From a360fc0595adb240312862a6308cbe8204d0d76f Mon Sep 17 00:00:00 2001
From: chrchr-github <78114321+chrchr-github@users.noreply.github.com>
Date: Thu, 29 Aug 2024 14:23:01 +0200
Subject: [PATCH] Update testclass.cpp

---
 test/testclass.cpp | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/test/testclass.cpp b/test/testclass.cpp
index bac96f1fc92..64913601b65 100644
--- a/test/testclass.cpp
+++ b/test/testclass.cpp
@@ -9083,6 +9083,23 @@ class TestClass : public TestFixture {
         ASSERT_EQUALS("[test.cpp:6]: (performance) Function 'get1()' should return member 'str' by const reference.\n"
                       "[test.cpp:9]: (performance) Function 'get2()' should return member 'strT' by const reference.\n",
                       errout_str());
+
+        checkReturnByReference("struct S { std::string str; };\n" // #13059
+                               "struct T {\n"
+                               "    S temp() const;\n"
+                               "    S s[1];\n"
+                               "};\n"
+                               "struct U {\n"
+                               "    std::string get1() const {\n"
+                               "        return t.temp().str;\n"
+                               "    }\n"
+                               "    std::string get2() const {\n"
+                               "        return t.s[0].str;\n"
+                               "    }\n"
+                               "    T t;\n"
+                               "};\n");
+        ASSERT_EQUALS("[test.cpp:10]: (performance) Function 'get2()' should return member 'str' by const reference.\n",
+                      errout_str());
     }
 };