operator==,<,>,<=,>=,<=>(ranges::elements_view::iterator)
friend constexpr bool operator==( const /*iterator*/& x, const /*iterator*/& y ) requires std::equality_comparable<ranges::iterator_t<Base>>; |
(1) | (since C++20) |
friend constexpr bool operator<( const /*iterator*/& x, const /*iterator*/& y ) requires ranges::random_access_range<Base>; |
(2) | (since C++20) |
friend constexpr bool operator>( const /*iterator*/& x, const /*iterator*/& y ) requires ranges::random_access_range<Base>; |
(3) | (since C++20) |
friend constexpr bool operator<=( const /*iterator*/& x, const /*iterator*/& y ) requires ranges::random_access_range<Base>; |
(4) | (since C++20) |
friend constexpr bool operator>=( const /*iterator*/& x, const /*iterator*/& y ) requires ranges::random_access_range<Base>; |
(5) | (since C++20) |
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++20) |
Compares the underlying iterators.
1) Equivalent to
return x.base() == y.base();.
2) Equivalent to
return x.base() < y.base();.
3) Equivalent to
return y < x;.
4) Equivalent to
return !(y < x);.
5) Equivalent to
return !(x < y);.
6) Equivalent to
return x.base() <=> y.base();.
These functions are not visible to ordinary unqualified or qualified lookup, and can only be found by argument-dependent lookup when std::ranges::elements_view::iterator<Const> is an associated class of the arguments.
The != operator is synthesized from operator==.
Parameters
| x, y | - | iterators to compare |
Return value
Result of comparison.
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https://en.cppreference.com/w/cpp/ranges/elements_view/iterator/operator_cmp
