A class designer’s stupid mistake

#ifndef __BADCLASS_H__

#define __BADCLASS_H__

class bad

{

public:

bad();

virtual ~bad();

protected:

int * pointer;

};

#endif /* __BADCLASS_H__ */

#include "badclass.h"

bad::bad()

{

pointer = new int[1024]; // 4kb memory

}

bad::~bad() {} // we don't clean up

#include "badclass.h"

#include <iostream.h>

int main()

{

bad *b;

int i = 0;

// we leak 1000 * 4kb memory.

while ( i++ < 1000)

{

b = new bad();

cout << i << endl;

delete b;

}

Not so much we can do here -- since we usually get the object libraries only, we have no way of telling that the class programmer made the mistake.