Fixed #3058 (False positive: Uninitialized variable: data)

lib/checkuninitvar.cpp

@@ -510,7 +510,11 @@ private:
             // Used..
             if (Token::Match(tok.previous(), "[[(,+-*/|=] %var% ]|)|,|;|%op%"))
             {
-                use(checks, &tok);
+                // initialize reference variable
+                if (Token::Match(tok.tokAt(-3), "& %var% ="))
+                    bailOutVar(checks, tok.varId());
+                else
+                    use(checks, &tok);
                 return &tok;
             }
 

test/testuninitvar.cpp

@@ -155,6 +155,13 @@ private:
                        "}\n");
         ASSERT_EQUALS("", errout.str());
 
+        checkUninitVar("void foo()\n"
+                       "{\n"
+                       "    int *x;\n"
+                       "    int *&y = x;\n"
+                       "}\n");
+        ASSERT_EQUALS("", errout.str());
+
         checkUninitVar("void foo()\n"
                        "{\n"
                        "    int x = xyz::x;\n"