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=-1.3 required=5.0 tests=BAYES_00,INVALID_MSGID,
	WEIRD_QUOTING autolearn=no autolearn_force=no version=3.4.4
X-Google-Language: ENGLISH,ASCII-7-bit
X-Google-Thread: 103376,f9cd205deb0d77f2
X-Google-Attributes: gid103376,public
From: dewar@merv.cs.nyu.edu (Robert Dewar)
Subject: Re: How can I qualify the predefined logical operations
Date: 1998/07/17
Message-ID: <dewar.900699071@merv>#1/1
X-Deja-AN: 372436294
References: <6okcnl$n93$1@nnrp1.dejanews.com>
 <6ola80$vhs$1@nnrp1.dejanews.com>
X-Complaints-To: usenet@news.nyu.edu
X-Trace: news.nyu.edu 900699125 30886 (None) 128.122.140.58
Organization: New York University
Newsgroups: comp.lang.ada
Date: 1998-07-17T00:00:00+00:00
List-Id: <comp.lang.ada>

Tuck said

<<:  package body Some_Package is
:    function "And" (Left, Right: Private_Type) return Private_Type is
:    begin
:      return Standard."And" (Left, Right);  -- ERROR: not possible

This should not work (though it may work in some versions of GNAT),
because the predefined "and" is *not* declared in package Standard.
>>


Just so no confusion arises from the above, it is most certainly the
case that the current version of GNAT rejects the above illegal program:

     1.   package body Some_Package is
     2.     function "And" (Left, Right: Private_Type) return Private_Type is
     3.     begin
     4.       return Standard."And" (Left, Right);  -- ERROR: not possible
                             |
        >>> ""And"" not declared in "Standard"

     5.     end "And";
     6.   end Some_Package;