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Thread: Help with clases

  1. #1

    Thread Starter
    Member TheGuru's Avatar
    Join Date
    Dec 2001
    Posts
    57

    Help with clases

    Sup

    I don't know why classes in c++ are messing me up so much when I understand them in visual basic. I dunno, maybe its just the syntax but I have got to get this down so I can move on to windows programming lol.

    I have 2 or 3 books that deal some with classes in c++ but all of them do not answer my 2 questions.

    If you could please answer them, I would be thankful =)

    1. What is the proper way to passs strings to a class and also to return them?

    2. What would be the proper way to pass an array of strings and also to return them.

    I would guess on number 2 that you may have to send each variable in the array one by one but would like to confirm =)

    Thank You for any help
    Last edited by TheGuru; Apr 8th, 2002 at 07:48 PM.

  2. #2
    Frenzied Member
    Join Date
    Jul 1999
    Posts
    1,800
    #2.
    you can have your funciton accept the array as a reference variable...

    ex. void myArrayFunc(int &myArray[100]);

    so now myArray will be whatever it is last assigned to that should be easier than calling 1 function numerous times

  3. #3
    Zaei
    Guest
    1: The easiest way (especially for a VB programmer) is to use the string object:
    Code:
    #include <string>
    using std::string;
    
    string func()
    {
        return string("Hello");
    }
    
    int main()
    {
      string x = func();
      cout << x.c_str() << endl;
      return 0;
    }
    2: You can create an array of string objects and pass them as Steve said, or you can use a vector:
    Code:
    #include <string>
    #include <vector>
    using std::string;
    using std::vector;
    
    void func(vector<string>& strings)
    {
      for(int i = 0; i < strings.size(); ++i)
         cout << strings[i].c_str() << endl;
    }
    
    int main()
    {
      vector<string> x;
      x.push_back(string("Hello"));
      x.push_back(string("Goodbye"));
      func(x);
      return 0;
    }
    Z.

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