title: Not a member of global namespace?
body: <p>I have the error:</p>
  
  <blockquote>
    <p>error C2039: 'read' : is not a member of '`global namespace''
    and 
    error C2661: 'Calc::SymString::read' : no overloaded function takes 3 arguments
    from the line:
     if (::read(fd_sock, &amp;size, 4) != 4) </p>
  </blockquote>
  
  <p>This error and similar ones appear quite a lot in my code. Does anyone know what the problem could be?
  I am using Windows Visual Studio 2010 and I am migrating code from Unix.
  Thanks in advance!</p>