///////////////////////////////////////////////////////////////
//  exmp2c.cpp - pass by value                               //
//                                                           //
//  Jim Fawcett, ELE591\791, Su'99                           //
//                                                           //
//  build: cl /GX exmp2c.cpp                                 //
///////////////////////////////////////////////////////////////

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

//----< demonstrate pass by value >----------------------------

void passByValue(double d, double *pDouble) {

  cout << "\n\n  inside passByValue(...)";
  d = 2.5;
  cout << "\n  value of d is " << d;

  *pDouble = 3.5;
  cout << "\n  value pointed to by pDouble is " << *pDouble;

}

//----< test >-------------------------------------------------

void main() {

  cout << "\n  before calling passByValue(...)";
  double d = 1.5;
  cout << "\n  value of d is " << d;
  double target = 2.0;
  double *pDouble = &target;
  cout << "\n  value pointed to by pDouble is " << *pDouble;

  passByValue(d, pDouble);

  cout << "\n\n  after calling passByValue(...)";
  cout << "\n  value of d is " << d;
  cout << "\n  value pointed to by pDouble is " << *pDouble << "\n\n";

}