std::swap_ranges

 

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Defined in header <algorithm>
template< class ForwardIterator1, class ForwardIterator2 > ForwardIterator2 swap_ranges( ForwardIterator1 first1,                               ForwardIterator1 last1,                               ForwardIterator2 first2 )

Exchanges elements between range [first1, last1) and another range starting at first2.

Parameters

first1, last1	-	the first range of elements to swap
first2	-	beginning of the second range of elements to swap

Return value

iterator to the element past the last element exchanged in the range beginning with first2.

Possible implementation

template<class ForwardIterator1, class ForwardIterator2> ForwardIterator1 swap_ranges(ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2) { while (first1 != last1) { std::iter_swap(first1++, first2++); } return first2; }

Complexity

linear in the distance between first and last

See also

iter_swap	swaps the elements pointed to by two iterators (function template)
swap	swaps the values of two objects (function template)