Re: What do you think about this?

[Stephen Leake <stephen_leake@stephe-leake.org>]

"Jeffrey R. Carter" <spam.jrcarter.not@spam.not.acm.org> writes:

> On 06/24/2015 03:17 AM, Stephen Leake wrote:
>> Laurent <lutgenl@icloud.com> writes:
>> 
>>> CMI_Type is ("<=1","0,004","3"); or CMI_Type is ("1","2","3");
>> 
>> This is not an enumeration; it is an aggregate of strings. In Ada you
>> can do this as:
>
> Actually, it's invalid.
>
>> type CMI_Type is array (Integer range <>) of access constant String;
>> 
>> CMI_1 : constant CMI_Type := (+"<=", +"0,004", +"3");
>
> This is a terrible idea. As compiler writer, ARG member, and ARM editor Brukardt
> said recently in another thread, anonymous access types are evil. 

This is one place they are very useful.

> I would even
> argue against a named access type for this, since unbounded strings are
> available. In this case, the OP has an instance of bounded strings available and
> would probably want to use that.

That makes them non-constant, which is certainly _not_ the intent!


-- 
-- Stephe