mirror of
https://github.com/bolero-MURAKAMI/Sprout.git
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230 lines
9 KiB
C++
230 lines
9 KiB
C++
#ifndef SPROUT_ALGORITHM_FIXED_UNIQUE_COPY_HPP
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#define SPROUT_ALGORITHM_FIXED_UNIQUE_COPY_HPP
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#include <cstddef>
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#include <type_traits>
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#include <sprout/config.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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namespace sprout {
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namespace fixed {
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namespace detail {
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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 unique_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 unique_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 unique_copy_impl_3(result, args..., *(sprout::fixed_begin(result) + sizeof...(Args)));
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}
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template<typename InputIterator, typename Result, typename Head, 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) + 1,
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typename sprout::fixed::result_of::algorithm<Result>::type
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>::type unique_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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typename sprout::fixed_container_traits<Result>::difference_type offset,
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Head const& head,
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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..., head);
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}
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template<typename InputIterator, typename Result, typename Head, 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) + 1,
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typename sprout::fixed::result_of::algorithm<Result>::type
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>::type unique_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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typename sprout::fixed_container_traits<Result>::difference_type offset,
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Head const& head,
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Args const&... args
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)
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{
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return first != last && sizeof...(Args) + 1 < static_cast<std::size_t>(offset)
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? !(head == *first)
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? unique_copy_impl_2(sprout::next(first), last, result, offset, *first, args..., head)
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: unique_copy_impl_2(sprout::next(first), last, result, offset, head, args...)
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: unique_copy_impl_3(result, args..., head)
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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 unique_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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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 unique_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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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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? unique_copy_impl_1(first, last, result, offset, args..., *(sprout::fixed_begin(result) + sizeof...(Args)))
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: first != last
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? unique_copy_impl_2(sprout::next(first), last, result, offset + sprout::size(result), *first, args...)
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: unique_copy_impl_3(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 unique_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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)
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{
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return unique_copy_impl_1(first, last, result, sprout::fixed_begin_offset(result));
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}
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} // namespace detail
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//
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// unique_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 unique_copy(
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InputIterator first,
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InputIterator last,
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Result const& result
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)
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{
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return sprout::fixed::detail::unique_copy_impl(first, last, result);
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}
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namespace detail {
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template<typename InputIterator, typename Result, typename BinaryPredicate, typename Head, 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) + 1,
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typename sprout::fixed::result_of::algorithm<Result>::type
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>::type unique_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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BinaryPredicate pred,
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typename sprout::fixed_container_traits<Result>::difference_type offset,
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Head const& head,
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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..., head);
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}
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template<typename InputIterator, typename Result, typename BinaryPredicate, typename Head, 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) + 1,
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typename sprout::fixed::result_of::algorithm<Result>::type
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>::type unique_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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BinaryPredicate pred,
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typename sprout::fixed_container_traits<Result>::difference_type offset,
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Head const& head,
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Args const&... args
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)
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{
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return first != last && sizeof...(Args) + 1 < static_cast<std::size_t>(offset)
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? !pred(head, *first)
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? unique_copy_impl_2(sprout::next(first), last, result, pred, offset, *first, args..., head)
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: unique_copy_impl_2(sprout::next(first), last, result, pred, offset, head, args...)
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: unique_copy_impl_3(result, args..., head)
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;
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}
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template<typename InputIterator, typename Result, typename BinaryPredicate, 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 unique_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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BinaryPredicate pred,
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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 BinaryPredicate, 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 unique_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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BinaryPredicate pred,
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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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? unique_copy_impl_1(first, last, result, pred, offset, args..., *(sprout::fixed_begin(result) + sizeof...(Args)))
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: first != last
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? unique_copy_impl_2(sprout::next(first), last, result, pred, offset + sprout::size(result), *first, args...)
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: unique_copy_impl_3(result, args...)
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;
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}
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template<typename InputIterator, typename Result, typename BinaryPredicate>
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SPROUT_CONSTEXPR inline typename sprout::fixed::result_of::algorithm<Result>::type unique_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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BinaryPredicate pred
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)
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{
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return unique_copy_impl_1(first, last, result, pred, sprout::fixed_begin_offset(result));
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}
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} // namespace detail
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//
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// unique_copy
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//
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template<typename InputIterator, typename Result, typename BinaryPredicate>
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SPROUT_CONSTEXPR inline typename sprout::fixed::result_of::algorithm<Result>::type unique_copy(
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InputIterator first,
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InputIterator last,
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Result const& result,
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BinaryPredicate pred
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)
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{
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return sprout::fixed::detail::unique_copy_impl(first, last, result, pred);
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}
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} // namespace fixed
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using sprout::fixed::unique_copy;
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} // namespace sprout
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#endif // #ifndef SPROUT_ALGORITHM_FIXED_UNIQUE_COPY_HPP
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