From patchwork Wed Mar 22 00:11:42 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ken Matsui X-Patchwork-Id: 66725 Return-Path: X-Original-To: patchwork@sourceware.org Delivered-To: patchwork@sourceware.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 0F9F23850851 for ; Wed, 22 Mar 2023 00:13:07 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 0F9F23850851 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1679443987; bh=+GkYx4jrsLFzd3ioKVwNJhOuK6sh6NaFmwnD3Hw7gF8=; h=To:Cc:Subject:Date:In-Reply-To:References:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From:Reply-To:From; b=XWGJaY/UyG/+8mvVYjTqU1/Ff9o+4LfvSP9vY+YslRieLQvVRoAP7sV/TdrIQWLK6 0HuAk83Fu4Gs2B+mnCLIv+w+KgKMTz6WluEWzyiUq6MytS/SlnFit+tQS0vVba5AkM 07Bgu3J+aYqzQr2XM/csC2SNJq+Kj4qgXoqMRihk= X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from mx0b-00641c01.pphosted.com (mx0b-00641c01.pphosted.com [205.220.177.146]) by sourceware.org (Postfix) with ESMTPS id 7F4483858D38; Wed, 22 Mar 2023 00:12:01 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 7F4483858D38 Received: from pps.filterd (m0247479.ppops.net [127.0.0.1]) by mx0a-00641c01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 32M011Ag011318; Wed, 22 Mar 2023 00:12:01 GMT Received: from mxout26.s.uw.edu (mxout26.s.uw.edu [140.142.234.176]) by mx0a-00641c01.pphosted.com (PPS) with ESMTPS id 3pfn25gu7m-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 22 Mar 2023 00:12:00 +0000 Received: from smtp.washington.edu (smtp.washington.edu [128.208.60.54]) by mxout26.s.uw.edu (8.14.4+UW20.07/8.14.4+UW22.04) with ESMTP id 32M0BqEZ009530 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 21 Mar 2023 17:11:52 -0700 X-Auth-Received: from localhost.localdomain ([10.154.74.245]) (authenticated authid=kmatsui) by smtp.washington.edu (8.16.1+UW21.10/8.14.4+UW19.10) with ESMTPSA id 32M0BkhQ014035 (version=TLSv1.2 cipher=DHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Tue, 21 Mar 2023 17:11:52 -0700 X-UW-Orig-Sender: kmatsui@smtp.washington.edu To: gcc-patches@gcc.gnu.org Cc: libstdc++@gcc.gnu.org, ppalka@redhat.com, Ken Matsui Subject: [PATCH 2/2] libstdc++: use new built-in trait __is_const Date: Tue, 21 Mar 2023 17:11:42 -0700 Message-Id: <20230322001142.13422-2-kmatsui@cs.washington.edu> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230322001142.13422-1-kmatsui@cs.washington.edu> References: <20230322001142.13422-1-kmatsui@cs.washington.edu> MIME-Version: 1.0 X-Proofpoint-ORIG-GUID: gZorNdi2GoTuAB75Jb3mU3lxe3zdDF9Y X-Proofpoint-GUID: gZorNdi2GoTuAB75Jb3mU3lxe3zdDF9Y X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.942,Hydra:6.0.573,FMLib:17.11.170.22 definitions=2023-03-21_11,2023-03-21_01,2023-02-09_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 bulkscore=0 lowpriorityscore=0 suspectscore=0 adultscore=0 mlxscore=0 phishscore=0 mlxlogscore=999 clxscore=1015 priorityscore=1501 spamscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2303150002 definitions=main-2303210190 X-Spam-Status: No, score=-14.3 required=5.0 tests=BAYES_00, GIT_PATCH_0, KAM_DMARC_STATUS, RCVD_IN_DNSWL_LOW, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Ken Matsui via Gcc-patches From: Ken Matsui Reply-To: Ken Matsui Errors-To: gcc-patches-bounces+patchwork=sourceware.org@gcc.gnu.org Sender: "Gcc-patches" This patch lets libstdc++ use new built-in trait __is_const. libstdc++-v3/ChangeLog: * include/std/type_traits (is_const): Use __is_const built-in trait. --- libstdc++-v3/include/std/type_traits | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits index 2bd607a8b8f..e77de828501 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -764,6 +764,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION // Type properties. /// is_const +#if __has_builtin(__is_const) + template + struct is_const + : public __bool_constant<__is_const(_Tp)> + { }; +#else template struct is_const : public false_type { }; @@ -771,6 +777,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION template struct is_const<_Tp const> : public true_type { }; +#endif /// is_volatile template