Fixed #3497 (False positive: Uninitialized variable)

lib/checkuninitvar.cpp

@@ -474,7 +474,13 @@ private:
         if (tok.varId()) {
             // array variable passed as function parameter..
             if (Token::Match(tok.previous(), "[(,] %var% [+-,)]")) {
-                if (Token::Match(tok.previous(), "( %var% ) )| ="))
+                // skip ')'..
+                const Token *tok2 = tok.next();
+                while (tok2 && tok2->str() == ")")
+                    tok2 = tok2->next();
+
+                // variable is assigned like: "( %var% ) .. ="
+                if (Token::Match(tok.previous(), "( %var% )") && tok2 && tok2->str() == "=")
                     ExecutionPath::bailOutVar(checks, tok.varId());
                 else
                     use(checks, &tok);

test/testuninitvar.cpp

@@ -1139,6 +1139,13 @@ private:
                        "    return header[0];\n"
                        "}\n");
         ASSERT_EQUALS("", errout.str());
+
+        checkUninitVar("void f() {\n"    // Ticket #3497
+                       "    char header[1];\n"
+                       "    *((unsigned char*)((unsigned char *)(header))) = 0xff;\n"
+                       "    return header[0];\n"
+                       "}\n");
+        ASSERT_EQUALS("", errout.str());
     }
 
     // alloc..