std::ranges::chunk_view<V>::inner-iterator

 

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符號索引

外部庫

 

範圍庫 (Ranges library)

範圍訪問 起始 cbegin   末尾 cend rbegin crbegin   rend crend 大小 ssize   data cdata reserve_hint (C++26)   空

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) 懸垂 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)
範圍 可借範圍    common_range	有大小範圍 可檢視範圍    檢視	輸入範圍 輸出範圍 向前範圍	雙向範圍    隨機訪問範圍 連續範圍	近似有大小範圍 (C++26) 常範圍 (C++23)

檢視
view_interface	子範圍

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::chunk_view

成員函式
chunk_view::chunk_view
chunk_view::base
chunk_view::begin
chunk_view::end
chunk_view::size
input_range 的類 推導指引 outer-iterator chunk_view::outer-iterator::outer-iterator chunk_view::outer-iterator::operator= chunk_view::outer-iterator::operator* chunk_view::outer-iterator::operator++ chunk_view::outer-iterator::operator++(int) operator==(chunk_view::outer-iterator) operator-(chunk_view::outer-iterator) outer-iterator::value_type chunk_view::outer-iterator::value_type::value_type   chunk_view::outer-iterator::value_type::begin chunk_view::outer-iterator::value_type::end chunk_view::outer-iterator::value_type::size inner-iterator chunk_view::inner-iterator::inner-iterator chunk_view::inner-iterator::operator= chunk_view::inner-iterator::base chunk_view::inner-iterator::operator* chunk_view::inner-iterator::operator++ chunk_view::inner-iterator::operator++(int) operator==(chunk_view::inner-iterator) operator-(chunk_view::inner-iterator) iter_move(chunk_view::inner-iterator) iter_swap(chunk_view::inner-iterator)	的類模板 forward_range 迭代器 chunk_view::iterator::iterator chunk_view::iterator::base chunk_view::iterator::operator* chunk_view::iterator::operator[] chunk_view::iterator::operator++ chunk_view::iterator::operator++(int) chunk_view::iterator::operator-- chunk_view::iterator::operator--(int) chunk_view::iterator::operator+= chunk_view::iterator::operator-= operator==(chunk_view::iterator) operator<(chunk_view::iterator) operator>(chunk_view::iterator) operator<=(chunk_view::iterator) operator>=(chunk_view::iterator) operator<=>(chunk_view::iterator) operator+(chunk_view::iterator) operator-(chunk_view::iterator)

 

class /*inner-iterator*/		(C++23 起) (僅作說明*)

若 V 建模 input_range，則為 chunk_view::outer-iterator::value_type::begin 的返回型別。

成員型別

成員型別	定義
iterator_concept	std::input_iterator_tag
difference_type	ranges::range_difference_t<V>
value_type	ranges::range_value_t<V>

資料成員

成員物件	定義
parent_ (私有)	一個指向型別為 ranges::chunk_view* 的“父物件”的指標。 (僅用於闡釋的成員物件*)

成員函式

(建構函式) (C++23)	構造一個迭代器 (公開成員函式)
operator= (C++23)	移動賦值另一個迭代器 (公開成員函式)
base (C++23)	返回指向當前元素的迭代器 (公開成員函式)
operator* (C++23)	訪問元素 (公開成員函式)
operator++ (C++23)	自增迭代器 (公開成員函式)

非成員函式

operator== (C++23)	將迭代器與 預設哨位比較 (函式)
operator- (C++23)	計算剩餘元素的數量 (函式)
iter_move (C++23)	將底層迭代器解引用的結果轉換為其關聯的右值引用型別 (函式)
iter_swap (C++23)	交換兩個底層迭代器指向的物件 (函式)

示例

執行此程式碼

#include <iostream>
#include <iterator>
#include <ranges>
#include <sstream>
 
int main()
{
    auto letters = std::istringstream{"ABCDEFGHIJK"};
 
    auto chunks = std::ranges::istream_view<char>(letters)
                | std::views::chunk(4);
 
    for (auto chunk : chunks)
    {
        // chunk is an object of type chunk_view::outer_iterator::value_type
        std::cout << '[';
        for (auto inner_iter = chunk.begin(); inner_iter != std::default_sentinel;
             ++inner_iter)
            std::cout << *inner_iter;
        std::cout << "] ";
    }
    std::cout << '\n';
}

輸出

[ABCD] [EFGH] [IJK]

引用

• C++23 標準 (ISO/IEC 14882:2024)

• 26.7.28.5 類 chunk_view::inner-iterator [range.chunk.inner.iter]