[stack.special]

# 23 Containers library [[containers]](./#containers)

## 23.6 Container adaptors [[container.adaptors]](container.adaptors#stack.special)

### 23.6.6 Class template stack [[stack]](stack#special)

#### 23.6.6.7 Specialized algorithms [stack.special]

[🔗](#lib:swap,stack)

`template<class T, class Container>
  constexpr void swap(stack<T, Container>& x, stack<T, Container>& y)
    noexcept(noexcept(x.swap(y)));
`

[1](#1)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/containers.tex#L16893)

*Constraints*: is_swappable_v<Container> is true[.](#1.sentence-1)

[2](#2)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/containers.tex#L16897)

*Effects*: As if by x.swap(y)[.](#2.sentence-1)