The main documentation of the Initialized_Timer Procedure contains additional explanation of this code listing.
function Initialized_Timer (Timer) result(Initialized) ! Input variable. type(Timer_type), intent(in) :: Timer ! Timer to be checked. ! Output variable. type(logical) :: Initialized ! Initialized condition boolean. !~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ! Verify requirements - none. ! Set initialized boolean. Initialized = ASSOCIATED(Timer%Initialized) ! Verify guarantees - none. return end function Initialized_Timer