From patchwork Wed Feb 21 09:35:51 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ken Matsui X-Patchwork-Id: 204085 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:693c:2685:b0:108:e6aa:91d0 with SMTP id mn5csp931708dyc; Wed, 21 Feb 2024 01:45:25 -0800 (PST) X-Forwarded-Encrypted: i=3; AJvYcCUgivqOJChTdDnT4cQT+Ripl+9k0sUjIwVdPxX/Ea10NIT0Uwff+Xc1HNvTGxifB2WzwdnegVzBjSPXoKpJRJTMUOl3Vg== X-Google-Smtp-Source: AGHT+IEtKr3ad6zEAABRD4oX8++9bjb76RLH/VOOIUxbplp0BDEMUfqm4D4XmU1vWjJobZPChvpT X-Received: by 2002:a0c:cd02:0:b0:68f:2f2d:cfd with SMTP id b2-20020a0ccd02000000b0068f2f2d0cfdmr20189655qvm.53.1708508725163; Wed, 21 Feb 2024 01:45:25 -0800 (PST) ARC-Seal: i=2; a=rsa-sha256; t=1708508725; cv=pass; d=google.com; s=arc-20160816; b=OpD+6e3xl02kHaudqmKEIixQhAQl7Gb4cefB8rXMDoU6cowdHNaZBFOnRqvu+Ys75u XUzOXY1ELyj+ZTeVsDT+2Yxg53d6wvd7dlw3Zw1ptb0gLoPHbYFfs8s95xjaiV1VrtYp 6ivDpf3uPNlKNoq+unZy6bev240g3h5NURAa2mVQxPVlYfJmo1YmeoXyrRxmBFmAuLWc P9AtsO6smIg7p92Xj6QogjVX0v7ix5DHAJ0kEmlJEPf4PxPZM6QGjHKedZR+w6KQjyci kEzPUiJqbVLWc+E+RXriVn+qfd71z2igolLoiqbSAwbx57qEuqrRyMda5PdOjNx9VJlA RRgg== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=errors-to:list-subscribe:list-help:list-post:list-archive :list-unsubscribe:list-id:precedence:content-transfer-encoding :mime-version:references:in-reply-to:message-id:date:subject:cc:to :from:arc-filter:dmarc-filter:delivered-to:dkim-signature :dkim-filter; bh=Q0lWQqbKiC1JbFdc+ZgAlIJ+IJJBx+Gv0I8Xq+A0Enw=; fh=kSSy/oyUXqQD15FLeKdymIgDBFPFITPA1Gj52CNOxRQ=; b=MSxVv+onCz2uBsTd2HgtexqmuWIgyN0ZJK6wQJmw/NIo1wxnwJgKoCIosJDfn067OC VTQ9x6lGYwgEILlFXGvQdlv5E2h8LbrUz+YQbci4XnykrRAQM2PLxft38dAYJtLRhQGM kpMPKk1JUt1dGerPkM780sPqlzOh5OkNs1J4ulvnh+/EfqjLot2R3LWzdALr2l86zRK2 m4JmM766qKJRcgTMN4TgBAwyV9X0QRUBj5gO9ZjwMZnCkzu8NpkoX4qwO+nTdB4F4vKK n+KUM0PXi72qN1ubFYoIgKl0csRqi+uw7zk9lUH92BGOoBi/TdW32bskPLirn+dkbVeP B2QA==; dara=google.com ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@gcc.gnu.org header.s=default header.b=bmRiEDl1; arc=pass (i=1); spf=pass (google.com: domain of gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org designates 8.43.85.97 as permitted sender) smtp.mailfrom="gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=gnu.org Received: from server2.sourceware.org (server2.sourceware.org. [8.43.85.97]) by mx.google.com with ESMTPS id h15-20020a0562140daf00b0068f12128636si10597237qvh.21.2024.02.21.01.45.25 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 21 Feb 2024 01:45:25 -0800 (PST) Received-SPF: pass (google.com: domain of gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org designates 8.43.85.97 as permitted sender) client-ip=8.43.85.97; Authentication-Results: mx.google.com; dkim=pass header.i=@gcc.gnu.org header.s=default header.b=bmRiEDl1; arc=pass (i=1); spf=pass (google.com: domain of gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org designates 8.43.85.97 as permitted sender) smtp.mailfrom="gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=gnu.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id C74433858D38 for ; Wed, 21 Feb 2024 09:45:24 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org C74433858D38 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1708508724; bh=Q0lWQqbKiC1JbFdc+ZgAlIJ+IJJBx+Gv0I8Xq+A0Enw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=bmRiEDl1wlNqXZnJRXpCbevWX82rqzZYPsvHQc8cSIFd9HnR50ZdSixbaqU3xp7PB hvMrLZqn3h2YU8fBZ8saZZD5nOIZIJGccOcleAyBhB274yq6px64vKH7UkbV7jOS8h v4cxnrhqYDT1wsEKkO84z3Sy0Qs7jlgGKB8CS1bc= 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 2C0F73858428; Wed, 21 Feb 2024 09:36:48 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 2C0F73858428 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=gcc.gnu.org Authentication-Results: sourceware.org; spf=fail smtp.mailfrom=gcc.gnu.org ARC-Filter: OpenARC Filter v1.0.0 sourceware.org 2C0F73858428 Authentication-Results: server2.sourceware.org; arc=none smtp.remote-ip=205.220.177.146 ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1708508210; cv=none; b=ozHITPjrr8nkAlzlY22dPkFp6t3WWaD27Af6EmAPVWwp5b36TvkLX0b1HzaAPPvLmZpONL5OFIWI4Mj2iZoVDESWF2XbXf4IcT5eHCNF15WhlBbE18tTed6tuCBtg5g3do9PL5JRTnXWqnMoPoiOeDkmQA/8P7ahPG+SsburoNY= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1708508210; c=relaxed/simple; bh=8/IM7Z4q4yzteY67QWSJCJvSGTtdvHFYMrUlN1BrvF8=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=bCTG3rzcCW4wSJEgwokuJ9UOuy/r7DmXWFOINcUzglJVevIKSoslj6p/wzUBHh2GQ5W+E+4s4bx+Q+t6yJGgTsfaPOjG8MlDt0279gw9S2ixcXbOHsq6hVWA4Lca54ecxx4T4TSldPL0UvCEroaFbNDR3ViSBJK/LaiPM41hEAI= ARC-Authentication-Results: i=1; server2.sourceware.org Received: from pps.filterd (m0247478.ppops.net [127.0.0.1]) by mx0a-00641c01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 41L9YgGZ005956; Wed, 21 Feb 2024 09:36:47 GMT Received: from mxout26.s.uw.edu (mxout26.s.uw.edu [140.142.234.176]) by mx0a-00641c01.pphosted.com (PPS) with ESMTPS id 3wd56h35t9-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 21 Feb 2024 09:36:47 +0000 Received: from smtp.washington.edu (smtp.washington.edu [128.208.60.132]) by mxout26.s.uw.edu (8.14.4+UW20.07/8.14.4+UW24.02) with ESMTP id 41L9aKJS000595 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 21 Feb 2024 01:36:20 -0800 X-Auth-Received: from kmatsui-ThinkPad-X1-Carbon-Gen-9.dhcp4.washington.edu ([10.154.74.128]) (authenticated authid=kmatsui) by smtp.washington.edu (8.16.1+UW21.10/8.14.4+UW24.02) with ESMTPSA id 41L9aJVR002942 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 21 Feb 2024 01:36:20 -0800 X-UW-Orig-Sender: kmatsui@smtp.washington.edu From: Ken Matsui To: gcc-patches@gcc.gnu.org Cc: libstdc++@gcc.gnu.org, Ken Matsui Subject: [PATCH v13 01/26] c++: Implement __is_const built-in trait Date: Wed, 21 Feb 2024 01:35:51 -0800 Message-ID: <20240221093616.4001742-1-kmatsui@gcc.gnu.org> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240221085142.3779280-26-kmatsui@gcc.gnu.org> References: <20240221085142.3779280-26-kmatsui@gcc.gnu.org> MIME-Version: 1.0 X-Proofpoint-GUID: B-AkHpde-Z0XQLNpu4I80umC9sG4mm5g X-Proofpoint-ORIG-GUID: B-AkHpde-Z0XQLNpu4I80umC9sG4mm5g X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-02-20_06,2024-02-20_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 spamscore=0 malwarescore=0 bulkscore=0 phishscore=0 mlxscore=0 adultscore=0 impostorscore=0 lowpriorityscore=0 clxscore=1034 mlxlogscore=704 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2402210074 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, 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: 2.1.30 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1791501245075839133 X-GMAIL-MSGID: 1791501245075839133 This patch implements built-in trait for std::is_const. gcc/cp/ChangeLog: * cp-trait.def: Define __is_const. * constraint.cc (diagnose_trait_expr): Handle CPTK_IS_CONST. * semantics.cc (trait_expr_value): Likewise. (finish_trait_expr): Likewise. gcc/testsuite/ChangeLog: * g++.dg/ext/has-builtin-1.C: Test existence of __is_const. * g++.dg/ext/is_const.C: New test. Signed-off-by: Ken Matsui --- gcc/cp/constraint.cc | 3 +++ gcc/cp/cp-trait.def | 1 + gcc/cp/semantics.cc | 4 ++++ gcc/testsuite/g++.dg/ext/has-builtin-1.C | 3 +++ gcc/testsuite/g++.dg/ext/is_const.C | 20 ++++++++++++++++++++ 5 files changed, 31 insertions(+) create mode 100644 gcc/testsuite/g++.dg/ext/is_const.C diff --git a/gcc/cp/constraint.cc b/gcc/cp/constraint.cc index 49de3211d4c..f32a1c78d63 100644 --- a/gcc/cp/constraint.cc +++ b/gcc/cp/constraint.cc @@ -3767,6 +3767,9 @@ diagnose_trait_expr (tree expr, tree args) case CPTK_IS_CLASS: inform (loc, " %qT is not a class", t1); break; + case CPTK_IS_CONST: + inform (loc, " %qT is not a const type", t1); + break; case CPTK_IS_CONSTRUCTIBLE: if (!t2) inform (loc, " %qT is not default constructible", t1); diff --git a/gcc/cp/cp-trait.def b/gcc/cp/cp-trait.def index 394f006f20f..36faed9c0b3 100644 --- a/gcc/cp/cp-trait.def +++ b/gcc/cp/cp-trait.def @@ -64,6 +64,7 @@ DEFTRAIT_EXPR (IS_ASSIGNABLE, "__is_assignable", 2) DEFTRAIT_EXPR (IS_BASE_OF, "__is_base_of", 2) DEFTRAIT_EXPR (IS_BOUNDED_ARRAY, "__is_bounded_array", 1) DEFTRAIT_EXPR (IS_CLASS, "__is_class", 1) +DEFTRAIT_EXPR (IS_CONST, "__is_const", 1) DEFTRAIT_EXPR (IS_CONSTRUCTIBLE, "__is_constructible", -1) DEFTRAIT_EXPR (IS_CONVERTIBLE, "__is_convertible", 2) DEFTRAIT_EXPR (IS_EMPTY, "__is_empty", 1) diff --git a/gcc/cp/semantics.cc b/gcc/cp/semantics.cc index 57840176863..0d08900492b 100644 --- a/gcc/cp/semantics.cc +++ b/gcc/cp/semantics.cc @@ -12446,6 +12446,9 @@ trait_expr_value (cp_trait_kind kind, tree type1, tree type2) case CPTK_IS_CLASS: return NON_UNION_CLASS_TYPE_P (type1); + case CPTK_IS_CONST: + return CP_TYPE_CONST_P (type1); + case CPTK_IS_CONSTRUCTIBLE: return is_xible (INIT_EXPR, type1, type2); @@ -12688,6 +12691,7 @@ finish_trait_expr (location_t loc, cp_trait_kind kind, tree type1, tree type2) case CPTK_IS_ARRAY: case CPTK_IS_BOUNDED_ARRAY: case CPTK_IS_CLASS: + case CPTK_IS_CONST: case CPTK_IS_ENUM: case CPTK_IS_FUNCTION: case CPTK_IS_MEMBER_FUNCTION_POINTER: diff --git a/gcc/testsuite/g++.dg/ext/has-builtin-1.C b/gcc/testsuite/g++.dg/ext/has-builtin-1.C index 02b4b4d745d..e3640faeb96 100644 --- a/gcc/testsuite/g++.dg/ext/has-builtin-1.C +++ b/gcc/testsuite/g++.dg/ext/has-builtin-1.C @@ -71,6 +71,9 @@ #if !__has_builtin (__is_class) # error "__has_builtin (__is_class) failed" #endif +#if !__has_builtin (__is_const) +# error "__has_builtin (__is_const) failed" +#endif #if !__has_builtin (__is_constructible) # error "__has_builtin (__is_constructible) failed" #endif diff --git a/gcc/testsuite/g++.dg/ext/is_const.C b/gcc/testsuite/g++.dg/ext/is_const.C new file mode 100644 index 00000000000..8a0e8df72a9 --- /dev/null +++ b/gcc/testsuite/g++.dg/ext/is_const.C @@ -0,0 +1,20 @@ +// { dg-do compile { target c++11 } } + +#define SA(X) static_assert((X),#X) + +class ClassType { }; +using cClassType = const ClassType; +using vClassType = volatile ClassType; +using cvClassType = const volatile ClassType; + +// Positive tests. +SA(__is_const(const int)); +SA(__is_const(const volatile int)); +SA(__is_const(cClassType)); +SA(__is_const(cvClassType)); + +// Negative tests. +SA(!__is_const(int)); +SA(!__is_const(volatile int)); +SA(!__is_const(ClassType)); +SA(!__is_const(vClassType));