std::ranges::join_with_view<V,Pattern>::begin

 

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符号索引

外部库

 

范围库 (Ranges library)

范围访问 begin cbegin   end cend rbegin crbegin   rend crend size ssize   data cdata reserve_hint (C++26)   empty

范围转换 (Range conversions) std::from_range_t std::from_range (C++23)(C++23)     to (C++23)

悬空迭代器处理 (Dangling iterator handling) dangling borrowed_iterator_t borrowed_subrange_t

范围原语 (Range primitives)
range_size_trange_difference_trange_value_t elements_of (C++23)	iterator_tconst_iterator_tsentinel_tconst_sentinel_t (C++23)(C++23)	range_reference_trange_const_reference_trange_rvalue_reference_trange_common_reference_t (C++23)

范围概念 (Range concepts)
range borrowed_range    common_range	sized_range viewable_range    view	input_range output_range forward_range	bidirectional_range    random_access_range contiguous_range	approximately_sized_range (C++26) constant_range (C++23)

视图
view_interface	subrange

范围工厂 (Range factories)
empty_viewviews::empty	single_viewviews::single	basic_istream_viewviews::istream	iota_viewviews::iota	repeat_viewviews::repeat (C++23)(C++23)

范围适配器 (Range adaptors)
views::all_tviews::all as_rvalue_viewviews::as_rvalue (C++23)(C++23)   filter_viewviews::filter transform_viewviews::transform take_viewviews::take take_while_viewviews::take_while common_viewviews::common views::counted to_input_viewviews::to_input (C++26)(C++26)	ref_view drop_viewviews::drop drop_while_viewviews::drop_while lazy_split_viewviews::lazy_split split_viewviews::split join_viewviews::join join_with_viewviews::join_with (C++23)(C++23)   concat_viewviews::concat (C++26)(C++26) cache_latest_viewviews::cache_latest (C++26)(C++26)	owning_view reverse_viewviews::reverse as_const_viewviews::as_const (C++23)(C++23) elements_viewviews::elements keys_viewviews::keys values_viewviews::values enumerate_viewviews::enumerate (C++23)(C++23) zip_viewviews::zip (C++23)(C++23) zip_transform_viewviews::zip_transform (C++23)(C++23)	adjacent_viewviews::adjacent (C++23)(C++23) views::pairwise (C++23) adjacent_transform_viewviews::adjacent_transform (C++23)(C++23) views::pairwise_transform (C++23) chunk_viewviews::chunk (C++23)(C++23) slide_viewviews::slide (C++23)(C++23) chunk_by_viewviews::chunk_by (C++23)(C++23) stride_viewviews::stride (C++23)(C++23) cartesian_product_viewviews::cartesian_product (C++23)(C++23)

范围生成器 (Range generators) std::generator (C++23)

范围适配器闭包对象 (Range adaptor closure objects) range_adaptor_closure (C++23)

范围适配器对象 (Range adaptor objects)

辅助项 (Helper items)
copyable-box movable-box (直到 C++23)  (C++23)	simple-view non-propagating-cache

 

std::ranges::join_with_view

成员函数

join_with_view::join_with_view

join_with_view::base

join_with_view::begin

join_with_view::end

推导指引

迭代器 (Iterator)

成员函数

join_with_view::iterator::iterator

join_with_view::iterator::operator*

join_with_view::iterator::operator++ join_with_view::iterator::operator++(int) join_with_view::iterator::operator-- join_with_view::iterator::operator--(int)

非成员函数

operator==(join_with_view::iterator) (C++23)

iter_move(join_with_view::iterator) (C++23)

iter_swap(join_with_view::iterator) (C++23)

哨兵 (Sentinel)

join_with_view::sentinel::sentinel

operator==(join_with_view::sentinel) (C++23)

 

constexpr auto begin();	(1)	(C++23 起)
constexpr auto begin() const     requires ranges::forward_range<const V> &&              ranges::forward_range<const Pattern> &&              std::is_reference_v<ranges::range_reference_t<const V>> &&              ranges::input_range<ranges::range_reference_t<const V>> &&              /*concatable*/<ranges::range_reference_t<const V>,                             const Pattern>;	(2)	(C++23 起)

返回一个指向 join_with_view 开头的迭代器。

1) 返回一个可变迭代器或 const 迭代器。

• 若 V 建模 forward_range，等价于 constexpr bool use_const =
      simple-view <V> && std::is_reference_v<InnerRng > && simple-view <Pattern>;
  return iterator <use_const>{*this, ranges::begin(base_)};。
• 否则，等价于 outer_it_ = ranges::begin(base_);
  return iterator <false>{*this};。

2) 返回一个 const 迭代器。

关于 concatable 的定义，见 std::ranges::concat_view。

返回值

1) 如上所述。

2) iterator <true>{*this, ranges::begin(base_)}。

参阅

end	返回一个迭代器或一个哨兵到末尾 (公开成员函数)
ranges::begin (C++20)	返回指向范围开头的迭代器 (自定义点对象)