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45 lines
1.5 KiB
C++
45 lines
1.5 KiB
C++
/*=============================================================================
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Copyright (c) 2001-2011 Joel de Guzman
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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==============================================================================*/
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#if !defined(FUSION_REPLACE_IF_08182005_0939)
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#define FUSION_REPLACE_IF_08182005_0939
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#include <boost/fusion/support/config.hpp>
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#include <boost/fusion/view/transform_view/transform_view.hpp>
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#include <boost/fusion/algorithm/transformation/detail/replace_if.hpp>
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#include <boost/fusion/support/is_sequence.hpp>
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#include <boost/utility/enable_if.hpp>
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#include <boost/type_traits/is_same.hpp>
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namespace boost { namespace fusion
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{
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namespace result_of
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{
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template <typename Sequence, typename F, typename T>
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struct replace_if
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{
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typedef transform_view<Sequence, detail::replacer_if<F, T> > type;
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};
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}
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template <typename Sequence, typename F, typename T>
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BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED
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inline typename
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enable_if<
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traits::is_sequence<Sequence>
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, typename result_of::replace_if<Sequence const, F, T>::type
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>::type
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replace_if(Sequence const& seq, F pred, T const& new_value)
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{
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typedef typename result_of::replace_if<Sequence const, F, T>::type result;
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detail::replacer_if<F, T> f(pred, new_value);
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return result(seq, f);
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}
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}}
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#endif
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