mirror of
https://github.com/bolero-MURAKAMI/Sprout.git
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101 lines
3.7 KiB
C++
101 lines
3.7 KiB
C++
/*=============================================================================
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Copyright (c) 2011-2015 Bolero MURAKAMI
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https://github.com/bolero-MURAKAMI/Sprout
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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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#ifndef SPROUT_OPERATION_FIXED_INSERT_HPP
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#define SPROUT_OPERATION_FIXED_INSERT_HPP
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#include <type_traits>
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#include <sprout/config.hpp>
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#include <sprout/index_tuple/metafunction.hpp>
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#include <sprout/container/traits.hpp>
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#include <sprout/container/functions.hpp>
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#include <sprout/container/indexes.hpp>
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#include <sprout/iterator/operation.hpp>
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#include <sprout/detail/param_at.hpp>
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namespace sprout {
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namespace fixed {
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namespace results {
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//
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// insert
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//
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template<typename Container, typename T, typename... Values>
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struct insert
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: public sprout::container_transform_traits<
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Container
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>::template rebind_size<
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sprout::container_traits<Container>::static_size + 1 + sizeof...(Values)
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>
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{};
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} // namespace results
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namespace detail {
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template<typename Result, typename Container, typename T, typename... Values, sprout::index_t... Indexes>
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inline SPROUT_CONSTEXPR Result
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insert_impl(
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Container const& cont, sprout::index_tuple<Indexes...>,
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typename sprout::container_traits<Container>::difference_type pos, T const& v, Values const&... values
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)
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{
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return sprout::remake<Result>(
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cont,
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sprout::size(cont) + 1 + sizeof...(Values),
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(Indexes < sprout::container_traits<Container>::static_size + 1 + sizeof...(Values)
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? (Indexes < pos
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? *sprout::next(sprout::internal_begin(cont), Indexes)
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: Indexes < pos + 1 + sizeof...(Values)
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? sprout::detail::param_at<typename sprout::container_traits<Result>::value_type>(Indexes - pos, v, values...)
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: *sprout::next(sprout::internal_begin(cont), Indexes - (1 + sizeof...(Values)))
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)
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: typename sprout::container_traits<Result>::value_type()
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)...
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);
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}
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} // namespace detail
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//
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// insert
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//
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template<typename Container, typename T, typename... Values>
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inline SPROUT_CONSTEXPR typename sprout::fixed::results::insert<Container, T, Values...>::type
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insert(
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Container const& cont, typename sprout::container_traits<Container>::const_iterator pos,
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T const& v, Values const&... values
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)
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{
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return sprout::fixed::detail::insert_impl<typename sprout::fixed::results::insert<Container, T, Values...>::type>(
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cont,
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sprout::container_indexes<typename sprout::fixed::results::insert<Container, T, Values...>::type>::make(),
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sprout::distance(sprout::internal_begin(cont), pos),
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v,
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values...
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);
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}
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template<typename Container, typename T, typename... Values>
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inline SPROUT_CONSTEXPR typename sprout::fixed::results::insert<Container, T, Values...>::type
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insert(
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Container const& cont, typename sprout::container_traits<Container>::difference_type pos,
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T const& v, Values const&... values
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)
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{
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return sprout::fixed::detail::insert_impl<typename sprout::fixed::results::insert<Container, T, Values...>::type>(
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cont,
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sprout::container_indexes<typename sprout::fixed::results::insert<Container, T, Values...>::type>::make(),
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sprout::distance(sprout::internal_begin(cont), sprout::next(sprout::begin(cont), pos)),
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v,
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values...
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);
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}
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} // namespace fixed
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namespace results {
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using sprout::fixed::results::insert;
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} // namespace results
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using sprout::fixed::insert;
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} // namespace sprout
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#endif // #ifndef SPROUT_OPERATION_FIXED_INSERT_HPP
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