engless.cpp

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// engless.cpp
// overloaded '<' operator compares two Distances
#include <iostream>
using namespace std;
////////////////////////////////////////////////////////////////
class Distance                    //English Distance class
   {
   private:
      int feet;
      float inches;
   public:                        //constructor (no args)
      Distance() : feet(0), inches(0.0)                  
         {  }                     //constructor (two args)
      Distance(int ft, float in) : feet(ft), inches(in)
         {  }
      void getdist()              //get length from user
         {
         cout << "\nEnter feet: ";  cin >> feet;
         cout << "Enter inches: ";  cin >> inches;
         }
      void showdist() const       //display distance
         { cout << feet << "\'-" << inches << '\"'; }
      bool operator < (Distance) const; //compare distances
   };
//--------------------------------------------------------------
                                 //compare this distance with d2
bool Distance::operator < (Distance d2) const  //return the sum
   {
   float bf1 = feet + inches/12;
   float bf2 = d2.feet + d2.inches/12;
   return (bf1 < bf2) ? true : false;
   }
////////////////////////////////////////////////////////////////
int main()
   {
   Distance dist1;                 //define Distance dist1
   dist1.getdist();                //get dist1 from user

   Distance dist2(6, 2.5);         //define and initialize dist2
                                   //display distances
   cout << "\ndist1 = ";  dist1.showdist();
   cout << "\ndist2 = ";  dist2.showdist();

   if( dist1 < dist2 )             //overloaded '<' operator
      cout << "\ndist1 is less than dist2";
   else
      cout << "\ndist1 is greater than (or equal to) dist2";
   cout << endl;
   return 0;
   }