Отправлено ой 23 января 2004 г. 13:50 В ответ на: Спасибо за конструктивный ответ. отправлено Алехин Александр 23 января 2004 г. 13:41

/******************************************************************************
 * DESCRIPTION:
 * convert Date and Time to long seconds
 *****************************************************************************/
u32_t  DateTime_ToLong(Time_t *ttime) 
{
 u8_t  month;
 u16_t year;
 u32_t c,ya;
 u32_t res;
 
 	   month = ttime->month;
 	    year = ttime->year;
         if(month > 2)
             month -= 3;
         else {
			 month += 9;
			 year--;
		  }
            
	c  = year / 100;
   ya  = year - 100 * c;     
   res = (146097 * c)/4 + (1461 * ya)/4 + (153 * month + 2)/5 + ttime->day;
         			
  return (res - 720000) * 86400l + (ttime->hour * 60l + ttime->minute) * 60l + ttime->sec;
}
/******************************************************************************
 * DESCRIPTION:
 * convert long seconds to Date and Time
 *****************************************************************************/
void LongTo_DateTime(u32_t j,Time_t *ttime)
{
    u32_t d,m,y;
    u32_t date,t;
    
    	 date  = j/86400l;
    	 	 t = j - (date * 86400l);
    	 date += 720000;
    	 
		 y  = (4 * date - 1) / 146097;
         d  = (4 * date - 1 - 146097 * y) / 4l;
        
         date = (4 * d + 3) / 1461;
         
         d = (4 * d + 7 - 1461 * date) / 4l;
         m = (5 * d - 3) / 153;
         
         d = (5 * d + 2 - 153 * m) / 5l;     
         y = 100 * y + date;
         
         if (m < 10)
              m += 3;   
         else {
              m -= 9;
              y++;
		 }
         ttime->month  = m;
         ttime->year   = y;
         ttime->day    = d;
         
	     ttime->sec    = t % 60l;     t /= 60l;         
         ttime->hour   = t / 60l;
	     ttime->minute = t % 60l;
};