#ifndef __aspeller_data_util_hh__

#define __aspeller_data_util_hh__

#include <ctime>

//POSIX headers

#include <sys/stat.h>

#include "parm_string.hpp"

using namespace acommon;

namespace aspeller {

  template <class Itr>

  struct CharStrParms {

    typedef const char * Value;

    typedef Itr          Iterator;

    Iterator   end_;

    CharStrParms(Iterator e) : end_(e) {}

    bool endf(Iterator i) const {return i == end_;}

      Value deref(Iterator i) const {return *i;}

    Value end_state() const {return 0;}

  };

  template <class Itr>

  struct StrParms {

    typedef const char * Value;

    typedef Itr          Iterator;

    Iterator   end_;

    StrParms(Iterator e) : end_(e) {}

    bool endf(Iterator i) const {return i == end_;}

    Value deref(Iterator i) const {return i->c_str();}

    Value end_state() const {return 0;}

  };

  inline time_t modification_date(ParmString file) {

    struct stat file_stat;

    if (stat(file, &file_stat) == 0)

      return file_stat.st_mtime;

    else 

      return 0;

  }

}

#endif