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ï»??xml version="1.0" encoding="utf-8" standalone="yes"?>久久国产精品一区二区三区四区,小辣椒精品导航,亚洲欧美wwwhttp://m.shnenglu.com/shaojingliu/shaojingliuzh-cnMon, 29 Sep 2025 20:07:31 GMTMon, 29 Sep 2025 20:07:31 GMT60vtable½Cºæ„å›?/title><link>http://m.shnenglu.com/shaojingliu/archive/2013/03/04/198201.html</link><dc:creator>shaojingliu</dc:creator><author>shaojingliu</author><pubDate>Mon, 04 Mar 2013 07:29:00 GMT</pubDate><guid>http://m.shnenglu.com/shaojingliu/archive/2013/03/04/198201.html</guid><wfw:comment>http://m.shnenglu.com/shaojingliu/comments/198201.html</wfw:comment><comments>http://m.shnenglu.com/shaojingliu/archive/2013/03/04/198201.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://m.shnenglu.com/shaojingliu/comments/commentRss/198201.html</wfw:commentRss><trackback:ping>http://m.shnenglu.com/shaojingliu/services/trackbacks/198201.html</trackback:ping><description><![CDATA[<img src="http://www.learncpp.com/images/CppTutorial/Section12/VTable.gif" width="492" height="483" alt="" /><img src ="http://m.shnenglu.com/shaojingliu/aggbug/198201.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://m.shnenglu.com/shaojingliu/" target="_blank">shaojingliu</a> 2013-03-04 15:29 <a href="http://m.shnenglu.com/shaojingliu/archive/2013/03/04/198201.html#Feedback" target="_blank" style="text-decoration:none;">å‘è¡¨è¯„è®º</a></div>]]></description></item><item><title>vtable‹¹‹è¯•http://m.shnenglu.com/shaojingliu/archive/2013/03/04/198200.htmlshaojingliushaojingliuMon, 04 Mar 2013 07:03:00 GMThttp://m.shnenglu.com/shaojingliu/archive/2013/03/04/198200.htmlhttp://m.shnenglu.com/shaojingliu/comments/198200.htmlhttp://m.shnenglu.com/shaojingliu/archive/2013/03/04/198200.html#Feedback0http://m.shnenglu.com/shaojingliu/comments/commentRss/198200.htmlhttp://m.shnenglu.com/shaojingliu/services/trackbacks/198200.html 1 typedef unsigned int uint;
2 typedef void (*callPtr)();
3
4 class CBaseClass
5 {
6 public:
7     CBaseClass(){}
8     ~CBaseClass(){}
9     virtual void Print()
10     {
11         printf("Call: CBaseClass Print\n");
12     }
13 };
14
15 class CDeriveClass: public CBaseClass
16 {
17 public:
18     CDeriveClass(){}
19     ~CDeriveClass(){}
20     virtual void Print()
21     {
22         printf("Call: CDeriveClass Print\n");
23     }
24 };
25
26 int main()
27 {
28     // åˆ›å¾å¯¹è±¡ pDeriveA
29     CBaseClass* pDeriveA= new CDeriveClass();
30     // èŽ·å¾—å¯¹è±¡Açš„vtable
31     uint* pVTableA= (uint*)*((uint*)pDeriveA);
32     // å–å¾—vtableä¸ç¬¬0ä¸ªfunction
33     callPtr funcA= (callPtr)pVTableA[0];
34     // è°ƒç”¨Print
35     funcA();
36
37     // åˆ›å¾å¯¹è±¡ pDeriveB
38     CBaseClass* pDeriveB= new CDeriveClass();
39     // èŽ·å¾—å¯¹è±¡Bçš„vtable
40     uint* pVTableB= (uint*)*((uint*)pDeriveB);
41     // 2ä¸ªå¯¹è±¡çš„VTableåº”è¯¥ç›¸ç‰
42     printf("vtable %s\n", (pVTableA== pVTableB) ? "Equal!" : "Not Equal!");
43
44     return 0;
45 }
46

shaojingliu 2013-03-04 15:03 å‘è¡¨è¯„è®º

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