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Passing Arrays Through Functions

kingpin (2)
I am writing a code for a simple calculator that will perform several decimal conversions (I am currently concerned with 1 as of right now). Essentially after the user makes the selection in the menu (switch statement) I want to have a separate function to perform the actual conversion (math) and a function that is reserved for the solution (output). I need help with passing the binaryarray created in mathoption1 to outputoption1. The code now does not compile, I have 4 errors associated with the parameters of some of the functions. Obviously, I am lost and could use some guidance. Any help/input/advice would be greatly appreciated. 

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 #include <iostream>

using namespace std;

void display();
void menu(int &option);
void outputoption1(int decimal, int binaryarray[]);
void mathoption1(int &decimal);


int main()
{
	int option;
	int binaryarray[32];

	display();
	menu(option);

	return 0;
}

void display()
{
	cout << "Industrial Engineering Decimal Conversion v 1.0\n" << endl;
	cout << "Created by: asdf adsfadf\n"
	     << "\t    adsfa adsfad\n" << endl;
	cout << "On the next screen, you will choose which operation you want to perform\n" << endl;

	system("PAUSE");
	cout << "\n" << endl;
}

void menu(int &option, int decimal, int binaryarray[])
{
   cout << "Welcome to the IE Decimal Conversion Program!\n\n"
		<< "To choose a conversion, enter a number from the menu below\n\n"
		<< "1) Decimal to Binary\n"
		<< "2) Quit the program\n" << endl;

   cin >> option;

   switch (option)
   {
   case 1:
	   mathoption1(decimal);
	   outputoption1(decimal, binaryarray[]);
	   break;
   case 2:
	   break;
   default:
	   cout << "ERROR: Please make a valid selection" << endl;
	   menu(option);
   }
}

void mathoption1(int decimal)
{
	cout << "Please input the decimal you want to convert to binary/n/n";
	cin >> decimal;

	int x = 0;
	int binaryarray[32];
	while (decimal != 0)
	{
		binaryarray[x] = decimal % 2;
		x++;
		decimal = decimal / 2;
	}

}

void outputoption1(int decimal, int binaryarray[])
{
	int x = 0;
	cout << "Your original decimal value of " << decimal << " is equivalent to the following binary value:\n";
	for (int y = x - 1; y >= 0; y--)
	{
		cout << binaryarray[y];
	}
}
ats15 (423)
Your main problem seems to be that you declare functions with certain parameters, but when you implement them you have a different set of parameters. See line 6 and line 33 for menu function, and lines 8 and 56 for mathoption1.

Also, when you call outputoption1 on line 46, binaryarray is already an array, so you should not put the square brackets on that line
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