Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 36 insertions, 0 deletions

diff --git a/compilerplugins/clang/test/classmemaccess.cxx b/compilerplugins/clang/test/classmemaccess.cxx
new file mode 100644
index 000000000..05bb457f8
--- /dev/null
+++ b/compilerplugins/clang/test/classmemaccess.cxx
@@ -0,0 +1,36 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <cstring>
+
+void f(struct Incomplete* p1, struct S* p2);
+
+struct S
+{
+    S();
+};
+
+void f(struct Incomplete* p1, struct S* p2)
+{
+    S s;
+    // expected-error@+1 {{writing to an object of non-trivial type 'S'; use assignment instead [loplugin:classmemaccess]}}
+    std::memset(&s, 0, sizeof s);
+    // expected-error@+1 {{writing to an object of non-trivial type 'S'; use assignment instead [loplugin:classmemaccess]}}
+    std::memset(static_cast<void*>(&s), 0, sizeof s);
+    auto const disableWarning = static_cast<void*>(&s);
+    std::memset(disableWarning, 0, sizeof s);
+    S a[1][1];
+    // expected-error@+1 {{writing to an object of non-trivial type 'S'; use assignment instead [loplugin:classmemaccess]}}
+    std::memset(a, 0, sizeof a);
+    std::memset(p1, 0, 10); // conservatively assume Incomplete may be trivial
+    // expected-error@+1 {{writing to an object of non-trivial type 'S'; use assignment instead [loplugin:classmemaccess]}}
+    std::memset(p2, 0, 10);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */