| 1 | |
|---|---|
| 2 | #ifndef BOOST_MPL_AUX_SIZE_IMPL_HPP_INCLUDED |
| 3 | #define BOOST_MPL_AUX_SIZE_IMPL_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/size_fwd.hpp> |
| 18 | #include <boost/mpl/begin_end.hpp> |
| 19 | #include <boost/mpl/distance.hpp> |
| 20 | #include <boost/mpl/aux_/traits_lambda_spec.hpp> |
| 21 | #include <boost/mpl/aux_/config/workaround.hpp> |
| 22 | |
| 23 | namespace boost { namespace mpl { |
| 24 | |
| 25 | // default implementation; conrete sequences might override it by |
| 26 | // specializing either the 'size_impl' or the primary 'size' template |
| 27 | |
| 28 | template< typename Tag > |
| 29 | struct size_impl |
| 30 | { |
| 31 | template< typename Sequence > struct apply |
| 32 | #if !BOOST_WORKAROUND(BOOST_BORLANDC, BOOST_TESTED_AT(0x561)) |
| 33 | : distance< |
| 34 | typename begin<Sequence>::type |
| 35 | , typename end<Sequence>::type |
| 36 | > |
| 37 | { |
| 38 | #else |
| 39 | { |
| 40 | typedef typename distance< |
| 41 | typename begin<Sequence>::type |
| 42 | , typename end<Sequence>::type |
| 43 | >::type type; |
| 44 | #endif |
| 45 | }; |
| 46 | }; |
| 47 | |
| 48 | BOOST_MPL_ALGORITM_TRAITS_LAMBDA_SPEC(1, size_impl) |
| 49 | |
| 50 | }} |
| 51 | |
| 52 | #endif // BOOST_MPL_AUX_SIZE_IMPL_HPP_INCLUDED |
| 53 |