C++ 'Using space as a delimiter' -

i complete beginner in c++, , trying following program:

---

1. read sentence console.
2. break sentence words using space character delimiter.
3. iterate on each word, if word numeric value print value doubled, otherwise print out word, each output on own line.

---

i lost on how this. using space key delimiter.

can have following :

with std::stringstream , std::getline

std::string str; std::string temp; std::getline(std::cin,str);  std::stringstream ss(str);  while(getline(ss,temp, ' ')) // delimiter space {       std::stringstream stream(temp);       if(stream >> val)         std::cout<<2*val<<std::endl;       else          std::cout<<temp<<std::endl; } 

see demo