/// <summary>
/// 判定给定的年月日是否是一个有效的日期
/// </summary>
/// <param name="year">给定的年份</param>
/// <param name="month">给定的月份</param>
/// <param name="day">给定的日子</param>
/// <returns>true:给定的年月日是一个有效的日期。false:不是一个有效的日期。</returns>
bool CDateTime::ValidateDate(int year, int month, int day)
{
if (!ValidateDate(year, month))
return false;
if ((day < 1) || (day > GetDaysOfMonth(year, month)))
return false;
return true;
}
int BTS_Time(int year,int month,int day)
{
//days records the days between two dates
int days=0,j;
int std_year=BEIDOU_YEAR;
int std_month=BEIDOU_MONTH;
int std_day=BEIDOU_DAY;
for(j=std_year;j<year;j++)
days+=(IsLeapYear(j)?366:365);
days+=GetDaysOfMonth(year,month,day);
//divide 7 to count the weeks
return (days/7+1);
}
Date LastDayOfMonth(Date d) {
d.day = GetDaysOfMonth(d.month, d.year);
return d;
}
CString *CTimer::GetTimeString (void)
{
m_TimeSpinLock.Acquire ();
unsigned nTime = m_nTime;
unsigned nTicks = m_nTicks;
m_TimeSpinLock.Release ();
if ( nTime == 0
&& nTicks == 0)
{
return 0;
}
unsigned nSecond = nTime % 60;
nTime /= 60;
unsigned nMinute = nTime % 60;
nTime /= 60;
unsigned nHours = nTime;
unsigned nHour = nTime % 24;
nTime /= 24;
unsigned nYear = 1970;
while (1)
{
unsigned nDaysOfYear = IsLeapYear (nYear) ? 366 : 365;
if (nTime < nDaysOfYear)
{
break;
}
nTime -= nDaysOfYear;
nYear++;
}
unsigned nMonth = 0;
while (1)
{
unsigned nDaysOfMonth = GetDaysOfMonth (nMonth, nYear);
if (nTime < nDaysOfMonth)
{
break;
}
nTime -= nDaysOfMonth;
nMonth++;
}
unsigned nMonthDay = nTime + 1;
nTicks %= HZ;
#if (HZ != 100)
nTicks = nTicks * 100 / HZ;
#endif
CString *pString = new CString;
assert (pString != 0);
if (nYear > 1975)
{
pString->Format ("%s %2u %02u:%02u:%02u.%02u", s_pMonthName[nMonth], nMonthDay, nHour, nMinute, nSecond, nTicks);
}
else
{
pString->Format ("%02u:%02u:%02u.%02u", nHours, nMinute, nSecond, nTicks);
}
return pString;
}
bool Date::IsValid() const {
return year == -32768 || month >= 1 && month <= 12 && day >= 1 && day <= GetDaysOfMonth(month, year);
}
