Bug #974: Range#max e$B$G=*N;$7$J$$$3$H$,$"$ke(B
http://redmine.ruby-lang.org/issues/show/974
e$B5/I<<Te(B: tadayoshi funaba
e$B%9%F!<%?%9e(B: Open, e$BM%@hEYe(B: Normal
e$B0J2<$N$h$&$K$9$k$H=*N;$7$J$$$h$&$G$9!#e(B
$ ./ruby -e ‘inf=1.0/0; (0…inf).max’
e$B$^$D$b$He(B e$B$f$-$R$m$G$9e(B
In message “Re: [ruby-dev:37688] [Bug #974] Range#max
e$B$G=*N;$7$J$$$3$H$,$”$ke(B"
on Sun, 4 Jan 2009 02:05:40 +0900, tadayoshi funaba
[email protected] writes:
|e$B0J2<$N$h$&$K$9$k$H=*N;$7$J$$$h$&$G$9!#e(B
|
|$ ./ruby -e ‘inf=1.0/0; (0…inf).max’
e$B<BAu$H$7$F$Oe(B
(b…e)e$B$H$7$?>l9g!"e(Bee$B$,@0?t$G$J$1$l$P!"e(Bbe$B$+$ie(Bee$B$^$G7+$jJV$7$F!"e(B
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e$B$H$$$&F0:n$r$7$F$$$^$9!#!Ve(B…e$B!W$N>l9g!“:GBgCM$Oe(Bee$B$=$N$b$N$G$Oe(B
e$B$J$/!“e(BRangee$B$r7+$jJV$7$?7k2Le(Bee$B$r1[$($J$$:GBgCM$J$N$G!“3N<B$K$oe(B
e$B$+$k<jCJ$O<B:]$K7+$jJV$9$3$H$@$+$i$G$9$,!”$=$N7k2L!“e(Bee$B$KL58BBge(B
e$B$r;XDj$9$k$H=*N;$7$J$$$o$1e(B(e$B$$$d!”$$$D$+$O=*N;$9$k$N$+$Je(B)e$B$G$9!#e(B
e$B$3$l$O$”$k0UL#!”=*N;$7$J$$$N$,;XDj$7$?DL$j$NF0:n$G$“$k$H8@$(e(B
e$B$J$$$3$H$b$”$j$^$;$s!#e(B
e$B=*N;$9$k$Y$-$G$J$$$H$9$k$H!“$=$l$K9g$o$;$F?7$?$J!V;EMM!W$rDje(B
e$B5A$9$kI,MW$,$”$j$^$9$,!"$I$N$h$&$J;EMM$,E,@Z$+@5D>$h$/$o$+$je(B
e$B$^$;$s$M!#e(B
ee$B$,e(BFloate$B$+$DL58B$G$"$l$P$=$l$rJV$9e(B(…e$B$NDj5A$KH?$9$k$h$&$Je(B)
e$B$&!<$`!#?t$K4X$9$kCN<1$rMxMQ$7$F!“$h$j8-$$F0:n$r$5$;$F$”$2$?e(B
e$B$$$b$N$G$9$,!#e(B
e$B=*N;$9$k$Y$-$G$J$$$H$9$k$H!"$=$l$K9g$o$;$F?7$?$J!V;EMM!W$rDje(B
e$B5A$9$kI,MW$,$"$j$^$9$,!"$I$N$h$&$J;EMM$,E,@Z$+@5D>$h$/$o$+$je(B
e$B$^$;$s$M!#e(B
- ee$B$,e(BFloate$B$+$DL58B$G$"$l$P$=$l$rJV$9e(B(…e$B$NDj5A$KH?$9$k$h$&$Je(B)
- ee$B$,e(BFloate$B$+$DL58B$G$"$l$P%(%i!<e(B
- e$B$=$NB>e(B
e$B%(%i!<$K$7$F$b$$$$$h$&$J5$$,$7$F$$$^$9!#5v$7$F$b1d!9$H;q8;$r>CHq$9$k$@e(B
e$B$1$8$c$J$$$G$9$+!#e(B
(0…1).step(0){}
e$B$N$h$&$J$b$N$O8=>u$G$O%(%i!<$K$J$k$1$I!"$3$l$O5v$7$F$be(B
e$B$`$7$mMxMQ<T$,M}2r$G$-$k$b$N$K$J$k$H;W$$$^$9!#e(B
e$B$H$3$m$Ge(B
(0…3).last #=> 3
e$B$3$N>l9g$Ne(B last e$B$H$$$&$N$bJQ$J46$8$,$7$^$9$M!#e(B
e$B$^$D$b$He(B e$B$f$-$R$m$G$9e(B
In message “Re: [ruby-dev:37690] Re: [Bug #974] Range#max
e$B$G=*N;$7$J$$$3$H$,$”$ke(B"
on Sun, 4 Jan 2009 07:00:25 +0900, Tadayoshi F. [email protected]
writes:
|> * ee$B$,e(BFloate$B$+$DL58B$G$“$l$P$=$l$rJV$9e(B(…e$B$NDj5A$KH?$9$k$h$&$Je(B)
|> * ee$B$,e(BFloate$B$+$DL58B$G$”$l$P%(%i!<e(B
|> * e$B$=$NB>e(B
|
|e$B%(%i!<$K$7$F$b$$$$$h$&$J5$$,$7$F$$$^$9!#5v$7$F$b1d!9$H;q8;$r>CHq$9$k$@e(B
|e$B$1$8$c$J$$$G$9$+!#e(B
ee$B$,e(BNumerice$B$Ge(BIntegere$B$G$J$$;~!"e(B…e$B$Ne(Bmaxe$B$O%(%i!<$K$9$k$3$H$K$7e(B
e$B$^$7$?!#KvHx$r4^$^$J$$:GBgCM$,Dj5A$G$-$J$$$N$G!#e(B
|e$B$H$3$m$Ge(B
|
|(0…3).last #=> 3
|
|e$B$3$N>l9g$Ne(B last e$B$H$$$&$N$bJQ$J46$8$,$7$^$9$M!#e(B
e$B$=$&$G$9$M!#e(Blaste$B$re(BRangee$B$,!V@8@.$9$kNs$N:G8e$NCM!W$G$O$J$/!"6he(B
e$B4V;XDj$N:G8ee(B(e$B8e$m$NJ}e(B)e$B$@$H$`$j$d$j2r<a$7$F$/$@$5$$!#e(B
Yuguie$B$G$9!#e(B
On 1/5/09 6:38 AM, Yukihiro M. wrote:
ee$B$,e(BNumerice$B$Ge(BIntegere$B$G$J$$;~!"e(B…e$B$Ne(Bmaxe$B$O%(%i!<$K$9$k$3$H$K$7e(B
e$B$^$7$?!#KvHx$r4^$^$J$$:GBgCM$,Dj5A$G$-$J$$$N$G!#e(B
e$BEvLL$3$l$r%(%i!<$K$9$k$3$H$K$O;?@.$G$9$,!"M}M3$,0c$&$H;W$$$^$9!#e(B
e$B@hF,e(Bse$B$HKvHxe(Bee$B$GDj5A$5$l$k$H$3$m$Ne(B{n <- N | s <= n < e}
e$B$J$k=89g$K:GBgCM$,e(B
e$BB8:_$9$k$3$H$O$^$C$?$/LdBj$J$$$o$1$G$9!#e(B
e$BLdBj$O!">e$K3+$$$?6h4V$N:GBgCM$rDj5A$9$k$?$a$KE,@Z$J5wN%4X?t$rM?$($M$P$Je(B
e$B$i$J$$$H$3$m!“N>C<$,@0?t$G$”$l$Pe(Bsucce$B$Ne(B"e$B0\F05wN%e(B"e$B$GDj$^$kN%;6E*$J5wN%$rM?e(B
e$B$($F$d$k$N$,E,@Z$G$"$k$H?dB,$5$l$k$N$KBP$7$F!"@0?t$HHs@0?t$NAH$_9g$o$;$Ge(B
e$B$O$=$l$,[#Kf$@$H8@$&$3$H$G$9!#e(B
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e$B$k$3$H$OEvLLE,@Z$@$H;W$$$^$9!#$7$+$7$J$,$i!”>-MhE*$Ke(Bsucce$B$K;w$?%a%=%C%I$re(B
e$B%7%s%%k$G;XDj$7$F$d$k7A<0$O8!F$$NM>CO$,$"$k$+$H;W$$$^$7$?!#e(B
Class Float
def step_0_5
self + 0.5
end
end
(1.0…3.0).max(:step_0_5) #=> 2.5
e$B$3$N8!F$$N@'Hs$O$H$b$+$/!"$3$NJQ99$NM}M3$K$D$$$F$OL@3N$K$7$F$$/I,MW$,$"e(B
e$B$k$H;W$$$^$7$Fe(Bposte$B$7$^$7$?!#e(B
e$B$J$!"%P%0$H$O8@$$$E$i$$$N$G!";~4|E*$JLdBj$+$i$3$NJQ99$Oe(B1.9.1e$B$K$O<h$j9~e(B
e$B$_$^$;$s!#e(B
e$B$^$D$b$He(B e$B$f$-$R$m$G$9e(B
In message “Re: [ruby-dev:37720] Re: [Bug #974] Range#max
e$B$G=*N;$7$J$$$3$H$,$”$ke(B"
on Wed, 7 Jan 2009 19:39:55 +0900, “Yugui (Yuki S.)”
[email protected] writes:
|> ee$B$,e(BNumerice$B$Ge(BIntegere$B$G$J$$;~!“e(B…e$B$Ne(Bmaxe$B$O%(%i!<$K$9$k$3$H$K$7e(B
|> e$B$^$7$?!#KvHx$r4^$^$J$$:GBgCM$,Dj5A$G$-$J$$$N$G!#e(B
|
|e$BEvLL$3$l$r%(%i!<$K$9$k$3$H$K$O;?@.$G$9$,!“M}M3$,0c$&$H;W$$$^$9!#e(B
|
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|e$BB8:_$9$k$3$H$O$^$C$?$/LdBj$J$$$o$1$G$9!#e(B
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e$B$G$"$l$P%V%m%C%/$r;XDj$9$l$P$h$$$h$&$Je(B(e$B8=>u$O%V%m%C%/$r;XDje(B
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e$B$^$D$b$He(B e$B$f$-$R$me(B /:|)
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