Re: Beginners question: Compound types, how-to?

[Mart van de Wege <mvdwege@mail.com>]

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

> On 10/31/2010 03:00 PM, Mart van de Wege wrote:
>>
>> games-rpg-dnd.ads:
>> --with Games.RPG;
>> -- Ignore parent package for now, we don't need the
>> -- utility functions yet.
>
> Children always have visibility into the specs of their ancestors, so
> you never need to "with" said ancestors.
>
Cool. I missed this tidbit in the texts I read. I suppose this *is*
spelled out in the Reference Manual?

>> with Games.RPG.DnD, Ada.Text_IO, Ada.Integer_Text_IO;
>> use Games.RPG.DnD, Ada.Text_IO, Ada.Integer_Text_IO;
>>
>> procedure Test_Game is
>>     C : Character;
>
> You have 2 things named Character at this point: Standard.Character,
> an enumeration type, and Standard.Games.RPG.DND.Character, a record
> type. 

Thanks to Jeffrey and the others. Yes, this was an elementary mistake,
and I kept overlooking it because I also have C experience, so I kept
reading Character as a perfectly fine identifier and dismissing Char
because I thought it was a reserved word.

I should have realised sooner that Ada uses full words, not
abbreviations, whenever possible.

I recompiled with Char as the type name; it looks ugly, but I think I
know a way around that, but that involves inheritance, and I am not
touching that just yet. 

My test code works fine now. I am relieved at least to know that my
logic was sound, even if the code wasn't particularly.

Mart
-- 
"We will need a longer wall when the revolution comes."
    --- AJS, quoting an uncertain source.