| 1 | |
|---|---|
| 2 | #ifndef BOOST_MPL_ALWAYS_HPP_INCLUDED |
| 3 | #define BOOST_MPL_ALWAYS_HPP_INCLUDED |
| 4 | |
| 5 | // Copyright Aleksey Gurtovoy 2001-2004 |
| 6 | // |
| 7 | // Distributed under the Boost Software License, Version 1.0. |
| 8 | // (See accompanying file LICENSE_1_0.txt or copy at |
| 9 | // http://www.boost.org/LICENSE_1_0.txt) |
| 10 | // |
| 11 | // See http://www.boost.org/libs/mpl for documentation. |
| 12 | |
| 13 | // $Id$ |
| 14 | // $Date$ |
| 15 | // $Revision$ |
| 16 | |
| 17 | #include <boost/mpl/aux_/preprocessor/default_params.hpp> |
| 18 | #include <boost/mpl/aux_/na.hpp> |
| 19 | #include <boost/mpl/aux_/arity_spec.hpp> |
| 20 | |
| 21 | namespace boost { namespace mpl { |
| 22 | |
| 23 | template< typename Value > struct always |
| 24 | { |
| 25 | template< |
| 26 | BOOST_MPL_PP_DEFAULT_PARAMS(BOOST_MPL_LIMIT_METAFUNCTION_ARITY, typename T, na) |
| 27 | > |
| 28 | struct apply |
| 29 | { |
| 30 | typedef Value type; |
| 31 | }; |
| 32 | }; |
| 33 | |
| 34 | BOOST_MPL_AUX_ARITY_SPEC(0, always) |
| 35 | |
| 36 | }} |
| 37 | |
| 38 | #endif // BOOST_MPL_ALWAYS_HPP_INCLUDED |
| 39 |