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

 

C++

Language

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Named requirements

Language support library

Concepts library (C++20)

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Regular expressions library (C++11)

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Technical Specifications

 

Containers library

array (C++11)

vector

deque

forward_list (C++11)

list

set

multiset

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multimap

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unordered_multiset (C++11)

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unordered_multimap (C++11)

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std::array

Member functions

Element access

array::at

array::operator[]

array::front

array::back

array::data

Iterators

array::beginarray::cbegin

array::endarray::cend

array::rbeginarray::crbegin

array::rendarray::crend

Capacity

array::empty

array::size

array::max_size

Modifiers

array::fill

array::swap

Non-member functions

get

swap

operator==operator!=operator<operator>operator<=operator>=

Helper classes

tuple_size

tuple_element

Deduction guides(C++17)

 

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)