mirror of
https://github.com/bolero-MURAKAMI/Sprout.git
synced 2024-12-25 21:35:41 +00:00
580 lines
23 KiB
C++
580 lines
23 KiB
C++
/*=============================================================================
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Copyright (c) 2011-2014 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_CONTAINER_CONTAINER_TRAITS_HPP
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#define SPROUT_CONTAINER_CONTAINER_TRAITS_HPP
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#include <iterator>
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#include <array>
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#include <type_traits>
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#include <sprout/config.hpp>
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#include <sprout/workaround/std/cstddef.hpp>
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#include <sprout/type_traits/integral_constant.hpp>
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#include <sprout/type_traits/has_xxx.hpp>
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#include <sprout/type_traits/inherit_if_xxx.hpp>
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#include <sprout/container/detail/array_like.hpp>
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#if SPROUT_USE_PTR_INDEX_ITERATOR_IMPLEMENTATION
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# include <sprout/iterator/ptr_index_iterator.hpp>
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#endif
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#include <sprout/workaround/base_class_construct.hpp>
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namespace sprout {
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template<typename Container>
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struct container_traits;
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namespace detail {
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//
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// has_value_type
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// has_iterator
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// has_const_iterator
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// has_reference
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// has_const_reference
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// has_size_type
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// has_difference_type
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// has_pointer
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// has_const_pointer
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// has_static_size
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//
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SPROUT_HAS_XXX_TYPE_DEF_LAZY(value_type);
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SPROUT_HAS_XXX_TYPE_DEF_LAZY(iterator);
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SPROUT_HAS_XXX_TYPE_DEF_LAZY(const_iterator);
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SPROUT_HAS_XXX_TYPE_DEF_LAZY(reference);
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SPROUT_HAS_XXX_TYPE_DEF_LAZY(const_reference);
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SPROUT_HAS_XXX_TYPE_DEF_LAZY(size_type);
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SPROUT_HAS_XXX_TYPE_DEF_LAZY(difference_type);
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SPROUT_HAS_XXX_TYPE_DEF_LAZY(pointer);
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SPROUT_HAS_XXX_TYPE_DEF_LAZY(const_pointer);
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SPROUT_HAS_XXX_VALUE_DEF_LAZY(static_size);
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//
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// inherit_if_value_type
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// inherit_if_iterator
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// inherit_if_const_iterator
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// inherit_if_reference
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// inherit_if_const_reference
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// inherit_if_size_type
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// inherit_if_difference_type
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// inherit_if_pointer
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// inherit_if_const_pointer
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// inherit_if_static_size
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//
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SPROUT_INHERIT_IF_XXX_TYPE_DEF_LAZY(value_type);
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SPROUT_INHERIT_IF_XXX_TYPE_DEF_LAZY(iterator);
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SPROUT_INHERIT_IF_XXX_TYPE_DEF_LAZY(const_iterator);
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SPROUT_INHERIT_IF_XXX_TYPE_DEF_LAZY(reference);
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SPROUT_INHERIT_IF_XXX_TYPE_DEF_LAZY(const_reference);
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SPROUT_INHERIT_IF_XXX_TYPE_DEF_LAZY(size_type);
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SPROUT_INHERIT_IF_XXX_TYPE_DEF_LAZY(difference_type);
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SPROUT_INHERIT_IF_XXX_TYPE_DEF_LAZY(pointer);
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SPROUT_INHERIT_IF_XXX_TYPE_DEF_LAZY(const_pointer);
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SPROUT_INHERIT_IF_XXX_CONSTANT_DEF_LAZY(static_size);
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//
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// inherit_iterator_if_const_iterator
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// inherit_const_iterator_if_iterator
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// inherit_reference_if_const_reference
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// inherit_const_reference_if_reference
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// inherit_pointer_if_const_pointer
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// inherit_const_pointer_if_pointer
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//
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SPROUT_INHERIT_ALIAS_IF_XXX_TYPE_DEF_LAZY(iterator, const_iterator);
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SPROUT_INHERIT_ALIAS_IF_XXX_TYPE_DEF_LAZY(const_iterator, iterator);
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SPROUT_INHERIT_ALIAS_IF_XXX_TYPE_DEF_LAZY(reference, const_reference);
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SPROUT_INHERIT_ALIAS_IF_XXX_TYPE_DEF_LAZY(const_reference, reference);
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SPROUT_INHERIT_ALIAS_IF_XXX_TYPE_DEF_LAZY(pointer, const_pointer);
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SPROUT_INHERIT_ALIAS_IF_XXX_TYPE_DEF_LAZY(const_pointer, pointer);
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//
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// has_container_nosy_iterator
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//
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template<typename Container>
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struct has_container_nosy_iterator
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: public sprout::integral_constant<
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bool,
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sprout::detail::has_iterator<Container>::value
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|| sprout::detail::has_const_iterator<Container>::value
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>
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{};
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//
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// has_container_nosy_value_type
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//
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template<typename Container>
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struct has_container_nosy_value_type
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: public sprout::integral_constant<
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bool,
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sprout::detail::has_value_type<Container>::value
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|| sprout::detail::has_container_nosy_iterator<Container>::value
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>
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{};
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//
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// has_container_nosy_static_size
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//
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template<typename Container>
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struct has_container_nosy_static_size
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: public sprout::integral_constant<
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bool,
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sprout::detail::has_static_size<Container>::value
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|| sprout::detail::is_array_like<Container>::value
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>
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{};
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//
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// container_nosy_iterator
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//
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template<typename Container, bool HasIterator, bool HasConstIterator>
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struct container_nosy_iterator_impl {};
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template<typename Container, bool HasConstIterator>
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struct container_nosy_iterator_impl<Container, true, HasConstIterator>
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: public sprout::detail::inherit_if_iterator<Container>
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{};
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template<typename Container>
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struct container_nosy_iterator_impl<Container, false, true>
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: public sprout::detail::inherit_iterator_if_const_iterator<Container>
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{};
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template<typename Container>
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struct container_nosy_iterator
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: public sprout::detail::container_nosy_iterator_impl<
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Container,
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sprout::detail::has_iterator<Container>::value,
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sprout::detail::has_const_iterator<Container>::value
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>
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{};
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//
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// container_nosy_const_iterator
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//
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template<typename Container, bool HasConstIterator, bool HasIterator>
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struct container_nosy_const_iterator_impl {};
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template<typename Container, bool HasIterator>
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struct container_nosy_const_iterator_impl<Container, true, HasIterator>
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: public sprout::detail::inherit_if_const_iterator<Container>
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{};
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template<typename Container>
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struct container_nosy_const_iterator_impl<Container, false, true>
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: public sprout::detail::inherit_const_iterator_if_iterator<Container>
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{};
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template<typename Container>
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struct container_nosy_const_iterator
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: public sprout::detail::container_nosy_const_iterator_impl<
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Container,
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sprout::detail::has_const_iterator<Container>::value,
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sprout::detail::has_iterator<Container>::value
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>
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{};
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//
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// container_nosy_value_type
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//
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template<typename Container, bool HasValueType, bool HasNosyIterator>
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struct container_nosy_value_type_impl {};
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template<typename Container, bool HasNosyIterator>
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struct container_nosy_value_type_impl<Container, true, HasNosyIterator> {
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public:
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typedef typename Container::value_type value_type;
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};
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template<typename Container>
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struct container_nosy_value_type_impl<Container, false, true> {
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public:
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typedef typename std::iterator_traits<
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typename sprout::detail::container_nosy_iterator<Container>::iterator
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>::value_type value_type;
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};
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template<typename Container>
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struct container_nosy_value_type
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: public sprout::detail::container_nosy_value_type_impl<
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Container,
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sprout::detail::has_value_type<Container>::value,
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sprout::detail::has_container_nosy_iterator<Container>::value
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>
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{};
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//
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// container_nosy_reference
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//
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template<typename Container, bool HasReference, bool HasConstReference, bool HasNosyIterator>
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struct container_nosy_reference_impl {};
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template<typename Container, bool HasConstReference, bool HasNosyIterator>
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struct container_nosy_reference_impl<Container, true, HasConstReference, HasNosyIterator> {
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public:
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typedef typename Container::reference reference;
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};
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template<typename Container, bool HasNosyIterator>
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struct container_nosy_reference_impl<Container, false, true, HasNosyIterator> {
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public:
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typedef typename Container::const_reference reference;
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};
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template<typename Container>
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struct container_nosy_reference_impl<Container, false, false, true> {
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public:
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typedef typename std::iterator_traits<
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typename sprout::detail::container_nosy_iterator<Container>::iterator
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>::reference reference;
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};
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template<typename Container>
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struct container_nosy_reference
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: public sprout::detail::container_nosy_reference_impl<
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Container,
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sprout::detail::has_reference<Container>::value,
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sprout::detail::has_const_reference<Container>::value,
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sprout::detail::has_container_nosy_iterator<Container>::value
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>
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{};
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//
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// container_nosy_const_reference
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//
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template<typename Container, bool HasConstReference, bool HasReference, bool HasNosyIterator>
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struct container_nosy_const_reference_impl {};
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template<typename Container, bool HasReference, bool HasNosyIterator>
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struct container_nosy_const_reference_impl<Container, true, HasReference, HasNosyIterator> {
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public:
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typedef typename Container::const_reference const_reference;
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};
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template<typename Container, bool HasNosyIterator>
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struct container_nosy_const_reference_impl<Container, false, true, HasNosyIterator> {
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public:
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typedef typename Container::reference const_reference;
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};
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template<typename Container>
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struct container_nosy_const_reference_impl<Container, false, false, true> {
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public:
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typedef typename std::iterator_traits<
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typename sprout::detail::container_nosy_const_iterator<Container>::const_iterator
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>::reference const_reference;
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};
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template<typename Container>
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struct container_nosy_const_reference
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: public sprout::detail::container_nosy_const_reference_impl<
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Container,
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sprout::detail::has_const_reference<Container>::value,
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sprout::detail::has_reference<Container>::value,
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sprout::detail::has_container_nosy_iterator<Container>::value
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>
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{};
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//
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// container_nosy_difference_type
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//
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template<typename Container, bool HasDifferenceType, bool HasNosyIterator>
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struct container_nosy_difference_type_impl {
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public:
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typedef std::ptrdiff_t difference_type;
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};
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template<typename Container, bool HasNosyIterator>
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struct container_nosy_difference_type_impl<Container, true, HasNosyIterator> {
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public:
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typedef typename Container::difference_type difference_type;
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};
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template<typename Container>
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struct container_nosy_difference_type_impl<Container, false, true> {
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public:
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typedef typename std::iterator_traits<
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typename sprout::detail::container_nosy_iterator<Container>::iterator
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>::difference_type difference_type;
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};
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template<typename Container>
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struct container_nosy_difference_type
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: public sprout::detail::container_nosy_difference_type_impl<
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Container,
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sprout::detail::has_difference_type<Container>::value,
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sprout::detail::has_container_nosy_iterator<Container>::value
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>
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{};
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//
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// container_nosy_size_type
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//
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template<typename Container, bool HasSizeType, bool HasNosyIterator>
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struct container_nosy_size_type_impl {
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public:
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typedef std::size_t size_type;
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};
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template<typename Container, bool HasNosyIterator>
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struct container_nosy_size_type_impl<Container, true, HasNosyIterator> {
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public:
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typedef typename Container::size_type size_type;
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};
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template<typename Container>
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struct container_nosy_size_type_impl<Container, false, true> {
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public:
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typedef typename std::make_unsigned<
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typename std::iterator_traits<
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typename sprout::detail::container_nosy_iterator<Container>::iterator
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>::difference_type
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>::type size_type;
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};
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template<typename Container>
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struct container_nosy_size_type
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: public sprout::detail::container_nosy_size_type_impl<
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Container,
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sprout::detail::has_size_type<Container>::value,
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sprout::detail::has_container_nosy_iterator<Container>::value
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>
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{};
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//
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// container_nosy_pointer
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//
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template<typename Container, bool HasPointer, bool HasConstPointer, bool HasNosyValueType>
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struct container_nosy_pointer_impl {};
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template<typename Container, bool HasConstPointer, bool HasNosyValueType>
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struct container_nosy_pointer_impl<Container, true, HasConstPointer, HasNosyValueType> {
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public:
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typedef typename Container::pointer pointer;
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};
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template<typename Container, bool HasNosyValueType>
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struct container_nosy_pointer_impl<Container, false, true, HasNosyValueType> {
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public:
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typedef typename Container::const_pointer pointer;
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};
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template<typename Container>
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struct container_nosy_pointer_impl<Container, false, false, true> {
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public:
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typedef typename sprout::detail::container_nosy_value_type<Container>::value_type* pointer;
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};
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template<typename Container>
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struct container_nosy_pointer
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: public sprout::detail::container_nosy_pointer_impl<
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Container,
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sprout::detail::has_pointer<Container>::value,
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sprout::detail::has_const_pointer<Container>::value,
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sprout::detail::has_container_nosy_value_type<Container>::value
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>
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{};
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//
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// container_nosy_const_pointer
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//
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template<typename Container, bool HasConstPointer, bool HasPointer, bool HasNosyValueType>
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struct container_nosy_const_pointer_impl {};
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template<typename Container, bool HasPointer, bool HasNosyValueType>
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struct container_nosy_const_pointer_impl<Container, true, HasPointer, HasNosyValueType> {
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public:
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typedef typename Container::const_pointer const_pointer;
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};
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template<typename Container, bool HasNosyValueType>
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struct container_nosy_const_pointer_impl<Container, false, true, HasNosyValueType> {
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public:
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typedef typename Container::pointer const_pointer;
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};
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template<typename Container>
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struct container_nosy_const_pointer_impl<Container, false, false, true> {
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public:
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typedef typename sprout::detail::container_nosy_value_type<Container>::value_type const* const_pointer;
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};
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template<typename Container>
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struct container_nosy_const_pointer
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: public sprout::detail::container_nosy_const_pointer_impl<
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Container,
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sprout::detail::has_const_pointer<Container>::value,
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sprout::detail::has_pointer<Container>::value,
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sprout::detail::has_container_nosy_value_type<Container>::value
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>
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{};
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//
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// container_nosy_static_size
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//
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template<typename Container, bool HasStaticSize, bool IsArrayLike>
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struct container_nosy_static_size_impl {};
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template<typename Container, bool IsArrayLike>
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struct container_nosy_static_size_impl<Container, true, IsArrayLike>
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: public sprout::detail::inherit_if_static_size<Container>
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{};
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template<typename Container>
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struct container_nosy_static_size_impl<Container, false, true>
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: public sprout::detail::inherit_if_static_size<Container>
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{
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public:
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SPROUT_STATIC_CONSTEXPR typename sprout::detail::array_like_static_size<Container>::value_type static_size
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= sprout::detail::array_like_static_size<Container>::value
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;
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};
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template<typename Container>
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SPROUT_CONSTEXPR_OR_CONST typename sprout::detail::array_like_static_size<Container>::value_type
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sprout::detail::container_nosy_static_size_impl<Container, false, true>::static_size
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;
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template<typename Container>
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struct container_nosy_static_size
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: public sprout::detail::container_nosy_static_size_impl<
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Container,
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sprout::detail::has_static_size<Container>::value,
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sprout::detail::is_array_like<Container>::value
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>
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{};
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//
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// container_nosy_fixed_size
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//
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template<typename Container, bool HasContainerNosyStaticSize>
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struct container_nosy_fixed_size_impl {};
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template<typename Container>
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struct container_nosy_fixed_size_impl<Container, true> {
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public:
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static SPROUT_CONSTEXPR decltype(sprout::detail::container_nosy_static_size<Container>::static_size)
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fixed_size() SPROUT_NOEXCEPT {
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return sprout::detail::container_nosy_static_size<Container>::static_size;
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}
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};
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template<typename Container>
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struct container_nosy_fixed_size
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: public sprout::detail::container_nosy_fixed_size_impl<
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Container,
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sprout::detail::has_container_nosy_static_size<Container>::value
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>
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{};
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//
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// container_traits_default
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//
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template<typename Container>
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struct container_traits_default
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: public sprout::detail::container_nosy_value_type<Container>
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, public sprout::detail::container_nosy_iterator<Container>
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, public sprout::detail::container_nosy_const_iterator<Container>
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, public sprout::detail::container_nosy_reference<Container>
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, public sprout::detail::container_nosy_const_reference<Container>
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, public sprout::detail::container_nosy_size_type<Container>
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, public sprout::detail::container_nosy_difference_type<Container>
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, public sprout::detail::container_nosy_pointer<Container>
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, public sprout::detail::container_nosy_const_pointer<Container>
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, public sprout::detail::container_nosy_static_size<Container>
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, public sprout::detail::container_nosy_fixed_size<Container>
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{};
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template<typename T, std::size_t N>
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struct container_traits_default<T[N]> {
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public:
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typedef T value_type;
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#if SPROUT_USE_PTR_INDEX_ITERATOR_IMPLEMENTATION
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typedef sprout::ptr_index_iterator<T, true> iterator;
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typedef sprout::ptr_index_iterator<T const, true> const_iterator;
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#else
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typedef T* iterator;
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typedef T const* const_iterator;
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#endif
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typedef T& reference;
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typedef T const& const_reference;
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typedef std::size_t size_type;
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typedef std::ptrdiff_t difference_type;
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typedef T* pointer;
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typedef T const* const_pointer;
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public:
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SPROUT_STATIC_CONSTEXPR size_type static_size = N;
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public:
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static SPROUT_CONSTEXPR size_type
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fixed_size() SPROUT_NOEXCEPT {
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return static_size;
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}
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};
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template<typename T, std::size_t N>
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SPROUT_CONSTEXPR_OR_CONST typename sprout::detail::container_traits_default<T[N]>::size_type
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sprout::detail::container_traits_default<T[N]>::static_size;
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//
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// container_traits_const_default
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//
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template<typename Container>
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struct container_traits_const_default
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: public sprout::detail::inherit_if_value_type<sprout::container_traits<Container> >
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, public sprout::detail::inherit_if_const_iterator<sprout::container_traits<Container> >
|
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, public sprout::detail::inherit_if_const_reference<sprout::container_traits<Container> >
|
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, public sprout::detail::inherit_if_size_type<sprout::container_traits<Container> >
|
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, public sprout::detail::inherit_if_difference_type<sprout::container_traits<Container> >
|
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, public sprout::detail::inherit_if_const_pointer<sprout::container_traits<Container> >
|
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, public sprout::detail::inherit_if_static_size<sprout::container_traits<Container> >
|
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, public sprout::detail::container_nosy_fixed_size<sprout::container_traits<Container> >
|
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, public sprout::detail::inherit_iterator_if_const_iterator<sprout::container_traits<Container> >
|
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, public sprout::detail::inherit_reference_if_const_reference<sprout::container_traits<Container> >
|
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, public sprout::detail::inherit_pointer_if_const_pointer<sprout::container_traits<Container> >
|
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{};
|
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} // namespace detail
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|
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//
|
|
// container_traits
|
|
//
|
|
template<typename Container>
|
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struct container_traits
|
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: public sprout::detail::container_traits_default<Container>
|
|
{};
|
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template<typename Container>
|
|
struct container_traits<Container const>
|
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: public sprout::detail::container_traits_const_default<Container>
|
|
{};
|
|
|
|
template<typename T, std::size_t N>
|
|
struct container_traits<T[N]>
|
|
: public sprout::detail::container_traits_default<T[N]>
|
|
{};
|
|
template<typename T, std::size_t N>
|
|
struct container_traits<T const[N]>
|
|
: public sprout::detail::container_traits_const_default<T[N]>
|
|
{};
|
|
|
|
//
|
|
// container_traits_facade
|
|
//
|
|
template<typename Container>
|
|
struct container_traits_facade
|
|
: public sprout::detail::inherit_if_value_type<sprout::container_traits<Container> >
|
|
, public sprout::detail::inherit_if_iterator<sprout::container_traits<Container> >
|
|
, public sprout::detail::inherit_if_const_iterator<sprout::container_traits<Container> >
|
|
, public sprout::detail::inherit_if_reference<sprout::container_traits<Container> >
|
|
, public sprout::detail::inherit_if_const_reference<sprout::container_traits<Container> >
|
|
, public sprout::detail::inherit_if_size_type<sprout::container_traits<Container> >
|
|
, public sprout::detail::inherit_if_difference_type<sprout::container_traits<Container> >
|
|
, public sprout::detail::inherit_if_pointer<sprout::container_traits<Container> >
|
|
, public sprout::detail::inherit_if_const_pointer<sprout::container_traits<Container> >
|
|
, public sprout::detail::inherit_if_static_size<sprout::container_traits<Container> >
|
|
, public sprout::detail::container_nosy_fixed_size<sprout::container_traits<Container> >
|
|
{
|
|
#ifdef SPROUT_WORKAROUND_NEEDS_EXPLICIT_EMPTY_BASE_CLASS_CONSTRUCT
|
|
public:
|
|
SPROUT_CONSTEXPR container_traits_facade()
|
|
SPROUT_EXPLICIT_EMPTY_BASE_CLASS_CONSTRUCT(sprout::detail::inherit_if_value_type<sprout::container_traits<Container> >)
|
|
SPROUT_EXPLICIT_EMPTY_BASE_CLASS_CONSTRUCT_TRAIL(sprout::detail::inherit_if_iterator<sprout::container_traits<Container> >)
|
|
SPROUT_EXPLICIT_EMPTY_BASE_CLASS_CONSTRUCT_TRAIL(sprout::detail::inherit_if_const_iterator<sprout::container_traits<Container> >)
|
|
SPROUT_EXPLICIT_EMPTY_BASE_CLASS_CONSTRUCT_TRAIL(sprout::detail::inherit_if_reference<sprout::container_traits<Container> >)
|
|
SPROUT_EXPLICIT_EMPTY_BASE_CLASS_CONSTRUCT_TRAIL(sprout::detail::inherit_if_const_reference<sprout::container_traits<Container> >)
|
|
SPROUT_EXPLICIT_EMPTY_BASE_CLASS_CONSTRUCT_TRAIL(sprout::detail::inherit_if_size_type<sprout::container_traits<Container> >)
|
|
SPROUT_EXPLICIT_EMPTY_BASE_CLASS_CONSTRUCT_TRAIL(sprout::detail::inherit_if_difference_type<sprout::container_traits<Container> >)
|
|
SPROUT_EXPLICIT_EMPTY_BASE_CLASS_CONSTRUCT_TRAIL(sprout::detail::inherit_if_pointer<sprout::container_traits<Container> >)
|
|
SPROUT_EXPLICIT_EMPTY_BASE_CLASS_CONSTRUCT_TRAIL(sprout::detail::inherit_if_const_pointer<sprout::container_traits<Container> >)
|
|
SPROUT_EXPLICIT_EMPTY_BASE_CLASS_CONSTRUCT_TRAIL(sprout::detail::inherit_if_static_size<sprout::container_traits<Container> >)
|
|
SPROUT_EXPLICIT_EMPTY_BASE_CLASS_CONSTRUCT_TRAIL(sprout::detail::container_nosy_fixed_size<sprout::container_traits<Container> >)
|
|
SPROUT_EXPLICIT_EMPTY_BASE_CLASS_CONSTRUCT_BODY
|
|
#endif
|
|
};
|
|
|
|
//
|
|
// is_fixed_container
|
|
//
|
|
template<typename Container>
|
|
struct is_fixed_container
|
|
: public sprout::detail::has_static_size<sprout::container_traits<Container> >
|
|
{};
|
|
|
|
namespace detail {
|
|
//
|
|
// static_size_or_zero
|
|
//
|
|
template<typename Container, typename = void>
|
|
struct static_size_or_zero;
|
|
template<typename Container>
|
|
struct static_size_or_zero<
|
|
Container,
|
|
typename std::enable_if<sprout::is_fixed_container<sprout::container_traits<Container> >::value>::type
|
|
>
|
|
: public sprout::integral_constant<
|
|
typename sprout::container_traits<Container>::size_type,
|
|
sprout::container_traits<Container>::static_size
|
|
>
|
|
{};
|
|
template<typename Container>
|
|
struct static_size_or_zero<
|
|
Container,
|
|
typename std::enable_if<!sprout::is_fixed_container<sprout::container_traits<Container> >::value>::type
|
|
>
|
|
: public sprout::integral_constant<
|
|
typename sprout::container_traits<Container>::size_type,
|
|
0
|
|
>
|
|
{};
|
|
} // namespace sprout
|
|
} // namespace sprout
|
|
|
|
#endif // #ifndef SPROUT_CONTAINER_CONTAINER_TRAITS_HPP
|