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221
sprout/algorithm/fixed/unique_copy.hpp
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221
sprout/algorithm/fixed/unique_copy.hpp
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#ifndef SPROUT_ALGORITHM_FIXED_UNIQUE_COPY_HPP
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#define SPROUT_ALGORITHM_FIXED_UNIQUE_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 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 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 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 Iterator, 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_container_traits<Result>::fixed_container_type
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>::type unique_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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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 typename sprout::fixed_container_traits<Result>::fixed_container_type{args..., head};
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}
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template<typename Iterator, 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_container_traits<Result>::fixed_container_type
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>::type unique_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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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 < offset
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? !(head == *first)
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? unique_copy_impl_2(first + 1, last, result, offset, *first, args..., head)
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: unique_copy_impl_2(first + 1, 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 Iterator, 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 unique_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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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... 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 unique_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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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) < offset
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? unique_copy_impl_1(first, last, result, offset, args..., *(sprout::fixed_begin(result) + sizeof...(Args)))
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: unique_copy_impl_2(first + 1, last, result, offset + sprout::size(result), *first, args...)
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;
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}
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template<typename Iterator, typename Result>
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SPROUT_CONSTEXPR inline typename sprout::fixed_container_traits<Result>::fixed_container_type unique_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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)
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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 Iterator, typename Result>
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SPROUT_CONSTEXPR inline typename sprout::fixed_container_traits<Result>::fixed_container_type unique_copy(
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Iterator first,
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Iterator 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 Iterator, 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_container_traits<Result>::fixed_container_type
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>::type unique_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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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 typename sprout::fixed_container_traits<Result>::fixed_container_type{args..., head};
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}
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template<typename Iterator, 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_container_traits<Result>::fixed_container_type
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>::type unique_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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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 < offset
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? !pred(head, *first)
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? unique_copy_impl_2(first + 1, last, result, pred, offset, *first, args..., head)
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: unique_copy_impl_2(first + 1, 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 Iterator, 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_container_traits<Result>::fixed_container_type
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>::type unique_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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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 typename sprout::fixed_container_traits<Result>::fixed_container_type{args...};
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}
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template<typename Iterator, 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_container_traits<Result>::fixed_container_type
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>::type unique_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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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) < 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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: unique_copy_impl_2(first + 1, last, result, pred, offset + sprout::size(result), *first, args...)
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;
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}
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template<typename Iterator, typename Result, typename BinaryPredicate>
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SPROUT_CONSTEXPR inline typename sprout::fixed_container_traits<Result>::fixed_container_type unique_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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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 Iterator, typename Result, typename BinaryPredicate>
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SPROUT_CONSTEXPR inline typename sprout::fixed_container_traits<Result>::fixed_container_type unique_copy(
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Iterator first,
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Iterator 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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} // namespace sprout
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#endif // #ifndef SPROUT_ALGORITHM_FIXED_UNIQUE_COPY_HPP
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