TestFiber

auto rootFiber = new TestFiber(0);
rootFiber.call();

// foreach (immutable i; 0 .. maxFiberCount)
// {
//     // create instances of each type
//     auto derived = new TestFiber(i);
//     // Fiber composed = new Fiber(&fiberFunc, i);

//     // call both fibers once
//     derived.call();
//     // composed.call();
//     // printf("Execution returned to calling context.\n");
//     // composed.call();

//     // since each fiber has run to completion, each should have state TERM
//     assert(derived.state == Fiber.State.TERM);
//     // assert(composed.state == Fiber.State.TERM);
// }