std::ranges::cartesian_product_view<First, Vs...>::iterator<Const>::operator++,--,+=,-=

 

C++

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Named requirements

Feature test macros (C++20)

Language support library

Concepts library (C++20)

Diagnostics library

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Metaprogramming library (C++11)

General utilities library

Containers library

Iterators library

Ranges library (C++20)

Algorithms library

Strings library

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Numerics library

Date and time library

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Filesystem library (C++17)

Concurrency support library (C++11)

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Technical specifications

Symbols index

External libraries

 

Ranges library

Range access begin cbegin      end cend rbegin crbegin      rend crend size ssize      data cdata reserve_hint (C++26)         empty

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

Dangling iterator handling dangling borrowed_iterator_t borrowed_subrange_t

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)

Range concepts
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)

Views
view_interface	subrange

Range factories
empty_viewviews::empty	single_viewviews::single	basic_istream_viewviews::istream	iota_viewviews::iota views::indices (C++26)	repeat_viewviews::repeat (C++23)(C++23)

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 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)

Range generators std::generator (C++23)

Range adaptor closure objects range_adaptor_closure (C++23)

Range adaptor objects

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

 

std::ranges::cartesian_product_view

Member functions

cartesian_product_view::cartesian_product_view

cartesian_product_view::begin

cartesian_product_view::end

cartesian_product_view::size

Deduction guides

Iterator

Member functions

cartesian_product_view::iterator::iterator

cartesian_product_view::iterator::operator*

cartesian_product_view::iterator::operator[]

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

cartesian_product_view::iterator::next

cartesian_product_view::iterator::prev

cartesian_product_view::iterator::distance_from

Non-member functions

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

operator+(cartesian_product_view::iterator) operator-(cartesian_product_view::iterator)

iter_move(cartesian_product_view::iterator)

iter_swap(cartesian_product_view::iterator)

 

constexpr /*iterator*/& operator++();	(1)	(since C++23)
constexpr void operator++( int );	(2)	(since C++23)
constexpr /*iterator*/ operator++( int ) requires ranges::forward_range</*maybe-const*/<Const, First>>;	(3)	(since C++23)
constexpr /*iterator*/& operator--() requires /*cartesian-product-is-bidirectional*/<Const, First, Vs...>;	(4)	(since C++23)
constexpr /*iterator*/ operator--( int ) requires /*cartesian-product-is-bidirectional*/<Const, First, Vs...>;	(5)	(since C++23)
constexpr /*iterator*/& operator+=( difference_type n ) requires /*cartesian-product-is-random-access*/<Const, First, Vs...>;	(6)	(since C++23)
constexpr /*iterator*/& operator-=( difference_type n ) requires /*cartesian-product-is-random-access*/<Const, First, Vs...>;	(7)	(since C++23)

Increments or decrements the iterator.

Let current_ denote the underlying tuple of iterators and parent_ denote the underlying pointer to cartesian_product_view.

1) Equivalent to next(); return *this;

2) Equivalent to ++*this;

3) Equivalent to auto tmp = *this; ++*this; return tmp;

4) Equivalent to prev(); return *this;

5) Equivalent to auto tmp = *this; --*this; return tmp;

6) Sets the value of *this to ret, where ret is:

• if n > 0, the value of *this provided that next been called n times. Otherwise,
• if n < 0, the value of *this provided that prev been called -n times. Otherwise,
• the value of *this before the call.

The behavior is undefined if n is not in the range [ranges::distance(*this, ranges::begin(*parent_)), ranges::distance(*this, ranges::end(*parent_))).

7) Equivalent to *this += -n; return *this;.

Parameters

n

-

position relative to current location

Return value

1,4,6,7) *this

2) (none)

3,5) a copy of *this that was made before the change.

Complexity

6) Constant.

See also

operator+operator- (C++23)

performs iterator arithmetic (function)