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50 lines
1.5 KiB
C++
50 lines
1.5 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_ITERATOR_ITERATOR_TRAITS_HPP
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#define SPROUT_ITERATOR_ITERATOR_TRAITS_HPP
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#include <iterator>
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#include <sprout/config.hpp>
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#include <sprout/utility/pack.hpp>
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#include <sprout/detail/nil_base.hpp>
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namespace sprout {
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//
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// iterator_traits
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//
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namespace detail {
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template<typename Iterator, typename = void>
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struct iterator_traits_impl
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: public sprout::detail::nil_base
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{};
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template<typename Iterator>
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struct iterator_traits_impl<
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Iterator,
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typename sprout::head_element<
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void,
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typename Iterator::difference_type,
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typename Iterator::value_type,
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typename Iterator::pointer,
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typename Iterator::reference,
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typename Iterator::iterator_category
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>::type
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>
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: public std::iterator_traits<Iterator>
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{};
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} // namespace detail
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template<typename Iterator>
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struct iterator_traits
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: public sprout::detail::iterator_traits_impl<Iterator>
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{};
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template<typename T>
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struct iterator_traits<T*>
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: public std::iterator_traits<T*>
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{};
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} // namespace sprout
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#endif // #ifndef SPROUT_ITERATOR_ITERATOR_TRAITS_HPP
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