W3cubDocs

/C++

std::swap(std::tuple) 

template< class... Types >
void swap( tuple<Types...>& lhs, tuple<Types...>& rhs ) noexcept(/* see below */);
 (since C++11)
(until C++20) 
template< class... Types >
constexpr void
    swap( tuple<Types...>& lhs, tuple<Types...>& rhs ) noexcept(/* see below */);
 (since C++20)

Swaps the contents of lhs and rhs. Equivalent to lhs.swap(rhs).

This function does not participate in overload resolution unless std::is_swappable_v<Ti> is true for all i from 0 to sizeof...(Types).

 (since C++17)

Parameters

lhs, rhs - tuples whose contents to swap

Return value

(none).

Exceptions

noexcept specification:
noexcept(noexcept(lhs.swap(rhs)))

See also

© cppreference.com
Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.
http://en.cppreference.com/w/cpp/utility/tuple/swap2