2015-06-24 14:57:32 +03:00
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#ifndef BOOST_TUPLE_FOR_EACH_HPP_INCLUDED
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#define BOOST_TUPLE_FOR_EACH_HPP_INCLUDED
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#include <boost/integer_sequence.hpp>
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#include <boost/config.hpp>
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#include <tuple>
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#include <utility>
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#include <type_traits>
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#include <cstddef>
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namespace boost
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{
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namespace detail
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{
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template<class Tp, std::size_t... J, class F> BOOST_CONSTEXPR F tuple_for_each_impl( Tp && tp, boost::integer_sequence<std::size_t, J...>, F && f )
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{
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using A = int[sizeof...(J)];
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2017-05-08 18:59:19 +03:00
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return (void)A{ ((void)f(std::get<J>(std::forward<Tp>(tp))), 0)... }, std::forward<F>(f);
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2015-06-24 14:57:32 +03:00
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}
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} // namespace detail
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template<class Tp, class F> BOOST_CONSTEXPR F tuple_for_each( Tp && tp, F && f )
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{
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using seq = boost::make_index_sequence<std::tuple_size<typename std::remove_reference<Tp>::type>::value>;
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return detail::tuple_for_each_impl( std::forward<Tp>(tp), seq(), std::forward<F>(f) );
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}
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} // namespace boost
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#endif // #ifndef BOOST_TUPLE_FOR_EACH_HPP_INCLUDED
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