Re: null array constant in Ada 83

["Frank J. Lhota" <FrankLho.NOSPAM@rcn.com>]

Martin Krischik wrote:
> Hi,
> 
> maintaining old code is such a great fun. Anybody know what goes where
> the 4 dots are (an appropriate N_Sel_List_Entry is declared).
> 
>    subtype T_Sel_Entries is Integer range 0 ..
> Selection_Types.Max_Selection_Results;
> 
>    type T_Sel_List is array (T_Sel_Entries range <>) of T_Sel_List_Entry;
> 
>    N_Sel_List : constant T_Sel_List (1 .. 0) := ....;
> 
> Or is it just plain impossible in Ada 83.
> 
> Regards
> 
> Martin

If N_Sel_Entry_Value is a value of type N_Sel_List_Entry, then you could 
write

    N_Sel_List : constant T_Sel_List (1 .. 0) :=
       (1 .. 0 => N_Sel_Entry_Value);

The fact that you have to provide a component value that is never used 
is a well known annoyance.
-- 
"All things extant in this world,
Gods of Heaven, gods of Earth,
Let everything be as it should be;
Thus shall it be!"
- Magical chant from "Magical Shopping Arcade Abenobashi"

"Drizzle, Drazzle, Drozzle, Drome,
Time for this one to come home!"
- Mr. Wizard from "Tooter Turtle"