[section:rotate_copy rotate_copy]

[heading Prototype]

``
template<class ForwardRange, class OutputIterator>
OutputIterator rotate_copy(
    const ForwardRange& rng,
    typename range_iterator<ForwardRange>::type middle,
    OutputIterator out);
``

[heading Description]

`rotate_copy` rotates the elements in a range. It copies the two ranges `[begin(rng), middle)` and `[middle, end(rng))` to `out`.

[heading Definition]

Defined in the header file `boost/range/algorithm/rotate_copy.hpp`

[heading Requirements]

* `ForwardRange` is a model of the __forward_range__ Concept.
* `ForwardRange` is mutable.
* `OutputIterator` is a model of the `OutputIteratorConcept`.

[heading Precondition:]

* `[begin(rng), middle)` is a valid range.
* `[middle, end(rng))` is a valid range.

[heading Complexity]

Linear. Exactly `distance(rng)` elements are copied.

[endsect]