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hlp its urgent

Scheduled Pinned Locked Moved C / C++ / MFC
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  • D DX Roster

    Question: In Polymorphism we give same name to function (function overloading).. so each function takes same memory or different?? If Yes than How and If no then why?? Please reply me as earlier as possible

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    K Offline
    KingsGambit
    wrote on last edited by
    #11

    Static/compile time polymorphism has another form also, which is extensively used by ATL classes. http://en.wikipedia.org/wiki/Curiously_recurring_template_pattern[^]

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    • K KingsGambit

      Static/compile time polymorphism has another form also, which is extensively used by ATL classes. http://en.wikipedia.org/wiki/Curiously_recurring_template_pattern[^]

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      C Offline
      CPallini
      wrote on last edited by
      #12

      Yes, that's one of the reasons you never need a code obfuscator for ATL sources...

      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
      [My articles]

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      • C CPallini

        Yes, that's one of the reasons you never need a code obfuscator for ATL sources...

        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
        [My articles]

        K Offline
        K Offline
        KingsGambit
        wrote on last edited by
        #13

        Nice joke :)

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        • _ _Superman_

          There you have it. :) Let's leave it to him to choose what he wants.

          «_Superman_» I love work. It gives me something to do between weekends.
          Microsoft MVP (Visual C++)

          D Offline
          D Offline
          DX Roster
          wrote on last edited by
          #14

          sir i want to know that if i write two function with same name(Polymorphism function overloading) then both function will take same memory or different.. if both will take same memory then how???

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          • D DX Roster

            sir i want to know that if i write two function with same name(Polymorphism function overloading) then both function will take same memory or different.. if both will take same memory then how???

            _ Offline
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            _Superman_
            wrote on last edited by
            #15

            They will actually become 2 different functions with different names. The change in names is done by the compiler and this is called name mangling.

            «_Superman_» I love work. It gives me something to do between weekends.
            Microsoft MVP (Visual C++)

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            • _ _Superman_

              They will actually become 2 different functions with different names. The change in names is done by the compiler and this is called name mangling.

              «_Superman_» I love work. It gives me something to do between weekends.
              Microsoft MVP (Visual C++)

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              D Offline
              DX Roster
              wrote on last edited by
              #16

              sir so both function will take different memory.... is it correct then how??? plz

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              • D DX Roster

                sir i want to know that if i write two function with same name(Polymorphism function overloading) then both function will take same memory or different.. if both will take same memory then how???

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                C Offline
                Cedric Moonen
                wrote on last edited by
                #17

                DX Roster wrote:

                Polymorphism function overloading

                Did you follow our discution ? If yes, do you understand the difference between function overloading (two functions with the same name but different arguments) and function overriding (a function which is redefined in a child class) ? So please, indicates which is the exact case you are interested in, because these are two completely different cases.

                Cédric Moonen Software developer
                Charting control [v3.0] OpenGL game tutorial in C++

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                • _ _Superman_

                  They will actually become 2 different functions with different names. The change in names is done by the compiler and this is called name mangling.

                  «_Superman_» I love work. It gives me something to do between weekends.
                  Microsoft MVP (Visual C++)

                  C Offline
                  C Offline
                  Cedric Moonen
                  wrote on last edited by
                  #18

                  In case of overloading yes. It still isn't clear (at least for me) if he really meant overloading (he didn't answer the question, just put the words in a different order ;P ).

                  Cédric Moonen Software developer
                  Charting control [v3.0] OpenGL game tutorial in C++

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                  • D DX Roster

                    sir so both function will take different memory.... is it correct then how??? plz

                    C Offline
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                    Cedric Moonen
                    wrote on last edited by
                    #19

                    Anyway, if you meant overloading or overriding, both functions will start at different memory addresses (two different functions cannot start at the same memory address, it doesn't make sense).

                    Cédric Moonen Software developer
                    Charting control [v3.0] OpenGL game tutorial in C++

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                    • K KingsGambit

                      Nice joke :)

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                      T Offline
                      Tim Craig
                      wrote on last edited by
                      #20

                      It was? :~ :laugh:

                      You measure democracy by the freedom it gives its dissidents, not the freedom it gives its assimilated conformists.

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                      • C CPallini

                        When you overload a function, basically you're giving the same name to two different functions (the compiler produces two functions with two different names in the object file) hence two different portions of code memory are, of course, used. :)

                        DX Roster wrote:

                        Please reply me as earlier as possible

                        :-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
                        [My articles]

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                        Paresh Chitte
                        wrote on last edited by
                        #21

                        This is known as Name Mangling[^]. Regards, Paresh.

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                        • P Paresh Chitte

                          This is known as Name Mangling[^]. Regards, Paresh.

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                          CPallini
                          wrote on last edited by
                          #22

                          Yes, I know that. :)

                          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
                          [My articles]

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