Rejestr przesuwny

#include "queue"
#include "iostream"
struct shiftRegister {
	std::queue<bool> registers;
	shiftRegister() {
		registers.push(false);
		registers.push(false);
		registers.push(false);
		registers.push(false);
	}
	void add(bool value) {
		registers.pop();
		registers.push(value);
	}
};

void printQueue(std::queue<bool> q)
{
	while (!q.empty())
	{
		std::cout << "Registry value: " << q.front() << std::endl;
		q.pop();
	}
	std::cout << std::endl;
}

int main()
{
	shiftRegister shiftReg;
	bool bit;
	while (true) {
		std::cout << "Add new registry value: ";
		std::cin >> bit;
		shiftReg.add(bit);
		std::cout << std::endl;
		printQueue(shiftReg.registers);
	}
    return 0;
}