Program to reverse an array using pointers

// CPP program to reverse array 
// using pointers 
#include <iostream> 
using namespace std; 
// Function to swap two memory contents 
void swap(int* a, int* b) 
{ 
    int temp = *a; 
    *a = *b; 
    *b = temp; 
} 
// Function to reverse the array through pointers 
void reverse(int array[], int array_size) 
{ 
    // pointer1 pointing at the beginning of the array 
    int *pointer1 = array, 
        // pointer2 pointing at end of the array 
        *pointer2 = array + array_size - 1; 
    while (pointer1 < pointer2) { 
        swap(pointer1, pointer2); 
        pointer1++; 
        pointer2--; 
    } 
} 
// Function to print the array 
void print(int* array, int array_size) 
{ 
    // Length pointing at end of the array 
    int *length = array + array_size, 
        // Position pointing to the beginning of the array 
        *position = array; 
    cout << "Array = "; 
    for (position = array; position < length; position++) 
        cout << *position << " "; 
} 
// Driver function 
int main() 
{ 
    // Array to hold the values 
    int array[] = { 2, 4, -6, 5, 8, -1 }; 
    cout << "Original "; 
    print(array, 6); 
    cout << "Reverse "; 
    reverse(array, 6); 
    print(array, 6); 
    return 0; 
}