C++0x has no semaphores? How to synchronize threads?

Question

Is it true that C++0x will come without semaphores? There are already some questions on Stack Overflow regarding the use of semaphores. I use them (posix semaphores) all the

Answer 1

in acordance with posix semaphores, I would add

class semaphore
{
    ...
    bool trywait()
    {
        boost::mutex::scoped_lock lock(mutex_);
        if(count_)
        {
            --count_;
            return true;
        }
        else
        {
            return false;
        }
    }
};

And I much prefer using a synchronisation mechanism at a convenient level of abstraction, rather than always copy pasting a stitched-together version using more basic operators.