# std::swap(std::unique_ptr)

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< cpp‎ | memory‎ | unique ptr

template< class T, class Deleter > void swap( unique_ptr<T,Deleter>& lhs, unique_ptr<T,Deleter>& rhs ) noexcept; |  | (since C++11)

Specializes the std::swap algorithm for std::unique_ptr. Swaps the pointers of `lhs` and `rhs`. Calls lhs.swap(rhs).

This function does not participate in overload resolution unless std::is_swappable<D>::value is true. | (since C++17)

### Parameters

lhs, rhs | - | smart pointers whose contents to swap

### Return value

(none)

### Complexity

Constant

### See also

swap | swaps the values of two objects (function template)
swap | swaps the contents (public member function)

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