Thread: Function Help

You function stuff is wrong. Move it outside of main and make them void.

Code:

#include <iostream>

using namespace std;


void mMenu();
void playgame();
void about();

int main()
{
	mMenu();
	cin.get();
	cin.ignore();
	return 0;	
}
void mMenu()
{    
	int selection;
	//system("CLS");
	cout << "1. Play Game" << endl;
	cout << "2. About Game" << endl;
	cout << "3. Exit" << endl;
	cin >> selection;
	switch (selection)
	{
	case 1:
		//system("CLS");
		//system("PAUSE");
		playgame();
		break;
	case 2:
		//system("CLS");
		//system("PAUSE");
		about();
		break;
	case 3:
		return;
		break;
	default:
		//system("CLS");
		cout << "INCORRECT" << endl;
		//system("PAUSE");
		return;
		break;
	}
}
void playgame()
{
	//system("CLS");  
	cout << "This is the game" << endl;
}
void about()
{
	//system("CLS");
	cout << "This is what the game is about" << endl;
}

Originally Posted by Sentral

It works now. But I don't understand void. Could someone explain why my code didn't work before.Thanks!!!

void did not make the difference in it working or not working. The problem was you had your functions in main you can not define a function inside a function.

Function header,
Example :
return_type name_of_function(parameter list)

Code:

int playgame();

This has the return type of int

Code:

int playgame()
{
	//system("CLS");  
	cout << "This is the game" << endl;
return 0;
}

That returns zero.
You would want to return something if you are going to assign it to something.

Code:

int var1 = playgame();

Code:

void playgame();

This has the return type of void

Code:

void playgame()
{
	//system("CLS");  
	cout << "This is the game" << endl;
}

Take a look at this link,
http://www.fredosaurus.com/notes-cpp/

Look for "Control Flow" and to the right you will see "Functions" it will explain some more.