1 files changed, 11 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/warn/unused-result1-Werror.c b/gcc/testsuite/g++.dg/warn/unused-result1-Werror.c
new file mode 100644
index 000000000..fc14469c3
--- /dev/null
+++ b/gcc/testsuite/g++.dg/warn/unused-result1-Werror.c
@@ -0,0 +1,11 @@
+// PR 40614
+// { dg-options "-Werror=unused-result" }
+/* { dg-message "some warnings being treated as errors" "" {target "*-*-*"} 0 } */
+class QByteArray {
+public:
+  QByteArray(const QByteArray &);
+};
+class QString {
+  QByteArray toLocal8Bit() const __attribute__ ((warn_unused_result));
+  void fooWarnHere() const { toLocal8Bit(); } // { dg-error "ignoring" }
+};