From patchwork Mon Jul 10 05:38:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ken Matsui X-Patchwork-Id: 1805519 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org (client-ip=8.43.85.97; helo=server2.sourceware.org; envelope-from=gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org; receiver=) Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=gcc.gnu.org header.i=@gcc.gnu.org header.a=rsa-sha256 header.s=default header.b=HehLZ9bj; dkim-atps=neutral Received: from server2.sourceware.org (ip-8-43-85-97.sourceware.org [8.43.85.97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-384) server-digest SHA384) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4QztBR01sxz20WT for ; Mon, 10 Jul 2023 15:40:14 +1000 (AEST) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id EFBCE385AFA0 for ; Mon, 10 Jul 2023 05:40:12 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org EFBCE385AFA0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1688967613; bh=+JD/Vslky0bbbFK3T5U0Cbw7UHATcDjBVe6fBqxto80=; 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=HehLZ9bj3UD2wcZzMuPbt11P0cKfuPbZvlZ1kVu0bhebi5zNNr7fdHoKRWHaSHxXC gMhiMXlDMvbMq/HaJaeqocfOYYwvnXLTzEiE00yF7YFiIxtotSHt8hu7oadCG6bydt yYhCU2YnWxe5r+q/Y4UFGKWcgYWSdSIdO3cJFvoA= 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 BA4DB3858D3C; Mon, 10 Jul 2023 05:39:54 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org BA4DB3858D3C Received: from pps.filterd (m0247476.ppops.net [127.0.0.1]) by mx0a-00641c01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 36A5aN5f022605; Mon, 10 Jul 2023 05:39:54 GMT Received: from mxout26.s.uw.edu (mxout26.s.uw.edu [140.142.234.176]) by mx0a-00641c01.pphosted.com (PPS) with ESMTPS id 3rqha3cr2d-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 10 Jul 2023 05:39:54 +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 36A5ddON012481 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sun, 9 Jul 2023 22:39:40 -0700 X-Auth-Received: from localhost.localdomain ([10.154.74.234]) (authenticated authid=kmatsui) by smtp.washington.edu (8.16.1+UW21.10/8.14.4+UW19.10) with ESMTPSA id 36A5cTwS016310 (version=TLSv1.2 cipher=DHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Sun, 9 Jul 2023 22:39:39 -0700 X-UW-Orig-Sender: kmatsui@smtp.washington.edu To: gcc-patches@gcc.gnu.org Cc: libstdc++@gcc.gnu.org, Ken Matsui Subject: [PATCH v2 2/2] libstdc++: use new built-in trait __is_pointer Date: Sun, 9 Jul 2023 22:38:28 -0700 Message-ID: <20230710053828.49793-2-kmatsui@gcc.gnu.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230710053828.49793-1-kmatsui@gcc.gnu.org> References: <20230710052310.48116-1-kmatsui@gcc.gnu.org> <20230710053828.49793-1-kmatsui@gcc.gnu.org> MIME-Version: 1.0 X-Proofpoint-GUID: ZhCZtq5akW00J8Vwf2ObPGBHtqMEFT1g X-Proofpoint-ORIG-GUID: ZhCZtq5akW00J8Vwf2ObPGBHtqMEFT1g X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-07-10_04,2023-07-06_02,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=750 impostorscore=0 phishscore=0 malwarescore=0 adultscore=0 spamscore=0 suspectscore=0 clxscore=1034 mlxscore=0 bulkscore=0 priorityscore=1501 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2305260000 definitions=main-2307100051 X-Spam-Status: No, score=-13.1 required=5.0 tests=BAYES_00, GIT_PATCH_0, JMQ_SPF_NEUTRAL, KAM_DMARC_STATUS, RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H2, SPF_HELO_NONE, SPF_NEUTRAL, TXREP, T_SCC_BODY_TEXT_LINE 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+incoming=patchwork.ozlabs.org@gcc.gnu.org Sender: "Gcc-patches" This patch lets libstdc++ use new built-in trait __is_pointer. libstdc++-v3/ChangeLog: * include/std/type_traits (is_pointer): Use __is_pointer built-in trait. (is_pointer_v): Likewise. Signed-off-by: Ken Matsui --- libstdc++-v3/include/std/type_traits | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits index 0e7a9c9c7f3..b8291a31d3e 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -515,6 +515,13 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION struct is_array<_Tp[]> : public true_type { }; + /// is_pointer +#if __has_builtin(__is_pointer) + template + struct is_pointer + : public __bool_constant<__is_pointer(_Tp)> + { }; +#else template struct __is_pointer_helper : public false_type { }; @@ -523,11 +530,11 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION struct __is_pointer_helper<_Tp*> : public true_type { }; - /// is_pointer template struct is_pointer : public __is_pointer_helper<__remove_cv_t<_Tp>>::type { }; +#endif /// is_lvalue_reference template @@ -3168,8 +3175,14 @@ template template inline constexpr bool is_array_v<_Tp[_Num]> = true; +#if __has_builtin(__is_pointer) +template + inline constexpr bool is_pointer_v = __is_pointer(_Tp); +#else template inline constexpr bool is_pointer_v = is_pointer<_Tp>::value; +#endif + template inline constexpr bool is_lvalue_reference_v = false; template