/******************************************************************************
  Lab Exercise #4 -- Implementation of driver function
******************************************************************************/

using namespace std;

#include <iostream>

void ConvertLength( double&, char, char );

/*-----------------------------------------------------------------------------
   Name:  main

   Purpose:  Convert measurements from the English to the metric system
   Input:    A measurement in the English system
   Output:   The equivalent measurement in the metric system
-----------------------------------------------------------------------------*/

int main()
{
  double Length;
  char English, Metric;

  cout << "\nAt the prompts, enter a measurement and its English unit,\n";
  cout << "then enter the metric unit for the conversion.\n\n";

  while (1)
  {
    cout << "Enter a measurement (ctrl-d to halt): ";
    cin >> Length;

    if (cin.eof() || cin.fail()) break;

    cout << "Enter the English unit of measure (I,F,Y,M): ";
    cin >> English;
    
    cout << "Enter the metric unit of measure (C,M,K): ";
    cin >> Metric;

    ConvertLength( Length, English, Metric );

    cout << "\nThe measurement = " << Length << " " << Metric << "\n\n";
  }
  cout << "\n\n*** program halted normally ***\n\n";
}