220 27636 <77b65a95-52c4-4191-8b65-764591aa6b2c@isocpp.org> article Path: news.gmane.org!.POSTED!not-for-mail From: Nicol Bolas Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Re: this in non-member functions Date: Fri, 5 Aug 2016 10:53:16 -0700 (PDT) Lines: 144 Approved: news@gmane.org Message-ID: <77b65a95-52c4-4191-8b65-764591aa6b2c@isocpp.org> References: <2351486.cE391vEbrj@tjmaciei-mobl1> <814750ea-1ef8-4792-9b50-aec0bae4d841@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_2280_1148085141.1470419596371" X-Trace: blaine.gmane.org 1470419625 12993 195.159.176.226 (5 Aug 2016 17:53:45 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Fri, 5 Aug 2016 17:53:45 +0000 (UTC) Cc: inkwizytoryankes@gmail.com To: ISO C++ Standard - Future Proposals Original-X-From: std-proposals+bncBCEKFTV6ZUMBBDNFSO6QKGQEGI3FGYQ@isocpp.org Fri Aug 05 19:53:37 2016 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-qt0-f197.google.com ([209.85.216.197]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bVjJ9-0008TG-3k for gclcip-std-proposals@m.gmane.org; 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Fri, 05 Aug 2016 10:53:18 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.107.19.150 with SMTP id 22ls2547429iot.17.gmail; Fri, 05 Aug 2016 10:53:17 -0700 (PDT) X-Received: by 10.36.217.2 with SMTP id p2mr210426itg.5.1470419597382; Fri, 05 Aug 2016 10:53:17 -0700 (PDT) In-Reply-To: <814750ea-1ef8-4792-9b50-aec0bae4d841@isocpp.org> X-Original-Sender: jmckesson@gmail.com Precedence: list Mailing-list: list std-proposals@isocpp.org; contact std-proposals+owners@isocpp.org List-ID: X-Google-Group-Id: 399137483710 List-Post: , List-Help: , List-Archive: List-Subscribe: , List-Unsubscribe: , Xref: news.gmane.org gmane.comp.lang.c++.isocpp.proposals:27636 Archived-At: ------=_Part_2280_1148085141.1470419596371 Content-Type: multipart/alternative; boundary="----=_Part_2281_1596674207.1470419596371" ------=_Part_2281_1596674207.1470419596371 Content-Type: text/plain; charset=UTF-8 On Friday, August 5, 2016 at 1:17:10 PM UTC-4, inkwizyt...@gmail.com wrote: > > On Thursday, August 4, 2016 at 12:26:36 PM UTC+2, Viacheslav Usov wrote: >> >> On Thu, Aug 4, 2016 at 11:14 AM, Bo Persson wrote: >> >> > Yes, I would definitely be confused by the sublety of the parameter >> name. >> >> I hope everybody has read the original message in the thread. >> >> As a reminder, this is not only about parameters, and the public-only >> binding was mentioned there. The confusion that can arise because of the >> public-only binding ("first kind") and because of misspelled identifiers >> ("second kind") is not something new that this proposal would introduce. >> The first kind is present, for example, in this: >> >> struct A >> { >> int x; >> private: >> int y; >> }; >> >> struct B: A >> { >> void foo() >> { >> x = 1; // OK >> y = 2; // error >> } >> }; >> >> The second kind is always just around the corner in any C++ program. >> >> int she; >> struct foo >> { >> int he; >> void bar() { she = 1; } // really? >> ]; >> >> Cheers, >> V. >> >> > > And what about templates? > template > void f(T* this) > { > a = 6; > }; > What meaning have this code? `a` is member or global value? > It would be whatever it would be if `f` were actually a non-static member of `T`. God only knows how you'd actually define that in the standard though. -- You received this message because you are subscribed to the Google Groups "ISO C++ Standard - Future Proposals" group. To unsubscribe from this group and stop receiving emails from it, send an email to std-proposals+unsubscribe@isocpp.org. To post to this group, send email to std-proposals@isocpp.org. To view this discussion on the web visit https://groups.google.com/a/isocpp.org/d/msgid/std-proposals/77b65a95-52c4-4191-8b65-764591aa6b2c%40isocpp.org. ------=_Part_2281_1596674207.1470419596371 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
On Friday, August 5, 2016 at 1:17:10 PM UTC-4, inkwizyt...= @gmail.com wrote:
On Thursday, August 4, 2016 at 12:26:36 PM UTC+2, Viacheslav Usov wrote= :
On Thu, Aug 4, 2016 at 11:14 AM, Bo Persson <b...@gmb.dk> wrote:

> Yes, I would d= efinitely be confused by the sublety of the parameter name.

I hope everybody has read the original= message in the thread.

As a reminder, this is not= only about parameters, and the public-only binding was mentioned there. Th= e confusion that can arise because of the public-only binding ("first = kind") and because of misspelled identifiers ("second kind")= is not something new that this proposal would introduce. The first kind is= present, for example, in this:

struct A
{
=C2=A0 =C2=A0 int x;
private:
=C2=A0 =C2= =A0 int y;
};

struct B: A
{
=C2=A0 =C2=A0 void foo()
=C2=A0 =C2=A0 {
=C2=A0= =C2=A0 =C2=A0 =C2=A0 x =3D 1; // OK
=C2=A0 =C2=A0 =C2=A0 =C2=A0 = y =3D 2; // error
=C2=A0 =C2=A0 }
};

The second kind is always just around the corner in any C++ program.=

int she;
struct foo
{
=C2=A0 =C2=A0 int he;
=C2=A0 =C2=A0 void bar() { s= he =3D 1; } // really?
];

Cheers,
V.



= And what about templates?
template<typename T>
void f(T* this)
{
=C2=A0 =C2=A0 a =3D = 6;
};
What meaning have this c= ode? `a` is member or global value?

It= would be whatever it would be if `f` were actually a non-static member of = `T`. God only knows how you'd actually define that in the standard thou= gh.

--
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To unsubscribe from this group and stop receiving emails from it, send an e= mail to std-proposa= ls+unsubscribe@isocpp.org.
To post to this group, send email to std-proposals@isocpp.org.
To view this discussion on the web visit https://groups.google.= com/a/isocpp.org/d/msgid/std-proposals/77b65a95-52c4-4191-8b65-764591aa6b2c= %40isocpp.org.
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