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3#
發表於 2005-6-19 06:50 PM
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Originally posted by secretfj at 2005-6-19 06:37 PM:
( i. _, y# Q) k* }有無人知點解?4 F0 G6 N3 W+ T" M, N4 w
Server 的Backup Code?
, h8 u2 X" }0 K9 s/ Tso funny, thanks a lot! + \, M: z$ t8 X# v- g
" ~! y# x+ U i0 G$ b4 x好簡單, ICQ 應該係 Visual C++ 寫的 , 而係 Visual C++ 入面- B0 P6 H. k4 W j# ?7 f0 l
Maximum value for a variable of type "unsigned int" 係 4294967295 (0xffffffff) 6 S( @) B% F, {' m
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)
( I% C! W( J# j$ M' p8 b1 + 4294967295 = 0 + 4294967296 = 0 (because of overflow)6 ~" `5 W( o% M& [ N
and so on....7 y- }. G) Q; H" _, O5 A" M& ?
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[ Last edited by gaye on 2005-6-19 at 06:57 PM ] |
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