CppDelegate

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1 개요

콜백 함수 구현.

2 간단한 클래스 멤버 함수 콜백

class TestClass
{
private:
    typedef void (TestClass::*PFN_CALLBACK)(int, int);

    PFN_CALLBACK m_pfnCallbacks[3];


public:
    TestClass()
    {
        m_pfnCallbacks[0] = &TestClass::FirstFunction;
        m_pfnCallbacks[1] = &TestClass::SecondFunction;
        m_pfnCallbacks[2] = &TestClass::ThirdFunction;
    }
    
    void ExecRandom(int which)
    {
        int lparam = rand();
        int rparam = rand();

        (this->*m_pfnCallbacks[which])(lparam, rparam);
    }


private:
    void FirstFunction(int lparam, int rparam) { ... }
    void SecondFunction(int lparam, int rparam) { ... }
    void ThirdFunction(int lparam, int rparam) { ... }
};

...
TestClass t;
t.ExecRandom(rand() % 3);

지저분하지만 가끔 필요할 때가 있다.

3 링크

• Generalized Function Pointers
  
• Using class methods as callbacks
  
• Member Function Pointers and the Fastest Possible C++ Delegates
  
• A new way to implement Delegate in C++
  
• Callbacks in C++
  
• Callbacks in C++ using template functors
  
• Simplify Callback Dispatching with Enumerated Indexes
  
• Fast Delegates for Effective Game Logic in C++
  

• see also Cpp, CallingConvention
  

• CategoryLanguage