// Extern Declaration (original form)
pub fn os_task_init(
  t:    *mut os_task,
  name: *const c_char,
  func: os_task_func_t,
  ...);

// (1) Wrapper Declaration Form
pub fn task_init(
  t:    Out<os_task>,
  name: &Strn,
  func: os_task_func_t,
  ...);

// (2) Validation Statement Form
Strn::validate_bytestr(name.bytestr);

// (3) Call Expression Form
os_task_init(
  t as *mut os_task,
  name.bytestr.as_ptr() as *const c_char,
  func as os_task_func_t,
  ...);