ruby-list

中川です。たびたび恐縮です。

From: matz@netlab.co.jp (Yukihiro Matsumoto)
Subject: [ruby-list:8703] Re: can't build 1.1b9_28 on digital-unix
Date: Mon, 13 Jul 1998 15:29:59 +0900

> まつもと ゆきひろです
> 
>   * sizeof(short)の値は？ 2?
>   * sizeof(VALUE)の値は？ 8?

sizeof(short) は 2、sizeof(VALUE) は 8 です。

>   * 添付のパッチを当てた結果はいかがでしょう？

% ruby -e 'p 1<<1014'
175555970201398037864189960037990696642380564349834626243584063630598316216309534309285622385163609395625111210811907575838661883607828732903171318983861449587663958422720200465138886329341888788528401320395513446131006525725061407689368272012526598792334483090416306874948482361796597953940777665648656384

% ruby -e 'p (-1<<1014)'
-175555970201398037864189960037990696642380564349834626243584063630598316216309534309285622385163609395625111210811907575838661883607828732903171318983861449587663958422720200465138886329341888788528401320395513446131006525725061407689368272012526598792334483090416306874948482361796597953940777665648656384

% ruby -e 'p 2**1014'
175555970201398037864189960037990696642380564349834626243584063630598316216309534309285622385163609395625111210811907575838661883607828732903171318983861449587663958422720200465138886329341888788528401320395513446131006525725061407689368272012526598792334483090416306874948482361796597953940777665648656384

ここまではいいのですが、

% make test
not ok marshal 1 -- /usr/users/nakagawa/ruby-1.1b9_30-alpha/sample/test.rb:925
test failed

--------------------------ここから
def fact(n)
  return 1 if n == 0
  f = 1
  while n>0
    f *= n
    n -= 1
  end
  return f
end

for i in 0..30
  p fact(i)
end
--------------------------ここまで

上記の結果はパッチをあてた場合は
1
1
2
6
24
120
720
5040
40320
362880
3628800
39916800
479001600
6227020800
87178291200
1307674368000
20922789888000
355687428096000
6402373705728000
121645100408832000
2432902008176640000
20279721984
497693491200
5262197391360
126292737392640
15511210043330985984000000
144432588600115200
10888869450418352160768000000
304888344611713860501504000000
2820914309738004480000
3699376128000

パッチを当てない場合は
1
1
2
6
24
120
720
5040
40320
362880
3628800
39916800
479001600
6227020800
87178291200
1307674368000
20922789888000
355687428096000
6402373705728000
121645100408832000
2432902008176640000
51090942171709440000
1124000727777607680000
25852016738884976640000
620448401733239439360000
15511210043330985984000000
403291461126605635584000000
10888869450418352160768000000
304888344611713860501504000000
8841761993739701954543616000000
265252859812191058636308480000000

です。
--
中川 剛 / nakagawa@shizuokanet.ne.jp

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[ruby-list:8706] Re: can't build 1.1b9_28 on digital-unix

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[#8633] subscribe ruby ML — 吉田　寛人 <tascal@...2.zzz.or.jp>

[#8656] Re: period.rb — 助田　雅紀 <masaki.suketa@...>

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