adding to a set

This is a discussion on adding to a set within the C++ Programming forums, part of the General Programming Boards category; I am having trouble with adding ints form a file to a set container. Could someone provide a short example ...

  1. #1
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    adding to a set

    I am having trouble with adding ints form a file to a set container. Could someone provide a short example or point me to a tutorial somewhere. I searched all over google and could not find anything helpful.

    Thanks

  2. #2
    Just Lurking Dave_Sinkula's Avatar
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    How about posting the code you are having issues with?
    That helps avoid playing 20 questions.
    7. It is easier to write an incorrect program than understand a correct one.
    40. There are two ways to write error-free programs; only the third one works.*

  3. #3
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    Here is what I have so far
    Code:
    #include <iostream>
    #include <stdlib.h>
    #include <vector>
    #include <fstream>
    #include <string>
    #include <set>
    
    using namespace std;
    
    class Numbers 
    {
          public:
                void add ( int x_p ) ;  // add item to set
                Set () ;     // creates empty set
            private:		
                vector <int>  intigers ;
    };
    
    
    int main()
    {
    
         Numbers num;
    
          ifstream in_data;
          in_data.open ("D:\\numbers.txt");
          if ( ! in_data)
          {
            cout << "File not opened" << endl;
            exit (1);
          }
    
          cout << "How many ints do you want to add ?" << endl;
          int z;
          cin >> z;
          for (int i = 0 ; i < z ; i++)
          {
            cout << "Enter an int" << endl;
            int x ;
            cin >> x;
            num.add (x) ;  
    
          }
    
    
          system("PAUSE");
          return 0;
    }
    
    
    void Numbers::add (int x_p)
    {
    
    }

  4. #4
    Just Lurking Dave_Sinkula's Avatar
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    My first issue is a typo:
    Code:
                Set () ;     // creates empty set
    The language is case-sensitive; got something that compiles for me?
    7. It is easier to write an incorrect program than understand a correct one.
    40. There are two ways to write error-free programs; only the third one works.*

  5. #5
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    Your class has a vector, but you said you want a set. Just change vector to set. Then, use the insert function from the set class.

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