Re: Why does this happen?

[Dennis Lee Bieber <wlfraed@ix.netcom.com>]

svesse fed this fish to the penguins on Tuesday 15 October 2002 03:12 
pm:


> 
> Can someone explain why this would be illegal ?
> 
> ---- test.ads ---
> package test is
> 
>     Type Mtr_Type is array (Positive range <>,
>                             Positive range <>) of integer;
> 
>     type T_typ (Ns : Positive) is record
>        M : Mtr_Type (1..2, 1 .. ns);  -- does not compile


        I know Ada is supposed to be case insensitive, but if this is a direct 
cut&paste from your file... You have "Ns" in the descriminant (hope I 
have the proper term), but "ns" in the array dimension. You /also/ have 
spaces surrounding the "..". Neither of these differences show in the 
following two lines.

> --      M : Mtr_Type (1..Ns, 1..Ns); -- compiles
> --      M : Mtr_Type (1..Ns, 1..2);  -- compiles

        The only other idea is that the calculation of offsets for "1..2" can 
not be done immediately -- it may be that the parsing requires variable 
ranges to be leftmost in the subscript order.

--  
 > ============================================================== <
 >   wlfraed@ix.netcom.com  | Wulfraed  Dennis Lee Bieber  KD6MOG <
 >      wulfraed@dm.net     |       Bestiaria Support Staff       <
 > ============================================================== <
 >        Bestiaria Home Page: http://www.beastie.dm.net/         <
 >            Home Page: http://www.dm.net/~wulfraed/             <