gaye

Originally posted by secretfj at 2005-6-19 06:37 PM:/ M/ V, C5 w' l. O2 C, p
有無人知點解?
. `/ A/ p+ o# a5 h/ g1 rServer 的Backup Code?
2 q0 N' _4 X, `5 E0 j( b! c- @+ z7 eso 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
, z# l, _3 `: c, Z& d$ L6 gMaximum value for a variable of type "unsigned int" 係 4294967295 (0xffffffff)
. o- }3 X8 i9 U/ l9 f1 q9 d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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0 + 4294967295 = 4294967295 (max)
& `, Q$ g; ?9 B5 q) F, r' t9 |& X. Z1 + 4294967295 = 0 + 4294967296 = 0 (because of overflow)- a: E3 M& h+ d  K& ~1 C6 X3 h9 K
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:
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小弟都係比較多睇電腦雜誌