title: Does tensorflow c++ API support automatic differentiation for backpropagation?
body: <p>Does tensor-flow C++ API support automatic differentiation to back-propagate the gradient?<br>
  If I write a graph in c++ and would like to run it in a c++ code (not in python!) will automatic differentiation work?  </p>
  
  <p>Let's suppose every op in the graph has a gradient implementation.  </p>
  
  <p>I think the documentation regarding what tensor-flow C++ API can and can't do is is very poor.</p>
  
  <p>Thank you very much for the help</p>