std::ranges::slide_view<V>::slide_view

 

C++

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自立实现与有宿主实现

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具名要求

功能特性测试宏 (C++20)

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概念库 (C++20)

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元编程库 (C++11)

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文件系统库 (C++17)

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执行控制库 (C++26)

技术规范

符号索引

外部库

 

范围库

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 std::from_range_t std::from_range (C++23)(C++23)         to (C++23)

悬垂迭代器处理 dangling borrowed_iterator_t borrowed_subrange_t

范围原语
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 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) sized-random-access-range (C++26)

视图
view_interface	subrange

范围工厂
empty_viewviews::empty	single_viewviews::single	basic_istream_viewviews::istream	iota_viewviews::iota views::indices (C++26)	repeat_viewviews::repeat (C++23)(C++23)

范围适配器
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 as_input_viewviews::as_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 std::generator (C++23)

范围适配器闭包对象 range_adaptor_closure (C++23)

范围适配器对象

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

 

std::ranges::slide_view

成员函数

slide_view::slide_view

slide_view::begin

slide_view::end

slide_view::size

slide_view::reserve_hint (C++26)

推导指引

迭代器

成员函数

slide_view::iterator::iterator

slide_view::iterator::operator*

slide_view::iterator::operator[]

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

非成员函数

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

operator+(slide_view::iterator) operator-(slide_view::iterator)

哨位

成员函数

slide_view::sentinel::sentinel

非成员函数

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

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

 

constexpr explicit slide_view( V base, ranges::range_difference_t<V> n );		(C++23 起)

构造 slide_view 并初始化底层数据成员：

• 使用 std::move(base) 移动构造底层视图 base_。
• "窗口大小" n_ 为 n。

参数

base	-	源视图
n	-	“滑窗”的大小

示例

Run this code

#include <algorithm>
#include <iostream>
#include <ranges>

int main()
{
    const auto source = {1, 2, 3, 4};

    auto slide = std::views::slide(source, 3);

    std::ranges::for_each(slide, [](std::ranges::viewable_range auto&& w)
    {
        std::cout << '[' << w[0] << ' ' << w[1] << ' ' << w[2] << "]\n";
    });
}

输出：

[1 2 3]
[2 3 4]