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auto_ptr array

Scheduled Pinned Locked Moved C / C++ / MFC
c++data-structuresperformancehelptutorial
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  • G George_George

    Thanks CPallini, Do we have any ways to saving typing? regards, George

    C Offline
    C Offline
    CPallini
    wrote on last edited by
    #28

    Yes: employ someone and let he/she do the job for you. :-D

    If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
    This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke

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    • C CPallini

      Yes: employ someone and let he/she do the job for you. :-D

      If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
      This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke

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      George_George
      wrote on last edited by
      #29

      Thanks CPallini, I believe it is a limitation for initialization approach for auto_ptr array. :-) regards, George

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      • G George_George

        Thanks CPallini, I believe it is a limitation for initialization approach for auto_ptr array. :-) regards, George

        C Offline
        C Offline
        CPallini
        wrote on last edited by
        #30

        That applies to all arrays initialization. Actually I dont know if there is a smarter way to do it. :)

        If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
        This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke

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        0
        • C CPallini

          That applies to all arrays initialization. Actually I dont know if there is a smarter way to do it. :)

          If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
          This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke

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          G Offline
          George_George
          wrote on last edited by
          #31

          No CPallini, For a normal array, we can declare/initialize in the simple way, saving type work. Right?

          int array[20] = {100}; // initialize at the same time, assign all elements to 100

          regards, George

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          • G George_George

            No CPallini, For a normal array, we can declare/initialize in the simple way, saving type work. Right?

            int array[20] = {100}; // initialize at the same time, assign all elements to 100

            regards, George

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            C Offline
            CPallini
            wrote on last edited by
            #32

            No George. You are wrong. Your code

            int array[20] = {100};

            initializes only the first element of the array (please make a test). You can indeed apply the same syntax to an auto_ptr array. :)

            If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
            This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke

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            0
            • C CPallini

              No George. You are wrong. Your code

              int array[20] = {100};

              initializes only the first element of the array (please make a test). You can indeed apply the same syntax to an auto_ptr array. :)

              If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
              This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke

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              G Offline
              George_George
              wrote on last edited by
              #33

              Cool, CPallini! I have tried, you are correct! regards, George

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              • G George_George

                Hi led mike, int is just used for demo purpose. You can use user defined data types, like class Foo. How to define an array of auto_ptr and initialization at the same time? regards, George

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                led mike
                wrote on last edited by
                #34

                ankita patel has given you again the answer I gave you because it is the correct answer. Who cares how to do something that shouldn't be done. I recommend you stop wasting your time with all this deep diving into subtle mechanics of something just to find the answer. Start studying Design Patterns and learn about designing maintainable flexible software. When you run into a specific situation within a real context not an imagined one, then you take the time to go deep. Until then it's a giant waste of time trying to figure out something that you will never use. Don't you think?

                led mike

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                • G George_George

                  Hi _AnShUmAn_, It is not correct code. Because the destructor of auto_ptr will use delete other than delete[]. And it will lead to memory leak. Any ideas or comments? regards, George

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                  Stephen Hewitt
                  wrote on last edited by
                  #35

                  Use Boost's scoped_array[^].

                  Steve

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                  • L led mike

                    ankita patel has given you again the answer I gave you because it is the correct answer. Who cares how to do something that shouldn't be done. I recommend you stop wasting your time with all this deep diving into subtle mechanics of something just to find the answer. Start studying Design Patterns and learn about designing maintainable flexible software. When you run into a specific situation within a real context not an imagined one, then you take the time to go deep. Until then it's a giant waste of time trying to figure out something that you will never use. Don't you think?

                    led mike

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                    G Offline
                    George_George
                    wrote on last edited by
                    #36

                    Thanks all the same led mike! regards, George

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                    • S Stephen Hewitt

                      Use Boost's scoped_array[^].

                      Steve

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                      G Offline
                      George_George
                      wrote on last edited by
                      #37

                      Good resource, Steve! Unfortunately, in current project, I have to use MSVC, and it does not support shared_ptr. :-) regards, George

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