method

ordinal

v1_8_6_287 - Show latest stable - Class: Date

ordinal(y=-4712, d=1, sg=ITALY)

public

Create a new Date object from an Ordinal <a href="/ruby/Date">Date,</a> specified by year y and day-of-year d. d can be negative, in which it counts backwards from the end of the year. No year wraparound is performed, however. An invalid value for d results in an ArgumentError being raised.

y defaults to -4712, and d to 1; this is Julian Day Number day 0.

sg specifies the Day of Calendar Reform.

# File lib/date.rb, line 705
  def self.ordinal(y=-4712, d=1, sg=ITALY)
    unless jd = valid_ordinal?(y, d, sg)
      raise ArgumentError, 'invalid date'
    end
    new!(jd_to_ajd(jd, 0, 0), 0, sg)
  end

ordinal

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