operator==,<=>(ranges::zip_view::iterator)
From cppreference.com
| friend constexpr bool operator==( const /*iterator*/& x, const /*iterator*/& y ) requires (std::equality_comparable< |
(1) | (since C++23) |
| friend constexpr auto operator<=>( const /*iterator*/& x, const /*iterator*/& y ) requires ranges::random_access_range<Base>; |
(2) | (since C++23) |
Compares the underlying iterators.
Let current_ be the underlying tuple-like object of iterators to elements of adapted views.
1) Returns:
- x.current_ == y.current_ if /*all-bidirectional*/<Const, Views...> is true.
- Otherwise, true if there exists an integer 0 <= i < sizeof...(Views) such that bool(std::get<i>(x.current_) == std::get<i>(y.current_)) is true.
- Otherwise, false.
2) Equivalent to return x.current_ <=> y.current_;.
This function is not visible to ordinary unqualified or qualified lookup, and can only be found by argument-dependent lookup when std::ranges::zip_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_view::begin (function) |