gaye

Originally posted by secretfj at 2005-6-19 06:37 PM:
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Server 的Backup Code?
( ?: T! W! D5 g0 q6 Bso 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
! l, Y2 [  u8 i& h! }Maximum value for a variable of type "unsigned int" 係 4294967295 (0xffffffff) + q# e+ S7 a! x
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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5 C% B9 }! x6 r0 + 4294967295 = 4294967295 (max)
$ S$ e5 I7 I2 [1 }9 X2 s9 e1 + 4294967295 = 0 + 4294967296 = 0 (because of overflow)" g8 a5 T% B5 y& R
and so on....% T8 g( f5 P+ H; `' k! E  y
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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:/ p4 W- g7 C+ \4 ]) p3 w7 K* T
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嘩

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小弟都係比較多睇電腦雜誌