220 18162 article Path: news.gmane.org!not-for-mail From: "dgutson ." Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: template blocks Date: Sat, 23 May 2015 10:12:24 -0300 Lines: 198 Approved: news@gmane.org Message-ID: Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/alternative; boundary=089e0115eb7026fff00516bf8765 X-Trace: ger.gmane.org 1432386752 13663 80.91.229.3 (23 May 2015 13:12:32 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 23 May 2015 13:12:32 +0000 (UTC) To: std-proposals Original-X-From: std-proposals+bncBDE3NBMV6UFBBOXZQGVQKGQEIAJUIHY@isocpp.org Sat May 23 15:12:29 2015 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-ie0-f199.google.com ([209.85.223.199]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1Yw9E4-0005L0-0w for gclcip-std-proposals@m.gmane.org; Sat, 23 May 2015 15:12:28 +0200 Original-Received: by iebgx4 with SMTP id gx4sf98860936ieb.1 for ; Sat, 23 May 2015 06:12:26 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:date:message-id:subject:from:to :content-type:x-original-sender:x-original-authentication-results :reply-to:precedence:mailing-list:list-id:list-post:list-help :list-archive:list-subscribe:list-unsubscribe; bh=f+TWbaaqWmvbm95wbbcAOJYQQfc99Lq6CtczgjvMGos=; b=Yd0QqVcHAnB2Xzbv3RAX7YKbYBNOCbiKZ4Vwfx4h0yQdaOGgE2L6EhGysuKU50m7IM Zp/6RZ0eWqwAanaJpCjXI9yElP0j1jHd74d0n0vYoS8OorWu6BNQEx7+yvEIBgEirnUv bpCSoWTdlkukYQCTw2HifJzLRlm+a/ReuGYEZaoew1xMy0/CMOYjOwjJdnstRoULMW1G soKu+3NM6KoXf78PPRDHADiS/eVmxM7x8AI7ud0EF5fdsl1H605XB0QD6dsB5gtZtCL8 fX0SiWye0jilF8HGSznS6c6i73eXHLTMR5/VEJuYF25LIUCZlmOYZwJ4u2gY0SAwWdEx 9+qg== X-Gm-Message-State: ALoCoQk6EwoqXtz672MojOU0Si+mCZhbB6Z+HyjhgH+T5qFEvgnI5iAYMlNXgdcGAcvaf5lePuhm X-Received: by 10.42.204.75 with SMTP id fl11mr17686426icb.16.1432386746845; Sat, 23 May 2015 06:12:26 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.140.22.175 with SMTP id 44ls2338876qgn.79.gmail; Sat, 23 May 2015 06:12:26 -0700 (PDT) X-Received: by 10.170.133.208 with SMTP id z199mr14700799ykb.61.1432386745995; Sat, 23 May 2015 06:12:25 -0700 (PDT) Original-Received: from mail-yk0-x22f.google.com (mail-yk0-x22f.google.com. [2607:f8b0:4002:c07::22f]) by mx.google.com with ESMTPS id k204si3190084yka.126.2015.05.23.06.12.25 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 23 May 2015 06:12:25 -0700 (PDT) Received-SPF: pass (google.com: domain of danielgutson@gmail.com designates 2607:f8b0:4002:c07::22f as permitted sender) client-ip=2607:f8b0:4002:c07::22f; Original-Received: by ykfr66 with SMTP id r66so12542058ykf.0 for ; Sat, 23 May 2015 06:12:25 -0700 (PDT) X-Received: by 10.236.2.230 with SMTP id 66mr12862948yhf.129.1432386745596; Sat, 23 May 2015 06:12:25 -0700 (PDT) Original-Received: by 10.129.90.213 with HTTP; Sat, 23 May 2015 06:12:24 -0700 (PDT) Original-Received: by 10.129.90.213 with HTTP; Sat, 23 May 2015 06:12:24 -0700 (PDT) X-Original-Sender: danielgutson@gmail.com X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of danielgutson@gmail.com designates 2607:f8b0:4002:c07::22f as permitted sender) smtp.mail=danielgutson@gmail.com; dkim=pass header.i=@gmail.com; dmarc=pass (p=NONE dis=NONE) header.from=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:18162 Archived-At: --089e0115eb7026fff00516bf8765 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable El 23/5/2015 10:09, escribi=C3=B3: > > > El 22/5/2015 12:20, "Douglas Boffey" escribi= =C3=B3: > > > > Consider: > > > > template > > class Foo { > > // whatever > > public: > > void bar(); > > void baz(); > > void another_fn(); > > // ... > > }; > > FWIW, I think that something similar has been proposed some years ago: > > //no namespace version: Errata: "non template version" > namespace class Foo { > void bar() { ... } > void baz() { ... } > } > > // templated version: > template > namespace class Foo { > void bar() { ... } > void baz() { ... } > ...rest of the definitions > } > > It was slightly different since blocks are class-specific. > I don't remember what crushed this. > > > > > To define the functions, you would have to write: > > > > template > > void Foo::bar() { /* ... */ } > > > > template > > void Foo::baz() { /* ... */ } > > > > template > > void Foo::another_fn() { /* ... */ } > > > > Wouldn=E2=80=99t it be better if we could write: > > > > template { > > void Foo::bar() { /* ... */ } > > void Foo::baz() { /* ... */ } > > void Foo::another_fn() { /* ... */ } > > } > > > > Pro: > > - less typing (although that is not the motivating reason) > > - cleaner, clearer syntax, improving maintainability > > - easier to check correctness > > > > What do people think? > > > > -- > > > > --- > > 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/. --=20 ---=20 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 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-proposa= ls/. --089e0115eb7026fff00516bf8765 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable


El 23/5/2015 10:09, escribi=C3=B3:
>
>
> El 22/5/2015 12:20, "Douglas Boffey" <douglas.boffey@gmail.com> escribi=C3=B3: > >
> > Consider:
> >
> > template <typename T>
> > class Foo {
> > =C2=A0 // whatever
> > public:
> > =C2=A0 void bar();
> > =C2=A0 void baz();
> > =C2=A0 void another_fn();
> > =C2=A0 // ...
> > };
>
> FWIW, I think that something similar has been proposed some years ago:=
>
> //no namespace version:

Errata: "non template version"

> namespace class Foo {
> void bar() { ... }
> void baz() { ... }
> }
>
> // templated version:
> template <typename T>
> namespace class Foo {
> void bar() { ... }
> void baz() { ... }
> ...rest of the definitions
> }
>
> It was slightly different since blocks are class-specific.
> I don't remember what crushed this.
>
> >
> > To define the functions, you would have to write:
> >
> > template <typename T>
> > void Foo::bar() { /* ... */ }
> >
> > template <typename T>
> > void Foo::baz() { /* ... */ }
> >
> > template <typename T>
> > void Foo::another_fn() { /* ... */ }
> >
> > Wouldn=E2=80=99t it be better if we could write:
> >
> > template <typename T> {
> > =C2=A0 void Foo::bar() { /* ... */ }
> > =C2=A0 void Foo::baz() { /* ... */ }
> > =C2=A0 void Foo::another_fn() { /* ... */ }
> > }
> >
> > Pro:
> > - less typing (although that is not the motivating reason)
> > - cleaner, clearer syntax, improving maintainability
> > - easier to check correctness
> >
> > What do people think?
> >
> > --
> >
> > ---
> > You received this message because you are subscribed to the Googl= e 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-p= roposals/.

--

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