Re: [Algorithms] C++ inherited constructors
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From: Timur D. <ti...@3d...> - 2000-07-16 09:12:57
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Because base constructor will not call member method virtually, it will call base class method. _______________________ Timur Davidenko. 3Dion Inc. (www.3dion.com) e-mail: ti...@3d... ----- Original Message ----- From: "Aaron Drew" <ri...@ho...> To: <gda...@li...> Sent: Sunday, July 16, 2000 9:41 AM Subject: RE: [Algorithms] C++ inherited constructors > Why not have your base class constructor call a virtual private member > function and overload that function in the derived class? > > > -----Original Message----- > > From: gda...@li... > > [mailto:gda...@li...]On Behalf Of Matt > > Adams > > Sent: Saturday, July 15, 2000 9:19 PM > > To: gda...@li... > > Subject: Re: [Algorithms] C++ inherited constructors > > > > > > > > I need this for aesthetic reasons :) > > I've got an abstract CThread class. If a want to create a new thread, I > > build my process class and inherit CThread, which creates a new thread by > > construction. > > Now I want my main-threadloop-class to inherit CThread, too, to > > provide all > > the thread functionality to my main thread. But that thread already exists > > created by compiler ), and shouldn't be created again by CThread. > > Of course I can put CThread () and ~CThread () in functions like Create() > > and Destroy() and leave the constructor / destructor empty. But it'd be > > nicer if it could be done in another way... > > > > ----- Original Message ----- > > From: Favnir > > To: gda...@li... > > Sent: Saturday, July 15, 2000 1:32 PM > > Subject: Re: [Algorithms] C++ inherited constructors > > > > The only way you can do this is to define a (preferably) protected > > do-nothing constructor for the base class, and inherit it in the subclass > > constructor. > > > > But, why in the world would you need to do this, in the first place? > > > > Are, > > F > > > > ----- Original Message ----- > > From: Matt Adams > > To: gda...@li... > > Sent: Saturday, July 15, 2000 12:22 PM > > Subject: [Algorithms] C++ inherited constructors > > > > > > Hi, > > > > I got a question about the C++ class hierarchy. > > > > class a > > { > > a () {...}; // constr a > > }; > > > > class b : a > > { > > b () {...}; // constr b > > }; > > > > b instance; > > > > When creating an instance of b, constructors for both class a and class b > > are called. > > Is there a way to suppress the automatic calling of constructor a ? > > Or something like 'overloading' the old constructor by a new one ? > > I couldn't find anything like that in the compiler docs. > > > > Any help appreciated, > > Matt > > > > > > _______________________________________________ > > GDAlgorithms-list mailing list > > GDA...@li... > > http://lists.sourceforge.net/mailman/listinfo/gdalgorithms-list > > > > > > _______________________________________________ > > GDAlgorithms-list mailing list > > GDA...@li... > > http://lists.sourceforge.net/mailman/listinfo/gdalgorithms-list > > > > > _______________________________________________ > GDAlgorithms-list mailing list > GDA...@li... > http://lists.sourceforge.net/mailman/listinfo/gdalgorithms-list > |