Update SingleApplication

3rdparty/singleapplication/singleapplication.h

@@ -48,7 +48,7 @@ class SingleApplicationPrivate;
 class SingleApplication : public QApplication {  // clazy:exclude=ctor-missing-parent-argument
   Q_OBJECT
 
-  typedef QApplication app_t;
+  using app_t = QApplication;
 
  public:
   /**
@@ -88,46 +88,45 @@ class SingleApplication : public QApplication {  // clazy:exclude=ctor-missing-p
    * operations. It does not guarantee that the SingleApplication
    * initialisation will be completed in given time, though is a good hint.
    * Usually 4*timeout would be the worst case (fail) scenario.
-   * @see See the corresponding QAPPLICATION_CLASS constructor for reference
    */
-  explicit SingleApplication(int &argc, char *argv[], bool allowSecondary = false, Options options = Mode::User, int timeout = 1000);
+  explicit SingleApplication(int &argc, char *argv[], const bool allowSecondary = false, const Options options = Mode::User, const int timeout = 1000);
   ~SingleApplication() override;
 
   /**
    * @brief Returns if the instance is the primary instance
    * @returns {bool}
    */
-  bool isPrimary();
+  bool isPrimary() const;
 
   /**
    * @brief Returns if the instance is a secondary instance
    * @returns {bool}
    */
-  bool isSecondary();
+  bool isSecondary() const;
 
   /**
    * @brief Returns a unique identifier for the current instance
    * @returns {qint32}
    */
-  quint32 instanceId();
+  quint32 instanceId() const;
 
   /**
    * @brief Returns the process ID (PID) of the primary instance
    * @returns {qint64}
    */
-  qint64 primaryPid();
+  qint64 primaryPid() const;
 
   /**
    * @brief Returns the username of the user running the primary instance
    * @returns {QString}
    */
-  QString primaryUser();
+  QString primaryUser() const;
 
   /**
    * @brief Returns the username of the current user
    * @returns {QString}
    */
-  QString currentUser();
+  QString currentUser() const;
 
   /**
    * @brief Sends a message to the primary instance. Returns true on success.