[857] | 1 |
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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 | // $Source: /cvsroot/boost/boost/boost/mpl/aux_/size_impl.hpp,v $
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| 14 | // $Date: 2004/09/02 15:40:44 $
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| 15 | // $Revision: 1.5 $
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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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