gaye

Originally posted by secretfj at 2005-6-19 06:37 PM:
: O- B3 D' r+ r, k5 u有無人知點解?
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so 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, L7 B, {2 S1 y3 h- n
Maximum value for a variable of type "unsigned int" 係 4294967295 (0xffffffff)
5 H! C; x& N# n. G$ {4 I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)  N, C8 o3 J9 a1 `9 s) t
e.g.
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1 + 4294967295 = 0 + 4294967296 = 0 (because of overflow)
/ S0 `3 F# S$ P% J2 k6 Tand so on....
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5 g8 ]" B, l/ n3 W. r  w[ Last edited by gaye on 2005-6-19 at 06:57 PM ]

gaye

Originally posted by crap at 2005-6-19 07:14 PM:+ q- H  S" x/ }2 _. [. a; b2 b
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小弟都係比較多睇電腦雜誌