gaye

Originally posted by secretfj at 2005-6-19 06:37 PM:) W8 V4 ?4 H( p9 B9 e7 e% f
有無人知點解?/ e) o+ z# T( W  o) P& \. G3 e
Server 的Backup Code?
! T  H- I4 E% V8 ^& D8 ~9 yso funny, thanks a lot!

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. }" H3 B  `; Y2 x" D0 C好簡單, ICQ 應該係 Visual C++ 寫的 , 而係 Visual C++ 入面
& g5 H9 v9 R7 LMaximum value for a variable of type "unsigned int" 係 4294967295 (0xffffffff)
5 P; F7 z- i4 b4 z8 v7 Y6 u9 ?, w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)$ r# ?$ ]% r+ }9 R
e.g.
: g% M7 b: i2 I4 [' C! w$ `0 + 4294967295 = 4294967295 (max)+ V/ p' T1 L0 g' `: \+ }: G
1 + 4294967295 = 0 + 4294967296 = 0 (because of overflow)* E  x- `; \2 Q0 c, r- m
and so on....7 B, u% m3 |1 Y6 r6 @

4 `, P- K: Q/ g. l* z/ R[ Last edited by gaye on 2005-6-19 at 06:57 PM ]

gaye

Originally posted by crap at 2005-6-19 07:14 PM:8 q6 W& }7 ^- _" i; B

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嘩

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% ]/ a* @' L$ c8 ]2 n- q: |5 o: X. i小弟都係比較多睇電腦雜誌