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

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Ranges library
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(C++23)

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(until C++23)(C++23)


 
 
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.

[edit] Parameters

x, y - iterators to compare

[edit] Return value

The result of comparison

[edit] See also

compares a sentinel with an iterator returned from zip_transform_view::begin
(function) [edit]