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Array Size

Scheduled Pinned Locked Moved C / C++ / MFC
helpc++data-structures
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  • CPalliniC CPallini

    What kind of array are you using? Could you please post array declaration? :)

    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
    #10

    CString store[100];,

    CPalliniC 1 Reply Last reply
    0
    • 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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