[Dev-C++] Fw: C++ Program Help Please

[Linda H. <lz...@sp...>]

I'm having a trouble understanding how to do this assignment.

We are supposed to send a character constant as areference parameter to =
the function GetUserInput six times - to get Odometer Start, Odometer =
End, Hours Start, Hours End, Minutes Start and Minutes End.  The =
instructor said that I do not have to initialize (as in (//get total =
mileage) StartReading, but to just send the string.  I don't understand =
the syntax for doing this or how to use it in the output statement.

I am also confused about how to do the Average Speed function.  Since we =
are required to convert the total time of the trip into minutes, someone =
could travel a hundred miles in two hours, but then it would be 100/120 =
which doesn't make sense.  The function for turning minutes into hours =
and minutes also gets an error for using ints.  However, we don't want a =
float for this since we have to output the times in hour:minute format.

Any help would be appreciated.  The code is below.

TIA,

Linda


//AverageMiles.cpp
//This program computes the average speed
//on a trip.

#include <iostream>    //for DevC++
#include <string>
using namespace std;

void GetUserInput (char Prompt[], int &UserInput) {
   cout << Prompt << endl;
   cin >> UserInput;
   return;
}

int HoursInMinutes (int HoursTraveled) {
   return HoursTraveled * 60;
}

int AverageSpeed (int TotalMiles, int TravelTimeInMinutes) {
   return TotalMiles/TravelTimeInMinutes;
}

void MinutesToHoursAndMinutes (int TravelTimeInMinutes, int &TimeHours,
 int &TimeMinutes) {
   TravelTimeInMinutes /60 =3D TimeHours;
   TravelTimeInMinutes %60 =3D TimeMinutes;
   return;
}

int main() {

//get total mileage
   char OdometerStart[] =3D "Enter the start odometer reading: ";
   int StartReading;
   GetUserInput (OdometerStart, StartReading);
   char OdometerEnd[] =3D "Enter the end odometer reading: ";
   int EndReading;
   GetUserInput (OdometerEnd, EndReading);
   int TotalMileage =3D EndReading - StartReading;

//get start and end hours; convert hours to minutes
   char HourStart[] =3D "Enter hour of start: ";
   int StartHour;
   GetUserInput (HourStart, StartHour);
   char HourEnd[] =3D "Enter hour of stop: ";
   int EndHour;
   GetUserInput (HourEnd, EndHour);
   int TotalHoursInMinutes =3D EndHour - StartHour;
   HoursInMinutes (TotalHoursInMinutes);

//get start and end minutes
   char MinutesStart[] =3D "Enter minutes of start: ";
   int StartMinutes;
   GetUserInput (MinutesStart, StartMinutes);
   char MinutesEnd [] =3D "Enter minutes of stop: ";
   int EndMinutes;
   GetUserInput (MinutesEnd, EndMinutes);
   int TotalTripMinutes =3D EndMinutes - StartMinutes;

//get average miles
   int TotalTravelTime;
   TotalTravelTime =3D TotalHoursInMinutes + TotalTripMinutes;
   AverageSpeed (TotalMileage, TotalTravelTime);