From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by sourceware.org (Postfix) with ESMTPS id 8BCC23858CDA for ; Sat, 24 Sep 2022 00:07:56 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 8BCC23858CDA Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=redhat.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1663978076; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=bcgy6Gws4QQaFPKsf+rvcDemwRGgGW9doowNSVXQUhw=; b=P4at2qwR2sIQDNDgA/PYzieKnf/IJAA2EvqLT/qT4vVl/r6/aOMTvGii8tRQbE4cu0EoCn Zet84a7QnfqM40KzSQZdx8QQmMl5ppDQqLIQmTeq/Wy+mKUVYtPVLjSIW1w+9/QpEHxQM3 f1FZakRAykkfnZc0erBI7+R0lEXWmfQ= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-662-fVcHp1KyOgSlpiTKgPZUyQ-1; Fri, 23 Sep 2022 20:07:54 -0400 X-MC-Unique: fVcHp1KyOgSlpiTKgPZUyQ-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.rdu2.redhat.com [10.11.54.8]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 800E4185A78B; Sat, 24 Sep 2022 00:07:54 +0000 (UTC) Received: from localhost (unknown [10.33.36.214]) by smtp.corp.redhat.com (Postfix) with ESMTP id 4793AC15BA5; Sat, 24 Sep 2022 00:07:54 +0000 (UTC) From: Jonathan Wakely To: libstdc++@gcc.gnu.org, gcc-patches@gcc.gnu.org Subject: [committed] libstdc++: Add test for type traits not having friend access Date: Sat, 24 Sep 2022 01:07:53 +0100 Message-Id: <20220924000753.1717363-1-jwakely@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.8 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-12.3 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,GIT_PATCH_0,RCVD_IN_DNSWL_LOW,SPF_HELO_NONE,SPF_NONE,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 List-Id: Tested powerpc64le-linux. Pushed to trunk. -- >8 -- This ensures that the std::is_assignable and std::is_assignable_v traits are evaluated "in a context unrelated" to the argument types. libstdc++-v3/ChangeLog: * testsuite/20_util/is_assignable/requirements/access.cc: New test. --- .../is_assignable/requirements/access.cc | 22 +++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 libstdc++-v3/testsuite/20_util/is_assignable/requirements/access.cc diff --git a/libstdc++-v3/testsuite/20_util/is_assignable/requirements/access.cc b/libstdc++-v3/testsuite/20_util/is_assignable/requirements/access.cc new file mode 100644 index 00000000000..a96fba654cd --- /dev/null +++ b/libstdc++-v3/testsuite/20_util/is_assignable/requirements/access.cc @@ -0,0 +1,22 @@ +// { dg-do compile { target c++11 } } + +#include + +class S { + operator int(); + friend void g(); // #1 +}; + +void +g() +{ + int i = 0; + S s; + i = s; // this works, because we're inside a friend. + + // But the traits are evaluated in "a context unrelated to either type". + static_assert( ! std::is_assignable::value, "unfriendly"); +#if __cplusplus >= 201703L + static_assert( ! std::is_assignable_v, "unfriendly"); +#endif +} -- 2.37.3