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iter_swap(ranges::transform_view::iterator)

From cppreference.com
 
 
 
 
friend constexpr void iter_swap( const /*iterator*/& x, const /*iterator*/& y )

  noexcept(/* see below */)

  requires std::indirectly_swappable<ranges::iterator_t<Base>>;
(since C++20)

Swap the values of the elements the underlying iterators are pointing to.

Equivalent to ranges::iter_swap(x.current_, y.current_), where current_ denotes the underlying iterator.

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

Contents

[edit] Parameters

x, y - iterators to the elements to swap

[edit] Return value

(none)

[edit] Exceptions

noexcept specification:  
noexcept(noexcept(ranges::iter_swap(x.current_, y.current_)))

[edit] Notes

The effect is different from swap(*x, *y), which swaps the transformed elements.

[edit] Example