gaye

Originally posted by secretfj at 2005-6-19 06:37 PM:, G& ~9 e% A  d0 i4 J+ g
有無人知點解?- Q0 e. G% r5 h/ b$ `
Server 的Backup Code?4 |/ s5 p' i1 s+ G
so funny, thanks a lot!

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+ t3 I$ g3 y& O% r+ y% a6 o+ m好簡單, ICQ 應該係 Visual C++ 寫的 , 而係 Visual C++ 入面2 n" m! i- K  K$ y
Maximum value for a variable of type "unsigned int" 係 4294967295 (0xffffffff)
/ e+ `* ?1 |1 q5 s, Z0 M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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" A- Q4 b" K% u7 `$ ^4 f0 + 4294967295 = 4294967295 (max)
$ k' @) N4 x. [+ I. q5 [( n1 + 4294967295 = 0 + 4294967296 = 0 (because of overflow)
' f( @0 {- r& g! cand so on....; t- r; x( F% S3 Y3 g# s

4 @/ m, q/ l# A8 K[ Last edited by gaye on 2005-6-19 at 06:57 PM ]

gaye

Originally posted by crap at 2005-6-19 07:14 PM:
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嘩

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小弟都係比較多睇電腦雜誌