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From: "Jeffrey R. Carter" <spam.jrcarter.not@acm.nospam.org>
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Newsgroups: comp.lang.ada
Subject: Re: String literals and wide_string literals - how?
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Date: 2007-05-23T18:42:33+00:00
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Randy Brukardt wrote:
> 
> My example was:
>     type Roman is ('I', 'V', 'X', 'L', 'C');
>     type Roman_Numeral is array (Positive range <>) of Roman;
>     Eight : Roman_Numeral := "VIII";

You forgot 'D' and 'M'!

> "Roman" here is a character type, but there is no way to think of it as a
> subtype of "Character" (for one thing, the literals have a different
> ordering - 'C' > 'X', for instance). The fact that you can then use this new
> type to get something that works like a String is what is interesting.

It's interesting, and fun, and sometimes useful. When using it in the 
latter category, what's irritating is that Ada has no easy way to output 
Eight and other such user-defined character and string values in 
human-readable form. There's no equivalent of the various Text_IO pkgs 
for user-defined character and string types, and Enumeration_IO doesn't 
give you what you want.

-- 
Jeff Carter
"You couldn't catch clap in a brothel, silly English K...niggets."
Monty Python & the Holy Grail
19