std::ranges::stride_view<V>::iterator<Const>::operator[]

 

C++

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语言

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标准库头文件

命名要求

功能测试宏 (C++20)

语言支持库

概念库 (C++20)

元编程库 (C++11)

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字符串库

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范围库 (C++20)

算法库

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本地化库

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文件系统库 (C++17)

正则表达式库 (C++11)

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执行支持库 (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 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    sized_range	common_range view viewable_range	input_range output_range forward_range	bidirectional_range    random_access_range contiguous_range	constant_range (C++23)

视图
view_interface	subrange

范围工厂
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
views::all_tviews::all ref_view owning_view as_rvalue_viewviews::as_rvalue (C++23)(C++23)   filter_viewviews::filter transform_viewviews::transform take_viewviews::take take_while_viewviews::take_while concat_viewviews::concat (C++26)(C++26)	drop_viewviews::drop drop_while_viewviews::drop_while join_viewviews::join join_with_viewviews::join_with (C++23)(C++23)   lazy_split_viewviews::lazy_split split_viewviews::split views::counted common_viewviews::common	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 (直到 C++23)  (C++23)	simple-view non-propagating-cache

 

std::ranges::stride_view

成员函数

stride_view::stride_view

stride_view::base

stride_view::stride

stride_view::begin

stride_view::end

stride_view::size

推断指南

迭代器

成员函数

stride_view::iterator::iterator

stride_view::iterator::base

stride_view::iterator::operator*

stride_view::iterator::operator[]

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

非成员函数

operator==(std::default_sentinel_t) operator==(stride_view::iterator) operator<(stride_view::iterator) operator>(stride_view::iterator) operator<=(stride_view::iterator) operator>=(stride_view::iterator) operator<=>(stride_view::iterator)

operator+(stride_view::iterator) operator-(stride_view::iterator)

iter_move(stride_view::iterator)

iter_swap(stride_view::iterator)

 

constexpr decltype(auto) operator[]( difference_type n ) const     requires ranges::random_access_range<Base>		(自 C++23 起)

返回指定相对位置处的元素。

等效于：return *(*this + n);.

参数

n

-

相对于当前位置的位置

返回值

相对于当前位置偏移 n 处的元素。

示例

运行此代码

#include <ranges>
 
int main()
{
    constexpr static auto v = {'a', 'b', 'c', 'd', 'e'};
    constexpr auto view{v | std::views::stride(2)};
    constexpr auto iter{view.begin() + 1};
    static_assert(*iter == 'c');
    static_assert(iter[0] == 'c');
    static_assert(iter[1] == 'e');
}

另请参阅

operator* (C++23)

访问元素 (公共成员函数)