Thread: how to make an inherited constructor private?

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    how to make an inherited constructor private?

    i have a base class and every thing is inherited from it .

    i want to make that base class private but when i try the inherited class complains when it trys to pass arguments back to it from when i make it .
    anyway i can make it private


    the base class contructor has a lot of info for setting up the class so , im not sure if i can make it abstract

  2. #2
    C++ Witch laserlight's Avatar
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    What do you mean by "make that base class private"? As in you are trying to use private inheritance?
    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

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    Quote Originally Posted by laserlight View Post
    What do you mean by "make that base class private"? As in you are trying to use private inheritance?
    just the constructor

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    C++ Witch laserlight's Avatar
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    Quote Originally Posted by thedodgeruk
    just the constructor
    Oh, then the solution is simple: just don't implement a similiar constructor in the derived class. Someone who wants to construct a derived class object has to use the derived class constructors, even though these in turn invoke a base class constructor. If you really do want to make the base class constructor non-public yet accessible from the derived class constructor(s), then declare that base class constructor as protected.
    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

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    Quote Originally Posted by laserlight View Post
    Oh, then the solution is simple: just don't implement a similiar constructor in the derived class. Someone who wants to construct a derived class object has to use the derived class constructors, even though these in turn invoke a base class constructor. If you really do want to make the base class constructor non-public yet accessible from the derived class constructor(s), then declare that base class constructor as protected.

    cheers , i made it protected , i thought what i wanted was not possible , was trying to make it like the way a singleton works , but could not get it right

  6. #6
    Officially An Architect brewbuck's Avatar
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    uh, constructors aren't inherited... I'm not sure what you are worrying about.
    Code:
    //try
    //{
    	if (a) do { f( b); } while(1);
    	else   do { f(!b); } while(1);
    //}

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