friend constexpr void iter_swap( const /*iterator*/& x, const /*iterator*/& y )
noexcept (/* see description */)
requires (std::indirectly_swappable<
ranges::iterator_t</*maybe-const*/<Const, First>>> and ... and
std::indirectly_swappable<ranges::iterator_t</*maybe-const*/<Const, Vs>>>);
| (since C++23) |
Applies ranges::iter_swap to the stored underlying iterators. Formally, for every integer 0 ≤ i ≤ sizeof...(Vs), performs ranges::iter_swap(std::get<i>(x.current_), std::get<i>(y.current_)), where current_ is the underlying tuple of iterators.
This function is not visible to ordinary unqualified or qualified lookup, and can only be found by argument-dependent lookup when cartesian_product_view::iterator<Const> is an associated class of the arguments.
| x, y | - | iterators to the elements to swap |
(none).
The exception specification is equivalent to the logical AND of the expression noexcept(ranges::iter_swap(std::get<i>(x.current_), std::get<i>(y.current_))) for every integer 0 ≤ i ≤ sizeof...(Vs).
|
(C++20) | swaps the values referenced by two dereferenceable objects (customization point object) |
| swaps the elements pointed to by two iterators (function template) |
© cppreference.com
Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.
https://en.cppreference.com/w/cpp/ranges/cartesian_product_view/iterator/iter_swap