The main documentation of the Get_Version_Collected_Array Procedure contains additional explanation of this code listing.
function Get_Version_Collected_Array (CA) result(Version) ! Input variable. type(Collected_Array_type), intent(in) :: CA ! Variable to be queried. ! Output variable. type(integer) :: Version ! Version number. !~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ! Verify requirements. VERIFY(Valid_State(CA),5) ! CA is valid. ! Get the value. Version = CA%Version ! Verify guarantees - none. return end function Get_Version_Collected_Array