[Boost-users] [boost-users] tokenizer vs string algorithm split.

Hi I was wondering which one is better and faster to split a file of csv value of number and put it into container of double. 1.) Which option is better. // method 1. std::vectorstd::string split_string; boost::algorithm::trim(flist); boost::algorithm::split(split_string, flist, boost::algorithm::is_any_of(",")); std::vector<double> elements; BOOST_FOREACH(std::string s, split_string) { elements += boost::lexical_cast<double>(s); } // method 2. boost::char_separator<char> sep(","); boost::tokenizer tokens(flist, sep); std::vector<double> elements; BOOST_FOREACH(std::string token, tokens) { elements += boost::lexical_cast<double>(token); } 2.) When is it better to use string algorithm split instead of tokenizer and vice versa.