arg_traits.hh

Go to the documentation of this file.

/* -*- C++ -*-
 * $Id: arg_traits.hh 957 2005-03-07 16:01:20Z sjoyeux $
 */
#ifndef UTILMM_UTILS_ARG_TRAITS_HEADER
# define UTILMM_UTILS_ARG_TRAITS_HEADER

#include "boost/type_traits.hpp"
#include "boost/mpl/if.hpp"

namespace utilmm {
  
  template<typename Ty>
  struct arg_traits {
  private:
    typedef typename boost::remove_cv<Ty>::type real_type;

    typedef typename boost::mpl::if_c< boost::is_pod<real_type>::value,
                                       real_type, 
                                       real_type const &>::type computed_type;
  public:
    typedef computed_type type;
    
  }; // namespace utilmm::arg_traits<>

} // namespace utilmm

#endif // UTILMM_UTILS_ARG_TRAITS_HEADER