dependent.hpp

boost库提供标准的C++ API 配合dev c++使用,功能更加强大

// Copyright David Abrahams 2002. Permission to copy, use,
// modify, sell and distribute this software is granted provided this
// copyright notice appears in all copies. This software is provided
// "as is" without express or implied warranty, and with no claim as
// to its suitability for any purpose.
#ifndef DEPENDENT_DWA200286_HPP
# define DEPENDENT_DWA200286_HPP

namespace boost { namespace python { namespace detail { 

// A way to turn a concrete type T into a type dependent on U. This
// keeps conforming compilers (those implementing proper 2-phase
// name lookup for templates) from complaining about incomplete
// types in situations where it would otherwise be inconvenient or
// impossible to re-order code so that all types are defined in time.

// One such use is when we must return an incomplete T from a member
// function template (which must be defined in the class body to
// keep MSVC happy).
template <class T, class U>
struct dependent
{
    typedef T type;
};

}}} // namespace boost::python::detail

#endif // DEPENDENT_DWA200286_HPP