#include <iostream>

template<unsigned int SIZE> struct Supplier {
    char data[5]{ 'h', 'e', 'l', 'l', 'o' };
    uint8_t pos{ 0 };

    char next()
    {
        pos++;
        if (pos >= SIZE) {
            return -34;
        }

        return data[pos];
    }
};

int main()
{
    std::cout << "BEGIN" << std::endl;
    Supplier<5> sup{};


        while (char c = true) {
            std::cout << c;
        }

    std::cout << "END" << std::endl;
}