7.cpp

// taken from http://isocpp.org/files/papers/N3858.pdf

future<int> f(stream str) resumable
{
    shared_ptr<vector<char>> buf = ...;
    int count = await str.read(512, buf);
    return count + 11;
}

future<void> g() resumable
{
    stream s = ...;
    int pls11 = await f(s);
    s.close();
}