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Can i disable RTTI?

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  • C ChrisPanda

    Hello guys? Do you know how to disable RTTI?

    J.HilkJ Offline
    J.HilkJ Offline
    J.Hilk
    Moderators
    wrote on last edited by J.Hilk
    #2

    @ChrisPanda said in Can i disable RTTI?:

    Do you know how to disable RTTI?

    yes


    darn can't leave it at a yes, why do you want to disable it? And I assume its essential for Qt's internal classes and methods in the first case.


    Be aware of the Qt Code of Conduct, when posting : https://forum.qt.io/topic/113070/qt-code-of-conduct


    Q: What's that?
    A: It's blue light.
    Q: What does it do?
    A: It turns blue.

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    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #3

      Hi and welcome to devnet,

      Do you mean add "-fno-rtti" to the compiler flags ?

      Interested in AI ? www.idiap.ch
      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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      • C Offline
        C Offline
        ChrisPanda
        wrote on last edited by ChrisPanda
        #4

        I am using MSVC and i want to disable it to remove my classes name in compile time. I am happy that there is so many helpful members here

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        • SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by
          #5

          Are you using Qt Creator or Visual Studio directly ?

          Interested in AI ? www.idiap.ch
          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

          C 1 Reply Last reply
          0
          • SGaistS SGaist

            Are you using Qt Creator or Visual Studio directly ?

            C Offline
            C Offline
            ChrisPanda
            wrote on last edited by
            #6

            @SGaist I am using qt creator sir and i am developing qml quick application. is there any problem if i do that?

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            • SGaistS Offline
              SGaistS Offline
              SGaist
              Lifetime Qt Champion
              wrote on last edited by
              #7

              That depends on how you want to use these classes. Out of curiosity. Why do you want to disable RTTI for that application ?

              Interested in AI ? www.idiap.ch
              Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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              0
              • C Offline
                C Offline
                ChrisPanda
                wrote on last edited by
                #8

                Just for educational purpose. I just want to remove my classes name

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                • SGaistS Offline
                  SGaistS Offline
                  SGaist
                  Lifetime Qt Champion
                  wrote on last edited by
                  #9

                  Based on this page of the VS documentation, you would need to add "/GR-" to the compiler flags. But its goal is not to hide anything. It just does not generate some additional information.

                  Interested in AI ? www.idiap.ch
                  Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                  3
                  • C Offline
                    C Offline
                    ChrisPanda
                    wrote on last edited by ChrisPanda
                    #10

                    d90fb734-92e9-4264-9684-a665b37a3a08-image.png I add it like this sir but not working :'(

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                    • C Offline
                      C Offline
                      ChrisPanda
                      wrote on last edited by
                      #11

                      still i can see some RTTI

                      45f1fcc6-d0df-4af3-b100-4443a5b5b7b9-image.png

                      config:

                      29a442be-a1f3-4c27-84d8-7bda3ddfb611-image.png

                      heres the output
                      3fe3148a-48a5-41ed-aad5-4fcc8565aa80-image.png

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                      • SGaistS Offline
                        SGaistS Offline
                        SGaist
                        Lifetime Qt Champion
                        wrote on last edited by
                        #12

                        You are removing the negation of the option.

                        Interested in AI ? www.idiap.ch
                        Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                        • C Offline
                          C Offline
                          ChrisPanda
                          wrote on last edited by
                          #13

                          Sorry sir but i dont understand, can you please explain it sir?

                          JonBJ 1 Reply Last reply
                          0
                          • C ChrisPanda

                            Sorry sir but i dont understand, can you please explain it sir?

                            JonBJ Offline
                            JonBJ Offline
                            JonB
                            wrote on last edited by
                            #14

                            @ChrisPanda
                            You have added

                            QMAKE_CXXFLAGS -= /GR-
                            

                            Note that you have used -=. That removes the option. But @SGaist wants you to add that option:

                            QMAKE_CXXFLAGS += /GR-
                            

                            Note the +=!

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