[Boost-sandbox-cvs] boost-sandbox/boost/units is_dimension_list.hpp, NONE, 1.1

[Matthias S. <mat...@us...>]

Update of /cvsroot/boost-sandbox/boost-sandbox/boost/units
In directory sc8-pr-cvs3.sourceforge.net:/tmp/cvs-serv10517/boost/units

Added Files:
	is_dimension_list.hpp 
Log Message:
granular is_dimension_list predicate


--- NEW FILE: is_dimension_list.hpp ---
// mcs::units - A C++ library for zero-overhead dimensional analysis and 
// unit/quantity manipulation and conversion
//
// Copyright (C) 2003-2007 Matthias Christian Schabel
// Copyright (C) 2007 Steven Watanabe
//
// Distributed under 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_UNITS_IS_DIMENSION_LIST_HPP
#define BOOST_UNITS_IS_DIMENSION_LIST_HPP

#include <boost/mpl/bool.hpp>

#include <boost/units/units_fwd.hpp>

namespace boost {

namespace units {

/// Check that a type is a valid dimension list.
template<typename Seq>
struct is_dimension_list :
    public mpl::false_
{ };

template<typename Item, typename Next>
struct is_dimension_list<dimension_list<Item, Next> > :
    public mpl::true_
{ };

template<>
struct is_dimension_list<dimensionless_type> :
    public mpl::true_
{ };

} // namespace units

} // namespace boost

#endif // BOOST_UNITS_IS_DIMENSION_LIST_HPP