UUID_CLEAR(3) UUID_CLEAR(3) uuid_clear - reset value of UUID variable to the NULL value #include void uuid_clear(uuid_t uu); The uuid_clear() function sets the value of the supplied uuid variable uu to the NULL value. Theodore Y. Ts'o uuid(3), uuid_compare(3), uuid_copy(3), uuid_generate(3), uuid_is_null(3), uuid_parse(3), uuid_unparse(3) For bug reports, use the issue tracker . libuuid 2.15.1 util-linux . Linux Kernel Archive . util-linux 2.41 2025-03-29 UUID_CLEAR(3)