Current File : //opt/alt/ruby32/share/ruby/date.rb
# frozen_string_literal: true
# date.rb: Written by Tadayoshi Funaba 1998-2011
require 'date_core'
class Date
VERSION = "3.3.3" # :nodoc:
# call-seq:
# infinite? -> false
#
# Returns +false+
def infinite?
false
end
class Infinity < Numeric # :nodoc:
def initialize(d=1) @d = d <=> 0 end
def d() @d end
protected :d
def zero?() false end
def finite?() false end
def infinite?() d.nonzero? end
def nan?() d.zero? end
def abs() self.class.new end
def -@() self.class.new(-d) end
def +@() self.class.new(+d) end
def <=>(other)
case other
when Infinity; return d <=> other.d
when Float::INFINITY; return d <=> 1
when -Float::INFINITY; return d <=> -1
when Numeric; return d
else
begin
l, r = other.coerce(self)
return l <=> r
rescue NoMethodError
end
end
nil
end
def coerce(other)
case other
when Numeric; return -d, d
else
super
end
end
def to_f
return 0 if @d == 0
if @d > 0
Float::INFINITY
else
-Float::INFINITY
end
end
end
end
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