Uninitialized variables: Fixed false negative in new checking when using while loops

lib/checkuninitvar.cpp

@@ -1197,8 +1197,8 @@ bool CheckUninitVar::checkScopeForVariable(const Token *tok, const Variable& var
         if (Token::Match(tok, "sizeof|typeof|offsetof|decltype ("))
             tok = tok->next()->link();
 
-        // for..
-        if (Token::simpleMatch(tok, "for (")) {
+        // for/while..
+        if (Token::Match(tok, "for|while (")) {
             // is variable initialized in for-head (don't report errors yet)?
             if (checkIfForWhileHead(tok->next(), var, true, false))
                 return true;

test/testuninitvar.cpp

@@ -2116,6 +2116,14 @@ private:
                         "}\n");
         ASSERT_EQUALS("[test.cpp:5]: (error) Uninitialized variable: x\n", errout.str());
 
+        checkUninitVar2("int f() {\n"
+                        "    int x;\n"
+                        "    while (foo)\n"
+                        "        if (bar) break;\n"
+                        "    return x;\n"
+                        "}\n");
+        ASSERT_EQUALS("[test.cpp:5]: (error) Uninitialized variable: x\n", errout.str());
+
         // if goto is simplified there might be conditions that are always true
         checkUninitVar2("void f() {\n"
                         "    int i;\n"