Pointer Arithmetics -- Example 2 -- Data Structure and Algorithms in C

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#include<stdio.h>
 
int main() {
 
    int arr[] = {1,2,3,4,5,6,7};
    int *arrayptr = arr; // making a pointer which points to arr.
 
    printf("Value at position 3 of the array is %d\n", arr[3]);
    printf("Address of position 3 of the array is %d\n", &arr[3]);
    printf("Address of position 3 of the array is %d\n", arr + 3);
 
    printf("The value at address of position 3 of the array is %d\n", *(&arr[3])); // dereferencing
    printf("The value at address of position 3 of the array is %d\n", *(arr + 3)); // method 2
 
    printf("Address of position 0 of the array is %d\n", arrayptr);
    printf("Address of position 1 of the array is %d\n", arrayptr+1);
    printf("Value of position 0 of the array is %d\n", *arrayptr);
    printf("Value of position 1 of the array is %d\n", *arrayptr+1);
 
    // arrayptr++;  // is valid, arr++ is not.
 
    return 0;
}

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