有没有办法在C ++函数中获取函数名？ [英] Is there a way to get function name inside a C++ function?

问题描述

我想实现一个函数跟踪器，它将跟踪函数执行的时间。我有以下类同样的： -

I want to implement a function tracer, which would trace how much time a function is taking to execute. I have following class for the same:-

class FuncTracer
{
    public:
    	FuncTracer(LPCTSTR strFuncName_in)
    	{
    		m_strFuncName[0] = _T('\0');
    		if( strFuncName_in ||
    			_T('\0') != strFuncName_in[0])
    		{	
    			_tcscpy(m_strFuncName,strFuncName_in);

    			TCHAR strLog[MAX_PATH];
    			_stprintf(strLog,_T("Entering Func:- <%s>"),m_strFuncName);
    			LOG(strLog)

    			m_dwEnterTime = GetTickCount();
    		}
    	}

    	~FuncTracer()
    	{
    		TCHAR strLog[MAX_PATH];
    		_stprintf(strLog,_T("Leaving Func:- <%s>, Time inside the func <%d> ms"),m_strFuncName, GetTickCount()-m_dwEnterTime);
    		LOG(strLog)
    	}

    private:
    	TCHAR m_strFuncName[MAX_PATH];
    	DWORD m_dwEnterTime;
};

void TestClass::TestFunction()
{
    // I want to avoid writing the function name maually..
    // Is there any macro (__LINE__)or some other way to 
    // get the function name inside a function ??

    FuncTracer(_T("TestClass::TestFunction"));
    /*
     * Rest of the function code.
     */
}

我想知道是否有任何方法从函数内部获取函数的名称？基本上我想让我的类的用户简单地创建一个对象是一样的。

I want to know if there is any way to get the name of the function from inside of a function? Basically I want the users of my class to simply create an object the same. They may not pass the function name.

推荐答案

VC ++有

__FUNCTION__ for undecorated names

和

__FUNCDNAME__ for decorated names

你可以编写一个宏，它将自己分配一个对象，并在构造函数中传递name-yelding宏。 Smth like

And you can write a macro that will itself allocate an object and pass the name-yelding macro inside the constructor. Smth like

#define ALLOC_LOGGER FuncTracer ____tracer( __FUNCTION__ );

这篇关于有没有办法在C ++函数中获取函数名？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！