#include <SFML/System/String.hpp> #include <type_traits> static_assert(std::is_copy_constructible_v<sf::String>); static_assert(std::is_copy_assignable_v<sf::String>); static_assert(std::is_nothrow_move_constructible_v<sf::String>); static_assert(std::is_nothrow_move_assignable_v<sf::String>);