nextWeekDay

To compute the Christmas and New Year holidays:

#include <stdio.h>
#include <codecogs/units/date/nextweekday.h>
#include <codecogs/units/date/date.h>

using namespace Units::Date;

int main()
{
  int holidays[4];
  holidays[0] = date("24 dec 2005");                             // If your lucky!
  holidays[1] = nextWeekDay(date("25 dec 2005")-1);  // Christmas or if a weekend the next Monday.
  holidays[2] = nextWeekDay(holidays[1]);                   // next weekday after Christmas (Boxing day).
  holidays[3] = nextWeekDay(date("1 jan 2006")-1);     // New year.
  return 0;
}

Remember that nextWeekDay automatically increments the date, so even if the give date is already a weekday it still advances - we therefore fool nextWeekDay by putting -1 after date , so it gives us the specified date or if a weekend the next weekday.