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

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Ranges library
Range adaptors
friend constexpr bool operator == ( const /*iterator*/ & x, const /*iterator*/ & y )
requires std:: equality_comparable < /*ziperator*/ < Const >> ;
(1) (since C++23)
friend constexpr auto operator <=> ( const /*iterator*/ & x, const /*iterator*/ & y )

requires ranges:: random_access_range < Base > &&

std:: three_way_comparable < /*ziperator*/ < Const >> ;
(2) (since C++23)

Compares the underlying iterators. Let inner_ denote the underlying iterator.

Equivalent to:

1) return x. inner_ == y. inner_ ;
2) return x. inner_ <=> y. inner_ ;

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

The < , <= , > , >= , and != operators are synthesized from operator <=> and operator == respectively.

Parameters

x, y - iterators to compare

Return value

The result of comparison

See also

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