Re:A quickie problem with an array and a right hand bracket

Re:A quickie problem with an array and a right hand bracket

[ANH_VO]

It is clearly violated Ada syntax rules. '0'..'9' and 'a'..'f' mean character
range, not a single value. Character range does not match the array object
Basic_16. The correct syntax is shown below or similar.

      basic_16 : constant array_16 := 
        ('0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
         'a', 'b', 'c', 'd', 'e', 'f');

Anh Vo

____________________Reply Separator____________________
Subject:    A quickie problem with an array and a right hand bracket
Author: "chris.danx" <chris.danx@ntlworld.com>
Date:       6/11/01 6:08 PM

Hello everyone,

I'm trying to provide an array for quickie conversion between numbers and
character equivalents like this

    type array_16 is array (natural range 0..15) of character;

    basic_16 : constant array_16 := ('0'..'9'|'a'..'f');

The compiler corrected me on the use of a comma where the dda ("d divides a",
from math sorry, it's a bar or more symbol) but this doesn't help with
"unexpected parenthesis error" when it's compiled.  What's the problem?  It
looks correct to me but clearly i am missing something (very subtle) point.

In case i get the use text_io and tear off the start and end parts for
displaying in other bases argument.  I do not want to use text_io in this manner
since i want to remove (as much as possible) dependance on the standard packages
(for now).


Thanks,
Chris Campbell

Re: Re:A quickie problem with an array and a right hand bracket

[DuckE]

Personally, I prefer

  basic_16 : constant array_16 := "0123456789abcdef";

for this case.

SteveD

<ANH_VO@udlp.com> wrote in message
news:mailman.992281454.32344.comp.lang.ada@ada.eu.org...
> It is clearly violated Ada syntax rules. '0'..'9' and 'a'..'f' mean
character
> range, not a single value. Character range does not match the array object
> Basic_16. The correct syntax is shown below or similar.
>
>       basic_16 : constant array_16 :=
>         ('0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
>          'a', 'b', 'c', 'd', 'e', 'f');
>
> Anh Vo
>
> ____________________Reply Separator____________________
> Subject:    A quickie problem with an array and a right hand bracket
> Author: "chris.danx" <chris.danx@ntlworld.com>
> Date:       6/11/01 6:08 PM
>
> Hello everyone,
>
> I'm trying to provide an array for quickie conversion between numbers and
> character equivalents like this
>
>     type array_16 is array (natural range 0..15) of character;
>
>     basic_16 : constant array_16 := ('0'..'9'|'a'..'f');
>
> The compiler corrected me on the use of a comma where the dda ("d divides
a",
> from math sorry, it's a bar or more symbol) but this doesn't help with
> "unexpected parenthesis error" when it's compiled.  What's the problem?
It
> looks correct to me but clearly i am missing something (very subtle)
point.
>
> In case i get the use text_io and tear off the start and end parts for
> displaying in other bases argument.  I do not want to use text_io in this
manner
> since i want to remove (as much as possible) dependance on the standard
packages
> (for now).
>
>
> Thanks,
> Chris Campbell
>
>