text: 
  // (C) Copyright Tobias Schwinger
  //
  // Use modification and distribution are subject to the boost Software License,
  // Version 1.0. (See http://www.boost.org/LICENSE_1_0.txt).
  
  //------------------------------------------------------------------------------
  
  #include <boost/function_types/parameter_types.hpp>
  
  
  namespace ft = boost::function_types;
  
  class C; 
  
  typedef ft::parameter_types<C>::type error_1;
  typedef ft::parameter_types<char>::type error_2;
  typedef ft::parameter_types<void>::type error_3;
  
  