Functions question

[still2blue]

Hey all! I am working on my 4th C++ program and am running into a problem. I am getting error LNK2019 and LNK1120 in Visual Studio. I am trying to get my program to use 4 functions, one to get the length of a rectangle, one to get width, one to accept the width and length and calculate the area, and one to accept all three paramaters and display them.

Anyone see what I am doing wrong here? Says I have unresolved external statements. Thanks in advance for any help!

#include <iostream>
using namespace std;

void getLength(float& length);									//function prototype
void getWidth(float& width);									//function prototype
void getArea(float& length, float& width);						//function prototype
void displayData(float& length, float& width, float& area);		//function prototype

int main()
{
	//variables
	float length;	//user input for length
	float width;	//user input for width
	float area;		//value after calculation

	//Get the information from the user
	getLength(length);
	getWidth(width);
	getArea(width, length);
	displayData(width, length, area);
	
}

void getLength(float& length)
{
	//Get the length from the user
	cout << "Please enter the length of the rectangle: " << endl;
	cin >> length;
}

void getWidth(float& width)
{
	//Get the width from the user
	cout << "Please enter the width of the rectangle: " << endl;
	cin >> width;
}

void getArea(float& length, float& width, float& area)
{
	area = length * width;
}

void displayData(float& area, float& length, float& width)
{
	//Display the area
	cout << "The area of a rectangle with a length of " << length << " and a width of " << width << " is: " << area << "." << endl << endl;
	cout << "Thank you for using this program!" << endl << endl;
}

[E3h7X9L8]

in getArea function prototype and declaration of getArea in the main is missing area

[still2blue]

Oh goodness! Thank you so much. Overlook on my part.