Rewrite using functions.

This is a discussion on Rewrite using functions. within the C++ Programming forums, part of the General Programming Boards category; Rewrite the following program using two functions, one for input and one for output. Use the function declarations given. Code: ...

  1. #1
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    Rewrite using functions.

    Rewrite the following program using two functions, one for input and one for output. Use the function declarations given.

    Code:
    #include <iostream>
    
    using namespace std;
    
    string input ();
    void output ( string value );
    
    int main ()
    {
        string name;
    
        cout << "Enter your name\n";
    
        cin >> name;
    
        cout << "Hello " << name << endl;
    
        system ("PAUSE");
        return 0;
    }

  2. #2
    MFC killed my cat! manutd's Avatar
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    I did your first one. We won't do all your homework. Take the initiative and read your book/tutorials. We aren't here to do everything.
    Silence is better than unmeaning words.
    - Pythagoras
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  3. #3
    Registered User Tonto's Avatar
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    Then why are you here?

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    codez http://code.google.com/p/zxcvbn/

  4. #4
    MFC killed my cat! manutd's Avatar
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    To help those who show effort. I already did one of these for him, I'm not doing all his homework. In other words, I already helped him. This is just a plea for help without any effort shown.
    EDIT: In the other one you included string and didn't use it, but in this one you use string but don't include string. If you had compiled this you would understand this.
    Silence is better than unmeaning words.
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  5. #5
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    Well if you could help that'd be awesome. I've been going around this problem for a bit now..I just don't know how to use the declarations that are setup. You dont have to tell me the exact code, just tell me what to do. I just want to know how to work with the declarations that are given..I don't know if that made much sense.

  6. #6
    MFC killed my cat! manutd's Avatar
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    It did, and I'm fine with helping you. You want to have input cout the message and get the variable, returning the cin'ed messaged into a string. For output you want to cout "Hello" and then the function argument. Hope that helped!
    EDIT: Add this line at the top:
    Code:
    #include <string>
    Also, sorry about being mad. I guess you're different from the other newbie whiners that seem to frequent these forums.
    Silence is better than unmeaning words.
    - Pythagoras
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  7. #7
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    So I tried something like this but it didn't work. We just started learning funcitons so I'm not 100% with them.

    But heres the sh**ty code I came up with:
    Code:
    #include <iostream>
    
    using namespace std;
    
    string input ();
    void output ( string value );
    
    int main ()
    {
        string input()
        {
        string name;
    
        cout << "Enter your name\n";
    
        cin >> name;
        }
        system ("PAUSE");
        return 0;
    }
    
    void output(){
    cout << "Hello " << name << endl;
    }
    I don't want you guys to do the problem for me because I wont learn jack. Just try and explain like you did above.

  8. #8
    MFC killed my cat! manutd's Avatar
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    #include <string> under iostream. At the end put string value in the parentheses, as your function declarations don't match. Then cout value. Actually, you'll probably learn more if I show you how to do this:
    Code:
    #include <iostream>
    #include <string>          //Need this for string
    
    using namespace std;
    
    string input ();
    void output (string value);
    
    int main ()
    {
        string thename = input();
        output(thename);              //Need this to get name. Notice the placement of input.
        system ("PAUSE");
        return 0;
    }
    
    string input()          //Move outside main
    {
        string name;
        cout << "Enter your name" << endl;
        cin >> name;
        return name;
    }
    
    void output(string value)          //Get the value in a parameter.
    {
        cout << "Hello " << value << endl;
    }
    Now look over this and try to understand the changes I made. You'll learn more this way. Good luck
    Last edited by manutd; 11-15-2006 at 08:09 PM.
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    - Pythagoras
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