title: Adding C++ code to an iOS project
body: <p>I'm trying to add a C++ library to an iOS project. I added the source code files to the project, but seems like they are not interpreted like a C++ code.</p>
  
  <p>For instance, I get the following error in a header file:</p>
  
  <pre><code>namespace soundtouch // Unknown type name 'namespace'
  {
  </code></pre>
  
  <p>I already tried to change the type in the File inspector to "C++ Source" and "C++ Header" - nothing changed.</p>
  
  <p>How can I import a C++ library to an XCode project?</p>