网上发现的一个打印当前函数名称的例子！

#include <iostream>
//#include <comutil.h> //头文件一定是下面的这个，否则会出现错误
#include <comdef.h>
using namespace  std;

class _TestTrace
{
    _bstr_t m_bstrName;
public:
    _TestTrace(_bstr_t bstrName):m_bstrName(bstrName)
    {
		cout << "****** begin: " << (LPCTSTR)m_bstrName << "******" << endl;
    }
    ~_TestTrace()
    {
		cout << "****** end: " << (LPCTSTR)m_bstrName << " ******" << endl;
    }
};

#ifndef _TT
#define _TT _TestTrace _tt(__FUNCTION__);
#endif


void myfunction()
{
	_TT;
	cout << "function" << endl;

}
int main()
{
	myfunction();	
	return 0;
}