title: Will folders and namespaces affect performance in C++ and cross-platform?
body: <p>A question was asked about <a href="https://gamedev.stackexchange.com/questions/23999/does-namespace-or-folder-structure-affect-the-performance-of-an-assembly">whether namespace and folder structure would affect performance of an assembly in C#</a>. The answers were very useful, but where specific to C# and the CLR.</p>
  
  <p>How will the namespace and folder structure affect the performance of an assembly if it is written in C++ with gcc? What's the situation on other OSes, such as Linux or Mac OS?</p>
  
  <p>If there are any significant performance issues, what should I do or avoid doing to maximize performance?</p>