Pointer to an array in C programming.

Let understand from the given example:
int arr[10];
int (*ptr_to_arr)[10]; // Pointer to an array of 10 integers
ptr_to_arr = &arr; // Assigning the address of 'arr' to ' ptr_to_arr '

You can then use pointer arithmetic to access the elements of the array through the pointer.
Note : when a pointer to an array is used, we need to dereference the pointer using the `*` operator before accessing .

C program for Pointer to an array of 5 integers in C language.

#include <stdio.h>
int main()
{
int arr[10] = {11, 21, 13, 14, 51,20,40,50,90,70};
int (*ptr_to_arr)[10]; // Pointer to an array of 10 integers
ptr_to_arr = &arr; // Assigning the address of 'arr' to 'ptr'
// Accessing and display the elements of the array using the pointer
for (int i = 0; i < 10; i++)
{
printf("Element %d: %d\n", i, (*ptr_to_arr)[i]);
}
return 0;
}

In the program given above, we have declare an array `arr` of size 10 and initialized it with some values. Then, we declared a pointer ` ptr_to_arr ` to an array of 10 integers. We have assigned the address of `arr` to ` ptr_to_arr ` using the `&` operator.
Next, we used a `for` loop to access and print the elements of the array using the pointer. The `(* ptr_to_arr)[i]` syntax have been used to dereference the pointer and access the elements of the array.
When you run this program, it will output the elements of the array:
Element 0: 11
Element 1: 21
Element 2: 13
Element 3: 14
Element 4: 51
Element 5: 20
Element 6: 40
Element 7: 50
Element 8: 90
Element 9: 70
This program demonstrate how do we use a pointers to an array in C programming to an array to indirectly manipulate and access the elements of the array.

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