220 7751 <2CC6D6A0-D78D-4FE7-BBB0-E3CC951E87E4@hsr.ch> article Path: news.gmane.org!not-for-mail From: Peter Sommerlad Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: 2 Type-Traits Proposals: Standard Transformations and More Array Transformations Date: Thu, 14 Nov 2013 13:11:43 +0100 Lines: 67 Approved: news@gmane.org Message-ID: <2CC6D6A0-D78D-4FE7-BBB0-E3CC951E87E4@hsr.ch> References: <49883229-58c3-4c26-bbc8-492ebd7e93dd@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 (Mac OS X Mail 6.6 \(1510\)) Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Trace: ger.gmane.org 1384431107 16154 80.91.229.3 (14 Nov 2013 12:11:47 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 14 Nov 2013 12:11:47 +0000 (UTC) To: Original-X-From: std-proposals+bncBD3OHQEN4AJBBAX4SKKAKGQELEGJZEQ@isocpp.org Thu Nov 14 13:11:52 2013 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-ee0-f69.google.com ([74.125.83.69]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1Vgvlz-0001bw-21 for gclcip-std-proposals@m.gmane.org; Thu, 14 Nov 2013 13:11:47 +0100 Original-Received: by mail-ee0-f69.google.com with SMTP id e52sf2066105eek.4 for ; Thu, 14 Nov 2013 04:11:46 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date :message-id:references:to:x-original-sender :x-original-authentication-results:reply-to:precedence:mailing-list :list-id:list-post:list-help:list-archive:list-subscribe :list-unsubscribe:content-type:content-transfer-encoding; bh=OLmHM1S450zX4BUM2bPWHTV7fxU62//0UHOfECjMvJw=; b=HE47D6AU4794UeJjQUYe4iGDJwqfnB42LC98Fpgj1gOGCxEP91ggnXypBoZ6ePzaL5 pFv4W2RWycW1KAivNsZI2HBl+awkQSx+bjQACrxfis/kXslD5FBebMYEhP7eZ+JCuv0n o7bD2mtW3cX8vL6I9g/k9RufoEK+umTJgMHv77fhpgtOkaWrnZd/mtlDwV9MwRbvax0Q mcCpjTCQT+mfi8xqgXG+2uDfYuKWjPaSt6yZCDUNK/FAa7Qy5TCbrp3pvvKTtuokatTD UbXC7nzRybcn4eDsajezJ93CkKcWDfFpNN9Ko6ES2FjHdQFUmXRi5TWqxoLOB+y2XS7r 8pHw== X-Gm-Message-State: ALoCoQn9LE7fI70wtX0GrNKdGJVSqvIV8LrhCGf0X5cMivPNrS81ye9lul6EdMtZ4w1TGzf4TZXu X-Received: by 10.180.37.68 with SMTP id w4mr819898wij.3.1384431106593; Thu, 14 Nov 2013 04:11:46 -0800 (PST) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.180.89.243 with SMTP id br19ls85296wib.13.canary; Thu, 14 Nov 2013 04:11:45 -0800 (PST) X-Received: by 10.180.24.6 with SMTP id q6mr2279205wif.0.1384431105226; Thu, 14 Nov 2013 04:11:45 -0800 (PST) Original-Received: from mx1.hsr.ch (mx1.hsr.ch. [2001:620:130:a036::50]) by mx.google.com with ESMTP id g9si27716135eet.34.2013.11.14.04.11.45 for ; Thu, 14 Nov 2013 04:11:45 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of psommerl@hsr.ch designates 2001:620:130:a036::50 as permitted sender) client-ip=2001:620:130:a036::50; Original-Received: from localhost (localhost [127.0.0.1]) by mx1.hsr.ch (Postfix) with ESMTP id E6478A96E for ; Thu, 14 Nov 2013 13:11:44 +0100 (CET) Original-Received: from mx1.hsr.ch ([127.0.0.1]) by localhost (mx1.hsr.ch [127.0.0.1]) (amavisd-new, port 10024) with LMTP id YBs4XSYOkGeB for ; Thu, 14 Nov 2013 13:11:44 +0100 (CET) Original-Received: from webmail.hsr.ch (sid00200.hsr.ch [152.96.21.200]) by mx1.hsr.ch (Postfix) with ESMTP id 89950774 for ; Thu, 14 Nov 2013 13:11:44 +0100 (CET) Original-Received: from [192.168.1.11] (152.96.21.55) by smtp.hsr.ch (152.96.21.200) with Microsoft SMTP Server (TLS) id 14.3.158.1; Thu, 14 Nov 2013 13:11:44 +0100 In-Reply-To: <49883229-58c3-4c26-bbc8-492ebd7e93dd@isocpp.org> X-Mailer: Apple Mail (2.1510) X-Originating-IP: [152.96.21.55] X-Original-Sender: peter.sommerlad@hsr.ch X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of psommerl@hsr.ch designates 2001:620:130:a036::50 as permitted sender) smtp.mail=psommerl@hsr.ch 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:7751 Archived-At: On 14.11.2013, at 12:52, Daryle Walker wrote: >=20 > So far, I have two new transformation type-traits, a change to an existin= g one (adding the built-in character types to std::underlying_type), plus a= test type-trait. If you know of other similar transformations in the Stand= ard, let me know so I can add them. wrt > Should bool be added? (There is no mention if it has to shadow another in= teger type.) I believe bool won't have an underlying type and should not be added. wrt char I believe it might be nice to determine if char is signed or unsigned. but = couldn't that already be achieved by is_same_t() ? >=20 > The second proposal does more array extent changing. One type-traits remo= ves a user-selectable number of extents from an array type. (The current St= andard has type-traits that do either one or all extents.) The other type-t= rait adds extents to a given type. Why can't the example use static_assert instead of assert? >=20 > Daryle W. >=20 >=20 > --=20 > =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= 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-propo= sals/. --=20 Prof. Peter Sommerlad Institut f=FCr Software: Bessere Software - Einfach, Schneller! HSR Hochschule f=FCr Technik Rapperswil Oberseestr 10, Postfach 1475, CH-8640 Rapperswil http://ifs.hsr.ch http://cute-test.com http://linticator.com http://includa= tor.com tel:+41 55 222 49 84 =3D=3D mobile:+41 79 432 23 32 fax:+41 55 222 46 29 =3D=3D mailto:peter.sommerlad@hsr.ch --=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/. .