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Hello,

I just got the CVS version of Ruby installed and was pleasantly surprised to 
see a BigDecimal class. I started playing with it in irb and came up against 
some confusion.

1. The comment at the top of RUBY_HOME/bigdecimal/util.rb says the following:
#   Float#
#     to_d      ... to BigDecimal
Yet the code says it returns a BigFloat
class Float < Numeric
  def to_d
    BigFloat::new(selt.to_s)
  end
end

2. Also, is this a typo?
class Float < Numeric
  def to_d
    BigFloat::new(selt.to_s)    <--- should be self?
  end
end

3. I thought I could use String#to_d as the file comment suggests:
#   String#
#     to_d      ... to BigDecimal
Yet when I do this in irb it gives me an error:
irb(main):002:0> require 'bigdecimal/util'
=> true
irb(main):003:0> '111.333333'.to_d
ArgumentError: wrong number of arguments(1 for 0)
        from /usr/lib/ruby/1.8/bigdecimal/util.rb:29:in `initialize'
        from /usr/lib/ruby/1.8/bigdecimal/util.rb:29:in `new'
        from /usr/lib/ruby/1.8/bigdecimal/util.rb:29:in `to_d'
        from (irb):3
User error here on my part?

Thanks in advance for any responses.

- -- 
Signed,
Holden Glova
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