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1 | |
2 | #ifndef BOOST_MPL_NEXT_PRIOR_HPP_INCLUDED | |
3 | #define BOOST_MPL_NEXT_PRIOR_HPP_INCLUDED | |
4 | ||
5 | // Copyright Aleksey Gurtovoy 2000-2004 | |
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_/common_name_wknd.hpp> | |
18 | #include <boost/mpl/aux_/na_spec.hpp> | |
19 | #include <boost/mpl/aux_/lambda_support.hpp> | |
20 | ||
21 | namespace boost { namespace mpl { | |
22 | ||
23 | BOOST_MPL_AUX_COMMON_NAME_WKND(next) | |
24 | BOOST_MPL_AUX_COMMON_NAME_WKND(prior) | |
25 | ||
26 | template< | |
27 | typename BOOST_MPL_AUX_NA_PARAM(T) | |
28 | > | |
29 | struct next | |
30 | { | |
31 | typedef typename T::next type; | |
32 | BOOST_MPL_AUX_LAMBDA_SUPPORT(1,next,(T)) | |
33 | }; | |
34 | ||
35 | template< | |
36 | typename BOOST_MPL_AUX_NA_PARAM(T) | |
37 | > | |
38 | struct prior | |
39 | { | |
40 | typedef typename T::prior type; | |
41 | BOOST_MPL_AUX_LAMBDA_SUPPORT(1,prior,(T)) | |
42 | }; | |
43 | ||
44 | BOOST_MPL_AUX_NA_SPEC(1, next) | |
45 | BOOST_MPL_AUX_NA_SPEC(1, prior) | |
46 | ||
47 | }} | |
48 | ||
49 | #endif // BOOST_MPL_NEXT_PRIOR_HPP_INCLUDED |