From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me
X-Spam-Level: 
X-Spam-Status: No, score=0.2 required=5.0 tests=BAYES_00,INVALID_MSGID,
	REPLYTO_WITHOUT_TO_CC autolearn=no autolearn_force=no version=3.4.4
X-Google-Language: ENGLISH,ASCII-7-bit
X-Google-Thread: 103376,60973b026c6e423d
X-Google-Attributes: gid103376,public
From: George Haddad <george.haddad@lmco.com>
Subject: Re: help: character to integer
Date: 1996/10/02
Message-ID: <3252BEC8.529E@lmco.com>#1/1
X-Deja-AN: 186745666
references: <52s2pl$18l@dailyplanet.wam.umd.edu>
 <52t8la$2l8@goanna.cs.rmit.edu.au>
content-type: text/plain; charset=us-ascii
organization: Lockheed Martin M & S, Sunnyvale, CA
mime-version: 1.0
reply-to: george.haddad@lmco.com
newsgroups: comp.lang.ada
x-mailer: Mozilla 2.02 (Macintosh; I; PPC)
Date: 1996-10-02T00:00:00+00:00
List-Id: <comp.lang.ada>


Richard A. O'Keefe wrote:
> spear@wam.umd.edu (Eric Anthony Spear) writes:
> >Is there a function, either in a package or as an attribute, that can 
> >work like this BASIC function:

> >i = ASC("X")
 
> >That is, the function returns the ASCII value of the given character.
> 
> Values of any discrete type can be converted to integers using the
> 'Pos attribute and back again using the 'Val attribute.  This was so
> in Ada 83 and is still so in Ada 95.   You want
> 
>         I := Character'Pos('X');

   Forgive my ignorance, but is there any guarantee that 
Character'POS('X') = {ASCII code for 'X'}?  Especially now that Ada uses 
ISO Latin-1 (or whatever the standard actually calls for).  Are ASCII 
and Latin-1 two names for the same standard?  (I assume that they are at 
least equivalent for "well-behaved" characters as the solution probably 
works empirically.)

   That having been said, it would obviously be easy to convert between 
the two by providing a lookup table.
-- 
I found these opinions on my doorstep, would you please give them a good 
home?