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  4. Array Size

Array Size

Scheduled Pinned Locked Moved C / C++ / MFC
helpc++data-structures
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  • T TeVc

    CString store[100];,

    CPalliniC Offline
    CPalliniC Offline
    CPallini
    wrote on last edited by
    #11

    The size of such array is

    int iSize = sizeof(store);

    The number of elements of such array is

    int iCount = sizeof(store)/sizeof(store[0]);

    or, more concisely, 100. :)

    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]

    In testa che avete, signor di Ceprano?

    T 1 Reply Last reply
    0
    • CPalliniC CPallini

      The size of such array is

      int iSize = sizeof(store);

      The number of elements of such array is

      int iCount = sizeof(store)/sizeof(store[0]);

      or, more concisely, 100. :)

      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]

      T Offline
      T Offline
      TeVc
      wrote on last edited by
      #12

      Thanks for reply but it's not working.

      CString store[100];
      CString File;
      and int cou=0;
      store[cou]=File.

      File name added at the run time.Plz help me

      CPalliniC 1 Reply Last reply
      0
      • T TeVc

        Thanks for reply but it's not working.

        CString store[100];
        CString File;
        and int cou=0;
        store[cou]=File.

        File name added at the run time.Plz help me

        CPalliniC Offline
        CPalliniC Offline
        CPallini
        wrote on last edited by
        #13

        What does it mean 'it's not working?' in such context? What are you trying to do? What happens instead? :)

        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]

        In testa che avete, signor di Ceprano?

        T 1 Reply Last reply
        0
        • CPalliniC CPallini

          What does it mean 'it's not working?' in such context? What are you trying to do? What happens instead? :)

          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]

          T Offline
          T Offline
          TeVc
          wrote on last edited by
          #14

          store[cou]=File;

          int iSize=sizeof(store);

          AfxMessageBox(iSize);

          Then i am geting Debug Assertion Fail Line number:163.

          CPalliniC 1 Reply Last reply
          0
          • T TeVc

            store[cou]=File;

            int iSize=sizeof(store);

            AfxMessageBox(iSize);

            Then i am geting Debug Assertion Fail Line number:163.

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

            On what line does the code assert? BTW your array is fixed-sized to 100 elements, regardless if you assign or not any of them. :)

            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]

            In testa che avete, signor di Ceprano?

            T 1 Reply Last reply
            0
            • CPalliniC CPallini

              On what line does the code assert? BTW your array is fixed-sized to 100 elements, regardless if you assign or not any of them. :)

              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]

              T Offline
              T Offline
              TeVc
              wrote on last edited by
              #16

              Thank Now it is working.Your code is good.I make a mistake.SO thanks again.Ome more question how can i use dynamic array.Plz help me

              CPalliniC 1 Reply Last reply
              0
              • T TeVc

                Thank Now it is working.Your code is good.I make a mistake.SO thanks again.Ome more question how can i use dynamic array.Plz help me

                CPalliniC Offline
                CPalliniC Offline
                CPallini
                wrote on last edited by
                #17

                If you need an array that grows dynamically then have a look at std::vector. MFC has the CArray container but it's a crap (please don't tell this to Rajesh :rolleyes: ). very basic (and naive) vector usage sample follows:

                #include <iostream>
                #include <string>
                #include <vector>

                using namespace std;
                void main()
                {

                vector < string > v;

                v.push_back(string("hi,"));
                v.push_back(string("how"));
                v.push_back(string("do you do?"));
                cout << "vector size = " << v.size() << endl;
                for (int i=0; i<v.size(); i++)
                {
                cout << v[i] << " ";
                }
                cout << endl;
                }

                :)

                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]

                In testa che avete, signor di Ceprano?

                T 1 Reply Last reply
                0
                • CPalliniC CPallini

                  If you need an array that grows dynamically then have a look at std::vector. MFC has the CArray container but it's a crap (please don't tell this to Rajesh :rolleyes: ). very basic (and naive) vector usage sample follows:

                  #include <iostream>
                  #include <string>
                  #include <vector>

                  using namespace std;
                  void main()
                  {

                  vector < string > v;

                  v.push_back(string("hi,"));
                  v.push_back(string("how"));
                  v.push_back(string("do you do?"));
                  cout << "vector size = " << v.size() << endl;
                  for (int i=0; i<v.size(); i++)
                  {
                  cout << v[i] << " ";
                  }
                  cout << endl;
                  }

                  :)

                  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]

                  T Offline
                  T Offline
                  TeVc
                  wrote on last edited by
                  #18

                  Thanks for help.Every reply boost me..

                  CPalliniC 1 Reply Last reply
                  0
                  • T TeVc

                    Thanks for help.Every reply boost me..

                    CPalliniC Offline
                    CPalliniC Offline
                    CPallini
                    wrote on last edited by
                    #19

                    :)

                    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]

                    In testa che avete, signor di Ceprano?

                    1 Reply Last reply
                    0
                    • T TeVc

                      Thanks for reply but it's not working i have a CString store[100];,CString File; and int cou=0;. And i use store[cou]=File. And i want to get Size of store[cou].Plz help me

                      M Offline
                      M Offline
                      MANISH RASTOGI
                      wrote on last edited by
                      #20

                      store[cou].GetLength()

                      1 Reply Last reply
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