mirror of
https://github.com/bolero-MURAKAMI/Sprout.git
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213 lines
7.7 KiB
C++
213 lines
7.7 KiB
C++
#ifndef SPROUT_ALGORITHM_FIXED_SWAP_ELEMENT_COPY_HPP
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#define SPROUT_ALGORITHM_FIXED_SWAP_ELEMENT_COPY_HPP
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#include <cstddef>
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#include <iterator>
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#include <type_traits>
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#include <sprout/config.hpp>
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#include <sprout/index_tuple.hpp>
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#include <sprout/fixed_container/traits.hpp>
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#include <sprout/fixed_container/functions.hpp>
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#include <sprout/iterator/operation.hpp>
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#include <sprout/algorithm/fixed/result_of.hpp>
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#include HDR_ITERATOR_SSCRISK_CEL_OR_SPROUT_DETAIL
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namespace sprout {
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namespace fixed {
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namespace detail {
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template<typename RandomAccessIterator, typename Result, std::ptrdiff_t... Indexes>
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SPROUT_CONSTEXPR inline typename sprout::fixed::result_of::algorithm<Result>::type swap_element_copy_impl_ra(
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RandomAccessIterator first,
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RandomAccessIterator last,
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Result const& result,
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sprout::index_tuple<Indexes...>,
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RandomAccessIterator pos1,
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RandomAccessIterator pos2,
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typename sprout::fixed_container_traits<Result>::difference_type offset,
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typename sprout::fixed_container_traits<Result>::size_type size,
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typename sprout::fixed_container_traits<Result>::size_type input_size
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)
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{
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return sprout::remake_clone<Result, Result>(
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result,
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sprout::size(result),
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(Indexes >= offset && Indexes < offset + size && Indexes < offset + input_size
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? sprout::next(first, Indexes - offset) == pos1
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? *pos2
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: sprout::next(first, Indexes - offset) == pos2
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? *pos1
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: *sprout::next(first, Indexes - offset)
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: *sprout::next(sprout::fixed_begin(result), Indexes)
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)...
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);
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}
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template<typename RandomAccessIterator, typename Result>
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SPROUT_CONSTEXPR inline typename sprout::fixed::result_of::algorithm<Result>::type swap_element_copy(
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RandomAccessIterator first,
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RandomAccessIterator last,
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Result const& result,
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RandomAccessIterator pos1,
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RandomAccessIterator pos2,
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std::random_access_iterator_tag*
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)
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{
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return sprout::fixed::detail::swap_element_copy_impl_ra(
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first,
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last,
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result,
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typename sprout::index_range<0, sprout::fixed_container_traits<Result>::fixed_size>::type(),
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pos1,
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pos2,
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sprout::fixed_begin_offset(result),
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sprout::size(result),
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NS_SSCRISK_CEL_OR_SPROUT_DETAIL::distance(first, last)
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);
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}
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template<typename Result, typename... Args>
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SPROUT_CONSTEXPR inline typename std::enable_if<
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sprout::fixed_container_traits<Result>::fixed_size == sizeof...(Args),
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typename sprout::fixed::result_of::algorithm<Result>::type
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>::type swap_element_copy_impl_3(
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Result const& result,
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Args const&... args
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)
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{
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return sprout::remake_clone<Result, Result>(result, sprout::size(result), args...);
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}
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template<typename Result, typename... Args>
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SPROUT_CONSTEXPR inline typename std::enable_if<
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sprout::fixed_container_traits<Result>::fixed_size != sizeof...(Args),
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typename sprout::fixed::result_of::algorithm<Result>::type
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>::type swap_element_copy_impl_3(
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Result const& result,
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Args const&... args
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)
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{
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return swap_element_copy_impl_3(result, args..., *sprout::next(sprout::fixed_begin(result), sizeof...(Args)));
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}
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template<typename InputIterator, typename Result, typename... Args>
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SPROUT_CONSTEXPR inline typename std::enable_if<
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sprout::fixed_container_traits<Result>::fixed_size == sizeof...(Args),
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typename sprout::fixed::result_of::algorithm<Result>::type
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>::type swap_element_copy_impl_2(
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InputIterator first,
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InputIterator last,
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Result const& result,
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InputIterator pos1,
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InputIterator pos2,
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typename sprout::fixed_container_traits<Result>::difference_type offset,
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Args const&... args
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)
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{
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return sprout::remake_clone<Result, Result>(result, sprout::size(result), args...);
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}
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template<typename InputIterator, typename Result, typename... Args>
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SPROUT_CONSTEXPR inline typename std::enable_if<
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sprout::fixed_container_traits<Result>::fixed_size != sizeof...(Args),
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typename sprout::fixed::result_of::algorithm<Result>::type
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>::type swap_element_copy_impl_2(
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InputIterator first,
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InputIterator last,
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Result const& result,
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InputIterator pos1,
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InputIterator pos2,
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typename sprout::fixed_container_traits<Result>::difference_type offset,
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Args const&... args
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)
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{
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return first != last && sizeof...(Args) < static_cast<std::size_t>(offset)
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? swap_element_copy_impl_2(sprout::next(first), last, result, pos1, pos2, offset, args..., first == pos1 ? *pos2 : first == pos2 ? *pos1 : *first)
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: swap_element_copy_impl_3(result, args...)
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;
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}
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template<typename InputIterator, typename Result, typename... Args>
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SPROUT_CONSTEXPR inline typename std::enable_if<
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sprout::fixed_container_traits<Result>::fixed_size == sizeof...(Args),
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typename sprout::fixed::result_of::algorithm<Result>::type
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>::type swap_element_copy_impl_1(
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InputIterator first,
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InputIterator last,
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Result const& result,
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InputIterator pos1,
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InputIterator pos2,
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typename sprout::fixed_container_traits<Result>::difference_type offset,
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Args const&... args
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)
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{
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return sprout::remake_clone<Result, Result>(result, sprout::size(result), args...);
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}
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template<typename InputIterator, typename Result, typename... Args>
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SPROUT_CONSTEXPR inline typename std::enable_if<
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sprout::fixed_container_traits<Result>::fixed_size != sizeof...(Args),
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typename sprout::fixed::result_of::algorithm<Result>::type
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>::type swap_element_copy_impl_1(
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InputIterator first,
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InputIterator last,
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Result const& result,
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InputIterator pos1,
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InputIterator pos2,
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typename sprout::fixed_container_traits<Result>::difference_type offset,
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Args const&... args
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)
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{
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return sizeof...(Args) < static_cast<std::size_t>(offset)
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? swap_element_copy_impl_1(first, last, result, pos1, pos2, offset, args..., *sprout::next(sprout::fixed_begin(result), sizeof...(Args)))
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: swap_element_copy_impl_2(first, last, result, pos1, pos2, offset + sprout::size(result), args...)
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;
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}
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template<typename InputIterator, typename Result>
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SPROUT_CONSTEXPR inline typename sprout::fixed::result_of::algorithm<Result>::type swap_element_copy_impl(
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InputIterator first,
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InputIterator last,
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Result const& result,
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InputIterator pos1,
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InputIterator pos2
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)
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{
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return swap_element_copy_impl_1(first, last, result, pos1, pos2, pos1, pos2, sprout::fixed_begin_offset(result));
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}
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template<typename InputIterator, typename Result>
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SPROUT_CONSTEXPR inline typename sprout::fixed::result_of::algorithm<Result>::type swap_element_copy(
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InputIterator first,
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InputIterator last,
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Result const& result,
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InputIterator pos1,
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InputIterator pos2,
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void*
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)
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{
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return sprout::fixed::detail::swap_element_copy_impl(
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first,
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last,
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result
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);
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}
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} // namespace detail
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//
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// swap_element_copy
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//
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template<typename InputIterator, typename Result>
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SPROUT_CONSTEXPR inline typename sprout::fixed::result_of::algorithm<Result>::type swap_element_copy(
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InputIterator first,
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InputIterator last,
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Result const& result,
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InputIterator pos1,
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InputIterator pos2
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)
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{
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typedef typename std::iterator_traits<InputIterator>::iterator_category* category;
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return sprout::fixed::detail::swap_element_copy(
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first,
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last,
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result,
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pos1,
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pos2,
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category()
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);
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}
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} // namespace fixed
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using sprout::fixed::swap_element_copy;
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} // namespace sprout
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#endif // #ifndef SPROUT_ALGORITHM_FIXED_SWAP_ELEMENT_COPY_HPP
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