Split string by single spaces [duplicate]

Answer 1

If you are averse to boost, you can use regular old operator>>, along with std::noskipws:

EDIT: updates after testing.

#include 
#include 
#include 
#include 
#include 
#include 
#include 

void split(const std::string& str, std::vector& v) {
  std::stringstream ss(str);
  ss >> std::noskipws;
  std::string field;
  char ws_delim;
  while(1) {
    if( ss >> field )
      v.push_back(field);
    else if (ss.eof())
      break;
    else
      v.push_back(std::string());
    ss.clear();
    ss >> ws_delim;
  }
}

int main() {
  std::vector v;
  split("hello world  how are   you", v);
  std::copy(v.begin(), v.end(), std::ostream_iterator(std::cout, "-"));
  std::cout << "\n";
}

http://ideone.com/62McC