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Dwindle

Mon Mar 27, 2006 10:50 am


Inheritance/Constructor problem

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class Base 
{ 
      protected: 
            int x, y; 
      public: 
            Base() : x(0), y(0) 
                  { } 
            Base(int nx, int ny) : x(nx), y(ny) 
                  { } 
}; 

class Derived : public Base 
{ 
      protected: 
            int z; 
      public: 
            Derived() : x(0), y(0), z(0) 
                  { } 
}; 


I get an error at the Derived constructor line when I try to compile. Apparently the x and y fields don't exist but I know it does since it's inherited from the base class. Also if I put it as normal assignment statements inside the brackets it'll work but I really shouldn't have to do that should I? This is the simplified version of an actual program I'm working on and I wanted to split up the initializing variables part of the contructor from some stuff I actually wanted it to do. I'm using Dev-Cpp and I'm wondering if this code works ok for other people.

Also how do I indent certain lines when I post? I tried just adding spaces before but that doesnt work.


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wtd

Mon Mar 27, 2006 12:47 pm



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Use code tags.

[code]foo   bar[/code]

foo   bar

As for your problem... why are you not simply calling the Base class' constructor from the Derived class?


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Dwindle

Mon Mar 27, 2006 8:15 pm



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thanks, both problems solved.