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

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C++
Ranges library
Range adaptors
std::ranges::concat_view
Member functions
Deduction guides
Iterator
Member functions
Non-member functions
operator== (concat_view:: iterator )
operator< (concat_view:: iterator )
operator> (concat_view:: iterator )
operator<= (concat_view:: iterator )
operator>= (concat_view:: iterator )
operator<=> (concat_view:: iterator )
friend constexpr bool operator ==
( const /*iterator*/ & x, std:: default_sentinel_t ) ;
(1) (since C++26)
friend constexpr bool operator ==

( const /*iterator*/ & x, const /*iterator*/ & y )
requires ( std:: equality_comparable < ranges:: iterator_t <

std:: conditional_t < Const, const Views, Views >>> && ... ) ;
(2) (since C++26)
friend constexpr bool operator <

( const /*iterator*/ & x, const /*iterator*/ & y )

requires /*all-random-access*/ < Const, Views... > ;
(3) (since C++26)
friend constexpr bool operator >

( const /*iterator*/ & x, const /*iterator*/ & y )

requires /*all-random-access*/ < Const, Views... > ;
(4) (since C++26)
friend constexpr bool operator <=

( const /*iterator*/ & x, const /*iterator*/ & y )

requires /*all-random-access*/ < Const, Views... > ;
(5) (since C++26)
friend constexpr bool operator >=

( const /*iterator*/ & x, const /*iterator*/ & y )

requires /*all-random-access*/ < Const, Views... > ;
(6) (since C++26)
friend constexpr auto operator <=>

( const /*iterator*/ & x, const /*iterator*/ & y )
requires ( /*all-random-access*/ < Const, Views... > &&
( std:: three_way_comparable < ranges:: iterator_t <

std:: conditional_t < Const, const Views, Views >>> && ... ) ) ;
(7) (since C++26)

Compares the iterator with another iterator or a sentinel.

1) Compares an iterator with a sentinel.
If x. it_  . valueless_by_exception ( ) is true , the behavior is undefined.
2-7) Compares two iterators. The != operator is synthesized from operator== .
If x. it_  . valueless_by_exception ( ) || y. it_  . valueless_by_exception ( ) is true , the behavior is undefined.

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

Parameters

x, y - iterators to compare

Return value

1)

x. it_  . index ( ) == ( sizeof... ( Views ) - 1 ) &&
x. get-iter  < sizeof... ( Views ) - 1 > ( ) == x. get-end  < sizeof... ( Views ) - 1 > ( )

2) x. it_ == y. it_
3) x. it_ < y. it_
4) x. it_ > y. it_
5) x. it_ <= y. it_
6) x. it_ >= y. it_
7) x. it_ <=> y. it_

Example

This section is incomplete
Reason: no example
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