Answered: Now, modify it to do the following:…

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Question

#include <iostream>

#include <cmath>

using namespace std;

// declare functions

void display_menu();

void convert_temp();

double to_celsius(double fahrenheit);

double to_fahrenheit(double celsius);

int main() {

cout << "Convert Temperatures\n\n";

display_menu();

char again = 'y';

while (again == 'y')

{

convert_temp();

cout << "Convert another temperature? (y/n): ";

cin >> again;

cout << endl;

}

cout << "Bye!\n";

}

// define functions

void display_menu()

{

cout << "MENU\n"

<< "1. Fahrenheit to Celsius\n"

<< "2. Celsius to Fahrenheit\n\n";

}

void convert_temp()

{

int option;

cout << "Enter a menu option: ";

cin >> option;

double f = 0.0;

double c = 0.0;

switch (option)

{

case 1:

cout << "Enter degrees Fahrenheit: ";

cin >> f;

c = to_celsius(f);

c = round(c * 10) / 10; // round to one decimal place

cout << "Degrees Celsius: " << c << endl;

break;

case 2:

cout << "Enter degrees Celsius: ";

cin >> c;

f = to_fahrenheit(c);

f = round(f * 10) / 10; // round to one decimal place

cout << "Degrees Fahrenheit: " << f << endl;

break;

default:

cout << "You must enter a valid menu number.\n";

break;

}

double to_celsius(double fahrenheit)

{

double celsius = (fahrenheit - 32.0) * 5.0 / 9.0;

return celsius;

}

double to_fahrenheit(double celsius)

{

double fahrenheit = celsius * 9.0 / 5.0 + 32.0;

return fahrenheit;

}

Now, modify it to do the following:
- modify the while loop to utilize tolower() or toupper().

- Create two more functions (options #3 and #4 in your menu) by taking the to_celsius() and to_fahrenheit() functions and modifying them to use reference variables instead of normal pass by value variables. Name them:

- - to_celsius_ref()
  - to_fahrenheit_ref()
- Create another two functions (options #5 and #6 in your menu) by taking the to_celsius() and to_fahrenheit() functions and modifying them to use pointers instead of normal pass by value variables. Name them: