# frozen_string_literal: true

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# date.rb: Written by Tadayoshi Funaba 1998-2011

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require 'date_core'

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class Date

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class Infinity < Numeric # :nodoc:

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include Comparable

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def initialize(d=1) @d = d <=> 0 end

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def d() @d end

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protected :d

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def zero?() false end

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def finite?() false end

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def infinite?() d.nonzero? end

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def nan?() d.zero? end

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def abs() self.class.new end

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def -@() self.class.new(-d) end

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def +@() self.class.new(+d) end

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def <=>(other)

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case other

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when Infinity; return d <=> other.d

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when Numeric; return d

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else

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begin

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l, r = other.coerce(self)

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return l <=> r

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rescue NoMethodError

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end

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end

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nil

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end

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def coerce(other)

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case other

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when Numeric; return -d, d

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else

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super

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end

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end

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def to_f

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return 0 if @d == 0

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if @d > 0

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Float::INFINITY

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else

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-Float::INFINITY

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end

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end

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end

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end

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