Added 'override' keyword to Windows and OSX-specific classes,

even though their respective compilers don't yet support detecting
errors with inconsistent override usage.


git-svn-id: svn://svn.code.sf.net/p/stella/code/trunk@3184 8b62c5a3-ac7e-4cc8-8f21-d9a121418aba

src/macosx/OSystemMACOSX.hxx

@@ -44,8 +44,8 @@ class OSystemMACOSX : public OSystem
     /**
       Returns the default paths for the snapshot directory.
     */
-    string defaultSnapSaveDir();
+    string defaultSnapSaveDir() override;
-    string defaultSnapLoadDir();
+    string defaultSnapLoadDir() override;
 
   private:
     // Following constructors and assignment operators not supported

src/macosx/SettingsMACOSX.hxx

@@ -48,13 +48,13 @@ class SettingsMACOSX : public Settings
       This method should be called to load the current settings from the 
       standard Mac preferences.
     */
-    void loadConfig();
+    void loadConfig() override;
 
     /**
       This method should be called to save the current settings to the
       standard Mac preferences.
     */
-    void saveConfig();
+    void saveConfig() override;
 
   private:
     // Following constructors and assignment operators not supported

src/unix/SerialPortUNIX.hxx

@@ -59,6 +59,13 @@ class SerialPortUNIX : public SerialPort
   private:
     // File descriptor for serial connection
     int myHandle;
+
+  private:
+    // Following constructors and assignment operators not supported
+    SerialPortUNIX(const SerialPortUNIX&) = delete;
+    SerialPortUNIX(SerialPortUNIX&&) = delete;
+    SerialPortUNIX& operator=(const SerialPortUNIX&) = delete;
+    SerialPortUNIX& operator=(SerialPortUNIX&&) = delete;
 };
 
 #endif

src/windows/FSNodeWINDOWS.hxx

@@ -59,19 +59,19 @@ class FilesystemNodeWINDOWS : public AbstractFSNode
      */
     FilesystemNodeWINDOWS(const string& path);
 
-    bool exists() const;
+    bool exists() const override;
-    const string& getName() const   { return _displayName; }
+    const string& getName() const override   { return _displayName; }
-    const string& getPath() const   { return _path; }
+    const string& getPath() const override   { return _path; }
-    string getShortPath() const;
+    string getShortPath() const override;
-    bool isDirectory() const { return _isDirectory; }
+    bool isDirectory() const override { return _isDirectory; }
-    bool isFile() const      { return _isFile;      }
+    bool isFile() const override      { return _isFile;      }
-    bool isReadable() const;
+    bool isReadable() const override;
-    bool isWritable() const;
+    bool isWritable() const override;
-    bool makeDir();
+    bool makeDir() override;
-    bool rename(const string& newfile);
+    bool rename(const string& newfile) override;
 
-    bool getChildren(AbstractFSList& list, ListMode mode, bool hidden) const;
+    bool getChildren(AbstractFSList& list, ListMode mode, bool hidden) const override;
-    AbstractFSNode* getParent() const;
+    AbstractFSNode* getParent() const override;
 
   protected:
     string _displayName;

src/windows/OSystemWINDOWS.hxx

@@ -45,8 +45,8 @@ class OSystemWINDOWS : public OSystem
     /**
       Returns the default paths for the snapshot directory.
     */
-    string defaultSnapSaveDir();
+    string defaultSnapSaveDir() override;
-    string defaultSnapLoadDir();
+    string defaultSnapLoadDir() override;
 
   private:
     // Following constructors and assignment operators not supported

src/windows/SerialPortWINDOWS.hxx

@@ -42,12 +42,12 @@ class SerialPortWINDOWS : public SerialPort
       @param device  The name of the port
       @return  False on any errors, else true
     */
-    bool openPort(const string& device);
+    bool openPort(const string& device) override;
 
     /**
       Close a previously opened serial port.
     */
-    void closePort();
+    void closePort() override;
 
     /**
       Write a byte to the serial port.
@@ -55,7 +55,7 @@ class SerialPortWINDOWS : public SerialPort
       @param data  The byte to write to the port
       @return  True if a byte was written, else false
     */
-    bool writeByte(const uInt8* data);
+    bool writeByte(const uInt8* data) override;
 
   private:
     // Handle to serial port