class TAKDIRECTORY
{
 private:
#ifdef __WIN32__
  WIN32_FIND_DATA dir;
  HANDLE ff;
#else
  DIR * dir;
#endif
  bool fIsItDir;
 public:
  TAKDIRECTORY(const string& dn);
  ~TAKDIRECTORY();
  string getFile();
  inline bool isItDir(){return fIsItDir;};
};
TAKDIRECTORY::TAKDIRECTORY(const string& dn)
{
#ifdef __WIN32__
 string dn_=dn;
 memset((char*)&dir, 0 ,sizeof(dir));
 ff=FindFirstFile(dn.c_str(),&dir);
 //if (ff==INVALID_HANDLE_VALUE) throw("Can not open directory.");
#else
 dir=opendir(dn.c_str());
#endif
}
string TAKDIRECTORY::getFile()
{
#ifdef __WIN32__
 string res=(char*)&dir.cFileName;
 fIsItDir=(dir.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)> 0 ;
 memset((char*)&dir, 0 ,sizeof(dir));
 FindNextFile(ff,&dir);
 return res;
#else
 struct dirent * de;
 de=readdir(dir);
 if (de==NULL)
   return "";
 fIsItDir=(de->d_type==DT_DIR);
 return &de->d_name[ 0 ];
#endif
}
TAKDIRECTORY::~TAKDIRECTORY()
{
#ifdef __WIN32__
 FindClose(ff);
#else
 closedir(dir);
#endif
}