std::tuple<std::string,int,float> tup1("first tuple",3,4.17);
std::tuple<std::string,int,double> tup2= std::make_tuple("second tuple",4,1.1);
std::vector < std::tuple<std::string,int,float > > tupVec;
tupVec.push_back(tup1);
bool a= tup1 < tup2;
std::string str= std::get<0>(tup1);
std::get<0>(tup2)= "Second Tuple";