0**-1 e$B$,e(B 0 e$B$K$J$k$3$H$K5$$,$D$-$^$7$?!#e(B
% ./ruby -ve ‘p 0**-1’
ruby 1.9.0 (2007-10-16 patchlevel 0) [i686-linux]
0
e$B0JA0$Oe(B Infinity e$B$G$7$?!#e(B
% ruby-1.8.6 -ve ‘p 0**-1’
ruby 1.8.6 (2007-03-13 patchlevel 0) [i686-linux]
Infinity
[ruby-dev:31040] e$B$,$-$C$+$1$N$h$&$G$9$,!"e(B[ruby-dev:20800] e$B$re(B
e$B;W$$=P$9$He(B 0**-1 e$B$N7k2L$rJQ$($k$N$O$b$H$b$H$N0U?^$KH?$7$F$$e(B
e$B$k$h$&$K;W$$$^$9!#e(B