Another Problem

This is a discussion on Another Problem within the C++ Programming forums, part of the General Programming Boards category; I have now added a switch statement to the program below and when I try to compile it says 'MenuChoice ...

  1. #1
    Registered User
    Join Date
    Jan 2005
    Posts
    21

    Another Problem

    I have now added a switch statement to the program below and when I try to compile it says 'MenuChoice undefined please use this function first', any ideas?

    Code:
    #include <iostream>
    
    int MenuAndMenuChoice();
    double Add();
    
    int main()
    {
        
        MenuAndMenuChoice();
        
        switch (MenuChoice)
        {
              
              case 1: Add();
              
        }
        
        std::cin.get();
        return 0;
    }
    
    int MenuAndMenuChoice()
    {
        
        int MenuChoice;
        
        std::cout << "1.Add\n";
        std::cout << "2.Subtract\n";
        std::cout << "3.Multiply\n";
        std::cout << "4.Divide\n";
        std::cout << "5.Circle Area\n";
        std::cout << "6.Circle Circumference\n";
        std::cout << "7.Exit\n\n";
    
        std::cout << "What would you like to do? ";
        std::cin >> MenuChoice;
        
        return MenuChoice;
        
    }
    
    double Add()
    {    
         
        double FirstNumber, SecondNumber, AddAnswer;
         
        std::cout << "What is the first number: ";
        std::cin >> FirstNumber;
        std::cin.ignore(80,'\n');
        
        std::cout << "What is the second number: ";
        std::cin >> SecondNumber;
        std::cin.ignore(80,'\n');
        
        AddAnswer = FirstNumber + SecondNumber;
        
        return AddAnswer;
        
    }

  2. #2
    Slave MadCow257's Avatar
    Join Date
    Jan 2005
    Posts
    735
    sure
    you could do
    Code:
    int main()
    {
        int MenuChoice;
        MenuChoice = MenuAndMenuChoice();
        switch (MenuChoice)
    or
    Code:
    int main()
    {
        switch (MenuAndMenuChoice())

  3. #3
    Registered User
    Join Date
    Jan 2005
    Posts
    21
    Never thought of that, thanks.

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