Access auto declared array

Question

auto messwerte2 = { 3.5, 7.3, 4.9, 8.3, 4.4, 5.3, 3.8, 7.5 };

Which possibilities exist to access a single value explicitly of this array-like looking structure which as I was informed is actually a std::initializer_list ?

Answer 1

Which possibilities exist to access a single value explicitly of this array?

It's not an array, but is deduced to a std::initializer_list<double> which can be accessed through an iterator or a range based loop:

#include <iostream>

auto messwerte2 = { 3.5, 7.3, 4.9, 8.3, 4.4, 5.3, 3.8, 7.5 };

int main() {

    for(auto x : messwerte2) {
        std::cout << x << std::endl;
    }
}

Live Demo

To make it an array use an explicit array declaration:

double messwerte2[] = { 3.5, 7.3, 4.9, 8.3, 4.4, 5.3, 3.8, 7.5 };