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DOY()

Syntax:     DOY([<expD>])

Arguments:  <expD> denotes the date for which to calculate the day of
            the year.

Returns:    A date value.
            The number of days to this date.  January 1 is number 1.

Usage:      This function is useful if automatic numbers are calculated,
            based on the day of the year, as in the case of some return
            authorization numbers.

Notes:      DOY() will automatically use the system date if no date
            argument is passed.  January 1 will return the number 1.  In
            leap years December 31 will be 366.  Otherwise it will be
            365.  An null date will result in 0.

Library:    CT1.LIB


--------------------------------- Example ------------------------------

Examples:   * Calculate the period between January 1 of
            * this year and the present day.
            * Warning!  Only operate within one year.

            ? DOY() - DOY(BOY())                && BOY() supplies
                                                && January 1