error C4430: missing type specifier - int assumed

[julzhef]

Can someone tell me why I am getting this error on line:
: error C4430: missing type specifier - int assumed. Note: C++ does not support default-int

Line:
roomTotal = getRoomTotal(roomRate, currency, numNights);

#include <iostream>
#include <iomanip>
#include <stdlib.h>
#include <string>


//value-returning function prototypes
double getRoomTotal(double, char, double);
//double getFinalTotal (double, double, int, double);

//void function prototypes
//void displayInformation ()


using namespace std;

int main()

{

//declare constants
	const double KING_SUITE_RATE	= 280.00;
	const double QUEEN_SUITE_RATE	= 310.00;
	const double KING_STND_RATE		= 235.00;
	const double QUEEN_STND_RATE	= 255.00;
	const double TAX_RATE			= .15;
	const string KING_SUITE			= "King Suite";
	const string QUEEN_SUITE		= "Queen Suite";
	const string KING_STND			= "King Standard";
	const string QUEEN_STND			= "Queen Standard";
	const string CURR_AMER			= "American";
	const string CURR_PES			= "Pesos";
		
//declare variables
	char reserveYN					= ' ';
	int roomChoice					= 0;
	double roomRate					= 0.0;
	double numNights				= 0.0;
	char currency					= ' ';
	string currChoice				= "";
	char grdTransYN					= ' ';
	int daysBus						= 0;
	double tourFee					= 0.0;
	char busTourYN					= ' ';
	double roomTotal				= 0.0;
	double finalTotal				= 0.0;
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++	       

		//prompt user
		cout << "Do you want to make another reservation, Y/N? " ;
		cin >> reserveYN ;
		reserveYN = toupper(reserveYN);

		while ((reserveYN != 'Y') && (reserveYN != 'N'))
			{
			cout << "Please make a valid entry  :" ;
			cin >> reserveYN;
			reserveYN = toupper(reserveYN);
			cout << endl;
			}

			if (reserveYN == 'Y')
			{
				system("cls"); //clear screen
			
			}
			else if (reserveYN == 'N')
			{
				system("pause");
				return 0;
			} // end if-else





//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

		//Main loop
		//while (reserveYN == 'Y')
		//for (; reserveYN != 'N';)
		
	{
		
		cout << "Welcome to the Cancun Mexicana Resort! " << endl;
		cout << "You man choose a room type of the following: " << endl;
		cout << "************************************************************" << endl << endl;
		cout << "1. King Suite ($280.00) " << endl;
		cout << "2. 2 Queen Beds Suite ($310.00) " << endl;
		cout << "3. King Standard Room ($235.00) " << endl;
		cout << "4. 2 Queen Beds Standard Room ($255.00) " << endl;
		cout << "************************************************************" << endl;
		cout << "What is your choice? " ;
		cin >> roomChoice;

				
		//menu switch
		switch (roomChoice)
		{
		case 1:
			roomRate = KING_SUITE_RATE;
			break;
		case 2:
			roomRate = QUEEN_SUITE_RATE;
			break;
		case 3:
			roomRate = KING_STND_RATE;
			break;
		case 4:
			roomRate = QUEEN_STND_RATE;
			break;
	
		default:
			cout << "You have made an invalid choice...Please choose an option between 1 & 4 " << endl;
			cin >> roomChoice;
		while ((roomChoice > 4) || (roomChoice < 1));
			
		} //end switch
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

		//Number of nights
		
		cout << endl << "How many nights would you like to stay (must be greater than 0) : " ;
		cin >> numNights;
		cout << endl;
		
		
		while (numNights < 1)

		{
			cout << "Please enter a valid number greater than 0 :" ;
			cin >> numNights;
		} //end while
			cout << "You would like to stay " << numNights << " nights " << endl << endl;
		
		
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

		//Currency
			
			cout << "Please enter a currency type: A for American or P for Pesos " ;
			cin >> currency;
			currency = toupper(currency);
			cout << endl;


		while ((currency != 'A')&& (currency != 'P'))
			{
			cout << "Please make a valid entry of A or P :" ;
			cin >> currency;
			currency = toupper(currency);
			cout << endl;
			}

			if (currency == 'A')
				currChoice = CURR_AMER;
			else if (currency == 'P')
				currChoice = CURR_PES;
			cout << "You have chose " << currChoice << " currency " << endl << endl;

//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

	// Ground Transportation Question

			cout << "Do you need ground transportation (Y/N)? " ;
			cin >> grdTransYN;
			grdTransYN = toupper(grdTransYN);
			cout << endl;
			
			if (grdTransYN == 'Y')
			{
				cout << "How many days will you need transportation ? " ;
				cin >> daysBus;
				cout << endl;
				
			}
			else if(grdTransYN == 'N')
				cout << endl;

			while ((grdTransYN != 'Y') && (grdTransYN != 'N'))
			{
			cout << "Please make a valid entry  :" ;
			cin >> grdTransYN;
			grdTransYN = toupper(grdTransYN);
			cout << endl;
			}

			if (daysBus < 0)
				{
					cout << "Please chose a value greater than 0: " ;
					cin >> daysBus;
					cout << endl;
				} 
			
			cout << "You have requested transportation for " << daysBus << " days " << endl;
			cout << endl;
			

			
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++			

	//Bus Tour Question

			cout << "Do you want a bus tour (Y/N) ? " ;
			cin >> busTourYN;
			busTourYN = toupper(busTourYN);
			cout << endl;

			while ((busTourYN != 'Y') && (busTourYN != 'N'))
			{
			cout << "Please make a valid entry  :" ;
			cin >> busTourYN;
			busTourYN = toupper(busTourYN);
			cout << endl;
			} //end while

			if (busTourYN == 'Y')
			{
				tourFee = 10.00;
				cout << "Great! The tour fee is " << tourFee << endl;
			
			} 
			else if (busTourYN == 'N')
			{
				tourFee = 0.0;
				cout << "You have chose to NOT have a bus tour " << endl;
				cout << endl;
			} //end if
}
system("pause");
return 0;
}      
//end of main function 
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	//Call functions
	roomTotal = getRoomTotal(roomRate, currency, numNights);
	cout << roomTotal;

//	finalTotal = getFinalTotal(roomTotal, tax, daysBus, tourFee)


//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	//Function getRoomTotal definition
	double getRoomTotal(double rate, char curr, double nights)	
	{
		double total = 0.0;
		//calculates the price according to number of days and currency
			if (curr == 'A')
			{	
				total = (rate * nights) * 1; 
			}
			else if (curr == 'P')
			{
				total = (rate * nights) * 10.5644;
			}
			//end if
			return total;
	} //end getRoomTotal function

//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	//Function getFinalTotal definition
//	double getFinalTotal (double room, double taxCalc, int trans, double tour)
//	{
//		double finTot = 0.0;
//		//calculates the final total including the tax and extras
//		finTot = (room * taxCalc) + (trans + tour);
//			return finTot;
//	} //end getFinalTotal
		 //end main loop

[Warnis]

Line 238 and 239 are not in the scope of any function.
Try moving them into the main