title: CUDA C - library error from cutil.h to helper_cuda.h
body: <p>I have a project developed in C, on CUDA 4.0. Now i try to compile it on CUDA 5.0 but i have some problem with cutil.h, i have changed cutil to helper_cuda.h and i receive this error always:</p>
  
  <pre><code>In file included from /path/to/helper_cuda.h:24
  </code></pre>
  
  <p>and</p>
  
  <pre><code>/path/to/helper_string.h:18: fatal error: fstream: No such file or directory
  </code></pre>
  
  <p>fstream is a C++ library, how i can compile this without have this error?</p>
  
  <p>Sorry for my english :D</p>