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An Uncommon representation of array elements in C++ program
An array is a linear data structure that stores elements the same data type. To access a single data element of the array, there is a standard way that is commonly used.
Syntax
array_name[index];
Example
#include <iostream>
using namespace std;
int main( ){
int arr[2] = {32,65};
printf("First Element = %d\n",arr[0]);
printf("Second Element = %d\n",arr[1]);
return 0;
}Output
First Element = 32 Second Element = 65
Now, there is another method that can provide the same output as the above.
Syntax
index[array_name];
Example
#include <iostream>
using namespace std;
int main( ){
int arr[2] = {32,65};
printf("First Element = %d\n",0[arr]);
printf("Second Element = %d\n",1[arr]);
return 0;
}Output
First Element = 32 Second Element = 65
Let’s take under consideration both the cases −
arr[0] would be *(arr + 0) pointer that points to a value.
0[arr] would be *(0 + arr) pointer that points the same as the former one does.
Both the pointers point to the same memory address.
Updated on: 24-Oct-2019
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