#include <locale>
#include <iostream>
#include <string>
#include <boost/filesystem/path.hpp>

int main(void)
{
  std::wstring tmp;
  std::string pathname = "/some/filesystem/path/%%%%";
  
  boost::filesystem::path path(pathname);

  std::wcout << path.wstring() << std::endl;
  
  return 0;
}