Function StrCat

deps/google-benchmark/src/string_util.h:39–43

template <class... Args>
inline std::string StrCat(Args&&... args) {
  std::ostringstream ss;
  StrCatImp(ss, std::forward<Args>(args)...);
  return ss.str();
}

BENCHMARK_EXPORT
std::vector<std::string> StrSplit(const std::string& str, char delim);