From: Tanaka Akira <akr@...17n.org>
Date: 2002-11-11T17:58:22+09:00
Subject: [ruby-list:36441] Re: ar=[];ar+=2でエラー

In article <1036962504.889517.29322.nullmailer@picachu.netlab.jp>,
  matz@ruby-lang.org (Yukihiro Matsumoto) writes:

>   * $B$G$b!"$J$<$+(Belse$B$KDq93$,$J$$(B
> 
>     $B$?$V$s!";d$NF,$NCf$G$O(Bif then else $B$N$3$H$r(B
> 
>       if (cond)
>         ...
>       end
>       if (!cond)
>         ...
>       end
> 
>     $B$HGD0.$7$F$$$k$N$G$O$J$$$+$H?dB,$7$^$9!#$@$+$i!"(Bthen$B@a$,(B
>     else$B@a$K1F6A$rM?$($k$,(Belse$B@a$,(Bthen$B@a$K1F6A$r<u$1$J$$HsBP(B
>     $B>N@-$,5$$K$J$i$J$$$H!#(B

$B$D$^$j%a%s%?%k%b%G%k$N0c$$$K$h$k$o$1$G$9$M!#(BRuby $B$,:n<T$N%a%s%?%k%b%G(B
$B%k$rH?1G$9$k$N$O<+A3$JOC$J$N$G!"$=$l$O$=$l$GG<F@$G$-$^$9!#(B

> $B$H$$$&$3$H$G!"$I$&$b(BRite$B$N5sF0$O(B
> 
>   * ($BDL>o$N(B)$B%m!<%+%kJQ?t$K$D$$$F$O8=>u0];}(B
> 
>   * $B$?$@$7!"%m!<%+%kJQ?t$X$NBeF~$,EP>l$9$kA0$KF1L>$NL50z?t$G(B
>     $B$+$C$3$,>JN,$5$l$?%a%=%C%I8F$S=P$7$,$"$l$P!"7Y9p$9$k(B($B$J(B
>     $B$+$@%Q%C%A$H$[$\F1MM$N5sF0(B)
> 
> $B$H$7$h$&$+$J$H;W$C$F$$$^$9!":#F|$N;~E@$G$O!#(B

$B$^!"=hM}7O$rL[$i$;$k$?$a$K%W%m%0%i%`$rJQ$($J$-$c$$$1$J$$$3$H$O$$$D$b$N(B
$B$3$H$J$N$G!"7Y9p$,A}$($k$N$O$Y$D$KLdBj$J$$$s$8$c$J$$$G$9$+$M!#(B

>   * $B%V%m%C%/%m!<%+%k$K$7$?$$>l9g$K$OFCJL$N$@0\F~$r9T$&!#8=;~(B
>     $BE@$G$N0F$O(B
> 
>       let a = value
> 
>     $B0JA0$N(B := $B$r;H$C$?$b$N$h$j$O%^%7$J5$$,!#$"$H!"%V%m%C%/Fb(B
>     $B%m!<%+%kJQ?t$NL>>N$,30B&$N%m!<%+%kJQ?t$H=EJ#$7$?>l9g$K$O(B
>     $B7Y9p$K$J$k!#(B

$B:#$^$G$NOC$H$O(B semantics $B$OJQ$o$C$F$$$J$$!"$+$J(B?

$B$U$`!#(Blet a = b = value $B$G!"(Bb $B$N07$$$O(B?

> $B$H$$$&Iw$K$7$h$&$+$J$H;W$C$F$$$^$9!#Hs8_49$G$9$,!"IaDL$N;H$$(B
> $BJ}$r$7$F$k>l9g$K$O$"$^$jLdBj$K$J$i$J$$Hs8_49@-$@$H;W$$$^$9!#(B
> $B$_$J$5$s!":#8e$r9M$($F$A$g$C$H$@$1Cm0U$7$F%V%m%C%/Fb%m!<%+%k(B
> $BJQ?t$r;H$$$^$7$g$&!#(B

$B8=:_$H(B Rite $B$NN>J}$G%V%m%C%/%m!<%+%k$JJQ?t$O%V%m%C%/%Q%i%a!<%?$@$1$J5$(B
$B$,$9$k$N$G!"$$$^$N$H$3$mCm0U$9$k$N$O:$Fq$J5$$,$7$^$9!#(B

$B%V%m%C%/%m!<%+%kJQ?t$r;H$$$?$$;~$K$O!"(Blambda {|a| a = value ...}.call $B$H(B
$B$9$k!"$H$$$&$N$O$A$g$C$H$"$^$j$K$"$s$^$j$+$J$!!#(B
-- 
[$BEDCf(B $BE/(B][$B$?$J$+(B $B$"$-$i(B][Tanaka Akira]
$B!V$U$($m(B! $B$o$+$a$A$c$s:n@o$G$9$(C"=$B!W(B(Little Worker, $B7KM7@84](B)