operator+,- (ranges::chunk_view:: iterator )

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C++
Ranges library
Range adaptors
std::ranges::chunk_view
Member functions
Classes for input_range s
Deduction guides
outer-iterator
outer-iterator ::value_type
inner-iterator
friend constexpr /*iterator*/ operator + ( const /*iterator*/ & i,

difference_type pos )

requires ranges:: random_access_range < Base > ;
(1) (since C++23)
friend constexpr /*iterator*/ operator + ( difference_type pos,

const /*iterator*/ & i )

requires ranges:: random_access_range < Base > ;
(2) (since C++23)
friend constexpr /*iterator*/ operator - ( const /*iterator*/ & i,

difference_type pos )

requires ranges:: random_access_range < Base > ;
(3) (since C++23)
friend constexpr difference_type operator - ( const /*iterator*/ & i,

const /*iterator*/ & j )
requires std:: sized_sentinel_for < ranges:: iterator_t < Base > ,

ranges:: iterator_t < Base >> ;
(4) (since C++23)
friend constexpr difference_type operator - ( std:: default_sentinel_t ,

const /*iterator*/ & i )
requires std:: sized_sentinel_for < ranges:: sentinel_t < Base > ,

ranges:: iterator_t < Base >> ;
(5) (since C++23)
friend constexpr difference_type operator - ( const /*iterator*/ & i,

std:: default_sentinel_t )
requires std:: sized_sentinel_for < ranges:: sentinel_t < Base > ,

ranges:: iterator_t < Base >> ;
(6) (since C++23)

Performs iterator arithmetic or calculates the distance.

Let current_ , end_ , n_ , and missing_ be the underlying data members .

Equivalent to:

1,2) auto r = i ; r + = pos ; return r ; .
3) auto r = i ; r - = pos ; return r ; .
4) return ( i. current_ - j. current_ + i. missing_ - j. missing_ ) / i. n_ ; .
5) return /*div-ceil*/ ( i. end_ - i. current_ , i. n_ ) ; .
6) return - ( y - x ) ; .

These functions are not visible to ordinary unqualified or qualified lookup , and can only be found by argument-dependent lookup when chunk_view:: iterator <Const> is an associated class of the arguments.

Parameters

i, j - the iterators
pos - the position relative to current location

Return value

1,2) An incremented iterator.
3) A decremented iterator.
4) A distance (in number of elements, i.e. chunks) between given iterators.
5,6) A distance (in number of elements) between given iterator and sentinel.

Example

This section is incomplete
Reason: no example

See also

advances or decrements the underlying iterator
(public member function)
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