A pointer variable can store address of other variable . Not only can a pointer store the address of a single variable, it can also store the address of cells of an array.
example
Example:-
int arr[5];
int *p;
p=arr;
Here, p is a pointer variable, and arr is an array.
When code p=arr will be excuted
p stores the address of the first elements of array in variable p;
We can write, p=arr
or
p= &arr[0] both are same.
Q) W.A.P to initialize pointer to array.
// C++ program to illustrate the concepts
// of creating 1D array of pointers
#include < iostream>
using namespace std;
// Driver Code
int main()
{
// Dynamically creating the array
// of size = 5
int* p = new int[5];
// Initialize the array p[] as
// {10, 20, 30, 40, 50}
for (int i = 0; i < 5; i++) {
p[i] = 10 * (i + 1);
}
// Print the values using pointers
cout << *p << endl;
cout << *p + 1 << endl;
cout << *(p + 1) << endl;
cout << 2 [p] << endl;
cout << p[2] << endl;
*p++;
// Pointing to next location
cout << *p;
return 0;
}
