#include <iostream.h>
#include "setup.h"

double mpg(double m, double g)//formal parameter list
{
        double miles_per_gallon=0;	//initializing a variable

	miles_per_gallon=m/g;
	return miles_per_gallon;

}

void main()
{
	double miles, gallons, miles_per_gallon;

	cout<<"\nPlease enter miles traveled: ";
	cin>>miles;
	cout<<"\nPlease enter gallons consumed: ";
	cin>>gallons;

	setup(2);//set the precision for doubles

	//arguments, actual parameters
	miles_per_gallon=mpg(miles,gallons);//calculate miles per gallon
	cout<<"\nYour vehicle is getting: "	
	<<miles_per_gallon
	<<" miles per gallon."<<endl;

}