gaye

Originally posted by secretfj at 2005-6-19 06:37 PM:
8 X( p2 {4 X) ~( O* E$ P有無人知點解?
: F' }: y( S$ [0 N2 o8 }7 _Server 的Backup Code?
$ _# e; E8 v& E! L  X# P* }so funny, thanks a lot!

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5 o  ^+ d3 r, F好簡單, ICQ 應該係 Visual C++ 寫的 , 而係 Visual C++ 入面
7 e1 M7 D7 e# O: `+ lMaximum value for a variable of type "unsigned int" 係 4294967295 (0xffffffff) 1 X* B+ f+ c+ K
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)2 H9 Z8 E- ~8 @5 u; G
e.g.  t, O4 ~6 }) G  [" {
0 + 4294967295 = 4294967295 (max)
) ^+ k5 d) I" E. Q3 g/ ]1 + 4294967295 = 0 + 4294967296 = 0 (because of overflow)
% _0 N: y* C5 D7 P1 Dand so on....2 i: @# V  Z7 Z' P8 }. h6 y

' U+ s9 Z  y. H% F[ Last edited by gaye on 2005-6-19 at 06:57 PM ]

gaye

Originally posted by crap at 2005-6-19 07:14 PM:6 l$ R; K/ Z. V$ _/ A4 [
# @! `5 e" J2 [8 j0 k4 f' v8 \6 x4 `
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嘩

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小弟都係比較多睇電腦雜誌