[ceph.git] / ceph / src / boost / libs / parameter / include / boost / parameter / aux_ / void.hpp

// Copyright Daniel Wallin, David Abrahams 2005. Use, modification and
// distribution is subject to the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)

#ifndef BOOST_PARAMETER_VOID_050329_HPP
#define BOOST_PARAMETER_VOID_050329_HPP

namespace boost { namespace parameter { 

// A placemarker for "no argument passed."
// MAINTAINER NOTE: Do not make this into a metafunction
struct void_ {}; 

namespace aux 
{

  inline void_& void_reference()
  {
      static void_ instance;
      return instance;
  }

} // namespace aux

}} // namespace boost::parameter

#endif // BOOST_PARAMETER_VOID_050329_HPP
Commit	Line	Data
7c673cae FG	1	// Copyright Daniel Wallin, David Abrahams 2005. Use, modification and
	2	// distribution is subject to the Boost Software License, Version 1.0. (See
	3	// accompanying file LICENSE_1_0.txt or copy at
	4	// http://www.boost.org/LICENSE_1_0.txt)
	5
	6	#ifndef BOOST_PARAMETER_VOID_050329_HPP
	7	#define BOOST_PARAMETER_VOID_050329_HPP
	8
	9	namespace boost { namespace parameter {
	10
	11	// A placemarker for "no argument passed."
	12	// MAINTAINER NOTE: Do not make this into a metafunction
	13	struct void_ {};
	14
	15	namespace aux
	16	{
	17
	18	inline void_& void_reference()
	19	{
	20	static void_ instance;
	21	return instance;
	22	}
	23
	24	} // namespace aux
	25
	26	}} // namespace boost::parameter
	27
	28	#endif // BOOST_PARAMETER_VOID_050329_HPP
	29