Message ID | 20230330183911.12640-3-kmatsui@cs.washington.edu |
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State | Accepted |
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Thu, 30 Mar 2023 18:39:58 +0000 Received: from smtp.washington.edu (smtp.washington.edu [140.142.234.157]) by mxout21.s.uw.edu (8.14.4+UW20.07/8.14.4+UW22.04) with ESMTP id 32UIdhXq001255 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 30 Mar 2023 11:39:43 -0700 X-Auth-Received: from localhost.localdomain ([10.18.194.223]) (authenticated authid=kmatsui) by smtp.washington.edu (8.16.1+UW21.10/8.14.4+UW19.10) with ESMTPSA id 32UIdK7H001092 (version=TLSv1.2 cipher=DHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Thu, 30 Mar 2023 11:39:43 -0700 X-UW-Orig-Sender: kmatsui@smtp.washington.edu To: gcc-patches@gcc.gnu.org Cc: libstdc++@gcc.gnu.org, Ken Matsui <kmatsui@cs.washington.edu> Subject: [PATCH v2 2/7] libstdc++: use new built-in trait __is_reference for std::is_reference Date: Thu, 30 Mar 2023 11:39:06 -0700 Message-Id: <20230330183911.12640-3-kmatsui@cs.washington.edu> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230330183911.12640-1-kmatsui@cs.washington.edu> References: <20230326043032.11096-1-kmatsui@cs.washington.edu> <20230330183911.12640-1-kmatsui@cs.washington.edu> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-ORIG-GUID: HCzGdSr-l2BXT-F36rjruRQxOoSSITMk X-Proofpoint-GUID: HCzGdSr-l2BXT-F36rjruRQxOoSSITMk 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=2023-03-30_11,2023-03-30_03,2023-02-09_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 malwarescore=0 suspectscore=0 lowpriorityscore=0 clxscore=1015 adultscore=0 mlxlogscore=919 phishscore=0 impostorscore=0 priorityscore=1501 bulkscore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2303200000 definitions=main-2303300147 X-Spam-Status: No, score=-14.4 required=5.0 tests=BAYES_00, GIT_PATCH_0, KAM_DMARC_STATUS, RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H2, 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 <gcc-patches.gcc.gnu.org> List-Unsubscribe: <https://gcc.gnu.org/mailman/options/gcc-patches>, <mailto:gcc-patches-request@gcc.gnu.org?subject=unsubscribe> List-Archive: <https://gcc.gnu.org/pipermail/gcc-patches/> List-Post: <mailto:gcc-patches@gcc.gnu.org> List-Help: <mailto:gcc-patches-request@gcc.gnu.org?subject=help> List-Subscribe: <https://gcc.gnu.org/mailman/listinfo/gcc-patches>, <mailto:gcc-patches-request@gcc.gnu.org?subject=subscribe> From: Ken Matsui via Gcc-patches <gcc-patches@gcc.gnu.org> Reply-To: Ken Matsui <kmatsui@cs.washington.edu> Errors-To: gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org Sender: "Gcc-patches" <gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org> X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1761403419712597188?= X-GMAIL-MSGID: =?utf-8?q?1761819210621691962?= |
Series |
c++, libstdc++: get std::is_object to dispatch to new built-in traits
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Checks
Context | Check | Description |
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snail/gcc-patch-check | success | Github commit url |
Commit Message
Ken Matsui
March 30, 2023, 6:39 p.m. UTC
This patch gets std::is_reference to dispatch to new built-in trait
__is_reference.
libstdc++-v3/ChangeLog:
* include/std/type_traits (is_reference): Use __is_reference built-in
trait.
Signed-off-by: Ken Matsui <kmatsui@cs.washington.edu>
---
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..58a732735c8 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -639,6 +639,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION // Composite type categories. /// is_reference +#if __has_builtin(__is_reference) + template<typename _Tp> + struct is_reference + : public __bool_constant<__is_reference(_Tp)> + { }; +#else template<typename _Tp> struct is_reference : public false_type @@ -653,6 +659,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION struct is_reference<_Tp&&> : public true_type { }; +#endif /// is_arithmetic template<typename _Tp>