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From: robert_dewar@my-dejanews.com
Subject: Re: Character Type?
Date: 1999/01/28
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References: <78lfbq$l16$1@ligarius.ultra.net> <36AF1CB3.BC7741B4@pgh.net>
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Date: 1999-01-28T00:00:00+00:00
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In article <36AF1CB3.BC7741B4@pgh.net>,
  ghristwd@pgh.net wrote:
> Well, I'm pretty new with Ada, but the obvious problem, I
> think, is that '10' is not a character, it is a string.

That's confusingly wrong.

Strings in Ada are delimited with the character "

The character ' is used to delimit character literals. The
sequence of characters '10' is not anything at all, it is
simply invalid, as is easily seen from the grammar rules
in the RM.

Now in general of course, you might be right, that if you
see '10' it could be that the programmer intended a string,
and indeed GNAT makes this guess:

     1. procedure j is
     2.   x : character := '10';
                           |
        >>> strings are delimited by double quote character

     3. begin
     4.    null;
     5. end;

However, in the original program, it clearly was NOT
intended to be a string, in fact from the original program
I certainly have no idea what the programmer had in mind,
it was clearly very muddled thinking, so it is certainly
not surprising that the compiler could not magically
suggest what the programmer had in mind in this particular
case :-)


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