typedef a function pointer question..

This is a discussion on typedef a function pointer question.. within the C++ Programming forums, part of the General Programming Boards category; Code: typedef void (*fp)(int i, int j); void typedef_func(int i, int j) { cout << "i = " << i ...

  1. #1
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    typedef a function pointer question..

    Code:
    typedef void (*fp)(int i, int j);
    
    void typedef_func(int i, int j)
    {
    	cout << "i = " << i << " : j + " << j << endl;
    }
    
    int main()
    {
    	fp obj;
    	obj(5,6);
    
    	return 0;
    }
    from my understanding the above should work. but i can't seem to get it to work. please help out ..

  2. #2
    C++ Witch laserlight's Avatar
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    Your function pointer named obj was not initialised to point to typedef_func.
    Quote Originally Posted by Bjarne Stroustrup (2000-10-14)
    I get maybe two dozen requests for help with some sort of programming or design problem every day. Most have more sense than to send me hundreds of lines of code. If they do, I ask them to find the smallest example that exhibits the problem and send me that. Mostly, they then find the error themselves. "Finding the smallest program that demonstrates the error" is a powerful debugging tool.
    Look up a C++ Reference and learn How To Ask Questions The Smart Way

  3. #3
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    AAAAAAHhhhhhhhhh
    silly me.. learnt something new.

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