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# std::swap(std::set)

From cppreference.com
< cpp‎ | container‎ | set

[edit template]

template< class Key, class Compare, class Alloc > void swap( set<Key,Compare,Alloc>& lhs, set<Key,Compare,Alloc>& rhs ); |  | (until C++17)
template< class Key, class Compare, class Alloc > void swap( set<Key,Compare,Alloc>& lhs, set<Key,Compare,Alloc>& rhs ) noexcept(/* see below */); |  | (since C++17)

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

### [edit] Parameters

lhs, rhs | - | containers whose contents to swap

### [edit] Return value

(none)

### [edit] Complexity

Constant.

### [edit] Exceptions

`noexcept` specification: noexcept(noexcept(lhs.swap(rhs))) | (since C++17)

### [edit] See also

swap | swaps the contents (public member function) [edit]

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Category:

- conditionally noexcept