iter_swap(ranges::concat_view::iterator)

friend constexpr void iter_swap( const /*iterator*/& x, const /*iterator*/& y )
    noexcept( /* see description */ ) requires ( /* see description */ );

Swaps the objects pointed to by the underlying iterators of x and y. Equivalent to std::visit
(
    [&](constauto&it1,constauto&it2)
    {
        ifconstexpr(std::is_same_v<decltype(it1),decltype(it2)>)
            ranges::iter_swap(it1,it2);
        else
            ranges::swap(*x,*y);
    },
    x.it_ ,
    y.it_
);

The expression in the requires clause is equivalent to std::swappable_with<std::iter_reference_t</*iterator*/>,
                    std::iter_reference_t</*iterator*/>>&&
(...&&std::indirectly_swappable<ranges::iterator_t<maybe-const <Const,Views>>>) .

If x.it_ .valueless_by_exception()||y.it_ .valueless_by_exception() is true, the behavior is undefined.

This function is not visible to ordinary unqualified or qualified lookup, and can only be found by argument-dependent lookup when concat_view::iterator <Const> is an associated class of the arguments.

Parameters

Exceptions

Let its be a pack of lvalues, where each value is of the corresponding type in constranges::iterator_t<maybe-const <Const,Views>>.

noexcept(noexcept(ranges::swap(*x, *y)) && ... && noexcept(ranges::iter_swap(its, its)))

Example

See also