指教函数指针问题!!

[javatalk]

Class Test
{
public:
 typedef void(Test::*func)();

 func m_fn;

public:
 void func1(){
  //do something...
 }
 void func2(){
  //do something...
 }
 void Setupfn(BOOL bSign){
  if(bSign){
    m_fn = &Test::func1;
  }{
    m_fn = &Test::func2;
  }
 }
 void run(){
  m_fn();
  //or   this->*m_fn();
 }
}

Test t;
t.Setupfn(TRUE);
t.run();

为什么编译老报错。。。提示:error C2064: 项不会计算为接受 0 个参数的函数
请问出了什么问题？

[独孤过儿]

类结尾少了个分号...

[ttkk_2007]

 class Test   //小写class
{
public:
 typedef void(Test::*func)();

 func m_fn;

public:
 void func1(){
  //do something...
 }
 void func2(){
  //do something...
 }
 void Setupfn(bool bSign){
  if(bSign){
    m_fn = &Test::func1;
  }{
    m_fn = &Test::func2;
  }
 }
 void run(){
  (this->*m_fn)();   //这个地方你用错了
  //or   this->*m_fn();
 }
};   //缺分号

[javatalk]

不是这个问题，类结尾有分号，只是这里忘了加。若注释掉run()里面的m_fn();程序编译通过。

[Treazy]

m_fn();
  //or   this->*m_fn();
改成

(this->*m_fn)();

[javatalk]

谢谢楼上改正。将this->*m_fn();改成(this->*m_fn)(); 就编译通过了。。。真郁闷！！！！

[myullian]

学习

[独孤过儿]

#include <iostream>
using namespace std;

class Test 
{ 
public: 
	typedef void(Test::*func)(); 
	func m_fn; 
public: 
	void func1()
	{ 
		//do something...  
	} 
	void func2()
	{ 
		//do something...  
	} 
	void Setupfn(bool bSign)
	{ 
		if(bSign)
		{ 
			m_fn = &Test::func1; 
		}
		else    //这里是有个else吧...
		{ 
			m_fn = &Test::func2; 
		} 
	}
		
	void run()
	{ 
		(this->*m_fn)(); 
		//or this->*m_fn();  
	} 
};


int main()
{
	Test t;
	t.Setupfn(true);
	t.run();
	return 0;
}