ADV wxAboutDialogInfo
 {
 public:
     // all fields are initially uninitialized
-    wxAboutDialogInfo() { }
+    wxAboutDialogInfo() = default;
 
     // accessors for various simply fields
     // -----------------------------------

include/wx/access.h

@@ -233,7 +233,7 @@ class WXDLLIMPEXP_CORE wxAccessibleBase : public wxObject
 
 public:
     wxAccessibleBase(wxWindow* win): m_window(win) {}
-    virtual ~wxAccessibleBase() {}
+    virtual ~wxAccessibleBase() = default;
 
 // Overridables
 

include/wx/addremovectrl.h

@@ -24,8 +24,8 @@ class WXDLLIMPEXP_CORE wxAddRemoveAdaptor
 {
 public:
     // Default ctor and trivial but virtual dtor.
-    wxAddRemoveAdaptor() { }
-    virtual ~wxAddRemoveAdaptor() { }
+    wxAddRemoveAdaptor() = default;
+    virtual ~wxAddRemoveAdaptor() = default;
 
     // Override to return the associated control.
     virtual wxWindow* GetItemsCtrl() const = 0;

include/wx/affinematrix2dbase.h

@@ -38,8 +38,8 @@ struct wxMatrix2D
 class WXDLLIMPEXP_CORE wxAffineMatrix2DBase
 {
 public:
-    wxAffineMatrix2DBase() {}
-    virtual ~wxAffineMatrix2DBase() {}
+    wxAffineMatrix2DBase() = default;
+    virtual ~wxAffineMatrix2DBase() = default;
 
     // sets the matrix to the respective values
     virtual void Set(const wxMatrix2D& mat2D, const wxPoint2DDouble& tr) = 0;

include/wx/animate.h

@@ -154,7 +154,7 @@ private:
 class WXDLLIMPEXP_CORE wxAnimationCtrlBase : public wxControl
 {
 public:
-    wxAnimationCtrlBase() { }
+    wxAnimationCtrlBase() = default;
 
     // public API
     virtual bool LoadFile(const wxString& filename,

include/wx/any.h

@@ -247,7 +247,7 @@ public:
             : m_value(value)
         {
         }
-        virtual ~DataHolder() { }
+        virtual ~DataHolder() = default;
 
         T2   m_value;
     private:
@@ -298,7 +298,7 @@ class wxAnyValueTypeImplBase : public wxAnyValueType
 
 public:
     wxAnyValueTypeImplBase() : wxAnyValueType() { }
-    virtual ~wxAnyValueTypeImplBase() { }
+    virtual ~wxAnyValueTypeImplBase() = default;
 
     virtual void DeleteValue(wxAnyValueBuffer& buf) const override
     {
@@ -348,7 +348,7 @@ class wxAnyValueTypeImpl : public wxAnyValueTypeImplBase<T>
     WX_DECLARE_ANY_VALUE_TYPE(wxAnyValueTypeImpl<T>)
 public:
     wxAnyValueTypeImpl() : wxAnyValueTypeImplBase<T>() { }
-    virtual ~wxAnyValueTypeImpl() { }
+    virtual ~wxAnyValueTypeImpl() = default;
 
     virtual bool ConvertValue(const wxAnyValueBuffer& src,
                               wxAnyValueType* dstType,
@@ -376,7 +376,7 @@ class wxAnyValueTypeImpl<T> : public wxAnyValueTypeImpl##CLSTYPE \
     typedef wxAnyBase##CLSTYPE##Type UseDataType; \
 public: \
     wxAnyValueTypeImpl() : wxAnyValueTypeImpl##CLSTYPE() { } \
-    virtual ~wxAnyValueTypeImpl() { } \
+    virtual ~wxAnyValueTypeImpl() = default; \
     static void SetValue(const T& value, wxAnyValueBuffer& buf) \
     { \
         void* voidPtr = reinterpret_cast<void*>(&buf.m_buffer[0]); \
@@ -426,7 +426,7 @@ class WXDLLIMPEXP_BASE wxAnyValueTypeImplInt :
 public:
     wxAnyValueTypeImplInt() :
         wxAnyValueTypeImplBase<wxAnyBaseIntType>() { }
-    virtual ~wxAnyValueTypeImplInt() { }
+    virtual ~wxAnyValueTypeImplInt() = default;
 
     virtual bool ConvertValue(const wxAnyValueBuffer& src,
                               wxAnyValueType* dstType,
@@ -441,7 +441,7 @@ class WXDLLIMPEXP_BASE wxAnyValueTypeImplUint :
 public:
     wxAnyValueTypeImplUint() :
         wxAnyValueTypeImplBase<wxAnyBaseUintType>() { }
-    virtual ~wxAnyValueTypeImplUint() { }
+    virtual ~wxAnyValueTypeImplUint() = default;
 
     virtual bool ConvertValue(const wxAnyValueBuffer& src,
                               wxAnyValueType* dstType,
@@ -478,7 +478,7 @@ class WXDLLIMPEXP_BASE wxAnyValueTypeImpl##TYPENAME : \
 public: \
     wxAnyValueTypeImpl##TYPENAME() : \
         wxAnyValueTypeImplBase<T>() { } \
-    virtual ~wxAnyValueTypeImpl##TYPENAME() { } \
+    virtual ~wxAnyValueTypeImpl##TYPENAME() = default; \
     virtual bool ConvertValue(const wxAnyValueBuffer& src, \
                               wxAnyValueType* dstType, \
                               wxAnyValueBuffer& dst) const override \
@@ -492,7 +492,7 @@ class wxAnyValueTypeImpl<T> : public wxAnyValueTypeImpl##TYPENAME \
 { \
 public: \
     wxAnyValueTypeImpl() : wxAnyValueTypeImpl##TYPENAME() { } \
-    virtual ~wxAnyValueTypeImpl() { } \
+    virtual ~wxAnyValueTypeImpl() = default; \
 };
 
 #define WX_ANY_DEFINE_CONVERTIBLE_TYPE(T, TYPENAME, CONVFUNC, BT) \
@@ -530,7 +530,7 @@ class WXDLLIMPEXP_BASE wxAnyValueTypeImpl<bool> :
 public:
     wxAnyValueTypeImpl() :
         wxAnyValueTypeImplBase<bool>() { }
-    virtual ~wxAnyValueTypeImpl() { }
+    virtual ~wxAnyValueTypeImpl() = default;
 
     virtual bool ConvertValue(const wxAnyValueBuffer& src,
                               wxAnyValueType* dstType,
@@ -547,7 +547,7 @@ class WXDLLIMPEXP_BASE wxAnyValueTypeImplDouble :
 public:
     wxAnyValueTypeImplDouble() :
         wxAnyValueTypeImplBase<double>() { }
-    virtual ~wxAnyValueTypeImplDouble() { }
+    virtual ~wxAnyValueTypeImplDouble() = default;
 
     virtual bool ConvertValue(const wxAnyValueBuffer& src,
                               wxAnyValueType* dstType,
@@ -575,7 +575,7 @@ class DECL wxAnyValueTypeImpl<CLS> : \
 public: \
     wxAnyValueTypeImpl() : \
         wxAnyValueTypeImplBase<CLS>() { } \
-    virtual ~wxAnyValueTypeImpl() { } \
+    virtual ~wxAnyValueTypeImpl() = default; \
  \
     virtual bool ConvertValue(const wxAnyValueBuffer& src, \
                               wxAnyValueType* dstType, \
@@ -626,7 +626,7 @@ class WXDLLIMPEXP_BASE wxAnyValueTypeImplVariantData :
 public:
     wxAnyValueTypeImplVariantData() :
         wxAnyValueTypeImplBase<wxVariantData*>() { }
-    virtual ~wxAnyValueTypeImplVariantData() { }
+    virtual ~wxAnyValueTypeImplVariantData() = default;
 
     virtual void DeleteValue(wxAnyValueBuffer& buf) const override
     {
@@ -673,7 +673,7 @@ class wxAnyValueTypeImpl<wxVariantData*> :
 {
 public:
     wxAnyValueTypeImpl() : wxAnyValueTypeImplVariantData() { }
-    virtual ~wxAnyValueTypeImpl() { }
+    virtual ~wxAnyValueTypeImpl() = default;
 };
 
 #endif // wxUSE_VARIANT

include/wx/anybutton.h

@@ -51,7 +51,7 @@
 class WXDLLIMPEXP_CORE wxAnyButtonBase : public wxControl
 {
 public:
-    wxAnyButtonBase() { }
+    wxAnyButtonBase() = default;
 
     // show the image in the button in addition to the label: this method is
     // supported on all (major) platforms

include/wx/appprogress.h

@@ -15,8 +15,8 @@
 class WXDLLIMPEXP_CORE wxAppProgressIndicatorBase
 {
 public:
-    wxAppProgressIndicatorBase() {}
-    virtual ~wxAppProgressIndicatorBase() {}
+    wxAppProgressIndicatorBase() = default;
+    virtual ~wxAppProgressIndicatorBase() = default;
 
     virtual bool IsAvailable() const = 0;
 

include/wx/apptrait.h

@@ -39,7 +39,7 @@ class WXDLLIMPEXP_BASE wxAppTraitsBase
 {
 public:
     // needed since this class declares virtual members
-    virtual ~wxAppTraitsBase() { }
+    virtual ~wxAppTraitsBase() = default;
 
     // hooks for working with the global objects, may be overridden by the user
     // ------------------------------------------------------------------------

include/wx/archive.h

@@ -23,7 +23,7 @@
 class WXDLLIMPEXP_BASE wxArchiveNotifier
 {
 public:
-    virtual ~wxArchiveNotifier() { }
+    virtual ~wxArchiveNotifier() = default;
 
     virtual void OnEntryUpdated(class wxArchiveEntry& entry) = 0;
 };
@@ -37,7 +37,7 @@ public:
 class WXDLLIMPEXP_BASE wxArchiveEntry : public wxObject
 {
 public:
-    virtual ~wxArchiveEntry() { }
+    virtual ~wxArchiveEntry() = default;
 
     virtual wxDateTime   GetDateTime() const = 0;
     virtual wxFileOffset GetSize() const = 0;
@@ -92,7 +92,7 @@ class WXDLLIMPEXP_BASE wxArchiveInputStream : public wxFilterInputStream
 public:
     typedef wxArchiveEntry entry_type;
 
-    virtual ~wxArchiveInputStream() { }
+    virtual ~wxArchiveInputStream() = default;
 
     virtual bool OpenEntry(wxArchiveEntry& entry) = 0;
     virtual bool CloseEntry() = 0;
@@ -129,7 +129,7 @@ private:
 class WXDLLIMPEXP_BASE wxArchiveOutputStream : public wxFilterOutputStream
 {
 public:
-    virtual ~wxArchiveOutputStream() { }
+    virtual ~wxArchiveOutputStream() = default;
 
     virtual bool PutNextEntry(wxArchiveEntry *entry) = 0;
 
@@ -314,7 +314,7 @@ public:
     typedef wxArchiveIter         iter_type;
     typedef wxArchivePairIter     pairiter_type;
 
-    virtual ~wxArchiveClassFactory() { }
+    virtual ~wxArchiveClassFactory() = default;
 
     wxArchiveEntry *NewEntry() const
         { return DoNewEntry(); }

include/wx/arrstr.h

@@ -72,7 +72,7 @@ public:
     typedef int (wxCMPFUNC_CONV *CompareFunction)(const wxString& first,
                                                   const wxString& second);
 
-    wxArrayString() { }
+    wxArrayString() = default;
     wxArrayString(size_t sz, const char** a);
     wxArrayString(size_t sz, const wchar_t** a);
     wxArrayString(size_t sz, const wxString* a);

include/wx/atomic.h

@@ -108,7 +108,7 @@ inline wxUint32 wxAtomicDec (wxUint32 &value) { return --value; }
 class wxAtomicInt32
 {
 public:
-    wxAtomicInt32() { } // non initialized for consistency with basic int type
+    wxAtomicInt32() = default; // non initialized for consistency with basic int type
     wxAtomicInt32(wxInt32 v) : m_value(v) { }
     wxAtomicInt32(const wxAtomicInt32& a) : m_value(a.m_value) {}
 

include/wx/aui/auibar.h

@@ -264,8 +264,8 @@ class WXDLLIMPEXP_AUI wxAuiToolBarArt
 {
 public:
 
-    wxAuiToolBarArt() { }
-    virtual ~wxAuiToolBarArt() { }
+    wxAuiToolBarArt() = default;
+    virtual ~wxAuiToolBarArt() = default;
 
     virtual wxAuiToolBarArt* Clone() = 0;
     virtual void SetFlags(unsigned int flags) = 0;

include/wx/aui/dockart.h

@@ -31,8 +31,8 @@ class WXDLLIMPEXP_AUI wxAuiDockArt
 {
 public:
 
-    wxAuiDockArt() { }
-    virtual ~wxAuiDockArt() { }
+    wxAuiDockArt() = default;
+    virtual ~wxAuiDockArt() = default;
 
     virtual wxAuiDockArt* Clone() = 0;
     virtual int GetMetric(int id) = 0;

include/wx/aui/framemanager.h

@@ -160,7 +160,7 @@ public:
         DefaultPane();
     }
 
-    ~wxAuiPaneInfo() {}
+    ~wxAuiPaneInfo() = default;
 
     // Write the safe parts of a newly loaded PaneInfo structure "source" into "this"
     // used on loading perspectives etc.

include/wx/aui/tabart.h

@@ -40,8 +40,8 @@ class WXDLLIMPEXP_AUI wxAuiTabArt
 {
 public:
 
-    wxAuiTabArt() { }
-    virtual ~wxAuiTabArt() { }
+    wxAuiTabArt() = default;
+    virtual ~wxAuiTabArt() = default;
 
     virtual wxAuiTabArt* Clone() = 0;
     virtual void SetFlags(unsigned int flags) = 0;

include/wx/bitmap.h

@@ -117,7 +117,7 @@ class WXDLLIMPEXP_CORE wxBitmapHandler : public wxObject
 {
 public:
     wxBitmapHandler() { m_type = wxBITMAP_TYPE_INVALID; }
-    virtual ~wxBitmapHandler() { }
+    virtual ~wxBitmapHandler() = default;
 
     // NOTE: the following functions should be pure virtuals, but they aren't
     //       because otherwise almost all ports would have to implement

include/wx/bmpcbox.h

@@ -39,7 +39,7 @@ public:
     // ctors and such
     wxBitmapComboBoxBase() { Init(); }
 
-    virtual ~wxBitmapComboBoxBase() { }
+    virtual ~wxBitmapComboBoxBase() = default;
 
     // Sets the image for the given item.
     virtual void SetItemBitmap(unsigned int n, const wxBitmapBundle& bitmap) = 0;

include/wx/brush.h

@@ -40,7 +40,7 @@ enum wxBrushStyle
 class WXDLLIMPEXP_CORE wxBrushBase: public wxGDIObject
 {
 public:
-    virtual ~wxBrushBase() { }
+    virtual ~wxBrushBase() = default;
 
     virtual void SetColour(const wxColour& col) = 0;
     virtual void SetColour(unsigned char r, unsigned char g, unsigned char b) = 0;

include/wx/button.h

@@ -25,7 +25,7 @@ extern WXDLLIMPEXP_DATA_CORE(const char) wxButtonNameStr[];
 class WXDLLIMPEXP_CORE wxButtonBase : public wxAnyButton
 {
 public:
-    wxButtonBase() { }
+    wxButtonBase() = default;
 
     // show the authentication needed symbol on the button: this is currently
     // only implemented in wxMSW where it shows the UAC shield symbol

include/wx/caret.h

@@ -56,7 +56,7 @@ public:
     }
 
     // a virtual dtor has been provided since this class has virtual members
-    virtual ~wxCaretBase() { }
+    virtual ~wxCaretBase() = default;
 
     // Create() functions - same as ctor but returns the success code
     // --------------------------------------------------------------

include/wx/catch_cppunit.h

@@ -126,7 +126,7 @@ public:
     // not used here.
     explicit Test(const std::string& name = std::string()) : m_name(name) { }
 
-    virtual ~Test() { }
+    virtual ~Test() = default;
 
     virtual void runTest() = 0;
 

include/wx/checkbox.h

@@ -48,7 +48,7 @@ extern WXDLLIMPEXP_DATA_CORE(const char) wxCheckBoxNameStr[];
 class WXDLLIMPEXP_CORE wxCheckBoxBase : public wxControl
 {
 public:
-    wxCheckBoxBase() { }
+    wxCheckBoxBase() = default;
 
     // set/get the checked status of the listbox
     virtual void SetValue(bool value) = 0;

include/wx/checklst.h

@@ -23,7 +23,7 @@
 class WXDLLIMPEXP_CORE wxCheckListBoxBase : public wxListBox
 {
 public:
-    wxCheckListBoxBase() { }
+    wxCheckListBoxBase() = default;
 
     // check list box specific methods
     virtual bool IsChecked(unsigned int item) const = 0;

include/wx/choice.h

@@ -33,7 +33,7 @@ extern WXDLLIMPEXP_DATA_CORE(const char) wxChoiceNameStr[];
 class WXDLLIMPEXP_CORE wxChoiceBase : public wxControlWithItems
 {
 public:
-    wxChoiceBase() { }
+    wxChoiceBase() = default;
     virtual ~wxChoiceBase();
 
     // all generic methods are in wxControlWithItems

include/wx/choicebk.h

@@ -38,7 +38,7 @@ wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_CORE, wxEVT_CHOICEBOOK_PAGE_CHANGING, wxBo
 class WXDLLIMPEXP_CORE wxChoicebook : public wxCompositeBookCtrlBase
 {
 public:
-    wxChoicebook() { }
+    wxChoicebook() = default;
 
     wxChoicebook(wxWindow *parent,
                  wxWindowID id,

include/wx/clntdata.h

@@ -24,7 +24,7 @@ using wxShadowObjectFields = std::unordered_map<wxString, void*>;
 class WXDLLIMPEXP_BASE wxShadowObject
 {
 public:
-    wxShadowObject() { }
+    wxShadowObject() = default;
 
     void AddMethod( const wxString &name, wxShadowObjectMethod method )
     {
@@ -91,8 +91,8 @@ enum wxClientDataType
 class WXDLLIMPEXP_BASE wxClientData
 {
 public:
-    wxClientData() { }
-    virtual ~wxClientData() { }
+    wxClientData() = default;
+    virtual ~wxClientData() = default;
 };
 
 class WXDLLIMPEXP_BASE wxStringClientData : public wxClientData

include/wx/clrpicker.h

@@ -40,7 +40,7 @@ class WXDLLIMPEXP_CORE wxColourPickerWidgetBase
 {
 public:
     wxColourPickerWidgetBase() : m_colour(*wxBLACK) { }
-    virtual ~wxColourPickerWidgetBase() {}
+    virtual ~wxColourPickerWidgetBase() = default;
 
     wxColour GetColour() const
         { return m_colour; }
@@ -99,8 +99,8 @@ protected:
 class WXDLLIMPEXP_CORE wxColourPickerCtrl : public wxPickerBase
 {
 public:
-    wxColourPickerCtrl() {}
-    virtual ~wxColourPickerCtrl() {}
+    wxColourPickerCtrl() = default;
+    virtual ~wxColourPickerCtrl() = default;
 
 
     wxColourPickerCtrl(wxWindow *parent, wxWindowID id,
@@ -164,7 +164,7 @@ wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_CORE, wxEVT_COLOURPICKER_DIALOG_CANCELLED,
 class WXDLLIMPEXP_CORE wxColourPickerEvent : public wxCommandEvent
 {
 public:
-    wxColourPickerEvent() {}
+    wxColourPickerEvent() = default;
     wxColourPickerEvent(wxObject *generator, int id, const wxColour &col, wxEventType commandType = wxEVT_COLOURPICKER_CHANGED)
         : wxCommandEvent(commandType, id),
           m_colour(col)

include/wx/cmdline.h

@@ -101,7 +101,7 @@ struct wxCmdLineEntryDesc
 class WXDLLIMPEXP_BASE wxCmdLineArg
 {
 public:
-    virtual ~wxCmdLineArg() {}
+    virtual ~wxCmdLineArg() = default;
 
     virtual double GetDoubleVal() const = 0;
     virtual long GetLongVal() const = 0;

include/wx/cmdproc.h

@@ -24,7 +24,7 @@ class WXDLLIMPEXP_CORE wxCommand : public wxObject
 {
 public:
     wxCommand(bool canUndoIt = false, const wxString& name = wxEmptyString);
-    virtual ~wxCommand(){}
+    virtual ~wxCommand() = default;
 
     // Override this to perform a command
     virtual bool Do() = 0;

include/wx/collheaderctrl.h

@@ -26,7 +26,7 @@ extern WXDLLIMPEXP_DATA_CORE(const char) wxCollapsibleHeaderCtrlNameStr[];
 class WXDLLIMPEXP_CORE wxCollapsibleHeaderCtrlBase : public wxControl
 {
 public:
-    wxCollapsibleHeaderCtrlBase() { }
+    wxCollapsibleHeaderCtrlBase() = default;
 
     wxCollapsibleHeaderCtrlBase(wxWindow *parent,
         wxWindowID id,
@@ -82,7 +82,7 @@ class WXDLLIMPEXP_CORE wxCollapsibleHeaderCtrl
     : public wxGenericCollapsibleHeaderCtrl
 {
 public:
-    wxCollapsibleHeaderCtrl() { }
+    wxCollapsibleHeaderCtrl() = default;
 
     wxCollapsibleHeaderCtrl(wxWindow *parent,
         wxWindowID id,

include/wx/collpane.h

@@ -30,7 +30,7 @@ extern WXDLLIMPEXP_DATA_CORE(const char) wxCollapsiblePaneNameStr[];
 class WXDLLIMPEXP_CORE wxCollapsiblePaneBase : public wxControl
 {
 public:
-    wxCollapsiblePaneBase() {}
+    wxCollapsiblePaneBase() = default;
 
     virtual void Collapse(bool collapse = true) = 0;
     void Expand() { Collapse(false); }
@@ -73,7 +73,7 @@ wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_CORE, wxEVT_COLLAPSIBLEPANE_CHANGED, wxCol
 class WXDLLIMPEXP_CORE wxCollapsiblePaneEvent : public wxCommandEvent
 {
 public:
-    wxCollapsiblePaneEvent() {}
+    wxCollapsiblePaneEvent() = default;
     wxCollapsiblePaneEvent(wxObject *generator, int id, bool collapsed)
         : wxCommandEvent(wxEVT_COLLAPSIBLEPANE_CHANGED, id),
         m_bCollapsed(collapsed)

include/wx/colour.h

@@ -88,8 +88,8 @@ public:
     // type of a single colour component
     typedef unsigned char ChannelType;
 
-    wxColourBase() {}
-    virtual ~wxColourBase() {}
+    wxColourBase() = default;
+    virtual ~wxColourBase() = default;
 
 
     // Set() functions

include/wx/containr.h

@@ -46,7 +46,7 @@ public:
         m_inSetFocus = false;
         m_winLastFocused = nullptr;
     }
-    virtual ~wxControlContainerBase() {}
+    virtual ~wxControlContainerBase() = default;
 
     void SetContainerWindow(wxWindow *winParent)
     {

include/wx/control.h

@@ -31,7 +31,7 @@ extern WXDLLIMPEXP_DATA_CORE(const char) wxControlNameStr[];
 class WXDLLIMPEXP_CORE wxControlBase : public wxWindow
 {
 public:
-    wxControlBase() { }
+    wxControlBase() = default;
 
     virtual ~wxControlBase();
 

include/wx/cshelp.h

@@ -67,7 +67,7 @@ private:
 class WXDLLIMPEXP_CORE wxContextHelpButton : public wxBitmapButton
 {
 public:
-    wxContextHelpButton() {}
+    wxContextHelpButton() = default;
 
     wxContextHelpButton(wxWindow* parent,
                         wxWindowID id = wxID_CONTEXT_HELP,

include/wx/ctrlsub.h

@@ -33,7 +33,7 @@
 class WXDLLIMPEXP_CORE wxItemContainerImmutable
 {
 public:
-    wxItemContainerImmutable() { }
+    wxItemContainerImmutable() = default;
     virtual ~wxItemContainerImmutable();
 
     // accessing strings
@@ -415,7 +415,7 @@ public:
     typedef W BaseWindowClass;
     typedef C BaseContainerInterface;
 
-    wxWindowWithItems() { }
+    wxWindowWithItems() = default;
 
     void SetClientData(void *data)
         { BaseWindowClass::SetClientData(data); }
@@ -440,7 +440,7 @@ class WXDLLIMPEXP_CORE wxControlWithItemsBase :
     public wxWindowWithItems<wxControl, wxItemContainer>
 {
 public:
-    wxControlWithItemsBase() { }
+    wxControlWithItemsBase() = default;
 
     // usually the controls like list/combo boxes have their own background
     // colour
@@ -472,7 +472,7 @@ private:
     class WXDLLIMPEXP_CORE wxControlWithItems : public wxControlWithItemsBase
     {
     public:
-        wxControlWithItems() { }
+        wxControlWithItems() = default;
 
     private:
         wxDECLARE_ABSTRACT_CLASS(wxControlWithItems);

include/wx/custombgwin.h

@@ -23,10 +23,10 @@ class wxCustomBackgroundWindowBase
 {
 public:
     // Trivial default ctor.
-    wxCustomBackgroundWindowBase() { }
+    wxCustomBackgroundWindowBase() = default;
 
     // Also a trivial but virtual -- to suppress g++ warnings -- dtor.
-    virtual ~wxCustomBackgroundWindowBase() { }
+    virtual ~wxCustomBackgroundWindowBase() = default;
 
     // Use the given bitmap to tile the background of this window. This bitmap
     // will show through any transparent children.

include/wx/dataview.h

@@ -1402,7 +1402,7 @@ class WXDLLIMPEXP_CORE wxDataViewTreeCtrl: public wxDataViewCtrl,
                                           public wxWithImages
 {
 public:
-    wxDataViewTreeCtrl() { }
+    wxDataViewTreeCtrl() = default;
     wxDataViewTreeCtrl(wxWindow *parent,
                        wxWindowID id,
                        const wxPoint& pos = wxDefaultPosition,

include/wx/datectrl.h

@@ -99,7 +99,7 @@ typedef wxDatePickerCtrlCommonBase<wxDateTimePickerCtrl> wxDatePickerCtrlBase;
     class WXDLLIMPEXP_ADV wxDatePickerCtrl : public wxDatePickerCtrlGeneric
     {
     public:
-        wxDatePickerCtrl() { }
+        wxDatePickerCtrl() = default;
         wxDatePickerCtrl(wxWindow *parent,
                          wxWindowID id,
                          const wxDateTime& date = wxDefaultDateTime,

include/wx/dateevt.h

@@ -21,7 +21,7 @@
 class WXDLLIMPEXP_ADV wxDateEvent : public wxCommandEvent
 {
 public:
-    wxDateEvent() { }
+    wxDateEvent() = default;
     wxDateEvent(wxWindow *win, const wxDateTime& dt, wxEventType type)
         : wxCommandEvent(type, win->GetId()),
           m_date(dt)

include/wx/datetime.h

@@ -1226,7 +1226,7 @@ public:
     static wxTimeSpan Week() { return Weeks(1); }
 
         // default ctor constructs the 0 time span
-    wxTimeSpan() { }
+    wxTimeSpan() = default;
 
         // from separate values for each component, date set to 0 (hours are
         // not restricted to 0..24 range, neither are minutes, seconds or

include/wx/dc.h

@@ -114,8 +114,8 @@ class WXDLLIMPEXP_FWD_CORE wxDCImpl;
 class WXDLLIMPEXP_CORE wxDCFactory
 {
 public:
-    wxDCFactory() {}
-    virtual ~wxDCFactory() {}
+    wxDCFactory() = default;
+    virtual ~wxDCFactory() = default;
 
     virtual wxDCImpl* CreateWindowDC( wxWindowDC *owner, wxWindow *window ) = 0;
     virtual wxDCImpl* CreateClientDC( wxClientDC *owner, wxWindow *window ) = 0;
@@ -142,7 +142,7 @@ private:
 class WXDLLIMPEXP_CORE wxNativeDCFactory: public wxDCFactory
 {
 public:
-    wxNativeDCFactory() {}
+    wxNativeDCFactory() = default;
 
     virtual wxDCImpl* CreateWindowDC( wxWindowDC *owner, wxWindow *window ) override;
     virtual wxDCImpl* CreateClientDC( wxClientDC *owner, wxWindow *window ) override;

include/wx/dcbuffer.h

@@ -225,7 +225,7 @@ public:
         );
     }
 
-    virtual ~wxAutoBufferedPaintDC() { }
+    virtual ~wxAutoBufferedPaintDC() = default;
 
 private:
     wxDECLARE_NO_COPY_CLASS(wxAutoBufferedPaintDC);

include/wx/dcsvg.h

@@ -46,7 +46,7 @@ public:
                                wxCoord x, wxCoord y,
                                wxOutputStream& stream) const = 0;
 
-    virtual ~wxSVGBitmapHandler() {}
+    virtual ~wxSVGBitmapHandler() = default;
 };
 
 // Predefined standard bitmap handler: creates a file, stores the bitmap in

include/wx/debugrpt.h

@@ -137,7 +137,7 @@ private:
 class WXDLLIMPEXP_QA wxDebugReportCompress : public wxDebugReport
 {
 public:
-    wxDebugReportCompress() { }
+    wxDebugReportCompress() = default;
 
     // you can optionally specify the directory and/or name of the file where
     // the debug report should be generated, a default location under the
@@ -222,7 +222,7 @@ class WXDLLIMPEXP_QA wxDebugReportPreview
 {
 public:
     // ctor is trivial
-    wxDebugReportPreview() { }
+    wxDebugReportPreview() = default;
 
     // present the report to the user and allow him to modify it by removing
     // some or all of the files and, potentially, adding some notes
@@ -232,7 +232,7 @@ public:
     virtual bool Show(wxDebugReport& dbgrpt) const = 0;
 
     // dtor is trivial as well but should be virtual for a base class
-    virtual ~wxDebugReportPreview() { }
+    virtual ~wxDebugReportPreview() = default;
 };
 
 #if wxUSE_GUI
@@ -244,7 +244,7 @@ public:
 class WXDLLIMPEXP_QA wxDebugReportPreviewStd : public wxDebugReportPreview
 {
 public:
-    wxDebugReportPreviewStd() { }
+    wxDebugReportPreviewStd() = default;
 
     virtual bool Show(wxDebugReport& dbgrpt) const override;
 };

include/wx/dfb/bitmap.h

@@ -23,7 +23,7 @@ wxDFB_DECLARE_INTERFACE(IDirectFBSurface);
 class WXDLLIMPEXP_CORE wxBitmap : public wxBitmapBase
 {
 public:
-    wxBitmap() {}
+    wxBitmap() = default;
     wxBitmap(const wxIDirectFBSurfacePtr& surface) { Create(surface); }
     wxBitmap(int width, int height, int depth = -1) { Create(width, height, depth); }
     wxBitmap(const wxSize& sz, int depth = -1) { Create(sz, depth); }

include/wx/dfb/brush.h

@@ -30,7 +30,7 @@ class WXDLLIMPEXP_FWD_CORE wxBrush;
 class WXDLLIMPEXP_CORE wxBrush : public wxBrushBase
 {
 public:
-    wxBrush() {}
+    wxBrush() = default;
     wxBrush(const wxColour &colour, wxBrushStyle style = wxBRUSHSTYLE_SOLID);
     wxBrush(const wxBitmap &stippleBitmap);
 

include/wx/dfb/cursor.h

@@ -20,7 +20,7 @@ class WXDLLIMPEXP_FWD_CORE wxImage;
 class WXDLLIMPEXP_CORE wxCursor : public wxCursorBase
 {
 public:
-    wxCursor() {}
+    wxCursor() = default;
     wxCursor(wxStockCursor id) { InitFromStock(id); }
 #if wxUSE_IMAGE
     wxCursor(const wxImage& image);

include/wx/dfb/font.h

@@ -21,7 +21,7 @@ wxDFB_DECLARE_INTERFACE(IDirectFBFont);
 class WXDLLIMPEXP_CORE wxFont : public wxFontBase
 {
 public:
-    wxFont() {}
+    wxFont() = default;
 
     wxFont(const wxFontInfo& info)
     {

include/wx/dfb/pen.h

@@ -30,7 +30,7 @@ class WXDLLIMPEXP_FWD_CORE wxPen;
 class WXDLLIMPEXP_CORE wxPen: public wxPenBase
 {
 public:
-    wxPen() {}
+    wxPen() = default;
     wxPen(const wxColour &colour, int width = 1, wxPenStyle style = wxPENSTYLE_SOLID);
 
     wxPen(const wxBitmap& stipple, int width);

include/wx/dfb/popupwin.h

@@ -17,7 +17,7 @@
 class WXDLLIMPEXP_CORE wxPopupWindow : public wxPopupWindowBase
 {
 public:
-    wxPopupWindow() {}
+    wxPopupWindow() = default;
 
     wxPopupWindow(wxWindow *parent, int flags = wxBORDER_NONE)
         { Create(parent, flags); }

include/wx/dfb/region.h

@@ -66,7 +66,7 @@ protected:
 class WXDLLIMPEXP_CORE wxRegionIterator : public wxObject
 {
 public:
-    wxRegionIterator() {}
+    wxRegionIterator() = default;
     wxRegionIterator(const wxRegion& region) { Reset(region); }
 
     void Reset() { m_rect = wxRect(); }

include/wx/dfb/wrapdfb.h

@@ -58,7 +58,7 @@ bool wxDfbCheckReturn(DFBResult code);
 #define WXDFB_DEFINE_EVENT_WRAPPER(T)                                       \
     struct wx##T                                                            \
     {                                                                       \
-        wx##T() {}                                                          \
+        wx##T() = default;                                                  \
         wx##T(const T& event) : m_event(event) {}                           \
                                                                             \
         operator T&() { return m_event; }                                   \
@@ -103,7 +103,7 @@ protected:
     wxDfbWrapperBase() : m_refCnt(1), m_lastResult(DFB_OK) {}
 
     /// Dtor may only be called from Release()
-    virtual ~wxDfbWrapperBase() {}
+    virtual ~wxDfbWrapperBase() = default;
 
     /**
         Checks the @a result of a DirectFB call and returns true if it was

include/wx/dialog.h

@@ -64,7 +64,7 @@ class WXDLLIMPEXP_CORE wxDialogBase : public wxNavigationEnabled<wxTopLevelWindo
 {
 public:
     wxDialogBase();
-    virtual ~wxDialogBase() { }
+    virtual ~wxDialogBase() = default;
 
     // define public wxDialog methods to be implemented by the derived classes
     virtual int ShowModal() = 0;
@@ -300,7 +300,7 @@ class WXDLLIMPEXP_CORE wxDialogLayoutAdapter: public wxObject
 {
     wxDECLARE_CLASS(wxDialogLayoutAdapter);
 public:
-    wxDialogLayoutAdapter() {}
+    wxDialogLayoutAdapter() = default;
 
     // Override this function to indicate that adaptation should be done
     virtual bool CanDoLayoutAdaptation(wxDialog* dialog) = 0;
@@ -318,7 +318,7 @@ class WXDLLIMPEXP_CORE wxStandardDialogLayoutAdapter: public wxDialogLayoutAdapt
 {
     wxDECLARE_CLASS(wxStandardDialogLayoutAdapter);
 public:
-    wxStandardDialogLayoutAdapter() {}
+    wxStandardDialogLayoutAdapter() = default;
 
 // Overrides
 

include/wx/dialup.h

@@ -56,7 +56,7 @@ public:
     virtual bool IsOk() const = 0;
 
     // virtual dtor for any base class
-    virtual ~wxDialUpManager() { }
+    virtual ~wxDialUpManager() = default;
 
     // operations
     // ----------

include/wx/dir.h

@@ -57,7 +57,7 @@ class WXDLLIMPEXP_BASE wxDirTraverser
 {
 public:
     /// a virtual dtor has been provided since this class has virtual members
-    virtual ~wxDirTraverser() { }
+    virtual ~wxDirTraverser() = default;
     // called for each file found by wxDir::Traverse()
     //
     // return wxDIR_STOP or wxDIR_CONTINUE from here (wxDIR_IGNORE doesn't

include/wx/dirdlg.h

@@ -53,7 +53,7 @@ extern WXDLLIMPEXP_DATA_CORE(const char) wxDirSelectorPromptStr[];
 class WXDLLIMPEXP_CORE wxDirDialogBase : public wxDialog
 {
 public:
-    wxDirDialogBase() {}
+    wxDirDialogBase() = default;
     wxDirDialogBase(wxWindow *parent,
                     const wxString& title = wxASCII_STR(wxDirSelectorPromptStr),
                     const wxString& defaultPath = wxEmptyString,
@@ -65,7 +65,7 @@ public:
         Create(parent, title, defaultPath, style, pos, sz, name);
     }
 
-    virtual ~wxDirDialogBase() {}
+    virtual ~wxDirDialogBase() = default;
 
 
     bool Create(wxWindow *parent,

include/wx/dnd.h

@@ -62,7 +62,7 @@ public:
           m_cursorMove(cursorMove),
           m_cursorStop(cursorStop)
         { m_data = nullptr; }
-    virtual ~wxDropSourceBase() { }
+    virtual ~wxDropSourceBase() = default;
 
     // set the data which is transferred by drag and drop
     void SetData(wxDataObject& data)

include/wx/docmdi.h

@@ -62,7 +62,7 @@ typedef
 class WXDLLIMPEXP_CORE wxDocMDIChildFrame : public wxDocMDIChildFrameBase
 {
 public:
-    wxDocMDIChildFrame() { }
+    wxDocMDIChildFrame() = default;
 
     wxDocMDIChildFrame(wxDocument *doc,
                        wxView *view,

include/wx/docview.h

@@ -674,7 +674,7 @@ public:
     typedef ChildFrame BaseClass;
 
     // default ctor, use Create after it
-    wxDocChildFrameAny() { }
+    wxDocChildFrameAny() = default;
 
     // ctor for a frame showing the given view of the specified document
     wxDocChildFrameAny(wxDocument *doc,

include/wx/dvrenderers.h

@@ -125,7 +125,7 @@ enum wxDataViewCellRenderState
 class WXDLLIMPEXP_CORE wxDataViewValueAdjuster
 {
 public:
-    virtual ~wxDataViewValueAdjuster() {}
+    virtual ~wxDataViewValueAdjuster() = default;
 
     // changes the value to have appearance suitable for highlighted rows
     virtual wxVariant MakeHighlighted(const wxVariant& value) const { return value; }

include/wx/event.h

@@ -461,7 +461,7 @@ private:
     void (Class::*m_method)(EventArg&);
 
     // Provide a dummy default ctor for type info purposes
-    wxEventFunctorMethod() { }
+    wxEventFunctorMethod() = default;
 
     typedef wxEventFunctorMethod<EventTag, Class,
                                  EventArg, EventHandler> thisClass;
@@ -517,7 +517,7 @@ private:
     void (*m_handler)(EventArg&);
 
     // Provide a dummy default ctor for type info purposes
-    wxEventFunctorFunction() { }
+    wxEventFunctorFunction() = default;
 
     typedef wxEventFunctorFunction<EventTag, EventArg> thisClass;
     WX_DECLARE_TYPEINFO_INLINE(thisClass)
@@ -569,7 +569,7 @@ private:
     const void *m_handlerAddr;
 
     // Provide a dummy default ctor for type info purposes
-    wxEventFunctorFunctor() { }
+    wxEventFunctorFunctor() = default;
 
     typedef wxEventFunctorFunctor<EventTag, Functor> thisClass;
     WX_DECLARE_TYPEINFO_INLINE(thisClass)

include/wx/evtloopsrc.h

@@ -39,7 +39,7 @@ public:
     virtual void OnExceptionWaiting() = 0;
 
     // virtual dtor for the base class
-    virtual ~wxEventLoopSourceHandler() { }
+    virtual ~wxEventLoopSourceHandler() = default;
 };
 
 // flags describing which kind of IO events we're interested in

include/wx/ffile.h

@@ -115,7 +115,7 @@ class WXDLLIMPEXP_BASE wxTempFFile
 public:
   // ctors
     // default
-  wxTempFFile() { }
+  wxTempFFile() = default;
     // associates the temp file with the file to be replaced and opens it
   explicit wxTempFFile(const wxString& strName);
 

include/wx/file.h

@@ -144,7 +144,7 @@ class WXDLLIMPEXP_BASE wxTempFile
 public:
   // ctors
     // default
-  wxTempFile() { }
+  wxTempFile() = default;
     // associates the temp file with the file to be replaced and opens it
   explicit wxTempFile(const wxString& strName);
 

include/wx/filectrl.h

@@ -32,7 +32,7 @@ extern WXDLLIMPEXP_DATA_CORE(const char) wxFileCtrlNameStr[]; // in filectrlcmn.
 class WXDLLIMPEXP_CORE wxFileCtrlBase
 {
 public:
-    virtual ~wxFileCtrlBase() {}
+    virtual ~wxFileCtrlBase() = default;
 
     virtual void SetWildcard( const wxString& wildCard ) = 0;
     virtual void SetFilterIndex( int filterindex ) = 0;
@@ -89,7 +89,7 @@ void wxGenerateFileActivatedEvent( wxFileCtrlBase *fileCtrl, wxWindow *wnd, cons
 class WXDLLIMPEXP_CORE wxFileCtrlEvent : public wxCommandEvent
 {
 public:
-    wxFileCtrlEvent() {}
+    wxFileCtrlEvent() = default;
     wxFileCtrlEvent( wxEventType type, wxObject *evtObject, int id )
             : wxCommandEvent( type, id )
     {

include/wx/filedlg.h

@@ -89,7 +89,7 @@ public:
         Create(parent, message, defaultDir, defaultFile, wildCard, style, pos, sz, name);
     }
 
-    virtual ~wxFileDialogBase() {}
+    virtual ~wxFileDialogBase() = default;
 
 
     bool Create(wxWindow *parent,

include/wx/filefn.h

@@ -583,7 +583,7 @@ private:
 class WXDLLIMPEXP_BASE wxPathList : public wxArrayString
 {
 public:
-    wxPathList() {}
+    wxPathList() = default;
     wxPathList(const wxArrayString &arr)
         { Add(arr); }
 

include/wx/filepicker.h

@@ -37,7 +37,7 @@ extern WXDLLIMPEXP_DATA_CORE(const char) wxDirSelectorPromptStr[];
 class WXDLLIMPEXP_CORE wxFileDirPickerEvent : public wxCommandEvent
 {
 public:
-    wxFileDirPickerEvent() {}
+    wxFileDirPickerEvent() = default;
     wxFileDirPickerEvent(wxEventType type, wxObject *generator, int id, const wxString &path)
         : wxCommandEvent(type, id),
           m_path(path)
@@ -82,8 +82,8 @@ typedef void (wxEvtHandler::*wxFileDirPickerEventFunction)(wxFileDirPickerEvent&
 class WXDLLIMPEXP_CORE wxFileDirPickerWidgetBase
 {
 public:
-    wxFileDirPickerWidgetBase() {  }
-    virtual ~wxFileDirPickerWidgetBase() {  }
+    wxFileDirPickerWidgetBase() = default;
+    virtual ~wxFileDirPickerWidgetBase() = default;
 
     // Path here is the name of the selected file or directory.
     wxString GetPath() const { return m_path; }
@@ -232,7 +232,7 @@ protected:
 class WXDLLIMPEXP_CORE wxFilePickerCtrl : public wxFileDirPickerCtrlBase
 {
 public:
-    wxFilePickerCtrl() {}
+    wxFilePickerCtrl() = default;
 
     wxFilePickerCtrl(wxWindow *parent,
                      wxWindowID id,
@@ -337,7 +337,7 @@ private:
 class WXDLLIMPEXP_CORE wxDirPickerCtrl : public wxFileDirPickerCtrlBase
 {
 public:
-    wxDirPickerCtrl() {}
+    wxDirPickerCtrl() = default;
 
     wxDirPickerCtrl(wxWindow *parent, wxWindowID id,
                     const wxString& path = wxEmptyString,

include/wx/fontdlg.h

@@ -25,7 +25,7 @@ class WXDLLIMPEXP_CORE wxFontDialogBase : public wxDialog
 {
 public:
     // create the font dialog
-    wxFontDialogBase() { }
+    wxFontDialogBase() = default;
     wxFontDialogBase(wxWindow *parent) { m_parent = parent; }
     wxFontDialogBase(wxWindow *parent, const wxFontData& data)
         { m_parent = parent; InitFontData(&data); }

include/wx/fontenum.h

@@ -27,10 +27,10 @@
 class WXDLLIMPEXP_CORE wxFontEnumerator
 {
 public:
-    wxFontEnumerator() {}
+    wxFontEnumerator() = default;
 
     // virtual dtor for the base class
-    virtual ~wxFontEnumerator() {}
+    virtual ~wxFontEnumerator() = default;
 
     // start enumerating font facenames (either all of them or those which
     // support the given encoding) - will result in OnFacename() being

include/wx/fontpicker.h

@@ -33,7 +33,7 @@ class WXDLLIMPEXP_CORE wxFontPickerWidgetBase
 {
 public:
     wxFontPickerWidgetBase() : m_selectedFont(*wxNORMAL_FONT) { }
-    virtual ~wxFontPickerWidgetBase() {}
+    virtual ~wxFontPickerWidgetBase() = default;
 
     wxFont GetSelectedFont() const
         { return m_selectedFont; }
@@ -106,7 +106,7 @@ public:
     {
     }
 
-    virtual ~wxFontPickerCtrl() {}
+    virtual ~wxFontPickerCtrl() = default;
 
 
     wxFontPickerCtrl(wxWindow *parent,
@@ -200,7 +200,7 @@ wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_CORE, wxEVT_FONTPICKER_CHANGED, wxFontPick
 class WXDLLIMPEXP_CORE wxFontPickerEvent : public wxCommandEvent
 {
 public:
-    wxFontPickerEvent() {}
+    wxFontPickerEvent() = default;
     wxFontPickerEvent(wxObject *generator, int id, const wxFont &f)
         : wxCommandEvent(wxEVT_FONTPICKER_CHANGED, id),
           m_font(f)

include/wx/fs_filter.h

@@ -23,7 +23,7 @@ class WXDLLIMPEXP_BASE wxFilterFSHandler : public wxFileSystemHandler
 {
 public:
     wxFilterFSHandler() : wxFileSystemHandler() { }
-    virtual ~wxFilterFSHandler() { }
+    virtual ~wxFilterFSHandler() = default;
 
     virtual bool CanOpen(const wxString& location) override;
     virtual wxFSFile* OpenFile(wxFileSystem& fs, const wxString& location) override;

include/wx/gdicmn.h

@@ -948,7 +948,7 @@ wxDEPRECATED_MSG("Use wxList directly or just a standard container")
 wxResourceCache : public wxList
 {
 public:
-    wxResourceCache() { }
+    wxResourceCache() = default;
 #if !wxUSE_STD_CONTAINERS
     wxResourceCache(unsigned int keyType) : wxList(keyType) { }
 #endif

include/wx/gdiobj.h

@@ -23,7 +23,7 @@ class WXDLLIMPEXP_CORE wxGDIRefData : public wxObjectRefData
 public:
     // Default ctor which needs to be defined just because we use
     // wxDECLARE_NO_COPY_CLASS() below.
-    wxGDIRefData() { }
+    wxGDIRefData() = default;
 
     // override this in the derived classes to check if this data object is
     // really fully initialized

include/wx/generic/choicdgg.h

@@ -163,7 +163,7 @@ private:
 class WXDLLIMPEXP_CORE wxMultiChoiceDialog : public wxAnyChoiceDialog
 {
 public:
-    wxMultiChoiceDialog() { }
+    wxMultiChoiceDialog() = default;
 
     wxMultiChoiceDialog(wxWindow *parent,
                         const wxString& message,

include/wx/generic/clrpickerg.h

@@ -24,7 +24,7 @@ class WXDLLIMPEXP_CORE wxGenericColourButton : public wxBitmapButton,
                                                public wxColourPickerWidgetBase
 {
 public:
-    wxGenericColourButton() {}
+    wxGenericColourButton() = default;
     wxGenericColourButton(wxWindow *parent,
                           wxWindowID id,
                           const wxColour& col = *wxBLACK,
@@ -37,7 +37,7 @@ public:
         Create(parent, id, col, pos, size, style, validator, name);
     }
 
-    virtual ~wxGenericColourButton() {}
+    virtual ~wxGenericColourButton() = default;
 
 
 public:     // API extensions specific for wxGenericColourButton

include/wx/generic/combo.h

@@ -132,7 +132,7 @@ public:
         (void)Create(parent, id, value, pos, size, style, validator, name);
     }
 
-    virtual ~wxComboCtrl() {}
+    virtual ~wxComboCtrl() = default;
 
 protected:
 

include/wx/generic/ctrlsub.h

@@ -19,7 +19,7 @@
 class wxControlWithItemsGeneric : public wxControlWithItemsBase
 {
 public:
-    wxControlWithItemsGeneric() { }
+    wxControlWithItemsGeneric() = default;
 
     virtual void DoInitItemClientData()
     {

include/wx/generic/custombgwin.h

@@ -20,7 +20,7 @@
 class wxCustomBackgroundWindowGenericBase : public wxCustomBackgroundWindowBase
 {
 public:
-    wxCustomBackgroundWindowGenericBase() { }
+    wxCustomBackgroundWindowGenericBase() = default;
 
 protected:
     void DoEraseBackground(wxEraseEvent& event, wxWindow* win)
@@ -58,7 +58,7 @@ class wxCustomBackgroundWindow : public W,
 public:
     typedef W BaseWindowClass;
 
-    wxCustomBackgroundWindow() { }
+    wxCustomBackgroundWindow() = default;
 
 protected:
     virtual void DoSetBackgroundBitmap(const wxBitmap& bmp) override

include/wx/generic/dataview.h

@@ -436,7 +436,7 @@ class WXDLLIMPEXP_CORE wxDataViewCtrlAccessible: public wxWindowAccessible
 {
 public:
     wxDataViewCtrlAccessible(wxDataViewCtrl* win);
-    virtual ~wxDataViewCtrlAccessible() {}
+    virtual ~wxDataViewCtrlAccessible() = default;
 
     virtual wxAccStatus HitTest(const wxPoint& pt, int* childId,
                                 wxAccessible** childObject) override;

include/wx/generic/dirctrlg.h

@@ -59,7 +59,7 @@ class WXDLLIMPEXP_CORE wxDirItemData : public wxTreeItemData
 {
 public:
     wxDirItemData(const wxString& path, const wxString& name, bool isDir);
-    virtual ~wxDirItemData(){}
+    virtual ~wxDirItemData() = default;
     void SetNewDirName(const wxString& path);
 
     bool HasSubDirs() const;
@@ -245,7 +245,7 @@ public:
 
     void Init();
 
-    virtual ~wxDirFilterListCtrl() {}
+    virtual ~wxDirFilterListCtrl() = default;
 
     //// Operations
     void FillFilterList(const wxString& filter, int defaultFilter);

include/wx/generic/filectrlg.h

@@ -205,7 +205,7 @@ public:
                style, pos, size, name );
     }
 
-    virtual ~wxGenericFileCtrl() {}
+    virtual ~wxGenericFileCtrl() = default;
 
     bool Create( wxWindow *parent,
                  wxWindowID id,

include/wx/generic/filedlgg.h

@@ -139,7 +139,7 @@ private:
 class WXDLLIMPEXP_CORE wxFileDialog: public wxGenericFileDialog
 {
 public:
-    wxFileDialog() {}
+    wxFileDialog() = default;
 
     wxFileDialog(wxWindow *parent,
                  const wxString& message = wxASCII_STR(wxFileSelectorPromptStr),

include/wx/generic/filepickerg.h

@@ -100,7 +100,7 @@ private:
 class WXDLLIMPEXP_CORE wxGenericFileButton : public wxGenericFileDirButton
 {
 public:
-    wxGenericFileButton() {}
+    wxGenericFileButton() = default;
     wxGenericFileButton(wxWindow *parent,
                         wxWindowID id,
                         const wxString& label = wxASCII_STR(wxFilePickerWidgetLabel),
@@ -168,7 +168,7 @@ private:
 class WXDLLIMPEXP_CORE wxGenericDirButton : public wxGenericFileDirButton
 {
 public:
-    wxGenericDirButton() {}
+    wxGenericDirButton() = default;
     wxGenericDirButton(wxWindow *parent,
                        wxWindowID id,
                        const wxString& label = wxASCII_STR(wxDirPickerWidgetLabel),

include/wx/generic/fontpickerg.h

@@ -21,7 +21,7 @@ class WXDLLIMPEXP_CORE wxGenericFontButton : public wxButton,
                                              public wxFontPickerWidgetBase
 {
 public:
-    wxGenericFontButton() {}
+    wxGenericFontButton() = default;
     wxGenericFontButton(wxWindow *parent,
                         wxWindowID id,
                         const wxFont &initial = wxNullFont,
@@ -40,7 +40,7 @@ public:
     virtual void SetSelectedColour(const wxColour &colour) override
         { m_data.SetColour(colour); UpdateFont(); }
 
-    virtual ~wxGenericFontButton() {}
+    virtual ~wxGenericFontButton() = default;
 
 
 public:     // API extensions specific for wxGenericFontButton

include/wx/generic/grid.h

@@ -140,7 +140,7 @@ class WXDLLIMPEXP_CORE wxGridCellWorker : public wxSharedClientDataContainer,
                                           public wxRefCounter
 {
 public:
-    wxGridCellWorker() { }
+    wxGridCellWorker() = default;
 
     wxGridCellWorker(const wxGridCellWorker& other);
 
@@ -593,7 +593,7 @@ public:
 class WXDLLIMPEXP_CORE wxGridHeaderLabelsRenderer
 {
 public:
-    virtual ~wxGridHeaderLabelsRenderer() {}
+    virtual ~wxGridHeaderLabelsRenderer() = default;
 
     // Draw the border around cell window.
     virtual void DrawBorder(const wxGrid& grid,
@@ -1464,7 +1464,7 @@ using wxUnsignedToIntHashMap = std::unordered_map<unsigned, int>;
 struct WXDLLIMPEXP_CORE wxGridSizesInfo
 {
     // default ctor, initialize m_sizeDefault and m_customSizes later
-    wxGridSizesInfo() { }
+    wxGridSizesInfo() = default;
 
     // ctor used by wxGrid::Get{Col,Row}Sizes()
     wxGridSizesInfo(int defSize, const wxArrayInt& allSizes);

include/wx/generic/grideditors.h

@@ -415,7 +415,7 @@ public:
     {
     }
 
-    virtual ~wxGridCellEnumEditor() {}
+    virtual ~wxGridCellEnumEditor() = default;
 
     virtual wxGridCellEditor* Clone() const override
         { return new wxGridCellEnumEditor(*this); }

include/wx/generic/laywin.h

@@ -207,7 +207,7 @@ class WXDLLIMPEXP_FWD_CORE wxFrame;
 class WXDLLIMPEXP_CORE wxLayoutAlgorithm: public wxObject
 {
 public:
-    wxLayoutAlgorithm() {}
+    wxLayoutAlgorithm() = default;
 
 #if wxUSE_MDI_ARCHITECTURE
     // The MDI client window is sized to whatever's left over.

include/wx/generic/listctrl.h

@@ -256,7 +256,7 @@ class WXDLLIMPEXP_CORE wxListCtrl: public wxGenericListCtrl
     wxDECLARE_DYNAMIC_CLASS(wxListCtrl);
 
 public:
-    wxListCtrl() {}
+    wxListCtrl() = default;
 
     wxListCtrl(wxWindow *parent, wxWindowID winid = wxID_ANY,
                const wxPoint& pos = wxDefaultPosition,

include/wx/generic/mask.h

@@ -17,7 +17,7 @@
 class WXDLLIMPEXP_CORE wxMask : public wxMaskBase
 {
 public:
-    wxMask() { }
+    wxMask() = default;
     wxMask(const wxBitmap& bitmap, const wxColour& colour)
     {
         InitFromColour(bitmap, colour);

include/wx/generic/mdig.h

@@ -217,7 +217,7 @@ private:
 class WXDLLIMPEXP_CORE wxGenericMDIClientWindow : public wxMDIClientWindowBase
 {
 public:
-    wxGenericMDIClientWindow() { }
+    wxGenericMDIClientWindow() = default;
 
     // unfortunately we need to provide our own version of CreateClient()
     // because of the difference in the type of the first parameter and

include/wx/generic/private/grid.h

@@ -460,7 +460,7 @@ class WXDLLIMPEXP_ADV wxGridRowOrColAttrData
 {
 public:
     // empty ctor to suppress warnings
-    wxGridRowOrColAttrData() {}
+    wxGridRowOrColAttrData() = default;
     ~wxGridRowOrColAttrData();
 
     void SetAttr(wxGridCellAttr *attr, int rowOrCol);
@@ -663,7 +663,7 @@ public:
 
     // This class is never used polymorphically but give it a virtual dtor
     // anyhow to suppress g++ complaints about it
-    virtual ~wxGridOperations() { }
+    virtual ~wxGridOperations() = default;
 };
 
 class wxGridRowOperations : public wxGridOperations
@@ -1022,7 +1022,7 @@ public:
 
     // This class is never used polymorphically but give it a virtual dtor
     // anyhow to suppress g++ complaints about it
-    virtual ~wxGridDirectionOperations() { }
+    virtual ~wxGridDirectionOperations() = default;
 
 protected:
     // Get the position of the row or column from the given coordinates pair.
@@ -1190,7 +1190,7 @@ WX_DEFINE_ARRAY_WITH_DECL_PTR(wxGridDataTypeInfo*, wxGridDataTypeInfoArray,
 class WXDLLIMPEXP_ADV wxGridTypeRegistry
 {
 public:
-    wxGridTypeRegistry() {}
+    wxGridTypeRegistry() = default;
     ~wxGridTypeRegistry();
 
     void RegisterDataType(const wxString& typeName,

include/wx/generic/private/markuptext.h

@@ -24,7 +24,7 @@ class wxMarkupParserOutput;
 class WXDLLIMPEXP_CORE wxMarkupTextBase
 {
 public:
-    virtual ~wxMarkupTextBase() {}
+    virtual ~wxMarkupTextBase() = default;
 
     // Update the markup string.
     void SetMarkup(const wxString& markup) { m_markup = markup; }

include/wx/generic/statbmpg.h

@@ -15,7 +15,7 @@
 class WXDLLIMPEXP_CORE wxGenericStaticBitmap : public wxStaticBitmapBase
 {
 public:
-    wxGenericStaticBitmap() {}
+    wxGenericStaticBitmap() = default;
     wxGenericStaticBitmap(wxWindow *parent,
                           wxWindowID id,
                           const wxBitmapBundle& bitmap,

include/wx/generic/textdlgg.h

@@ -95,7 +95,7 @@ private:
 class WXDLLIMPEXP_CORE wxPasswordEntryDialog : public wxTextEntryDialog
 {
 public:
-    wxPasswordEntryDialog() { }
+    wxPasswordEntryDialog() = default;
     wxPasswordEntryDialog(wxWindow *parent,
                       const wxString& message,
                       const wxString& caption = wxASCII_STR(wxGetPasswordFromUserPromptStr),

include/wx/generic/treectlg.h

@@ -403,7 +403,7 @@ class WXDLLIMPEXP_CORE wxTreeCtrl: public wxGenericTreeCtrl
     wxDECLARE_DYNAMIC_CLASS(wxTreeCtrl);
 
 public:
-    wxTreeCtrl() {}
+    wxTreeCtrl() = default;
 
     wxTreeCtrl(wxWindow *parent, wxWindowID id = wxID_ANY,
                const wxPoint& pos = wxDefaultPosition,

include/wx/geometry.h

@@ -741,7 +741,7 @@ inline bool wxRect2DInt::operator != (const wxRect2DInt& rect) const
 class WXDLLIMPEXP_CORE wxTransform2D
 {
 public :
-    virtual ~wxTransform2D() { }
+    virtual ~wxTransform2D() = default;
     virtual void                    Transform( wxPoint2DInt* pt )const  = 0;
     virtual void                    Transform( wxRect2DInt* r ) const;
     virtual wxPoint2DInt    Transform( const wxPoint2DInt &pt ) const;

include/wx/graphics.h

@@ -147,8 +147,8 @@ protected:
 class WXDLLIMPEXP_CORE wxGraphicsPen : public wxGraphicsObject
 {
 public:
-    wxGraphicsPen() {}
-    virtual ~wxGraphicsPen() {}
+    wxGraphicsPen() = default;
+    virtual ~wxGraphicsPen() = default;
 private:
     wxDECLARE_DYNAMIC_CLASS(wxGraphicsPen);
 };
@@ -158,8 +158,8 @@ extern WXDLLIMPEXP_DATA_CORE(wxGraphicsPen) wxNullGraphicsPen;
 class WXDLLIMPEXP_CORE wxGraphicsBrush : public wxGraphicsObject
 {
 public:
-    wxGraphicsBrush() {}
-    virtual ~wxGraphicsBrush() {}
+    wxGraphicsBrush() = default;
+    virtual ~wxGraphicsBrush() = default;
 private:
     wxDECLARE_DYNAMIC_CLASS(wxGraphicsBrush);
 };
@@ -169,8 +169,8 @@ extern WXDLLIMPEXP_DATA_CORE(wxGraphicsBrush) wxNullGraphicsBrush;
 class WXDLLIMPEXP_CORE wxGraphicsFont : public wxGraphicsObject
 {
 public:
-    wxGraphicsFont() {}
-    virtual ~wxGraphicsFont() {}
+    wxGraphicsFont() = default;
+    virtual ~wxGraphicsFont() = default;
 private:
     wxDECLARE_DYNAMIC_CLASS(wxGraphicsFont);
 };
@@ -180,8 +180,8 @@ extern WXDLLIMPEXP_DATA_CORE(wxGraphicsFont) wxNullGraphicsFont;
 class WXDLLIMPEXP_CORE wxGraphicsBitmap : public wxGraphicsObject
 {
 public:
-    wxGraphicsBitmap() {}
-    virtual ~wxGraphicsBitmap() {}
+    wxGraphicsBitmap() = default;
+    virtual ~wxGraphicsBitmap() = default;
 
     // Convert bitmap to wxImage: this is more efficient than converting to
     // wxBitmap first and then to wxImage and also works without X server
@@ -206,9 +206,9 @@ extern WXDLLIMPEXP_DATA_CORE(wxGraphicsBitmap) wxNullGraphicsBitmap;
 class WXDLLIMPEXP_CORE wxGraphicsMatrix : public wxGraphicsObject
 {
 public:
-    wxGraphicsMatrix() {}
+    wxGraphicsMatrix() = default;
 
-    virtual ~wxGraphicsMatrix() {}
+    virtual ~wxGraphicsMatrix() = default;
 
     // concatenates the matrix
     virtual void Concat( const wxGraphicsMatrix *t );
@@ -477,8 +477,8 @@ private:
 class WXDLLIMPEXP_CORE wxGraphicsPath : public wxGraphicsObject
 {
 public:
-    wxGraphicsPath()  {}
-    virtual ~wxGraphicsPath() {}
+    wxGraphicsPath()  = default;
+    virtual ~wxGraphicsPath() = default;
 
     //
     // These are the path primitives from which everything else can be constructed
@@ -992,9 +992,9 @@ private:
 class WXDLLIMPEXP_CORE wxGraphicsRenderer : public wxObject
 {
 public:
-    wxGraphicsRenderer() {}
+    wxGraphicsRenderer() = default;
 
-    virtual ~wxGraphicsRenderer() {}
+    virtual ~wxGraphicsRenderer() = default;
 
     static wxGraphicsRenderer* GetDefaultRenderer();