gaye

Originally posted by secretfj at 2005-6-19 06:37 PM:
& {3 E# T6 R$ W" m( h6 o有無人知點解?
7 @5 ?( {8 @/ ]/ ^Server 的Backup Code?! z/ F+ e- n( f1 z# p! g/ A
so funny, thanks a lot!

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( Q  I; ~$ c6 J8 S好簡單, ICQ 應該係 Visual C++ 寫的 , 而係 Visual C++ 入面
: m: u/ i& g$ HMaximum value for a variable of type "unsigned int" 係 4294967295 (0xffffffff)
6 W) L9 B3 M( x: t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)
5 m4 W+ J( [9 Ge.g.
9 z! `) I- [  x0 + 4294967295 = 4294967295 (max)
# N' v4 q4 m0 a/ e% l# f* w% x5 i1 + 4294967295 = 0 + 4294967296 = 0 (because of overflow)$ s. N7 f' L  Z; c+ }, @/ @
and so on....3 M7 m5 ]3 u( ]7 Z
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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:$ s- s- R6 \3 i1 ]4 w( S
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嘩

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