std::ranges::zip_view<Views...>::end

 

C++

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特性測試宏 (C++20)

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技術規範

符號索引

外部庫

 

範圍庫 (Ranges library)

範圍訪問 begin cbegin   end cend rbegin crbegin   rend crend size ssize   data cdata reserve_hint (C++26)   empty

範圍轉換 (Range conversions) std::from_range_t std::from_range (C++23)(C++23)     to (C++23)

懸空迭代器處理 (Dangling iterator handling) dangling borrowed_iterator_t borrowed_subrange_t

範圍原語 (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)

範圍概念 (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)

檢視
view_interface	subrange

範圍工廠 (Range factories)
empty_viewviews::empty	single_viewviews::single	basic_istream_viewviews::istream	iota_viewviews::iota	repeat_viewviews::repeat (C++23)(C++23)

範圍介面卡 (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)

範圍生成器 (Range generators) std::generator (C++23)

範圍介面卡閉包物件 (Range adaptor closure objects) range_adaptor_closure (C++23)

範圍介面卡物件 (Range adaptor objects)

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

 

std::ranges::zip_view

成員函式

zip_view::zip_view

zip_view::begin

zip_view::end

zip_view::size

推導指引

迭代器 (Iterator)

成員函式

zip_view::iterator::iterator

zip_view::iterator::operator*

zip_view::iterator::operator[]

zip_view::iterator::operator++ zip_view::iterator::operator++(int) zip_view::iterator::operator-- zip_view::iterator::operator--(int) zip_view::iterator::operator+= zip_view::iterator::operator-=

非成員函式

operator==(zip_view::iterator) operator<(zip_view::iterator) operator>(zip_view::iterator) operator<=(zip_view::iterator) operator>=(zip_view::iterator) operator<=>(zip_view::iterator)

operator+(zip_view::iterator) operator-(zip_view::iterator)

iter_move(zip_view::iterator)

iter_swap(zip_view::iterator)

哨兵 (Sentinel)

成員函式

zip_view::sentinel::sentinel

非成員函式

operator==(zip_view::iterator,zip_view::sentinel)

operator-(zip_view::iterator,zip_view::sentinel)

 

constexpr auto end()     requires (!(/*simple-view*/<Views> && ...);	(1)	(C++23 起)
constexpr auto end() const     requires (ranges::range<const Views> && ...);	(2)	(C++23 起)
template< class... Rs > concept /*zip-is-common*/ =     (sizeof...(Rs) == 1 && (ranges::common_range<Rs> && ...))     ||     (!(ranges::bidirectional_range<Rs> && ...) && (ranges::common_range<Rs> && ...))     ||     ((ranges::random_access_range<Rs> && ...) && (ranges::sized_range<Rs> && ...));	(3)	(僅作說明*)

返回一個迭代器或一個哨兵，它們與zip_view的結束迭代器比較相等。

令views_表示底層檢視元組。

1) 等價於

• return /*sentinel*/<false>(/*tuple-transform*/(ranges::end, views_));,

如果/*zip-is-common*/<Views...>評估為false。否則，

• return begin() + std::iter_difference_t</*iterator*/<false>>(size());,

如果(ranges::random_access_range<Views> && ...)評估為true。否則，

• return /*iterator*/<false>(/*tuple-transform*/(ranges::end, views_));.

2) 等價於

• return /*sentinel*/<true>(/*tuple-transform*/(ranges::end, views_));,

如果/*zip-is-common*/<const Views...>評估為false。否則，

• return begin() + std::iter_difference_t</*iterator*/<true>>(size());,

如果ranges::random_access_range<const Views> && ...評估為true。否則，

• return /*iterator*/<true>(/*tuple-transform*/(ranges::end, views_));.

引數

(無)

返回值

如上所述，表示zip_view末尾的迭代器或哨兵。

注意

ranges::range<const ranges::zip_view<Views...>>當且僅當Views...中的每個型別Vi都滿足const Vi滿足range時才被建模。

參閱

begin	返回指向起始的迭代器 (公共成員函式)
ranges::end (C++20)	返回指示範圍末尾的哨兵 (定製點物件)