replaced pointer by smart pointers

training.h

@@ -5,6 +5,7 @@
 #include "hardwaresetup.h"
 #include "timemodel.h"
 #include <QMainWindow>
+#include <memory>
 #include <string>
 #include <vector>
 
@@ -16,7 +17,7 @@ class Training : public QMainWindow {
     Q_OBJECT
 
   public:
-    explicit Training(QWidget * parent, DataBase * db);
+    explicit Training(QWidget * parent, std::shared_ptr<DataBase> db);
     ~Training();
 
   private:
@@ -26,7 +27,7 @@ class Training : public QMainWindow {
 
     void closeEvent(QCloseEvent * event);
     bool started;
-    HardwareSetup * Hardware;
+    std::shared_ptr<HardwareSetup> Hardware;
     bool firstTimeShell;
     bool firstTimeDea;
     QVector<QVector<int>> VecShell;
@@ -37,7 +38,7 @@ class Training : public QMainWindow {
     bool finished;
     Counter counterShell;
     Counter counterDea;
-    DataBase * db;
+    std::shared_ptr<DataBase> db;
     long minTimeOneRound;
     int minimumTime;