Overload new and delete operator using dynamic memory allocation



#include<iostream.h>
#include<conio.h>
const int ARRAY_SIZE=10;
class vector
{
private:
int *array;
public:
void *operator new(size_t size)
{
vector *my_vector;
my_vector=::new vector;
my_vector->array=new int[ARRAY_SIZE];
return my_vector;
}
void operator delete(void* vec)
{
vector *my_vect;
my_vect=(vector *) vec;
delete (int *) my_vect->array;
::delete vec;
}
void read();
int sum();
};
void vector::read()
{
for(int i=0;i<ARRAY_SIZE;i++)
{
cout<<"vector["<<i<<"]=";
cin>>array[i];
}
}
int vector::sum()
{
int sum=0;
for(int i=0;i<ARRAY_SIZE;i++)
sum+=array[i];
return sum;
}
void main()
{
clrscr();
vector *my_vector=new vector;
cout<<"enter vector data.."<<endl;
my_vector->read();
cout<<"sum of vector="<<my_vector->sum();
delete my_vector;
getch();
}