# include < iostream.h >
class test
 {
int data1;
  public:
//function using this pointer
int getdata()
{
return this >> data1;
}
//function without using this pointer
void setdata(int newval)
{
data1=newval;
}
};
void main() {
test t1;
int n;
t1.setdata(17);
n=t1.getdata();
cout << "data1 = " << n;
} 

Thus, a member function can the access of data member by using this pointer.
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