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From: Keith Thompson <kst-u@mib.org>
Newsgroups: comp.lang.ada
Subject: Re: "strings are delimited by double quote character",
 where there's a character variable
Date: Tue, 05 Dec 2017 13:45:49 -0800
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Date: 2017-12-05T13:45:49-08:00
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Shark8 <onewingedshark@gmail.com> writes:
> On Friday, December 1, 2017 at 8:08:41 AM UTC-7, Mehdi Saada wrote:
>> I got a a Character variable gnat says it is a String, while
>> functions taking it as parameter take only Characters. Mentions of
>> the variable in the procedure:
>> C: Character := ''; -- strings are delimited by double quote character
>> while C /= '' loop 
>>         Get(C); PUSH(C); 
>> end loop; 
>> while (C /= '') loop -- same here        
>>         Get(C); 
>>         PUSH(C); 
>> end loop;
>
> The character you are using is referred to in Ada as "Apostrophe" (See
> Package Ada.Characters.Latin_1) the character referred to as a
> double-quote character is "Quotation". -- Respectively, these are
> Character'(''') and Character'('"').

It's not an apostrophe, it's a syntax error, and it doesn't refer to any
character value.

    ''' -- apostrophe character
    ''  -- syntax error
    ""  -- empty string
    "'" -- string containing a single apostrophe

-- 
Keith Thompson (The_Other_Keith) kst-u@mib.org  <http://www.ghoti.net/~kst>
Working, but not speaking, for JetHead Development, Inc.
"We must do something.  This is something.  Therefore, we must do this."
    -- Antony Jay and Jonathan Lynn, "Yes Minister"