std::ranges::chunk_by_view<V,Pred>::pred

 

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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)

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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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copyable-box movable-box (bis C++23)  (C++23)	simple-view non-propagating-cache

 

std::ranges::chunk_by_view

Memberfunktionen

chunk_by_view::chunk_by_view

chunk_by_view::base

chunk_by_view::pred

chunk_by_view::begin

chunk_by_view::end

chunk_by_view::find_next

chunk_by_view::find_prev

Deduction Guides

Iterator

chunk_by_view::iterator::iterator

chunk_by_view::iterator::operator*

chunk_by_view::iterator::operator++ chunk_by_view::iterator::operator++(int) chunk_by_view::iterator::operator-- chunk_by_view::iterator::operator--(int)

operator==(chunk_by_view::iterator)

 

constexpr const Pred& pred() const;		(seit C++23)

Gibt eine Referenz auf das enthaltene Pred-Objekt zurück. Äquivalent zu return *pred_;.

Das Verhalten ist undefiniert, wenn pred_ keinen Wert enthält.

Parameter

(keine)

Rückgabewert

Eine Referenz auf das enthaltene Pred-Objekt.

Beispiel

Führen Sie diesen Code aus

#include <cassert>
#include <concepts>
#include <functional>
#include <initializer_list>
#include <ranges>
 
int main()
{
    const auto v = {1, 1, 2, 2, 1, 1, 1};
    auto chunks = v | std::views::chunk_by(std::equal_to{});
    auto pred = chunks.pred();
    static_assert(std::same_as<decltype(pred), std::equal_to<>>);
    assert(pred(v.begin()[0], 1));
}