JReference.cc

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#include <iostream>
#include <iomanip>

#include "JLang/JPointer.hh"
#include "JLang/JReference.hh"

#include "Jeep/JParser.hh"
#include "Jeep/JMessage.hh"


/**
 * \file
 *
 * Example program to test JLANG::JReference class.
 * \author mdejong
 */
int main(int argc, char **argv)
{
  using namespace std;

  int         debug;

  try {

    JParser<> zap("Example program to test referencing of objects.");

    zap['d'] = make_field(debug)   = 3;

    zap(argc, argv);
  }
  catch(const exception &error) {
    FATAL(error.what() << endl);
  }


  using namespace JPP;

  cout << "JPointer  <int>        p(new int());" << endl;
  
  JPointer  <int>        p(new int());

  cout << "JReference<int* const> o(p);"         << endl;
  
  JReference<int* const> o(p);

  cout << "*p = 123;"                            << endl;
  
  *p = 123;

  cout << setw(3) << left  << "*o" << " == " << setw(3) << left  << "*p" << "?" << endl;
  cout << setw(3) << right <<  *o  << " == " << setw(3) << right <<  *p         << endl;
}