std::move_backward

 

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Defined in header <algorithm>
template< class BidirIt1, class BidirIt2 > BidirIt2 move_backward( BidirIt1 first, BidirIt1 last, BidirIt2 d_last );

Moves the elements from the range [first, last), to another range ending at d_last. The elements are moved in reverse order (the last element is moved first), but their relative order is preserved.

Parameters

first, last	-	the range of the elements to move
d_last	-	end of the destination range. If d_last is within [first, last), std::move must be used instead of std::move_backward.
Type requirements
- BidirIt1, BidirIt2 must meet the requirements of BidirectionalIterator.

Return value

Iterator in the destination range, pointing at the last element moved.

Complexity

Exactly last - first move assignments.

Possible implementation

template< class BidirIt1, class BidirIt2 > BidirIt2 move_backward(BidirIt1 first, BidirIt1 last, BidirIt2 d_last) { while (first != last) { *(--d_last) = std::move(*(--last)); } return d_last; }

See also

move (C++11)	moves a range of elements to a new location (function template)