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CArchive::Close()

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  • K Kiran Pinjala

    Thank you capallini. But if i call fp.Close() after ar.Close() i am getting an expection.

    KIRAN PINJARLA

    P Offline
    P Offline
    prasad_som
    wrote on last edited by
    #6

    You need to call CFile::Close before CArchive::Close.

    Prasad Notifier using ATL | Operator new[],delete[][^]

    N 1 Reply Last reply
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    • P prasad_som

      You need to call CFile::Close before CArchive::Close.

      Prasad Notifier using ATL | Operator new[],delete[][^]

      N Offline
      N Offline
      Nibu babu thomas
      wrote on last edited by
      #7

      prasad_som wrote:

      You need to call CFile::Close before CArchive::Close.

      You are wrong. CArchive does not close the file object. This is the source code...

      void CArchive::Close()
      {
      ASSERT_VALID(m_pFile);

      Flush();
      m\_pFile = NULL; // --> Just detaches the file pointer that's all, but doesn't close
      

      }


      Nibu thomas A Developer Programming tips[^]  My site[^]

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      • N Nibu babu thomas

        prasad_som wrote:

        You need to call CFile::Close before CArchive::Close.

        You are wrong. CArchive does not close the file object. This is the source code...

        void CArchive::Close()
        {
        ASSERT_VALID(m_pFile);

        Flush();
        m\_pFile = NULL; // --> Just detaches the file pointer that's all, but doesn't close
        

        }


        Nibu thomas A Developer Programming tips[^]  My site[^]

        P Offline
        P Offline
        prasad_som
        wrote on last edited by
        #8

        I think you replying to my previous reply. Haven't you seen I've already modified it?

        Prasad Notifier using ATL | Operator new[],delete[][^]

        N 1 Reply Last reply
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        • K Kiran Pinjala

          Thank you capallini. But if i call fp.Close() after ar.Close() i am getting an expection.

          KIRAN PINJARLA

          CPalliniC Offline
          CPalliniC Offline
          CPallini
          wrote on last edited by
          #9

          Since the following snipped of code works fine on my system:

              CFile file;
          MyObject obj;
          file.Open("foo.txt",CFile::modeWrite|CFile::modeCreate);
          CArchive ar(&file, CArchive::store);
          obj.Serialize(ar);
          ar.Close();
          file.Close();
          

          hope that helps. :confused:

          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.

          In testa che avete, signor di Ceprano?

          K 1 Reply Last reply
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          • P prasad_som

            I think you replying to my previous reply. Haven't you seen I've already modified it?

            Prasad Notifier using ATL | Operator new[],delete[][^]

            N Offline
            N Offline
            Nibu babu thomas
            wrote on last edited by
            #10

            prasad_som wrote:

            I think you replying to my previous reply. Haven't you seen I've already modified it?

            No I didn't see but still why are you saying that CFile::Close should be called before CArchive:Close. Why what's the reason?


            Nibu thomas A Developer Programming tips[^]  My site[^]

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            • N Nibu babu thomas

              prasad_som wrote:

              I think you replying to my previous reply. Haven't you seen I've already modified it?

              No I didn't see but still why are you saying that CFile::Close should be called before CArchive:Close. Why what's the reason?


              Nibu thomas A Developer Programming tips[^]  My site[^]

              P Offline
              P Offline
              prasad_som
              wrote on last edited by
              #11

              :doh: You are right.

              Prasad Notifier using ATL | Operator new[],delete[][^]

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              • CPalliniC CPallini

                Since the following snipped of code works fine on my system:

                    CFile file;
                MyObject obj;
                file.Open("foo.txt",CFile::modeWrite|CFile::modeCreate);
                CArchive ar(&file, CArchive::store);
                obj.Serialize(ar);
                ar.Close();
                file.Close();
                

                hope that helps. :confused:

                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.

                K Offline
                K Offline
                Kiran Pinjala
                wrote on last edited by
                #12

                Yes. I was wrong. It was not this fp.Close() which was causing the exception. It was another Close(). Anyhow learned a few new things. Thank you all.

                KIRAN PINJARLA

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                • P prasad_som

                  kiran.pinjarla wrote:

                  if ar.Close() is called does it close the file pointer associcated with it(fp.Close)?

                  Yes, it does close CArchive. But not the CFile associated with it.

                  kiran.pinjarla wrote:

                  When i am calling copy or delete fn.s after these line on that file

                  What are these function ? of which class? -- modified at 3:33 Thursday 30th November, 2006 -- modified at 4:59 Thursday 30th November, 2006

                  Prasad Notifier using ATL | Operator new[],delete[][^]

                  V Offline
                  V Offline
                  Viorel
                  wrote on last edited by
                  #13

                  prasad_som wrote:

                  You need to call CFile::Close before using CArchive::Close

                  In my opinion the file must be closed after closing the archive. Otherwise it will be impossible to flush the last data kept in an internal buffer of CArchive. If the CFile and CArchive objects are created on the stack, then they will be closed automatically in right order.

                  P 1 Reply Last reply
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                  • V Viorel

                    prasad_som wrote:

                    You need to call CFile::Close before using CArchive::Close

                    In my opinion the file must be closed after closing the archive. Otherwise it will be impossible to flush the last data kept in an internal buffer of CArchive. If the CFile and CArchive objects are created on the stack, then they will be closed automatically in right order.

                    P Offline
                    P Offline
                    prasad_som
                    wrote on last edited by
                    #14

                    Viorel. wrote:

                    In my opinion the file must be closed after closing the archive

                    You are right.

                    Prasad Notifier using ATL | Operator new[],delete[][^]

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                    • T toxcct

                      dear, <pre></pre> tags are for posting code samples, not quotation, because you're breaking the page... thank you ;)


                      You don't know where to start ? ask a good friend

                      [VisualCalc 3.0][Flags Beginner's Guide]

                      CPalliniC Offline
                      CPalliniC Offline
                      CPallini
                      wrote on last edited by
                      #15

                      OK, dear... :):-D:) but what does it mean because you're breaking the page...? I cannot understand :confused:, please explain to me. :)

                      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.

                      In testa che avete, signor di Ceprano?

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