template <typename T>
T addMe(T a, T b){
    return a+b;
};
  
std::function<std::string(std::string)> addString = std::bind(addMe<std::string>,"first",_1); 
std::cout << addString("second") << std::endl;

auto addString2= std::bind(addMe<std::string>, "first",_1);
std::cout << addString2("second") << std::endl;

std::vector<int> myVec{1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20};

std::copy_if( myVec.begin(), myVec.end(),
              std::ostream_iterator<int>( std::cout, ", " ),
	      std::bind( std::logical_and<bool>(),
		   std::bind( std::greater <int>(),_1,9 ),
	           std::bind( std::less <int>(),_1,16 )));

std::copy_if( myVec.begin(), myVec.end(),
              std::ostream_iterator<int>( std::cout, ", " ),
              [](int a){ return (a>9)&&(a<16);});