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sprout/algorithm/fixed/stable_partition_copy.hpp
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170
sprout/algorithm/fixed/stable_partition_copy.hpp
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#ifndef SPROUT_ALGORITHM_FIXED_STABLE_PARTITION_COPY_HPP
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#define SPROUT_ALGORITHM_FIXED_STABLE_PARTITION_COPY_HPP
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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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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_container_traits<Result>::fixed_container_type
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>::type stable_partition_copy_impl_4(
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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 typename sprout::fixed_container_traits<Result>::fixed_container_type{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_container_traits<Result>::fixed_container_type
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>::type stable_partition_copy_impl_4(
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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 stable_partition_copy_impl_4(result, args..., *(sprout::fixed_begin(result) + sizeof...(Args)));
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}
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template<typename Iterator, typename Result, typename Predicate, 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_container_traits<Result>::fixed_container_type
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>::type stable_partition_copy_impl_3(
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Iterator first,
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Iterator last,
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Result const& result,
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Predicate 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 typename sprout::fixed_container_traits<Result>::fixed_container_type{args...};
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}
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template<typename Iterator, typename Result, typename Predicate, 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_container_traits<Result>::fixed_container_type
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>::type stable_partition_copy_impl_3(
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Iterator first,
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Iterator last,
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Result const& result,
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Predicate 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 first != last && sizeof...(Args) < offset
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? !pred(*first)
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? stable_partition_copy_impl_3(first + 1, last, result, pred, offset, args..., *first)
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: stable_partition_copy_impl_3(first + 1, last, result, pred, offset, args...)
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: stable_partition_copy_impl_4(result, args...)
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;
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}
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template<typename Iterator, typename Result, typename Predicate, 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_container_traits<Result>::fixed_container_type
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>::type stable_partition_copy_impl_2(
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Iterator first,
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Iterator last,
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Result const& result,
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Predicate pred,
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typename sprout::fixed_container_traits<Result>::difference_type offset,
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Iterator origin,
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Args const&... args
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)
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{
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return typename sprout::fixed_container_traits<Result>::fixed_container_type{args...};
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}
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template<typename Iterator, typename Result, typename Predicate, 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_container_traits<Result>::fixed_container_type
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>::type stable_partition_copy_impl_2(
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Iterator first,
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Iterator last,
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Result const& result,
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Predicate pred,
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typename sprout::fixed_container_traits<Result>::difference_type offset,
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Iterator origin,
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Args const&... args
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)
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{
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return first != last && sizeof...(Args) < offset
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? pred(*first)
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? stable_partition_copy_impl_2(first + 1, last, result, pred, offset, origin, args..., *first)
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: stable_partition_copy_impl_2(first + 1, last, result, pred, offset, origin, args...)
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: stable_partition_copy_impl_3(origin, last, result, pred, offset, args...)
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;
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}
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template<typename Iterator, typename Result, typename Predicate, 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_container_traits<Result>::fixed_container_type
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>::type stable_partition_copy_impl_1(
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Iterator first,
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Iterator last,
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Result const& result,
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Predicate pred,
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typename sprout::fixed_container_traits<Result>::difference_type offset,
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Iterator origin,
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Args const&... args
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)
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{
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return typename sprout::fixed_container_traits<Result>::fixed_container_type{args...};
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}
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template<typename Iterator, typename Result, typename Predicate, 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_container_traits<Result>::fixed_container_type
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>::type stable_partition_copy_impl_1(
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Iterator first,
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Iterator last,
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Result const& result,
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Predicate pred,
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typename sprout::fixed_container_traits<Result>::difference_type offset,
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Iterator origin,
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Args const&... args
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)
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{
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return sizeof...(Args) < offset
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? stable_partition_copy_impl_1(first, last, result, pred, offset, origin, args..., *(sprout::fixed_begin(result) + sizeof...(Args)))
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: stable_partition_copy_impl_2(first, last, result, pred, offset + sprout::size(result), origin, args...)
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;
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}
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template<typename Iterator, typename Result, typename Predicate>
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SPROUT_CONSTEXPR inline typename sprout::fixed_container_traits<Result>::fixed_container_type stable_partition_copy_impl(
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Iterator first,
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Iterator last,
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Result const& result,
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Predicate pred
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)
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{
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return stable_partition_copy_impl_1(first, last, result, pred, sprout::fixed_begin_offset(result), first);
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}
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} // namespace detail
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//
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// stable_partition_copy
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//
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template<typename Iterator, typename Result, typename Predicate>
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SPROUT_CONSTEXPR inline typename sprout::fixed_container_traits<Result>::fixed_container_type stable_partition_copy(
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Iterator first,
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Iterator last,
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Result const& result,
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Predicate pred
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)
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{
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return sprout::fixed::detail::stable_partition_copy_impl(first, last, result, pred);
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}
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} // namespace fixed
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} // namespace sprout
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#endif // #ifndef SPROUT_ALGORITHM_FIXED_STABLE_PARTITION_COPY_HPP
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