cus_arr.cpp

  name="google_ads_frame" marginwidth="0" marginheight="0" src="http://pagead2.googlesyndication.com/pagead/ads?client=ca-pub-5572165936844014&dt=1194442938015&lmt=1194190197&format=336x280_as&output=html&correlator=1194442937843&url=file%3A%2F%2F%2FC%3A%2FDocuments%2520and%2520Settings%2Flhh1%2F%E6%A1%8C%E9%9D%A2%2FCLanguage.htm&color_bg=FFFFFF&color_text=000000&color_link=000000&color_url=FFFFFF&color_border=FFFFFF&ad_type=text&ga_vid=583001034.1194442938&ga_sid=1194442938&ga_hid=1942779085&flash=9&u_h=768&u_w=1024&u_ah=740&u_aw=1024&u_cd=32&u_tz=480&u_java=true" frameborder="0" width="336" scrolling="no" height="280" allowtransparency="allowtransparency"> #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 *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 *loc::operator new[](size_t size)
 {
 cout << "In the custom new ARRAY allocator function." << endl;
 return malloc(size);
 }

void loc::operator delete[](void *p)
 {
 cout << "Freeing the ARRAY in the custom delete function." << endl;
 free(p);
 }

void main(void)
  {
  loc *p1, *p2;
  int i;

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

  p2 = new loc[10];
  if (!p2)
   {
    cout << "Allocation error/n";
      exit(1);
   }
  p1->show();
  for(i=0; i<10; i++)
    p2[i].show();
  delete p1;
  delete [] p2;
 }