void printQ(Queue<T> const & q)
{
std::cout << "Front " << q.lenF() << ": ";
lazyPrint(q.fStream());
std::cout << "Rear " << q.lenR() << ": ";
lazyPrint(q.rStream());
std::cout << std::endl;
}
Stream<int> test1()
{
Stream<int> s0;
Stream<int> s1(1, s0);
lazyPrint(s1);
Stream<int> s2(2, s1);
Stream<int> s3(3, s2);
Stream<int> s4(4, s3);
std::cout << s1.get() << std::endl;
lazyPrint(s4);
return s4;
}
void main()
{
forcePrint(testZip());
std::cout << testUnit() << std::endl;
auto s = testCat();
lazyPrint(s);
forcePrint(s);
}
Stream<int> test3()
{
auto s4 = test1();
auto rv = s4.reverse();
std::cout << "Reversed\n";
lazyPrint(rv);
forcePrint(rv);
auto cat = concat(s4, rv);
return cat;
}
Stream<int> test()
{
auto cat = test3();
Stream<int> s(10, cat);
std::cout << "Cat + 10\n";
lazyPrint(s);
forcePrint(s);
auto t2 = cat.take(5);
return t2;
}
void lazyPrint(Stream<T> const & s)
{
if (s.isEmpty())
{
std::cout << std::endl;
}
else if (s.isForced())
{
T v = s.get();
auto tail = s.pop_front();
std::cout << v << " ";
lazyPrint(tail);
}
else
{
std::cout << "?\n";
}
}
