gaye

Originally posted by secretfj at 2005-6-19 06:37 PM:% O3 _2 X" |. {+ k
有無人知點解?
3 W; V1 f. |% }Server 的Backup Code?
$ \$ F3 w; g0 {) Qso funny, thanks a lot!

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& @$ I1 A& z6 K. X: V. I( d好簡單, ICQ 應該係 Visual C++ 寫的 , 而係 Visual C++ 入面, @: g* o8 d! q1 Z  m6 H3 v7 v
Maximum value for a variable of type "unsigned int" 係 4294967295 (0xffffffff) / L! ]- s7 }3 m( p
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)
6 Z0 [4 _9 d- y' u0 g; xe.g.
2 ?. j1 Z- I7 Q, F0 + 4294967295 = 4294967295 (max)
9 E5 P: N* @0 [3 c! b1 + 4294967295 = 0 + 4294967296 = 0 (because of overflow)
1 B  b* N, X  K$ |( band 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:
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/ m) T& D6 `! Z$ K: k嘩

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小弟都係比較多睇電腦雜誌