Try catch with vector [C++]

outOfRange.cpp

#include <iostream>
#include <vector>
#include <stdexcept>

#define varName(_variable_) #_variable_

using namespace std;

int main(int argc, char *argv[]) {
	
	vector<int> numbers = {1,2,3};
	
	try {
		cout << numbers.at(5) << endl;
	} catch (const out_of_range& exception) {
		cerr << "Error, index out of range. Variable: " << varName(numbers) << endl;
	}
}