// Program Id: CircleCalculator.cpp Starting File

// Author:

// Date:

// Description:

// This program demonstrates using a C++ Structure called Circle.

// Using various functions, it prompts the user for a radius and

// calculates and displays the diameter, area, and circumference.

#include

#include

#include // Needed for the pow function

using namespace std;

struct Circle // Declare what a Circle structure looks like

{

double radius;

double diameter;

double area;

double circumference;

//default constructor

Circle()

{

radius = 0;

diameter = 0;

area = 0;

circumference = 0;

}

};

//Function prototypes

Circle getCircleData();

void calculateCircleData(Circle &cc);

void displayCircleData(Circle cc);

const double PI = 3.14159; //can use in main and functions

int main()

{

int cNumber = 1;

cout << "Welcome to our Circle Calculator" << endl;

cout << "--------------------------------" << endl << endl;

Circle c; // Define a Circle structure variable

cout << "Circle # " << cNumber << endl << endl; //display the circle number

c = getCircleData();

calculateCircleData(c);

displayCircleData(c);

cout << " Goodbye!" << endl;

return 0;

}

//complete the implementation of the following functions

Circle getCircleData()

{

//This function prompts the user for a Circle's radius.

//Accept only values greater than 0 for the radius.

//This function returns a Circle structure variable.

Circle cTemp; //define a local Circle variable

/***Your code goes here***/

return cTemp;

}

void calculateCircleData(Circle &cc)

{

//This function takes the Circle reference argument &cc

//and calculates the rest of the members:

//diameter, circumference, and area.

/***Your code goes here***/

}

void displayCircleData(Circle cc)

{

// This function takes the Circle argument cc and displays

// all of its members using cout. Displays the radius, area, and

// circumference, all with 2 decimal places.

/***Your code goes here***/

}

/* Your code must generate the following output.

Welcome to our Circle Calculator

--------------------------------

Circle # 1

Enter the radius of the circle (number greater than 0): 3

The circle data is

Radius: 3.00

Diameter: 6.00

Circumference: 18.85

Area: 28.27

Do you want to try again? (Y or N) y

Circle # 2

Enter the radius of the circle (number greater than 0): 0

Radius must be a number greater than 0. Please re-enter radius: 4.5

The circle data is

Radius: 4.50

Diameter: 9.00

Circumference: 28.27

Area: 63.62

Do you want to try again? (Y or N) y

Circle # 3

Enter the radius of the circle (number greater than 0): -2

Radius must be a number greater than 0. Please re-enter radius: 32

The circle data is

Radius: 32.00

Diameter: 64.00

Circumference: 201.06

Area: 3216.99

Do you want to try again? (Y or N) n

Goodbye!

Press any key to continue . . .

*/

*******************************************************************************************

Complete the implementation of the following functions. There are stubs in the starting file.

1. Prototype: Circle getCircleData(); This function prompts for a radius only. Accept only values greater than 0. It returns a Circle structure variable.

2. Prototype: void calculateCircleData(Circle &cc); This function takes the Circle reference argument and calculates the rest of the attributes; diameter, circumference, and area.

3. Prototype: void displayCircleData(Circle cc); This function takes the Circle argument and displays all of the attributes. Displays the radius, diameter, area and circumference, all with 2 decimal places. Output formatting and layout must resemble the example output.

[3] Add a loop to allow users to get as many circles as wanted until the user indicates otherwise