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Switch menu help

Kris Rossman (8)
Hello, I am a new c++ student and I am trying to make a menu based program that will display math problems based on the user's input. I have gotten the menu to display as a function (as required by the teacher) but I can not get the switch statement to display anything. I am not sure if the variable menuChoice is being sent back to the main as it should be. I want to be able to enter 1 for a menu choice and, for now, just display the word "Addition". Thanks for any help!

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  // This program will show what a student recieved on a test

#include <iomanip>
#include <iostream>
#include <time.h>
#include <cstdlib>
#define over4 "\t\t\t\t"
#define down5 "\n\n\n\n\n"
#define over3 "\t\t\t"

using namespace std;

int menu();
void menuError (int);
void splash();
void welcome();
void equation();


int main ()
{
	int num1, num2, countRight, countWrong, menuChoice;
	const int ADDITION = 1, 
			  SUBTRACTION = 2, 
			  MULTI = 3, 
			  DIV = 4, 
			  MODULUS = 5, 
			  EXIT = 6;
	
	unsigned seed = time(0);
	srand(seed);
	num1 = 1 +rand() % 10;
	num2 = 1 +rand() % 10;

	
	do
	{
		
	menu ();
		
		switch (menuChoice)
		{
			case 1: cout << "Addition";
					break;
			case 2: cout << "Subtraction";
					break;
			case 3: cout << "Multiplication";
					break;	   
			case 4: cout << "Division";
					break;
			case 5: cout << "Modulus";
					break;
			case 6: cout << "Exit";
					break;		  
		}
	}while (menuChoice != EXIT);
}

int menu ()
{
	int menuChoice;

	cout << down5;
	cout << over3 << "1. Addition                       \n";
	cout << over3 << "2. Subtraction                    \n";
	cout << over3 << "3. Multiplication                 \n";
	cout << over3 << "4. Integer Division               \n";
	cout << over3 << "5. Modulus                        \n";
	cout << over3 << "6. Exit                           \n";
	cout << over3 << "   option:  ";
	cin >> menuChoice;
	return(menuChoice);
	system("CLS");
}
coder777 (8444)
Line 73 has no effect. everything after a non conditional return is not executed.

For you problem:
On line 39 you need to store the result of menu (); in the variable menuChoice in order to use it:
menuChoice = menu ();
Kris Rossman (8)
Ok thank you! I got the word addition to display. However, it displays right under the menu and a copy of the menu displays right underneath. How do I clear the screen and display the word Addition on a blank screen?
coder777 (8444)
move line 73 before line 72
Kris Rossman (8)
Thank your for all your help.
Kris Rossman (8)
I have come across another another problem working on the Addition equation. I am getting the following error:

69 39 C:\Users\krisr_000\Desktop\C++ Projects\kkr_lab10_p1.cpp [Error] invalid conversion from 'int' to 'const char*' [-fpermissive]

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/*

Programmer name:	Kris Rossman
date:				10/20/2013
assignment:			Lab 8 Part 2

description:		First menu based program                                              
	
INPUTS:
	cin - menu choice                          
OUTPUTS:
	cout - menu, user selection, counter table       
*/

#include <iostream>
#include <cstdlib>
#include <string>
#include <iomanip>
#include <time.h>
#include <fstream>
#define myDate 		"October 20th, 2013            "
#define myActivity  "Lab 8 Part 2                  "
#define line1  "   This program asks the user to select an option  "
#define line2  "   from a menu.  Later on in development, there    "
#define line3  "   will be further information.                    "
#define over2  "\t\t"
#define over3  "\t\t\t"
#define over4  "\t\t\t\t"
#define down5  "\n\n\n\n\n"
#define down8  "\n\n\n\n\n\n\n\n"
#define down10 "\n\n\n\n\n\n\n\n\n\n"
#define down12 "\n\n\n\n\n\n\n\n\n\n\n\n"                                                  


using namespace std;

int menu();
void menuError (int);
void splash();
void welcome();
void equation(string, int, int, char);
int answer();

int main ()
{
	int num1, num2, countRight, countWrong, menuChoice;
	const int ADDITION = 1, 
			  SUBTRACTION = 2, 
			  MULTI = 3, 
			  DIV = 4, 
			  MODULUS = 5, 
			  EXIT = 6;
	
	unsigned seed = time(0);
	srand(seed);
	num1 = 1 +rand() % 10;
	num2 = 1 +rand() % 10;

	
	do
	{
	system("CLS");	
	menuChoice = menu ();
	
		switch (menuChoice)
		{
			case 1: system("CLS");
					cout << down5 << over4;
					equation(num1,num2,'+',"Addition");
					cout << answer();
					system("PAUSE");
					break;
			case 2: cout << "Subtraction";
					break;
			case 3: cout << "Multiplication";
					break;	   
			case 4: cout << "Division";
					break;
			case 5: cout << "Modulus";
					break;
			case 6: cout << "Exit";
					break;		  
		}
	}while (menuChoice != EXIT);
}
void equation(int num1, int num2, char symbol, string operation)
{
	cout << down8;
	cout << over4 << operation << endl
		 << over4 << "---------" << endl;
	cout << over4 << ' ' << setw(3) << num1 << endl
	     << over4 << symbol << setw(3) << num2 << endl
	     << over4 << "----" << endl << over4;
	cin >> userAnswer;

}
int menu ()
{
	int menuChoice;

	cout << down5;
	cout << over3 << "1. Addition                       \n";
	cout << over3 << "2. Subtraction                    \n";
	cout << over3 << "3. Multiplication                 \n";
	cout << over3 << "4. Integer Division               \n";
	cout << over3 << "5. Modulus                        \n";
	cout << over3 << "6. Exit                           \n";
	cout << over3 << "   option:  ";
	cin >> menuChoice;
	return(menuChoice);

}

void splash ()
{
	system("CLS");
	cout << "\n\n\n"
		 << "\n\t\t	       _ "	 
		 << "\n\t\t              (_)          _ "
		 << "\n\t\t          _         .=.   (_) "
		 << "\n\t\t         (_)   _   //(`)_            \"By blood a king,    "
		 << "\n\t\t              //`\\/ |\\ 0`\\\\           in heart a clown.\"  "
		 << "\n\t\t              ||-.\\_|_/.-||          ~Alfred Lord Tennyson"
		 << "\n\t\t              )/ |_____| \\(    _ "
		 << "\n\t\t             0   #/\\ /\\#  0   (_) "
		 << "\n\t\t                _| o o |_ "
		 << "\n\t\t         _     ((|, ^ ,|)) "
	 	 << "\n\t\t        (_)     `||\\_/||` "
	 	 << "\n\t\t                 || _ ||      _ "
		 << "\n\t\t                 | \\_/ |     (_) "
	 	 << "\n\t\t             0.__.\\   /.__.0 "
		 << "\n\t\t              `._  `\"`  _.' "
		 << "\n\t\t       kkr       / ;  \\ \\ "
		 << "\n\t\t               0'-' )/`'-0 "
		 << "\n\t\t                   0` "
		 << "\n\n\n";

	system("PAUSE");
}	
	
void welcome()
{
	system("CLS");
	cout << "\n\n\n";	
	cout << "\n\t/--------------------------------------------------------------\\";
	cout << "\n\t|                      About This Program                      |";
	cout << "\n\t+--------------------------------------------------------------+";
	cout << "\n\t|                                                              |";
	cout << "\n\t|                                                              |";
	cout << "\n\t|             Programmer's Name: Kris Rossman                  |";
	cout << "\n\t|                          Date: "myDate                      "|";        
	cout << "\n\t|               Name of program: "myActivity                  "|";
	cout << "\n\t|                                                              |";
	cout << "\n\t|    /-------------------- Description --------------------\\   |";
	cout << "\n\t|    | "   line1                                         " |   |";
	cout << "\n\t|    | "           line2                                 " |   |";
	cout << "\n\t|    | "                         line3                   " |   |";
	cout << "\n\t|    \\-----------------------------------------------------/   |";
	cout << "\n\t|                                                              |";
	cout << "\n\t|                                                              |";
	cout << "\n\t|                                                              |";
	cout << "\n\t\\--------------------------------------------------------------/";
	cout << "\n\n\n";
	system("PAUSE");
}
coder777 (8444)
the function on line 86 does not match the prototype on line 41
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