title: Performance of auto_ptr vs. shared_ptr
body: <p>I didn't find information about performance issues with <strong>auto_ptr</strong> and <strong>shared_ptr</strong>(I use <em>tr1</em> implementation). As shared_ptr is more complicated compared to auto_ptr so auto_ptr is faster? So in general question sounds like what can you say about performance of shared_ptr with comparison with auto_ptr?</p>
  
  <p>PS: I know that now unique_ptr is preferable than auto_ptr, but not all compilers support it, so question is about auto_ptr and shared_ptr</p>