sizeof for numeric constant : disabled check. see ticket #3179

lib/checkother.cpp

@@ -333,6 +333,11 @@ void CheckOther::fflushOnInputStreamError(const Token *tok, const std::string &v
 //---------------------------------------------------------------------------
 void CheckOther::checkSizeofForNumericParameter()
 {
+    // TODO: write sensible error message if char constant is used
+    //       see ticket #3179
+    if (!_settings->experimental)
+        return;
+
     for (const Token *tok = _tokenizer->tokens(); tok; tok = tok->next()) {
         if (Token::Match(tok, "sizeof ( %num% )")
             || Token::Match(tok, "sizeof %num%")

test/testother.cpp

@@ -3070,25 +3070,29 @@ private:
     void sizeofForNumericParameter() {
         check("void f() {\n"
               "    std::cout << sizeof(10) << std::endl;\n"
-              "}\n"
+              "}\n",
+              NULL, true
              );
         ASSERT_EQUALS("[test.cpp:2]: (error) Using sizeof with a numeric constant as function argument might not be what you intended.\n", errout.str());
 
         check("void f() {\n"
               "    std::cout << sizeof(-10) << std::endl;\n"
-              "}\n"
+              "}\n",
+              NULL, true
              );
         ASSERT_EQUALS("[test.cpp:2]: (error) Using sizeof with a numeric constant as function argument might not be what you intended.\n", errout.str());
 
         check("void f() {\n"
               "    std::cout << sizeof 10  << std::endl;\n"
-              "}\n"
+              "}\n",
+              NULL, true
              );
         ASSERT_EQUALS("[test.cpp:2]: (error) Using sizeof with a numeric constant as function argument might not be what you intended.\n", errout.str());
 
         check("void f() {\n"
               "    std::cout << sizeof -10  << std::endl;\n"
-              "}\n"
+              "}\n",
+              NULL, true
              );
         ASSERT_EQUALS("[test.cpp:2]: (error) Using sizeof with a numeric constant as function argument might not be what you intended.\n", errout.str());