From mboxrd@z Thu Jan  1 00:00:00 1970
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From: bobduff@world.std.com (Robert A Duff)
Subject: Re: Types Converting
Date: 1996/04/27
Message-ID: <DqJAHw.A35@world.std.com>#1/1
X-Deja-AN: 151744159
references: <4os0iCAqCegxEwYz@dhaheri.demon.co.uk>
 <4ltn0h$c37@rigel.rz.uni-ulm.de>
organization: The World Public Access UNIX, Brookline, MA
newsgroups: comp.lang.ada
Date: 1996-04-27T00:00:00+00:00
List-Id: <comp.lang.ada>


In article <4ltn0h$c37@rigel.rz.uni-ulm.de>,
Joerg Rodemann <rodemann@mathematik.uni-ulm.de> wrote:
>   Message : String;

It's illegal to declare a variable of type String, unless you either
initialize it, or give bounds.  E.g. "Message: String := ...;" or
"Message: String(1..50);".

>   Message := "The Total is " & i'Image & " out of 100";

Image is an attribute of types, not variables.  E.g. "Integer'Image(I)".

What you want is something like:

    Message: constant String := "The total is" & Integer'Image(I) 
				& " out of 100";

Note that the 'Image attribute evilly adds an extra space (if I is
positive), so I didn't put a space after "is".

In my own code, I write an Image function, which avoids the annoying
extra space, and has lots of options like allowing hexadecimal, and
putting in underscores every 3 characters, etc.  All with defaults, of
course, so "Image(I)" does something reasonable.

- Bob