Unsugared await

std::future<ptrdiff_t> tcp_reader(int total)
{
    char bug[64 * 1024];
    ptrdiff_t result = 0;

    return Tcp::Connect("127.0.0.1", 1337).then([=] (auto conn);
    {
        do
        {
            auto bytesRead = await conn.Read(buf, sizeof(buf));
            total -= bytesRead;
            result += std::count(buf, buf + bytesRead, 'c');
        }
        while (total > 0);
        return result;
    }
}