# std::array<T,N>::swap

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< cpp‎ | container‎ | array

void swap( array& other ) noexcept(/* see below */); |  | (since C++11) (until C++20)
constexpr void swap( array& other ) noexcept(/* see below */); |  | (since C++20)

Exchanges the contents of the container with those of `other`. Does not cause iterators and references to associate with the other container.

### Parameters

other | - | container to exchange the contents with

### Return value

(none)

### Exceptions

`noexcept` specification: noexcept(noexcept(swap(std::declval<T&>(), std::declval<T&>()))) In the expression above, the identifier `swap` is looked up in the same manner as the one used by the C++17 std::is_nothrow_swappable trait. | (until C++17)
`noexcept` specification: noexcept(std::is_nothrow_swappable_v<T>) | (since C++17)

For zero-sized arrays,
`noexcept` specification:
noexcept

### Complexity

Linear in size of the container.

### Defect reports

The following behavior-changing defect reports were applied retroactively to previously published C++ standards.

DR | Applied to | Behavior as published | Correct behavior
--- | --- | --- | ---
LWG 2456 | C++11 | the `noexcept` specification is ill-formed | made to work

### See also

std::swap(std::array) (C++11) | specializes the std::swap algorithm (function template)

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