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-rw-r--r--compilerplugins/clang/test/stringloop.cxx41
1 files changed, 41 insertions, 0 deletions
diff --git a/compilerplugins/clang/test/stringloop.cxx b/compilerplugins/clang/test/stringloop.cxx
new file mode 100644
index 0000000000..7a02cd9ceb
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+++ b/compilerplugins/clang/test/stringloop.cxx
@@ -0,0 +1,41 @@
+/* -*- 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 "sal/config.h"
+#include "rtl/string.hxx"
+#include "rtl/ustring.hxx"
+
+#pragma clang diagnostic ignored "-Wunknown-warning-option" // for Clang < 13
+#pragma clang diagnostic ignored "-Wunused-but-set-variable"
+
+struct Foo
+{
+ OUString m_field; // expected-note {{field here [loplugin:stringloop]}}
+ void func1()
+ {
+ for (int i = 0; i < 10; ++i)
+ m_field += "xxx";
+ // expected-error@-1 {{appending to OUString in loop, rather use OUStringBuffer [loplugin:stringloop]}}
+ // no warning expected
+ m_field += "xxx";
+ }
+};
+
+void func2()
+{
+ OUString s; // expected-note {{var here [loplugin:stringloop]}}
+ for (int i = 0; i < 10; ++i)
+ s += "xxx"; // expected-error {{appending to OUString in loop, rather use OUStringBuffer [loplugin:stringloop]}}
+
+ // no warning expected
+ OUString s2;
+ s2 += "xxx";
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */