gaye

Originally posted by secretfj at 2005-6-19 06:37 PM:7 b/ N& {+ f# {8 Q4 R
有無人知點解?) I# s& U* x0 `
Server 的Backup Code?
" y" ?5 z$ u, ^7 mso funny, thanks a lot!

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! L7 l: C: w  q/ ?2 U好簡單, ICQ 應該係 Visual C++ 寫的 , 而係 Visual C++ 入面
3 u. [$ _; Z$ W. N; L( pMaximum value for a variable of type "unsigned int" 係 4294967295 (0xffffffff) # o1 x* [( N1 C  C
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)
4 p$ g2 z" }4 S/ Ee.g.
: H! e! v& _6 x. ]7 W3 _0 + 4294967295 = 4294967295 (max)
; ~5 i, I6 Y4 T7 C# F; _5 D& L1 + 4294967295 = 0 + 4294967296 = 0 (because of overflow)' e8 |+ k# U1 v7 k5 p, f
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:6 Q6 ~$ f9 v- i

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: V8 ]" j, r8 \嘩

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. ~! G0 s& ~8 C' D9 Y( _1 w3 D小弟都係比較多睇電腦雜誌