603.cpp

C++实训教程

/*
	603.cpp
	a Array class,using operator[] overload
*/
   
#include <iostream.h>
#include <stdlib.h>

class Array
{
	long * p;
    int size;
  public:
    Array(int n){	p = new long[n];  size = n;}
	 ~Array() {delete [] p;}
    long& operator [] (int i)
    {
      return p[i];
    }
};

main()
{
    const SIZE = 4;
    Array  a(SIZE);
    int i;
    for (i = 0; i < SIZE; i++)   a[i] = i*i;
    for (i = 0; i < SIZE; i++)   cout << a[i] << "  ";
	 return 0;
}
/*
0  1  4  9

*/