Detect invalid input and clear input stream, C++ STL

inputcheck.cpp

do{
  cout<<"Input \"1\" or \"0\": ";
  cin >> scenario;
    	
  if(cin.fail() || scenario < 0 || scenario > 1){
    cin.clear();	//clear failure state
	  cin.ignore(std::numeric_limits<std::streamsize>::max(), '\n');	//ignore and discard failed input up to and including newline
		cout << "\nInput failed. Trying again..." << endl;
		continue;	
  }
} while(false);