Please help me to debug this thanks

[Pedopolio]

#include <iostream>
#include <conio.h>

using namespace std;

struct elevInfo
{
	double dimensions;
	double weight;
	int persons;
	char letterans;
};

void userchoice(char choice);
double aluminumElevator(double dimension[3]);
double steelElevator(double dimension[3]);
double glassElevator(double dimension[3]);
double capacityWeight(double elevWeight);
double conversion(double cWeight);
double person(double& conv);

int main()
{
	elevInfo choice, ans;

	cout << "\t\t _______________________________________________" << endl;
	cout << "\t\t|                                               |" << endl;
	cout << "\t\t| Welcome to PC4EBER Corp's Elevator Predictor! |" << endl;
	cout << "\t\t|   Your elevator needs attended by the best.   |" << endl;
	cout << "\t\t|_______________________________________________|" << endl;


	cout << "\n" << endl;
	do
	{	cout << "Choose the design of your elevator:" << endl;
		cout << "[A] Aluminum" << endl;
		cout << "[B] Stainless Steel" << endl;
		cout << "[C] Glass" << endl;
		do
		{	cout << "Enter letter of your choice: ";
			cin >> choice.letterans;
		}while(toupper(choice.letterans) != 'A' && toupper(choice.letterans) != 'A' && toupper(choice.letterans) != 'A');

		userchoice(choice.letterans);

		cout << "\n" << endl;
	}while(toupper(ans.letterans) == 'Y');
	
	getch();
	return 0;
}

void userchoice(char choice)
{
	elevInfo eWeight, cWeight, convtokg, numpersons, floor;
	elevInfo dimension[3];

		switch(choice)
	{	case 'A':
			cout << "Input desired dimensions of elevator:" << endl;
			do
			{	cout << "Width [MINIMUM: 54 in]: ";
				cin >> dimension[0].dimensions;
				cin.ignore();
			}while(dimension[0].dimensions < 54);
			do
			{	cout << "Length [MINIMUM: 68 in]: ";
				cin >> dimension[1].dimensions;
				cin.ignore();
			}while(dimension[1].dimensions < 68);
			do
			{	cout << "Enter the number of floors in the building: ";
				cin >> floor.weight;
				cin.ignore();
			}while(floor.weight < 2);
			do
			{	cout << "Enter the height of a floor [IDEAL: 10-12 ft]: ";
				cin >> dimension[2].dimensions;
				cin.ignore();
			}while(dimension[2].dimensions < 10);

//			eWeight.weight = aluminumElevator(dimension.dimensions);
			cWeight.weight = capacityWeight(eWeight.weight);
			convtokg.weight = conversion(cWeight.weight);
			numpersons.persons = person(convtokg.weight);

			break;

		case 'a':
		cout << "Input desired dimensions of elevator:" << endl;
			do
			{	cout << "Width [MINIMUM: 54 in]: ";
				cin >> dimension[0].dimensions;
				cin.ignore();
			}while(dimension[0].dimensions < 54);
			do
			{	cout << "Length [MINIMUM: 68 in]: ";
				cin >> dimension[1].dimensions;
				cin.ignore();
			}while(dimension[1].dimensions < 68);
			do
			{	cout << "Enter the number of floors in the building: ";
				cin >> floor.weight;
				cin.ignore();
			}while(floor.weight < 2);
			do
			{	cout << "Enter the height of a floor [IDEAL: 10-12 ft]: ";
				cin >> dimension[2].dimensions;
				cin.ignore();
			}while(dimension[2].dimensions < 10);

//			eWeight.weight = aluminumElevator(dimension.dimensions);
			cWeight.weight = capacityWeight(eWeight.weight);
			convtokg.weight = conversion(cWeight.weight);
			numpersons.persons = person(convtokg.weight);

			break;


		case 'B':
			cout << "Input desired dimensions of elevator:" << endl;
			do
			{	cout << "Width [MINIMUM: 54 in]: ";
				cin >> dimension[0].dimensions;
				cin.ignore();
			}while(dimension[0].dimensions < 54);
			do
			{	cout << "Length [MINIMUM: 68 in]: ";
				cin >> dimension[1].dimensions;
				cin.ignore();
			}while(dimension[1].dimensions < 68);
			do
			{	cout << "Enter the number of floors in the building: ";
				cin >> floor.weight;
				cin.ignore();
			}while(floor.weight < 2);
			do
			{	cout << "Enter the height of a floor [IDEAL: 10-12 ft]: ";
				cin >> dimension[2].dimensions;
				cin.ignore();
			}while(dimension[2].dimensions < 10);

//			eWeight.weight = steelElevator(dimension.dimensions);
			cWeight.weight = capacityWeight(eWeight.weight);
			convtokg.weight = conversion(cWeight.weight);
			numpersons.persons = person(convtokg.weight);

			break;

		case 'b':
			cout << "Input desired dimensions of elevator:" << endl;
			do
			{	cout << "Width [MINIMUM: 54 in]: ";
				cin >> dimension[0].dimensions;
				cin.ignore();
			}while(dimension[0].dimensions < 54);
			do
			{	cout << "Length [MINIMUM: 68 in]: ";
				cin >> dimension[1].dimensions;
				cin.ignore();
			}while(dimension[1].dimensions < 68);
			do
			{	cout << "Enter the number of floors in the building: ";
				cin >> floor.weight;
				cin.ignore();
			}while(floor.weight < 2);
			do
			{	cout << "Enter the height of a floor [IDEAL: 10-12 ft]: ";
				cin >> dimension[2].dimensions;
				cin.ignore();
			}while(dimension[2].dimensions < 10);

//			eWeight.weight = steelElevator(dimension.dimensions);
			cWeight.weight = capacityWeight(eWeight.weight);
			convtokg.weight = conversion(cWeight.weight);
			numpersons.persons = person(convtokg.weight);

			break;

		case 'C':
			cout << "Input desired dimensions of elevator:" << endl;
			do
			{	cout << "Width [MINIMUM: 54 in]: ";
				cin >> dimension[0].dimensions;
				cin.ignore();
			}while(dimension[0].dimensions < 54);
			do
			{	cout << "Length [MINIMUM: 68 in]: ";
				cin >> dimension[1].dimensions;
				cin.ignore();
			}while(dimension[1].dimensions < 68);
			do
			{	cout << "Enter the number of floors in the building: ";
				cin >> floor.weight;
				cin.ignore();
			}while(floor.weight < 2);
			do
			{	cout << "Enter the height of a floor [IDEAL: 10-12 ft]: ";
				cin >> dimension[2].dimensions;
				cin.ignore();
			}while(dimension[2].dimensions < 10);

// 			eWeight.weight = glassElevator(eWeight.weight);
			cWeight.weight = capacityWeight(eWeight.weight);
			convtokg.weight = conversion(cWeight.weight);
			numpersons.persons = person(convtokg.weight);

			break;

		case 'c':
			cout << "Input desired dimensions of elevator:" << endl;
			do
			{	cout << "Width [MINIMUM: 54 in]: ";
				cin >> dimension[0].dimensions;
				cin.ignore();
			}while(dimension[0].dimensions < 54);
			do
			{	cout << "Length [MINIMUM: 68 in]: ";
				cin >> dimension[1].dimensions;
				cin.ignore();
			}while(dimension[1].dimensions < 68);
			do
			{	cout << "Enter the number of floors in the building: ";
				cin >> floor.weight;
				cin.ignore();
			}while(floor.weight < 2);
			do
			{	cout << "Enter the height of a floor [IDEAL: 10-12 ft]: ";
				cin >> dimension[2].dimensions;
				cin.ignore();
			}while(dimension[2].dimensions < 10);

//			eWeight.weight = glassElevator(dimension.dimensions);
			cWeight.weight = capacityWeight(eWeight.weight);
			convtokg.weight = conversion(cWeight.weight);
			numpersons.persons = person(convtokg.weight);

			break;

		default: cout << " ";
	}
}

double aluminumElevator(double dimension[3])
{
	return (dimension[0]*dimension[1]*.1*0.101*2) + (dimension[0]*(dimension[3]*12)*.1*.101*2) + ((dimension[3]*12)*dimension[2]*.1*.101*2);
}

double steelElevator(double dimension[3])
{
	return (dimension[0]*dimension[1]*.1*0.101*2) + (dimension[0]*(dimension[3]*12)*.1*.101*2) + ((dimension[3]*12)*dimension[2]*.1*.101*2);
}

double glassElevator(double dimension[3])
{
	return (dimension[0]*dimension[1]*.1*0.101*2) + (dimension[0]*(dimension[3]*12)*.1*.101*2) + ((dimension[3]*12)*dimension[2]*.1*.101*2);
}

double capacityWeight(double eWeight)
{
	return eWeight/.30;
}

double conversion(double cWeight)
{
	return cWeight/2.2046;
}

double person(double conv)
{
	return conv/55;
}

HELP ME TO DEBUG THIS PLEASE THANK YOU

[Banfa]

Without any description of what this program is supposed to do and what this program actually does (or alternatively a list of compiler errors) this is a hard, verging on impossible task.

However at line 20 I suspect that

double person(double& conv);

should be

double person(double conv);

[Luuk]

if you use this:

}while(toupper(choice.letterans) != 'A' && toupper(choice.letterans) != 'A' && toupper(choice.letterans) != 'A');

than only the choice of 'a' or 'A' is possible.

and testing for 'A' or 'a' in you case-statement has no purpose...

If you correct the line i quoted (with the '[CODE]'-tags,
than you can also delete half of your case-statement.

(but i'm not a c++ programmer)