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78 lines
1.7 KiB
C++
78 lines
1.7 KiB
C++
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#ifndef BOOST_MPL_AUX_NUMERIC_CAST_HPP_INCLUDED
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#define BOOST_MPL_AUX_NUMERIC_CAST_HPP_INCLUDED
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// Copyright Aleksey Gurtovoy 2003-2004
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//
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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// See http://www.boost.org/libs/mpl for documentation.
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// $Id$
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// $Date$
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// $Revision$
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#include <boost/mpl/numeric_cast.hpp>
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#include <boost/mpl/apply_wrap.hpp>
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#include <boost/mpl/aux_/config/forwarding.hpp>
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namespace boost { namespace mpl { namespace aux {
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template<
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typename F
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, typename Tag1
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, typename Tag2
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>
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struct cast1st_impl
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{
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template< typename N1, typename N2 > struct apply
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#if !defined(BOOST_MPL_CFG_NO_NESTED_FORWARDING)
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: apply_wrap2<
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F
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, typename apply_wrap1< BOOST_MPL_AUX_NUMERIC_CAST<Tag1,Tag2>,N1 >::type
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, N2
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>
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{
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#else
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{
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typedef typename apply_wrap2<
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F
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, typename apply_wrap1< BOOST_MPL_AUX_NUMERIC_CAST<Tag1,Tag2>,N1 >::type
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, N2
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>::type type;
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#endif
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};
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};
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template<
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typename F
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, typename Tag1
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, typename Tag2
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>
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struct cast2nd_impl
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{
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template< typename N1, typename N2 > struct apply
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#if !defined(BOOST_MPL_CFG_NO_NESTED_FORWARDING)
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: apply_wrap2<
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F
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, N1
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, typename apply_wrap1< BOOST_MPL_AUX_NUMERIC_CAST<Tag2,Tag1>,N2 >::type
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>
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{
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#else
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{
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typedef typename apply_wrap2<
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F
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, N1
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, typename apply_wrap1< BOOST_MPL_AUX_NUMERIC_CAST<Tag2,Tag1>,N2 >::type
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>::type type;
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#endif
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};
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};
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}}}
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#endif // BOOST_MPL_AUX_NUMERIC_CAST_HPP_INCLUDED
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