std::swap(std::pair)

 

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std::pair

Member functions

pair::pair

pair::operator=

pair::swap (C++11)

Non-member functions

make_pair

operator==operator!=operator<operator<=operator>operator>=operator<=> (until C++20)(until C++20)(until C++20)(until C++20)(until C++20)(C++20)

std::swap (C++11)

get (C++11)

Deduction guides(C++17)

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tuple_size (C++11)

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Defined in header <utility>
	(1)
template< class T1, class T2 > void swap( std::pair<T1,T2>& x, std::pair<T1,T2>& y ) noexcept(/* see below */);			(since C++11) (until C++20)
template< class T1, class T2 > constexpr void swap( std::pair<T1,T2>& x, std::pair<T1,T2>& y )     noexcept(/* see below */);			(since C++20)
template< class T1, class T2 > constexpr void swap( const std::pair<T1,T2>& x, const std::pair<T1,T2>& y )     noexcept(/* see below */);		(2)	(since C++23)

Swaps the contents of x and y. Equivalent to x.swap(y).

1) This overload participates in overload resolution only if std::is_swappable_v<first_type> && std::is_swappable_v<second_type> is true. 2) This overload participates in overload resolution only if std::is_swappable_v<const first_type> && std::is_swappable_v<const second_type> is true.

(since C++17)

Parameters

x, y

-

pairs whose contents to swap

Return value

(none)

Exceptions

noexcept specification:  

noexcept(noexcept(x.swap(y)))

See also

swap	swaps the values of two objects (function template)
std::swap(std::tuple) (C++11)	specializes the std::swap algorithm (function template)