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

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C++
Ranges library
Range adaptors
std::ranges::slide_view
Member functions
Deduction guides
Iterator
Member functions
Non-member functions
operator+ (slide_view:: iterator )
operator- (slide_view:: iterator )
Sentinel
Member functions
Non-member functions
friend constexpr /*iterator*/ operator + ( const /*iterator*/ & i,

difference_type n )

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

const /*iterator*/ & i )

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

difference_type n )

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)

Performs iterator arithmetic.

1,2) Equivalent to: auto r = i ; r + = n ; return r ; .
3) Equivalent to: auto r = i ; r - = n ; return r ; .
4) Let current_ and last_ele_ be the underlying iterators to the begin and end of the sliding window, respectively. Equivalent to:
  • return x. last_ele_ - y. last_ele_ ; , if last_ele_ is present. Otherwise,
  • return x. current_ - y. current_ ; .

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

Parameters

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

Return value

1,2) An incremented iterator.
3) A decremented iterator.
4) A distance between given iterators.

Example

This section is incomplete
Reason: no example

See also

advances or decrements the underlying iterators
(public member function)
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