typeid_2.cpp
来源：互联网 发布：su移动复制 mac 编辑：程序博客网 时间：2024/06/02 14:39
<iframe name="google_ads_frame" marginwidth="0" marginheight="0" src="http://pagead2.googlesyndication.com/pagead/ads?client=ca-pub-5572165936844014&dt=1194442938015&lmt=1194190197&format=336x280_as&output=html&correlator=1194442937843&url=file%3A%2F%2F%2FC%3A%2FDocuments%2520and%2520Settings%2Flhh1%2F%E6%A1%8C%E9%9D%A2%2FCLanguage.htm&color_bg=FFFFFF&color_text=000000&color_link=000000&color_url=FFFFFF&color_border=FFFFFF&ad_type=text&ga_vid=583001034.1194442938&ga_sid=1194442938&ga_hid=1942779085&flash=9&u_h=768&u_w=1024&u_ah=740&u_aw=1024&u_cd=32&u_tz=480&u_java=true" frameborder="0" width="336" scrolling="no" height="280" allowtransparency="allowtransparency"></iframe> #include <iostream.h>
#include <typeinfo.h>
class Base {
int a, b;
virtual void func(void) {};
};
class Derived1: public Base {
int i, j;
}
class Derived2: public Base {
int k;
}
void main(void)
{
int i;
Base *p, baseobj;
Derived1 obj1;
Derived2 obj2;
cout << "Typeid of i is: ";
cout << typeid(i).name() << endl;
p = &baseobj;
cout << "p is currently pointing to an object of type: ";
cout << typeid(*p).name() << endl;
p = & obj1;
cout << "p is now pointing to an object of type: ";
cout << typeid(*p).name() << endl;
p = & obj2;
cout << "p is finally pointing to an object of type: ";
cout << typeid(*p).name() << endl;
}
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