cus_newd.cpp

 <iframe name="google_ads_frame" marginwidth="0" marginheight="0" src="http://pagead2.googlesyndication.com/pagead/ads?client=ca-pub-5572165936844014&amp;dt=1194442938015&amp;lmt=1194190197&amp;format=336x280_as&amp;output=html&amp;correlator=1194442937843&amp;url=file%3A%2F%2F%2FC%3A%2FDocuments%2520and%2520Settings%2Flhh1%2F%E6%A1%8C%E9%9D%A2%2FCLanguage.htm&amp;color_bg=FFFFFF&amp;color_text=000000&amp;color_link=000000&amp;color_url=FFFFFF&amp;color_border=FFFFFF&amp;ad_type=text&amp;ga_vid=583001034.1194442938&amp;ga_sid=1194442938&amp;ga_hid=1942779085&amp;flash=9&amp;u_h=768&amp;u_w=1024&amp;u_ah=740&amp;u_aw=1024&amp;u_cd=32&amp;u_tz=480&amp;u_java=true" frameborder="0" width="336" scrolling="no" height="280" allowtransparency="allowtransparency"></iframe> #include <iostream.h>
#include <stdlib.h>

class loc
{
   int longitude, latitude;
  public:
    loc(void) {}                //  Used to construct temporaries
    loc (int lg, int lt)
      {
        longitude = lg;
        latitude = lt;
      }
    void show(void)
      {
      cout << longitude << " ";
      cout << latitude << endl;
      }
    void *operator new(size_t size);
    void operator delete(void *p);
 };

void *loc::operator new(size_t size)
 {
   cout << "In the custom new function." << endl;
   return malloc(size);
 }

void loc::operator delete(void *p)
 {
   cout << "In the custom delete function." << endl;
   free(p);
 }

void main(void)
  {
  loc *p1, *p2;

  p1 = new loc(10,20);
  if (!p1)
   {
     cout << "Allocation error/n";
     exit(1);
   }

  p2 = new loc(-10,-20);
  if (!p2)
   {
      cout << "Allocation error/n";
      exit(1);
   }
  p1->show();
  p2->show();
  delete p1;
  delete p2;
  exit (0);
 }