Question

need help on this! Just write the function prototype for the following finctions while also using the variables below to help write the prototype! thanks!!

WRITE FUNCTION PROTOTYPES for the following functions. The functions are described below on page 2. (Just write the prototypes) When necessary, use the variables declared below in main(). I 1.) showMenu 2.) getChoice 3.) calcResult 4.) showResult 5.) getlato 6.) showName 7.) calcSquare 8.) is Positive int main() USE THESE VARIABLES, when needed, to function prototypes (#1 - #8) double num1 1.5; double num2 2.5; char choice; double result; string firstName; string lastName; char initial; bool is Pos; Also, use the variables to answer questions NOTE: You can use the same variable in dit WWW WA

Answer 1

NOTE: This is what I've guessed for the function prototypes, if you've more information and want to change the code, do let me know In the comments section below.

Code:

#include <iostream>
#include <string>
using namespace std;

// function prototypes

// 1.) this function wil display a menu, so it return type would be void
// also it may not need any input arguments
void showMenu();

// 2.) this function gets user choice, as choice is declared as char in main
// it's return type would be char, again it doesn't need any arguments
char getChoice();

// 3.) this function calculates result, and result is declared as double in main
// so it's return type would be double, also there are two numbers declared in main
// num1 and num2 so calcResult() may perform some calculation on these
// numbers so they'll be our input arguments
double calcResult(double num1, double num2);

// 4.) this function will show the result, it requires result as input argument to show
// it and need not have a return type
void showResult(double result);

// 5.) as there are two strings in main() describing firstName and lastName
// may be this function is used to get this info (i.e name), but as a function can
// only return one value these strings would be passed as based on reference
// so the return type will be void and input arguments will be addresses to the string
void getInfo(string &firstName, string &lastName);

// 6.) this will show the name so it's input arguments will be first and last name, and
// return type will be void
void showName(string firstName, string lastName);

// 7.) as this function's name suggest it'll be used to calculate square of a number, so
// input argument will be the number and return type it's square
double calcSquare(double number);

// 8.) again this function is used to check whether a number is positive or not, so input
// will be the number to check and return type will be a boolean for yes or no
bool isPositive(double number);

int main()
{
   double num1 = 1.5;
   double num2 = 2.5;
   char choice;
   double result;
   string firstName;
   string lastName;
   char initial;
   bool isPos;

   return 0;
}

OUTPUT:

Output to show that the program has successfully compiled.