title: mongo-cxx-driver -New C++11 driver - How to create Document from binary data
body: <p>for a project I need a c++ implementation for bson. 
  According to the BSON Specs there are serveral bson c++ implementations.
  I already tried each of them.
  <a href="https://github.com/jbenet/bson-cpp" rel="nofollow">Bson-cpp</a> isnt supported anymore.
  <a href="https://github.com/dwight/bson-cxx" rel="nofollow">Bson-cxx</a> wont even compile on my debian stretch.</p>
  
  <p>So I tried the official mongodb-cxx-driver. 
  But i want to use the current master-branch of the driver which contains the new c++11 driver because it uses cmake as build system. I already managed to create a bson document and convert it to a binary array. My problem at the moment is that I don't get how to create a bson document from an array of binary data even after digging through their code for two hours. </p>
  
  <p>Is this functionality even implemented at the moment ? </p>