otime.cpp

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  while( lsecond < 0 )
  {
    lday    -- ;
    lsecond += SECOND_OF_DAY;
  }

  otimespan.Set( lday , lsecond ) ;

  return otimespan ;
}
*/
/********************************************************************
  Return Value:otimespan instance
  Parameters: OTime instance to be added
********************************************************************/
OTime& OTime::operator +=( OTimeSpan otimespan)
{
  long total_day,total_second;

  total_day    = AbsDay( )   + otimespan.GetDay( );
  total_second = AbsSecond() + otimespan.GetSecondinDay( );

  total_day    += total_second / SECOND_OF_DAY;
  total_second  = total_second % SECOND_OF_DAY;

  AbsToDate( total_day );
  AbsToTime( total_second );

  return *this;
}
/********************************************************************
  Return Value:otimespan instance
  Parameters: OTime instance to be minus
********************************************************************/
OTime& OTime::operator -=(  OTimeSpan otimespan)
{
  long total_day,total_second;

  total_day    = AbsDay( )   - otimespan.GetDay( );
  total_second = AbsSecond() - otimespan.GetSecondinDay( );

  while( total_second < 0 )
  {
    total_day -- ;
    total_second += SECOND_OF_DAY ;
  }

  AbsToDate( total_day );
  AbsToTime( total_second );

  return *this;
}
/********************************************************************
  Return Value:compare result
  Parameters: OTime instance
********************************************************************/
short OTime::operator ==(  OTime otime )
{
  short i;
  if (  strcmp( date, otime.GetDate() ) == 0 &&
        strcmp( time, otime.GetTime() ) == 0 )
  {
    i = 1;
  }
  else
  {
    i = 0;
  }
  return i;
}
/********************************************************************
  Return Value:compare result
  Parameters: OTime instance
********************************************************************/
short OTime::operator !=(  OTime otime )
{
  short i;
  if (  strcmp( date, otime.GetDate() ) != 0  ||
        strcmp( time, otime.GetTime() ) != 0  )
  {
    i = 1;
  }
  else
  {
    i = 0;
  }
  return i;
}
/********************************************************************
  Return Value:compare result
  Parameters: OTime instance
********************************************************************/
short OTime::operator <(  OTime otime )
{
  short j = strcmp( date, otime.GetDate() ) ;
  if( j < 0 )
    return 1 ;
  else if( j == 0 )
  {
    j = strcmp( time, otime.GetTime() );
    if( j < 0 )
      return 1 ;
  }
  return 0 ;
}
/********************************************************************
  Return Value:compare result
  Parameters: OTime instance
********************************************************************/
short OTime::operator >(  OTime otime )
{
  short j = strcmp( date, otime.GetDate() ) ;
  if( j > 0 )
    return 1 ;
  else if( j == 0 )
  {
    j = strcmp( time, otime.GetTime() );
    if( j > 0 )
      return 1 ;
  }
  return 0 ;
}
/********************************************************************
  Return Value:compare result
  Parameters: OTime instance
********************************************************************/
short OTime::operator <=(  OTime otime )
{
  short j = strcmp( date, otime.GetDate() ) ;
  if( j <= 0 )
    return 1 ;
  else if( j == 0 )
  {
    j = strcmp( time, otime.GetTime() );
    if( j <= 0 )
      return 1 ;
  }
  return 0 ;
}
/********************************************************************
  Return Value:compare result
  Parameters: OTime instance
********************************************************************/
short OTime::operator >=(  OTime otime )
{
  short j = strcmp( date, otime.GetDate() ) ;
  if( j >= 0 )
    return 1 ;
  else if( j == 0 )
  {
    j = strcmp( time, otime.GetTime() );
    if( j >= 0 )
      return 1 ;
  }
  return 0 ;
}
/********************************************************************
  Return Value: year of this instance
  Parameters: no
********************************************************************/
short OTime::GetYear( )
{
  short yy;
  sscanf( date, "%04hd", &yy );
  return yy;
}
/********************************************************************
  Return Value: month of this instance
  Parameters: no
********************************************************************/
short OTime::GetMonth( )
{
  short mm;
  sscanf( date + 4, "%02hd", &mm );
  return mm;
}
/********************************************************************
  Return Value: date of this instance
  Parameters: no
********************************************************************/
short OTime::GetDay( )
{
  short dd;
  sscanf( date + 6, "%02hd", &dd );
  return dd;
}
/********************************************************************
  Return Value: 0 is Sun,1 is Mon,...,6 is Sat.
  Parameters: no
********************************************************************/
short OTime::GetDayofWeek( )
{
  long total_day;
  total_day = AbsDay( ) + 4;
  short i = total_day % 7;
  return i;
}
/********************************************************************
  Return Value: hour of this instance
  Parameters: no
********************************************************************/
short OTime::GetHour( )
{
  short nh;
  sscanf( time, "%02hd", &nh );
  return nh;
}
/********************************************************************
  Return Value: minute of this instance
  Parameters: no
********************************************************************/
short OTime::GetMinute( )
{
  short nf;
  sscanf( time + 2, "%02hd", &nf );
  return nf;
}
/********************************************************************
  Return Value: second of this instance
  Parameters: no
********************************************************************/
short OTime::GetSecond( )
{
  short ns;
  sscanf( time, "%02hd", &ns );
  return ns;
}
/********************************************************************
  Return Value: pointer of date
  Parameters: no
********************************************************************/
char* OTime::GetDate()
{
  return date;
}
/********************************************************************
  Return Value: pointer of time
  Parameters: no
********************************************************************/
char* OTime::GetTime()
{
  return time;
}



short OTime::AddMonth( short months )   //加上多少月,成功返回1，否则返回0
{
  short year  = GetYear() + months/12 ;
  months = months % 12 ;

  short month = GetMonth();
  if( month + months > 12 )
  {
    year ++ ;
    month = month + months -12 ;
  }
  else
  {
    month += months ;
  }
  sprintf( date,"%04hd%02hd%02hd",year,month,GetDay() ) ;
  return 1 ;
}
short OTime::MinusMonth( short months ) //减去多少月,成功返回1，否则返回0
{
  short year  = GetYear() - months / 12 ;
  months = months % 12 ;

  short month = GetMonth();

  if( month - months > 0 )
  {
    month -= months ;
  }
  else
  {
    year --;
    month = month + 12 - months ;
  }


  sprintf( date,"%04hd%02hd%02hd",year,month,GetDay() ) ;
  return 1 ;
}
short OTime::AddYear( short year )    //加上多少月,成功返回1，否则返回0
{
  sprintf( date,"%04hd%02hd%02hd",GetYear()+ year,GetMonth(),GetDay() ) ;
  return 1 ;
}
short OTime::MinusYear( short year )  //减去多少月,成功返回1，否则返回0
{
  sprintf( date,"%04hd%02hd%02hd",GetYear()- year,GetMonth(),GetDay() ) ;
  return 1 ;
}

short OTime::AddDay( short day )    //加上多少天,成功返回1，否则返回0
{
  OTimeSpan cltime_span( 1, 0 );
  long total_day;

  total_day = AbsDay( ) + cltime_span.GetDay( );
  AbsToDate( total_day );

  return 1 ;
}

short OTime::MinusDay( short day )  //减去多少天,成功返回1，否则返回0
{
  OTimeSpan cltime_span( 1, 0 );
  long total_day;

  total_day = AbsDay( ) - cltime_span.GetDay( );
  AbsToDate( total_day );

  return 1 ;
}

/********************************************************************
  Return Value: pointer of date
  Parameters: no
********************************************************************/
char* OTime::GetFormatedDate()
{
  memcpy( fmtdate,date, 4 ) ;
  fmtdate[ 4 ] = '-' ;
  memcpy( fmtdate + 5, date + 4, 2 ) ;
  fmtdate[ 7 ] = '-' ;
  memcpy( fmtdate + 8, date + 6, 2 ) ;
  fmtdate[ 10 ] = NULL ;
  return fmtdate;
}
/********************************************************************
  Return Value: pointer of time
  Parameters: no
********************************************************************/

char* OTime::GetFormatedTime()
{
  memcpy( fmttime, time, 2 ) ;
  fmttime[ 2 ] = ':' ;
  memcpy( fmttime + 3, time + 2, 2 ) ;
  fmttime[ 5 ] = ':' ;
  memcpy( fmttime + 6, time + 4, 2 ) ;
  fmttime[ 8 ] = NULL ;
  return fmttime;
}
/********************************************************************
  Return Value: 1
  Parameters: pointer of date and time
********************************************************************/
void OTime::GetLocalTime ( )
{
  GetLocalTime_CXX( GetDate(), GetTime() ) ;
}
/********************************************************************
  Return Value: no
  Parameters: no
********************************************************************/
void OTime::GetSystemTime()
{
  ReadTime( GetDate(), GetTime() ) ;
}