From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 9078 invoked by alias); 1 Jun 2016 18:46:18 -0000 Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org Received: (qmail 9064 invoked by uid 89); 1 Jun 2016 18:46:18 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-2.4 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_LOW autolearn=ham version=3.3.2 spammy= X-HELO: mail-qk0-f174.google.com Received: from mail-qk0-f174.google.com (HELO mail-qk0-f174.google.com) (209.85.220.174) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES128-GCM-SHA256 encrypted) ESMTPS; Wed, 01 Jun 2016 18:46:17 +0000 Received: by mail-qk0-f174.google.com with SMTP id i187so19173795qkd.3 for ; Wed, 01 Jun 2016 11:46:17 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:subject:to:references:cc:from:message-id:date :user-agent:mime-version:in-reply-to:content-transfer-encoding; bh=lsnVuDqHUU+NlmUB0mamvcA8bqJNN02JDTaRGLKDwYQ=; b=kCkbES7kfKu2bHyjVgFf1gGubjnurEj/a9jy2mTN2H0+A3gmD7zzWSk5VEeqVFB5tv ZLfQTCuuQc0j5ZDb0v2ZAo6bMSaGrqmIDjNZHWxvo4J8PELsXrcDHQ9GQZYJwl3LRY+V 14TJW3newQMbL2SEigw59nH8GGV1UoSowsoSdE+Fkt+7WJ9l2PSEgH4urLKY1Yz7EELm gmcXz6T0AO1/ytRRMa8Gb9gcWc63vYefL7wXTHSSyrvDjcxtEZRNDiiquhnIRHnD9BxI b+//gPSV/6+DqhQXaGPAfdC7/b1dKfFMvflaXB6Ma97jMmp4kHHCsODpuuGXeQSFNwyt jMNw== X-Gm-Message-State: ALyK8tKyPDFuGoR5zzrVDxTpzADSUZQhJhd9STSKjZsGDFjOfoUBQnqL+7ngEBJ7+OX1ZgFm X-Received: by 10.55.195.193 with SMTP id r62mr29554696qkl.23.1464806775307; Wed, 01 Jun 2016 11:46:15 -0700 (PDT) Received: from [192.168.1.50] (209-6-90-240.c3-0.smr-ubr1.sbo-smr.ma.cable.rcn.com. [209.6.90.240]) by smtp.gmail.com with ESMTPSA id o21sm10042982qge.23.2016.06.01.11.46.14 (version=TLSv1/SSLv3 cipher=OTHER); Wed, 01 Jun 2016 11:46:14 -0700 (PDT) Subject: Re: [PATCH] integer overflow checking builtins in constant expressions To: Martin Sebor , Jakub Jelinek References: <57263154.5080401@gmail.com> <20160531215025.GK28550@tucnak.redhat.com> <574E13DD.9040401@gmail.com> Cc: Gcc Patch List , "Joseph S. Myers" From: Jason Merrill Message-ID: Date: Wed, 01 Jun 2016 18:46:00 -0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.1.0 MIME-Version: 1.0 In-Reply-To: <574E13DD.9040401@gmail.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-IsSubscribed: yes X-SW-Source: 2016-06/txt/msg00072.txt.bz2 On 05/31/2016 06:44 PM, Martin Sebor wrote: > Without this change, C or C++ 98 users wouldn't be able to use the > built-ins in constant expressions (C++ 98 doesn't allow > casting a null pointer in those contexts). I can't imagine that C++98 users care about using these built-ins in constant expressions. Jason