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index out of range

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  • ODБOïO ODБOï

    @mrjj said in index out of range:

    rash after your mainwin is created ?

    it is almost at the same time, when i hit Run button , i can see my mainwindow + the error window appearing at the same time

    https://postimg.cc/w1251HXT

    mrjjM Offline
    mrjjM Offline
    mrjj
    Lifetime Qt Champion
    wrote on last edited by
    #8

    @LeLev
    well im asking if you hit f5 debug and have break point at the main.cpp first line.
    (in main function)
    if it goes there as else its a global var that does it.

    You can also try on the
    QList<PosItem> items;
    right click on items and ask where it being used and see if any does

    or
    items.at(x)

    ODБOïO 2 Replies Last reply
    1
    • mrjjM mrjj

      @LeLev
      well im asking if you hit f5 debug and have break point at the main.cpp first line.
      (in main function)
      if it goes there as else its a global var that does it.

      You can also try on the
      QList<PosItem> items;
      right click on items and ask where it being used and see if any does

      or
      items.at(x)

      ODБOïO Offline
      ODБOïO Offline
      ODБOï
      wrote on last edited by ODБOï
      #9

      @mrjj said in index out of range:

      well im asking if you hit f5 debug and have break point at the main.cpp first line.

      Yes i'm running in DEBUG (F5) and i have break point in first line of my main()

      @mrjj said in index out of range:

      right click on items and ask where it being used and see if any does

      or
      items.at(x)

      items is used exclusively in void preProcessFile(QString filepath) function

      mrjjM 1 Reply Last reply
      0
      • ODБOïO ODБOï

        @mrjj said in index out of range:

        well im asking if you hit f5 debug and have break point at the main.cpp first line.

        Yes i'm running in DEBUG (F5) and i have break point in first line of my main()

        @mrjj said in index out of range:

        right click on items and ask where it being used and see if any does

        or
        items.at(x)

        items is used exclusively in void preProcessFile(QString filepath) function

        mrjjM Offline
        mrjjM Offline
        mrjj
        Lifetime Qt Champion
        wrote on last edited by mrjj
        #10

        @LeLev said in index out of range:

        preProcessFile

        Then cant you set break point where you call
        preProcessFile(xx) and single step with f10 F11 into it to see what line that makes it crash ?

        ODБOïO 1 Reply Last reply
        1
        • mrjjM mrjj

          @LeLev said in index out of range:

          preProcessFile

          Then cant you set break point where you call
          preProcessFile(xx) and single step with f10 F11 into it to see what line that makes it crash ?

          ODБOïO Offline
          ODБOïO Offline
          ODБOï
          wrote on last edited by
          #11

          @mrjj said in index out of range:

          cant you

          i want to, but my app crashes as soon i hit f5 or start in debug mod btn

          https://postimg.cc/w1251HXT

          ODБOïO 1 Reply Last reply
          0
          • ODБOïO ODБOï

            @mrjj said in index out of range:

            cant you

            i want to, but my app crashes as soon i hit f5 or start in debug mod btn

            https://postimg.cc/w1251HXT

            ODБOïO Offline
            ODБOïO Offline
            ODБOï
            wrote on last edited by
            #12

            for some reason if i change my compiler from msvc to minGW i can now run in DEBUG mod !

            mrjjM JonBJ 2 Replies Last reply
            0
            • ODБOïO ODБOï

              for some reason if i change my compiler from msvc to minGW i can now run in DEBUG mod !

              mrjjM Offline
              mrjjM Offline
              mrjj
              Lifetime Qt Champion
              wrote on last edited by
              #13

              @LeLev
              Ok, could be something wrong with the visual studio install and the crash is not related to
              your code as such.

              1 Reply Last reply
              1
              • ODБOïO ODБOï

                for some reason if i change my compiler from msvc to minGW i can now run in DEBUG mod !

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

                @LeLev

                for some reason if i change my compiler from msvc to minGW i can now run in DEBUG mod !

                For whatever your Qt project is, are you saying you can & do freely switch compilers between MSVC & minGW? So you have Qt, and whatever other libraries you use, available for both and it doesn't matter to you which compiler you use? You shouldn't be switching compilers just to magically get your debugging to work right now.

                Surely, you need to decide on one compiler or the other (and being able to debug always reliably is vital) and then do all your development with that?

                ODБOïO 1 Reply Last reply
                0
                • JonBJ JonB

                  @LeLev

                  for some reason if i change my compiler from msvc to minGW i can now run in DEBUG mod !

                  For whatever your Qt project is, are you saying you can & do freely switch compilers between MSVC & minGW? So you have Qt, and whatever other libraries you use, available for both and it doesn't matter to you which compiler you use? You shouldn't be switching compilers just to magically get your debugging to work right now.

                  Surely, you need to decide on one compiler or the other (and being able to debug always reliably is vital) and then do all your development with that?

                  ODБOïO Offline
                  ODБOïO Offline
                  ODБOï
                  wrote on last edited by ODБOï
                  #15

                  @JonB said in index out of range:

                  For whatever your Qt project is, are you saying you can & do freely switch compilers between MSVC & minGW?

                  @JonB said in index out of range:

                  So you have Qt, and whatever other libraries you use, available for both and it doesn't matter to you which compiler you use?

                  yes I am my own boss and I do what I want, i can recompile my libs with needed compiler

                  @JonB said in index out of range:

                  You shouldn't be switching compilers just to magically get your debugging to work right now.

                  why not ? you have 2 'equivalent tools' one is broken, what you do ?

                  @JonB said in index out of range:

                  Surely, you need to decide on one compiler or the other (and being able to debug always reliably is vital) and then do all your development with that?

                  yes ?

                  JonBJ kshegunovK J.HilkJ 3 Replies Last reply
                  0
                  • ODБOïO ODБOï

                    @JonB said in index out of range:

                    For whatever your Qt project is, are you saying you can & do freely switch compilers between MSVC & minGW?

                    @JonB said in index out of range:

                    So you have Qt, and whatever other libraries you use, available for both and it doesn't matter to you which compiler you use?

                    yes I am my own boss and I do what I want, i can recompile my libs with needed compiler

                    @JonB said in index out of range:

                    You shouldn't be switching compilers just to magically get your debugging to work right now.

                    why not ? you have 2 'equivalent tools' one is broken, what you do ?

                    @JonB said in index out of range:

                    Surely, you need to decide on one compiler or the other (and being able to debug always reliably is vital) and then do all your development with that?

                    yes ?

                    JonBJ Online
                    JonBJ Online
                    JonB
                    wrote on last edited by
                    #16

                    @LeLev

                    why not ? you have 2 'equivalent tools' one is broken, what you do ?

                    Permanently change over to the one which is not broken, chuck the other one away, and don't look back.

                    Your call, of course.

                    1 Reply Last reply
                    1
                    • ODБOïO ODБOï

                      @JonB said in index out of range:

                      For whatever your Qt project is, are you saying you can & do freely switch compilers between MSVC & minGW?

                      @JonB said in index out of range:

                      So you have Qt, and whatever other libraries you use, available for both and it doesn't matter to you which compiler you use?

                      yes I am my own boss and I do what I want, i can recompile my libs with needed compiler

                      @JonB said in index out of range:

                      You shouldn't be switching compilers just to magically get your debugging to work right now.

                      why not ? you have 2 'equivalent tools' one is broken, what you do ?

                      @JonB said in index out of range:

                      Surely, you need to decide on one compiler or the other (and being able to debug always reliably is vital) and then do all your development with that?

                      yes ?

                      kshegunovK Offline
                      kshegunovK Offline
                      kshegunov
                      Moderators
                      wrote on last edited by
                      #17

                      @LeLev said in index out of range:

                      why not ? you have 2 'equivalent tools' one is broken, what you do ?

                      I've personally found 2 bugs in MSVC and about that many in gcc (one of which I even reported), however I'm pretty sure neither is "broken". Please provide a stack trace from the crash (and yes the error is in the user code, everything QList is inlined).

                      Read and abide by the Qt Code of Conduct

                      1 Reply Last reply
                      1
                      • ODБOïO ODБOï

                        @JonB said in index out of range:

                        For whatever your Qt project is, are you saying you can & do freely switch compilers between MSVC & minGW?

                        @JonB said in index out of range:

                        So you have Qt, and whatever other libraries you use, available for both and it doesn't matter to you which compiler you use?

                        yes I am my own boss and I do what I want, i can recompile my libs with needed compiler

                        @JonB said in index out of range:

                        You shouldn't be switching compilers just to magically get your debugging to work right now.

                        why not ? you have 2 'equivalent tools' one is broken, what you do ?

                        @JonB said in index out of range:

                        Surely, you need to decide on one compiler or the other (and being able to debug always reliably is vital) and then do all your development with that?

                        yes ?

                        J.HilkJ Offline
                        J.HilkJ Offline
                        J.Hilk
                        Moderators
                        wrote on last edited by
                        #18

                        @LeLev have you tried start and break on main option ?

                        0_1563515176092_b37715d1-3e8f-43eb-90e4-96de46beb3c2-image.png

                        F10 on Windows


                        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.

                        1 Reply Last reply
                        2
                        • mrjjM mrjj

                          @LeLev
                          well im asking if you hit f5 debug and have break point at the main.cpp first line.
                          (in main function)
                          if it goes there as else its a global var that does it.

                          You can also try on the
                          QList<PosItem> items;
                          right click on items and ask where it being used and see if any does

                          or
                          items.at(x)

                          ODБOïO Offline
                          ODБOïO Offline
                          ODБOï
                          wrote on last edited by ODБOï
                          #19

                          hi
                          @mrjj said in index out of range:

                          or
                          items.at(x)

                          sorry i said i never do this calls,but in the lib itself there is that call. Just after closing the file writePath() is called:

                          void RenderItemList::writePath(QPainter& painter, bool updatedFromFile)
                          {
                              QPainterPath path;
                              ItemToBase *item = list.at(0); // << crash here
                              item->setParams(scale, windowSize.height(), offsetx, offsety);
                          

                          erros

                          #  else
                              RaiseFailFastException(nullptr, nullptr, 0);
                          #  endif
                           qt_message_fatal(QtFatalMsg, context, message);
                          { Q_ASSERT_X(i >= 0 && i < p.size(), "QList<T>::at", "index out of range");
                          

                          i saw ind debug mod that list was empty .. i initialised it after reading the file, now everything works correctly.

                          thank you for help

                          Pl45m4P 1 Reply Last reply
                          1
                          • ODБOïO ODБOï

                            hi
                            @mrjj said in index out of range:

                            or
                            items.at(x)

                            sorry i said i never do this calls,but in the lib itself there is that call. Just after closing the file writePath() is called:

                            void RenderItemList::writePath(QPainter& painter, bool updatedFromFile)
                            {
                                QPainterPath path;
                                ItemToBase *item = list.at(0); // << crash here
                                item->setParams(scale, windowSize.height(), offsetx, offsety);
                            

                            erros

                            #  else
                                RaiseFailFastException(nullptr, nullptr, 0);
                            #  endif
                             qt_message_fatal(QtFatalMsg, context, message);
                            { Q_ASSERT_X(i >= 0 && i < p.size(), "QList<T>::at", "index out of range");
                            

                            i saw ind debug mod that list was empty .. i initialised it after reading the file, now everything works correctly.

                            thank you for help

                            Pl45m4P Offline
                            Pl45m4P Offline
                            Pl45m4
                            wrote on last edited by Pl45m4
                            #20
                            This post is deleted!
                            1 Reply Last reply
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