---

MySQLaux 0.6 is free software from written by Thomas Langen.

---

                 

---

MySQLaux/Date.h

Go to the documentation of this file.

/* 
 * MySQLaux - auxiliary classes for communication with MySQL databases
 * Copyright © 2001  Thomas Langen (mailto:langen@langensoft.com)
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 * 
 * $Source: Date.h $
 * $Id: Date.h 1.3 Fri, 06 Apr 2001 10:30:48 +0200 langen $
 * $ProjectHeader: MySQLaux 0.6 Fri, 06 Apr 2001 10:30:48 +0200 langen $
 */

#ifndef __MySQLaux_Date_h__
#define __MySQLaux_Date_h__

#include "Exception.h"
#include <string>
#include <sstream>

namespace MySQLaux
{
  class InvalidDate
    : public Exception
  {
  public:
    inline string asString() const throw() 
    {
      return "Invalid date";
    }
  };
  
  class Date
  {
  private:
    unsigned _year;  // 1000 .. 9999, 0 means invalid date
    unsigned _month; // 1 .. 12, 0 means invalid date
    unsigned _day;   // 1 .. 31, 0 means invalid date
  public:
    Date (const char * s) throw (InvalidDate);
    
    inline Date () throw() { _year = _month = _day = 0; }
    
    inline unsigned day() const throw (InvalidDate)
    {
      if (_day == 0 || _day > 31)
        throw InvalidDate();
      return _day;
    }
    
    inline unsigned month() const throw (InvalidDate)
    {
      if (_month == 0 || _month > 12)
        throw InvalidDate();
      return _month;
    }
    
    inline unsigned year() const throw (InvalidDate)
    {
      if (_year < 1000 | _year > 9999)
        throw InvalidDate();
      return _year;
    }
    
    string asString(unsigned format) const throw (InvalidDate);
    
    unsigned long asBCD () const throw (InvalidDate);
  };
}

bool operator<  (MySQLaux::Date const & date1, 
                 MySQLaux::Date const & date2) 
  throw (MySQLaux::InvalidDate);

bool operator== (MySQLaux::Date const & date1, 
                 MySQLaux::Date const & date2) 
  throw (MySQLaux::InvalidDate);

inline bool operator<= (MySQLaux::Date const & date1, 
                        MySQLaux::Date const & date2) 
  throw (MySQLaux::InvalidDate)
{
  return (date1 < date2 || date1 == date2);
}

inline bool operator!= (MySQLaux::Date const & date1, 
                        MySQLaux::Date const & date2) 
  throw (MySQLaux::InvalidDate)
{
  return (!(date1 == date2));
}

inline bool operator>  (MySQLaux::Date const & date1, 
                        MySQLaux::Date const & date2) 
  throw (MySQLaux::InvalidDate)
{
  return (!(date1 < date2) && !(date1 == date2));
}

inline bool operator>= (MySQLaux::Date const & date1, 
                        MySQLaux::Date const & date2) 
  throw (MySQLaux::InvalidDate)
{
  return (!(date1 < date2));
}
std::ostream & operator<<(std::ostream & os, MySQLaux::Date const & date) throw (MySQLaux::InvalidDate);

std::istringstream & operator>>(std::istringstream & is, MySQLaux::Date & date)
  throw (MySQLaux::InvalidDate);

#endif // __MySQLaux_Date_h__


/*
 * Local Variables:
 * mode: C++
 * fill-column: 80
 * c-comment-continuation-stars: " * "
 * End:
 */

---