Class: Date::Infinity
- Inherits:
-
Numeric
- Object
- Numeric
- Date::Infinity
- Includes:
- Comparable
- Defined in:
- lib/date.rb
Overview
:nodoc:
Instance Method Summary collapse
- #+@ ⇒ Object
- #-@ ⇒ Object
- #<=>(other) ⇒ Object
- #abs ⇒ Object
- #coerce(other) ⇒ Object
- #finite? ⇒ Boolean
- #infinite? ⇒ Boolean
-
#initialize(d = 1) ⇒ Infinity
constructor
A new instance of Infinity.
- #nan? ⇒ Boolean
- #to_f ⇒ Object
- #zero? ⇒ Boolean
Constructor Details
#initialize(d = 1) ⇒ Infinity
Returns a new instance of Infinity.
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# File 'lib/date.rb', line 16 def initialize(d=1) @d = d <=> 0 end |
Instance Method Details
#+@ ⇒ Object
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# File 'lib/date.rb', line 30 def +@() self.class.new(+d) end |
#-@ ⇒ Object
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# File 'lib/date.rb', line 29 def -@() self.class.new(-d) end |
#<=>(other) ⇒ Object
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# File 'lib/date.rb', line 32 def <=>(other) case other when Infinity; return d <=> other.d when Numeric; return d else begin l, r = other.coerce(self) return l <=> r rescue NoMethodError end end nil end |
#abs ⇒ Object
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# File 'lib/date.rb', line 27 def abs() self.class.new end |
#coerce(other) ⇒ Object
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# File 'lib/date.rb', line 46 def coerce(other) case other when Numeric; return -d, d else super end end |
#finite? ⇒ Boolean
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# File 'lib/date.rb', line 23 def finite?() false end |
#infinite? ⇒ Boolean
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# File 'lib/date.rb', line 24 def infinite?() d.nonzero? end |
#nan? ⇒ Boolean
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# File 'lib/date.rb', line 25 def nan?() d.zero? end |
#to_f ⇒ Object
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# File 'lib/date.rb', line 54 def to_f return 0 if @d == 0 if @d > 0 Float::INFINITY else -Float::INFINITY end end |
#zero? ⇒ Boolean
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# File 'lib/date.rb', line 22 def zero?() false end |