#include "lluuid.h" #includeIn this example, we create an LLUUID object with the value "00000000-0000-0000-0000-000000000123" and then use the notNull method to determine if it is null or not. Since it is not null, the output will be "my_uuid is not null". The LLUUID class is part of the Second Life Viewer C++ library, which is used for developing applications and tools related to the Second Life virtual world.int main() { LLUUID my_uuid("00000000-0000-0000-0000-000000000123"); if (my_uuid.notNull()) { std::cout << "my_uuid is not null" << std::endl; } else { std::cout << "my_uuid is null" << std::endl; } return 0; }