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iter_swap(std::common_iterator)

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C++
 
Iterator library
Iterator concepts
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(C++20)
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(C++17)
 
std::common_iterator
 
template< std::indirectly_swappable<I> I2, class S2 >

friend constexpr void
    iter_swap( const common_iterator& x,

               const std::common_iterator<I2, S2>& y ) noexcept(/*see below*/);
 (since C++20)

Swaps the objects pointed to by two underlying iterators. The behavior is undefined if x does not hold an I object or y does not hold an I2 object (i.e. at least one of x and y does not hold an iterator).

The function body is equivalent to ranges::iter_swap(std::get<I>(x.var), std::get<I2>(y.var)).

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

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