c was made to write OS

Hex

Binary

Hex

Binary

0

0000

8

1000

1

0001

9

1001

2

0010

A

1010

3

0011

B

1011

4

0100

C

1100

5

0101

D

1101

6

0110

E

1110

7

0111

F

1111
lass linked_list {
    public:
        class linked_list_element { 
            public:
                int    data;             // Data in this element
            private:
                // Pointer to next element
                linked_list_element *next_ptr;
             friend class linked_list;
        };
 
    public:
        linked_list_element *first_ptr;   // First element in the list

        // Initialize the linked list
        linked_list(  ) {first_ptr = NULL;}

        // ... Other member functions
};

infinite array
#include <string.h>

// number of elements to store in each cell of the infinite array 
const unsigned int BLOCK_SIZE = 10;
        
class infinite_array {
    private:
        // the data for this block 
        int   data[BLOCK_SIZE];       

        // pointer to the next array 
        class infinite_array *next;
    public:
        // Default constructor
        infinite_array(  ) 
        { 
            next = NULL;
            memset(data, '\0', sizeof(data));
        }

        // Default destructor
        ~infinite_array(  );

        // Return a reference to an element of the array
        int& operator[] (const unsigned int index);
};

Goodness and evil never share the same road, just as ice and charcoal never share the same container.

ÑChinese proverb