Uninitialized variables: Fixed false positive in for condition. Ticket: #3369

lib/checkuninitvar.cpp

@@ -1124,7 +1124,7 @@ bool CheckUninitVar::checkScopeForVariable(const Token *tok, const unsigned int
         }
 
         // TODO: handle loops, try, etc
-        if (Token::simpleMatch(tok, ") {") || Token::Match(tok, "%var% {")) {
+        if (tok->str() == "for" || Token::simpleMatch(tok, ") {") || Token::Match(tok, "%var% {")) {
             return true;
         }
 

test/testuninitvar.cpp

@@ -1792,6 +1792,14 @@ private:
                         "}\n");
         ASSERT_EQUALS("", errout.str());
 
+        checkUninitVar2("void f() {\n"
+                        "    int x;\n"
+                        "    for (int i = 0; i < 10; i += x) {\n"
+                        "        x = y;\n"
+                        "    }\n"
+                        "}\n");
+        ASSERT_EQUALS("", errout.str());
+
         // try
         checkUninitVar2("void f() {\n"
                         "    int i, *p = &i;\n"