[Feature #2969] String#to_f $B$,(B -h.hhh$B!^(Bpd $B$r2r<a$G$-$k$h$&$K(B

e$B%A%1%C%He(B #2969 e$B$,99?7$5$l$^$7$?!#e(B (by Yuki S.)

String#to_fe$B$d%j%F%i%k$K$O$A$g$C$Hm4m0$7$^$9$,!":#2s$O$=$l$OF~$i$J$$$H8@$&$3$H$G$9$N$G$$$`$M:9$7;Y$($J$$$H;W$$$^$9!#e(B

e$B1F6AHO0O$rFI$@Z$l$J$$ItJ,$,$“$k$N$G$9$,!”%j%j!<%9$^$G$K4s$;$i$l$?6l>p<!Bh$G$Oe(Breverte$B$b$"$jF@$k$H$$$&>r7oIU$-$Ge(B1.9.2e$B$X<h$j9~$$?$$$H;W$$$^$9!#e(B

http://redmine.ruby-lang.org/issues/show/2969