missingOverride: False positive with cv-ref mismatch (#1340)

lib/symboldatabase.cpp

@@ -3203,7 +3203,17 @@ const Function * Function::getOverridenFunctionRecursive(const ::Type* baseType,
                 }
 
                 // check for matching function parameters
-                if (match && argsMatch(baseType->classScope, func->argDef, argDef, emptyString, 0)) {
+                match = match && argsMatch(baseType->classScope, func->argDef, argDef, emptyString, 0);
+
+                // check for matching cv-ref qualifiers
+                match = match
+                    && isConst() == func->isConst()
+                    && isVolatile() == func->isVolatile()
+                    && hasRvalRefQualifier() == func->hasRvalRefQualifier()
+                    && hasLvalRefQualifier() == func->hasLvalRefQualifier();
+
+                // it's a match
+                if (match) {
                     return func;
                 }
             }

test/testclass.cpp

@@ -214,6 +214,7 @@ private:
         TEST_CASE(unsafeClassDivZero);
 
         TEST_CASE(override1);
+        TEST_CASE(overrideCVRefQualifiers);
     }
 
     void checkCopyCtorAndEqOperator(const char code[]) {
@@ -6827,6 +6828,24 @@ private:
                       "class Derived : Base { virtual void f() final; };");
         ASSERT_EQUALS("", errout.str());
     }
+
+    void overrideCVRefQualifiers() {
+        checkOverride("class Base { virtual void f(); };\n"
+                      "class Derived : Base { void f() const; }");
+        ASSERT_EQUALS("", errout.str());
+
+        checkOverride("class Base { virtual void f(); };\n"
+                      "class Derived : Base { void f() volatile; }");
+        ASSERT_EQUALS("", errout.str());
+
+        checkOverride("class Base { virtual void f(); };\n"
+                      "class Derived : Base { void f() &; }");
+        ASSERT_EQUALS("", errout.str());
+
+        checkOverride("class Base { virtual void f(); };\n"
+                      "class Derived : Base { void f() &&; }");
+        ASSERT_EQUALS("", errout.str());
+    }
 };
 
 REGISTER_TEST(TestClass)