operator==,<,>,<=,>=,<=> (ranges::slide_view:: iterator )

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Ranges library
Range adaptors
friend constexpr bool operator == ( const /*iterator*/ & x, const /*iterator*/ & y ) ;
(1) (since C++23)
friend constexpr bool operator < ( const /*iterator*/ & x, const /*iterator*/ & y )
requires ranges:: random_access_range < Base > ;
(2) (since C++23)
friend constexpr bool operator > ( const /*iterator*/ & x, const /*iterator*/ & y )
requires ranges:: random_access_range < Base > ;
(3) (since C++23)
friend constexpr bool operator <= ( const /*iterator*/ & x, const /*iterator*/ & y )
requires ranges:: random_access_range < Base > ;
(4) (since C++23)
friend constexpr bool operator >= ( const /*iterator*/ & x, const /*iterator*/ & y )
requires ranges:: random_access_range < Base > ;
(5) (since C++23)
friend constexpr auto operator <=> ( const /*iterator*/ & x, const /*iterator*/ & y )

requires ranges:: random_access_range < Base > &&

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

Compares the underlying iterators.

Let current_ and last_ele_ be the underlying iterators to the begin and end of the sliding window, respectively.

1) Equivalent to:
  • return x. last_ele_ == y. last_ele_ ; , if last_ele_ is present. Otherwise,
  • return x. current_ == y. current_ ; .
2) Equivalent to return x. current_ < y. current_ ; .
3) Equivalent to return y < x ; .
4) Equivalent to return ! ( y < x ) ; .
5) Equivalent to return ! ( x < y ) ; .
6) Equivalent to 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 std::ranges::slide_view:: iterator <Const> is an associated class of the arguments.

The != operator is synthesized from operator== .

Parameters

x, y - iterators to compare

Return value

The result of comparison.

Example

See also

(C++23)
compares a sentinel with an iterator returned from slide_view::begin
(function)