HijriCalendar::IsLeapDay Method (Int32, Int32, Int32, Int32)
Determines whether the specified date is a leap day.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- year
- Type: System::Int32
An integer that represents the year.
- month
- Type: System::Int32
An integer from 1 to 12 that represents the month.
- day
- Type: System::Int32
An integer from 1 to 30 that represents the day.
- era
- Type: System::Int32
An integer that represents the era.
| Exception | Condition |
|---|---|
| ArgumentOutOfRangeException | era is outside the range supported by this calendar. -or- year is outside the range supported by this calendar. -or- month is outside the range supported by this calendar. -or- day is outside the range supported by this calendar. |
In every 30-year cycle that ends with a year that is evenly divisible by 30, the 2nd, 5th, 7th, 10th, 13th, 16th, 18th, 21st, 24th, 26th, and 29th years are leap years. A common year has 354 days and a leap year has 355 days.
A leap day is a day that occurs only in a leap year. In the Hijri calendar, the 30th day of Zulhijjah is the only leap day.
The following code example calls the IsLeapDay method for the last day of the second month (February) for five years in each of the eras.
using namespace System; using namespace System::Globalization; int main() { // Creates and initializes a HijriCalendar. HijriCalendar^ myCal = gcnew HijriCalendar; // Creates a holder for the last day of the second month (February). int iLastDay; // Displays the header. Console::Write( "YEAR\t" ); for ( int y = 1421; y <= 1425; y++ ) Console::Write( "\t {0}", y ); Console::WriteLine(); // Checks five years in the current era. Console::Write( "CurrentEra:" ); for ( int y = 1421; y <= 1425; y++ ) { iLastDay = myCal->GetDaysInMonth( y, 2, HijriCalendar::CurrentEra ); Console::Write( "\t {0}", myCal->IsLeapDay( y, 2, iLastDay, HijriCalendar::CurrentEra ) ); } Console::WriteLine(); // Checks five years in each of the eras. for ( int i = 0; i < myCal->Eras->Length; i++ ) { Console::Write( "Era {0}:\t", myCal->Eras[ i ] ); for ( int y = 1421; y <= 1425; y++ ) { iLastDay = myCal->GetDaysInMonth( y, 2, myCal->Eras[ i ] ); Console::Write( "\t {0}", myCal->IsLeapDay( y, 2, iLastDay, myCal->Eras[ i ] ) ); } Console::WriteLine(); } } /* This code produces the following output. YEAR 1421 1422 1423 1424 1425 CurrentEra: False False False False False Era 1: False False False False False */
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.