gaye

Originally posted by secretfj at 2005-6-19 06:37 PM:8 M( m: j/ u, s8 i" x5 q
有無人知點解?' c) G. O4 L2 b, Z3 j
Server 的Backup Code?
8 l# q: L4 B6 l9 P7 {) A, |# oso funny, thanks a lot!

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好簡單, ICQ 應該係 Visual C++ 寫的 , 而係 Visual C++ 入面
. U: }( `" z3 KMaximum value for a variable of type "unsigned int" 係 4294967295 (0xffffffff) ( I& h% E9 u' H0 V- @
個 value 過左呢個 range 就會 overflow , 佢只會理最後個32bits 數 (即係好似返返轉頭 , 循環咁)
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0 + 4294967295 = 4294967295 (max)) W$ S$ y$ N6 f! o5 _1 c7 v
1 + 4294967295 = 0 + 4294967296 = 0 (because of overflow)  y# g+ f) ]+ p# p7 Z  ~) P' o
and so on....
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[ Last edited by gaye on 2005-6-19 at 06:57 PM ]

gaye

Originally posted by crap at 2005-6-19 07:14 PM:. `& D. u" K# h

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嘩

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小弟都係比較多睇電腦雜誌