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50 
51 //! [0]
52 
53 class MyException : public QException
54 {
55 public:
raise() const56     void raise() const override { throw *this; }
clone() const57     MyException *clone() const override { return new MyException(*this); }
58 };
59 
60 //! [0]
61 
62 
63 //! [1]
64 
65 try  {
66     QtConcurrent::blockingMap(list, throwFunction); // throwFunction throws MyException
67 } catch (MyException &e) {
68     // handle exception
69 }
70 
71 //! [1]
72 
73 
74 //! [2]
75 
raise() const76 void MyException::raise() const { throw *this; }
77 
78 //! [2]
79 
80 
81 //! [3]
82 
clone() const83 MyException *MyException::clone() const { return new MyException(*this); }
84 
85 //! [3]
86