hax said:
Akrin said:
mrchimp said:
mrchimp said:
// Simple
int iData = 12;
int* pData = NULL; // pData point to zero
pData = &iData; // pData points to iData, & is the address operator
*pData = 6; // pData still points to iData, but iData is now 6
// Array
int mArray[5] // array contains 5 elements of type int
int* pArray = &mArray[0]; // Pointer points to the first element of the array
*pArray = 5; // The first element of the array is now 5
pArray++; // Increase the pointer. It now point to the second element
*pArray = 6; // The second element is 6#include <iostream>
using namespace std;
class example_for_r3coil{
public:
char *s;
int n;
example_for_r3coil(char *a=NULL, int x=0):s(a),n(x){};
};
void main()
{
example_for_r3coil * pExample = new example_for_r3coil("-> example",5);
cout<<"(*pExample).s = '"<<pExample->s
<<"' and (*pExample).n = '"<<pExample->n
<<"'."<<endl;
} cout<<"(*pExample).s = '"<<pExample->s
<<"' and (*pExample).n = '"<<pExample->n
<<"'."<<endl;#include <iostream.h>
struct POINT
{
int X;
int Y;
}
void main()
{
POINT mPoint; // Declare a point
POINT* pPoint = NULL; // Declare a pointer to a POINT
pPoint = &mPoint; // Get the address from mPoint and copy it to pPoint
mPoint.X = 12; // mPoint.X is now 12
pPoint->Y = 17; // mPoint.Y is now 17
(*pPoint).Y = 17; // Same thing as above, other notation
cout << mPoint.X; // Prints 12 on the screen
cout << pPoint->Y; // Prints 17 on the screen
}
