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Uses for Infinity in Ruby

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  1. Infinity = 1.0/0
  2.  
  3. # a rather useless range
  4. everything = -Infinity..Infinity
  5. puts everything.includes?(5) #-> true
  6.  
  7. # use it for representing an unbounded value
  8. storage_limits => { :demo => 0,
  9.   :standard => 250.megabytes,
  10.   :expert => 1.gigabyte,
  11.   :unlimited => Infinity }
  12.  
  13. if bytes_used < storage_limits[account_level]
  14.   # add another file or something
  15. else
  16.   # display "out of space" message
  17. end

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