Bug #1646: BigDecimal
e$B$GIbF0>.?tE@?t$X$NJQ49$,@5$7$/9T$J$o$l$J$$$3$H$,$"$ke(B
http://redmine.ruby-lang.org/issues/show/1646
e$B5/I<<Te(B: tadayoshi funaba
e$B%9%F!<%?%9e(B: Open, e$BM%@hEYe(B: Normal
ruby -v: ruby 1.9.2dev (2009-06-17 trunk 23726) [i686-linux]
BigDecimal e$B$GIbF0>.?tE@?t$X$NJQ49$,@5$7$/9T$J$o$l$J$$$3$H$,$"$ke(B
irb -r bigdecimal -r bigdecimal/util
main@192-20090617> Float::MAX
#=> 1.7976931348623157e+308
main@192-20090617> Float::MAX.to_d
#=> #<BigDecimal:83e4aa0,‘0.1797693134 8623157E309’,20(24)>
main@192-20090617> Float::MAX.to_d.to_f
#=> Infinity