#11472 FP returnTempReference with cast and scope operator (#4676)

Author: chrchr-github

lib/symboldatabase.cpp

@@ -5010,7 +5010,7 @@ const Type* SymbolDatabase::findVariableType(const Scope *start, const Token *ty
         // find start of qualified function name
         const Token *tok1 = typeTok;
 
-        while (Token::Match(tok1->tokAt(-2), "%type% ::") ||
+        while ((Token::Match(tok1->tokAt(-2), "%type% ::") && !tok1->tokAt(-2)->isKeyword()) ||
                (Token::simpleMatch(tok1->tokAt(-2), "> ::") && tok1->linkAt(-2) && Token::Match(tok1->linkAt(-2)->tokAt(-1), "%type%"))) {
             if (tok1->strAt(-1) == "::")
                 tok1 = tok1->tokAt(-2);

test/testautovariables.cpp

@@ -3750,6 +3750,16 @@ class TestAutoVariables : public TestFixture {
               "}\n",
               true);
         ASSERT_EQUALS("", errout.str());
+
+        // #11472
+        check("namespace N {\n"
+              "    struct T { int m; };\n"
+              "    int i;\n"
+              "    const T& f(const T* p) {\n"
+              "        return p != nullptr ? *p : *reinterpret_cast<const ::N::T*>(&i);\n"
+              "    }\n"
+              "}\n");
+        ASSERT_EQUALS("", errout.str());
     }
 
     void danglingLifetimeBorrowedMembers()