std::any::swap

Since C++17

Swaps the content of two any objects.

# Declarations

void swap( any& other ) noexcept;

(since C++17)

# Parameters

other: object to swap with

# Example

#include <any>
#include <print>
#include <string>
#include <string_view>
 
int main()
{
    std::any a = std::string{"King"};
    std::any b = std::string_view{"Queen"};
    std::println("a = {}", std::any_cast<std::string&>(a));
    std::println("b = {}", std::any_cast<std::string_view&>(b));
    std::println("swap(a, b)");
    a.swap(b);
    std::println("a = {}", std::any_cast<std::string_view&>(a));
    std::println("b = {}", std::any_cast<std::string&>(b));
}