Use boost::algorithm::join(..):
#include <boost/algorithm/string/join.hpp>
...
std::string joinedString = boost::algorithm::join(elems, delim);
See also this question.
Use boost::algorithm::join(..):
#include <boost/algorithm/string/join.hpp>
...
std::string joinedString = boost::algorithm::join(elems, delim);
See also this question.