std::swap(std::any)

 

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std::any

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swap(std::any)

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Defined in header <any>
void swap( any& lhs, any& rhs )noexcept;		(since C++17)

Overloads the std::swap algorithm for std::any. Swaps the content of two any objects by calling lhs.swap(rhs).

Parameters

lhs, rhs

-

objects to swap

Example

Run this code

#include <any>#include <print>#include <string>   int main(){std::any p =42, q =std::string{"Bishop"};std::println("p: {}, q: {}", std::any_cast<int>(p), std::any_cast<std::string&>(q));std::println("swap(p, q)");std::swap(p, q);std::println("p: {}, q: {}", std::any_cast<std::string&>(p), std::any_cast<int>(q));}

Output:

p: 42, q: Bishop swap(p, q) p: Bishop, q: 42

See also

swap	swaps two any objects (public member function)