std::ranges::iota_view 的推導指南

 

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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)

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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

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empty_viewviews::empty	single_viewviews::single	basic_istream_viewviews::istream	iota_viewviews::iota	repeat_viewviews::repeat (C++23)(C++23)

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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)

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

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

 

std::ranges::iota_view

成員函式

iota_view::iota_view

iota_view::begin

iota_view::end

iota_view::empty

iota_view::size

推導指引

巢狀類

迭代器 (Iterator)

輔助概念

decrementable

advanceable

成員型別

成員函式

iota_view::iterator::iterator

iota_view::iterator::operator*

iota_view::iterator::operator[]

iota_view::iterator::operator++ iota_view::iterator::operator++(int)

iota_view::iterator::operator-- iota_view::iterator::operator--(int)

iota_view::iterator::operator+=

iota_view::iterator::operator-=

非成員函式

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

operator+(iota_view::iterator)

operator-(iota_view::iterator)

哨兵 (Sentinel)

成員函式

iota_view::sentinel::sentinel

非成員函式

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

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

 

定義於標頭檔案 <ranges>
template< class W, class Bound >     requires (!/*is-integer-like*/<W> ||               !/*is-integer-like*/<Bound> ||               /*is-signed-integer-like*/<W> == /*is-signed-integer-like*/<Bound>) iota_view( W, Bound ) -> iota_view<W, Bound>;		(C++20 起)

此推導指南為iota_view提供，允許從初始值和邊界值進行推導。

關於/*is-integer-like*/和/*is-signed-integer-like*/的定義，請參閱is-integer-like 。

請注意，此指南透過防止符號不匹配引起的錯誤來保護自身，例如views::iota(0, v.size())，其中​0​是帶符號的，而v.size()是無符號的。

示例

執行此程式碼

#include <cassert>
#include <ranges>
 
int main()
{
    auto io = std::ranges::iota_view(1L, 7L); // deduces W and Bound as “long”
    assert(io.front() == 1L and io.back() == 6L);
}