Creating an element function!

[djmkr]

Hello all, I am facing a problem while trying to write a code for a program which is supposed to return a reference of the (i-th) element from an array of type int, if i is an existing index ofcourse. Here is the program which I have written so far, it runs fine but I am sure that it is not correct. Your help would be much appreciated! Thanks in advance

#include <iostream>

using namespace std;

int &at (int* vec, unsigned len, unsigned i);
const int LEN = 5;

int main()
{
	
	int vec[LEN] = { 0 , 1 , 2 , 3 , 4 } ;

	at(vec,LEN,1) = 1001;
	cout << at(vec, LEN, 1) << '\n';
	cout << at(vec, LEN, 5) << '\n';
	return 0;
}

int &at (int* vec, unsigned len, unsigned i)
{
	if ( i < len)
	{
		vec = &vec[i];
	}
	else
	{
		cout << "Index overflow";
		
	}
	return *vec;

}

[PanGalactic]

You are overwriting the 0th element with the result every time. That doesn't look intentional.

[ne555]

where?

[PanGalactic]

Nevermind. Line 23 threw me for a loop.