220 5113 <99414030-2563-46a3-a47b-dc43099dc74d@isocpp.org> article Path: news.gmane.org!not-for-mail From: Dan Hatch Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Proposal: Calling Base class construct on inheritance declaration Date: Wed, 19 Jun 2013 11:22:55 -0700 (PDT) Lines: 187 Approved: news@gmane.org Message-ID: <99414030-2563-46a3-a47b-dc43099dc74d@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_4469_9521297.1371666175685" X-Trace: ger.gmane.org 1371666177 17625 80.91.229.3 (19 Jun 2013 18:22:57 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 19 Jun 2013 18:22:57 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBD4PPREP2AFBBAHOQ6HAKGQEYQCSVRI@isocpp.org Wed Jun 19 20:22:58 2013 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-yh0-f69.google.com ([209.85.213.69]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1UpN21-0005gj-N6 for gclcip-std-proposals@m.gmane.org; Wed, 19 Jun 2013 20:22:57 +0200 Original-Received: by mail-yh0-f69.google.com with SMTP id b12sf7661983yha.8 for ; Wed, 19 Jun 2013 11:22:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-beenthere:date:from:to:message-id:subject:mime-version :x-original-sender:reply-to:precedence:mailing-list:list-id :x-google-group-id:list-post:list-help:list-archive:list-subscribe :list-unsubscribe:content-type; bh=LVKShgadtTxiN9sVsl/nGV9h3A8f+gN91Jb5uAeoSiY=; b=AKolisSJIjIG2QLX2GvIWTapWhsyyNTzPSWVA+eLrDG5Wc6+j80C7PHLQTfuvtB2PE 9IupEcAyVhb4Wy7SvAgKJL2ZK4KihRBUUrpPyGi6gqvpcmzmsAujf8yo90slb0Hw9S+6 Xryo0j68q6sSG4I6ZktG88wh8zIbI3eAlsvFI8gkyQueE7hXgai+lOph8WRkXuyMVq94 jrQ0bytanS+mu4bb3zoKoYFAyOOHYno8hbsuZeRMdI9cA7fG2Zx1Y1nLbENrxzc8biT2 Zdhin1I860ZegMdWwSroyk9xA++VTicBMF/SQek2tXOuYNAnwISWy2hVZP+OLCOj3fns xmqQ== X-Received: by 10.236.92.42 with SMTP id i30mr2114872yhf.52.1371666176868; Wed, 19 Jun 2013 11:22:56 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.49.129.36 with SMTP id nt4ls391153qeb.25.gmail; Wed, 19 Jun 2013 11:22:56 -0700 (PDT) X-Received: by 10.49.12.141 with SMTP id y13mr90284qeb.41.1371666176102; Wed, 19 Jun 2013 11:22:56 -0700 (PDT) X-Original-Sender: danhatch333@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:5113 Archived-At: ------=_Part_4469_9521297.1371666175685 Content-Type: text/plain; charset=ISO-8859-1 I'm looking for some feedback on whether something like this is a good idea. In my opinion, it makes the code more terse and easier to understand. class Base { explicit Base ( const char* name ) : className( name ) {} const char* getClassName() { return className; } const char* className = "Base"; }; // Call Base class' constructor class Derived : public Base("Derived") { Derived( int foo ) {} }; // This would be syntactic sugar for calling the base class's constructor for // each of the Derived class's constructors. class Derived : public Base { Derived() : Base("Derived") {} Derived( int foo ) : Base("Derived") {} }; -- --- 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. Visit this group at http://groups.google.com/a/isocpp.org/group/std-proposals/. ------=_Part_4469_9521297.1371666175685 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable

I'm looking for some feedback on whether something like this is a g= ood idea.
In my opinion, it makes the code more terse and easier to unde= rstand.

class <= /span>Base= {
    explicit Base ( const char* name ) : className( name ) = {}<= span style=3D"color: #000;" class=3D"styled-by-prettify">
    = const char* getClassName() { return className; }
    = const char* className =3D "Base";
};

// Call Base c= lass' constructor
class Derived : public Base("Derived") {
    Derived( int foo ) {}=
};

// This would be= syntactic sugar for calling the base class's constructor for
// each of the Derived class= 's constructors.
= class Derived= : public Base {
&n= bsp;   Derived(= ) <= span style=3D"color: #660;" class=3D"styled-by-prettify">: Base("Derived") {}    Derived( int foo ) : Base("De= rived") {}
};



--
 
---
You received this message because you are subscribed to the Google Groups &= quot;ISO C++ Standard - Future Proposals" group.
To unsubscribe from this group and stop receiving emails from it, send an e= mail to std-proposals+unsubscribe@isocpp.org.
To post to this group, send email to std-proposals@isocpp.org.
Visit this group at http://groups.google.com/a/isocpp.org/group/std-proposals/<= /a>.
 
 
------=_Part_4469_9521297.1371666175685-- .