std::any::swap
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Swap and type operations
Common vocabulary types
void swap( any& other ) noexcept;
(since C++17)
Swaps the content of two any objects.
[edit] Parameters
other
-
object to swap with
[edit] Example
Run this code
#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)); }
Output:
a = King b = Queen swap(a, b) a = Queen b = King