Fixed #805 (False positive: Member functions not handled correctly)

src/checkmemoryleak.cpp

@@ -523,6 +523,8 @@ const char * CheckMemoryLeakInFunction::call_func(const Token *tok, std::list<co
     int par = 1;
     int parlevel = 0;
 
+    const bool dot(tok->previous()->str() == ".");
+
     for (; tok; tok = tok->next())
     {
         if (tok->str() == "(")
@@ -542,6 +544,9 @@ const char * CheckMemoryLeakInFunction::call_func(const Token *tok, std::list<co
                 ++par;
             if (varid > 0 && Token::Match(tok, "[,()] %varid% [,()]", varid))
             {
+                if (dot)
+                    return "use";
+
                 const Token *ftok = _tokenizer->getFunctionTokenByName(funcname.c_str());
                 if (!ftok)
                     return "use";

test/testmemleak.cpp

@@ -271,6 +271,8 @@ private:
         // Unknown syntax
         TEST_CASE(unknownSyntax1);
         TEST_CASE(knownFunctions);
+
+        TEST_CASE(same_function_name);
     }
 
 
@@ -2393,6 +2395,18 @@ private:
               "}\n");
         ASSERT_EQUALS("[test.cpp:5]: (error) Memory leak: p\n", errout.str());
     }
+
+    void same_function_name()
+    {
+        check("void a(char *p)\n"
+              "{ }\n"
+              "void b()\n"
+              "{\n"
+              "    char *p = malloc(10);\n"
+              "    abc.a(p);\n"
+              "}\n");
+        ASSERT_EQUALS("", errout.str());
+    }
 };
 
 static TestMemleakInFunction testMemleakInFunction;