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| 2 | #ifndef BOOST_MPL_AUX_SIZE_IMPL_HPP_INCLUDED |
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| 3 | #define BOOST_MPL_AUX_SIZE_IMPL_HPP_INCLUDED |
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| 4 | |
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| 5 | // Copyright Aleksey Gurtovoy 2000-2004 |
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| 6 | // |
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| 7 | // Distributed under the Boost Software License, Version 1.0. |
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| 8 | // (See accompanying file LICENSE_1_0.txt or copy at |
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| 9 | // http://www.boost.org/LICENSE_1_0.txt) |
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| 10 | // |
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| 11 | // See http://www.boost.org/libs/mpl for documentation. |
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| 12 | |
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| 13 | // $Id: size_impl.hpp 49267 2008-10-11 06:19:02Z agurtovoy $ |
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| 14 | // $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $ |
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| 15 | // $Revision: 49267 $ |
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| 16 | |
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| 17 | #include <boost/mpl/size_fwd.hpp> |
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| 18 | #include <boost/mpl/begin_end.hpp> |
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| 19 | #include <boost/mpl/distance.hpp> |
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| 20 | #include <boost/mpl/aux_/traits_lambda_spec.hpp> |
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| 21 | #include <boost/mpl/aux_/config/workaround.hpp> |
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| 22 | |
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| 23 | namespace boost { namespace mpl { |
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| 24 | |
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| 25 | // default implementation; conrete sequences might override it by |
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| 26 | // specializing either the 'size_impl' or the primary 'size' template |
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| 27 | |
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| 28 | template< typename Tag > |
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| 29 | struct size_impl |
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| 30 | { |
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| 31 | template< typename Sequence > struct apply |
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| 32 | #if !BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x561)) |
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| 33 | : distance< |
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| 34 | typename begin<Sequence>::type |
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| 35 | , typename end<Sequence>::type |
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| 36 | > |
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| 37 | { |
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| 38 | #else |
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| 39 | { |
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| 40 | typedef typename distance< |
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| 41 | typename begin<Sequence>::type |
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| 42 | , typename end<Sequence>::type |
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| 43 | >::type type; |
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| 44 | #endif |
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| 45 | }; |
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| 46 | }; |
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| 47 | |
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| 48 | BOOST_MPL_ALGORITM_TRAITS_LAMBDA_SPEC(1, size_impl) |
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| 49 | |
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| 50 | }} |
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| 51 | |
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| 52 | #endif // BOOST_MPL_AUX_SIZE_IMPL_HPP_INCLUDED |
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