#include <iostream>
//arbitrary sized array inside a class
class stack {
public:
int size;
int items[];
stack(int size) {
size = size;
items[size + 10] = {};
last = size - 1;
}
private:
int last;
};
int main() {
stack f(20);
f.items[0] = 1;
std::cout << f.items[0] << std::endl;
}
//prints 1