how to get object name in c++?

Question

hi ,

i am trying to get the object name, see the code below, but not able to find method, what could be the code in place of ???????.

#include "iostream"
using namespace std;
class A{
public:
int i;
void printObjectname(){
cout << ????????;//<--what could be here, to print the object name as 'objectA'
}
};

int _tmain(int argc, _TCHAR* argv[])
{
A *objectA = new A();
objectA->printObjectname();

return 0;
}

Answer 1

include the header file and use function typeid()



http://publib.boulder.ibm.com/infocenter/pseries/v5r3/index.jsp?topic=/com.ibm.xlcpp8a.doc/language/ref/the_typeid_operator.htm

Answer 2

Sorry, there's no such thing in C++. You have to do this manually, i.e. change the code in every class:



virtual void printObjectname() { cout "A"; }



or even better:

virtual const char *getClassname() { return "A"; }



make the function virtual, then it can be overwritten in inherited classes.

Answer 3

You have read the documentation of C++.