[section:swap_ranges swap_ranges]

[heading Prototype]

``
template<class SinglePassRange1, class SinglePassRange2>
SinglePassRange2& swap_ranges(SinglePassRange1& rng1, SinglePassRange& rng2);
``

[heading Description]

`swap_ranges` swaps each element `x` in `rng1` with the corresponding element `y` in `rng2`.
Returns a reference to `rng2`.

[heading Definition]

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

[heading Requirements]

* `SinglePassRange1` is a model of the __single_pass_range__ Concept.
* `SinglePassRange1` is mutable.
* `SinglePassRange2` is a model of the __single_pass_range__ Concept.
* `SinglePassRange2` is mutable.

[heading Complexity]

Linear. Exactly `distance(rng1)` elements are swapped.

[endsect]