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icalduration.h

/* -*- Mode: C -*- */
/*======================================================================
 FILE: icalduration.h
 CREATOR: eric 26 Jan 2001


 $Id: icalduration.h,v 1.5 2008-01-15 23:17:40 dothebart Exp $
 $Locker:  $

 (C) COPYRIGHT 2000, Eric Busboom <eric@softwarestudio.org>
     http://www.softwarestudio.org

 This program is free software; you can redistribute it and/or modify
 it under the terms of either: 

    The LGPL as published by the Free Software Foundation, version
    2.1, available at: http://www.fsf.org/copyleft/lesser.html

  Or:

    The Mozilla Public License Version 1.0. You may obtain a copy of
    the License at http://www.mozilla.org/MPL/

 The Original Code is eric. The Initial Developer of the Original
 Code is Eric Busboom


======================================================================*/

#ifndef ICALDURATION_H
#define ICALDURATION_H

#include "icaltime.h"

struct icaldurationtype
{
      int is_neg;
      unsigned int days;
      unsigned int weeks;
      unsigned int hours;
      unsigned int minutes;
      unsigned int seconds;
};

struct icaldurationtype icaldurationtype_from_int(int t);
struct icaldurationtype icaldurationtype_from_string(const char*);
int icaldurationtype_as_int(struct icaldurationtype duration);
char* icaldurationtype_as_ical_string(struct icaldurationtype d);
struct icaldurationtype icaldurationtype_null_duration(void);
struct icaldurationtype icaldurationtype_bad_duration(void);
int icaldurationtype_is_null_duration(struct icaldurationtype d);
int icaldurationtype_is_bad_duration(struct icaldurationtype d);

struct icaltimetype  icaltime_add(struct icaltimetype t,
                          struct icaldurationtype  d);

struct icaldurationtype  icaltime_subtract(struct icaltimetype t1,
                                 struct icaltimetype t2);

#endif /* !ICALDURATION_H */




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