warning w8022 ...hides virtual function...

[wouterlammers]

Hello,

With this piece of code the c++ builder compiler correctly emits the warning:
[BCC32 Warning] Unit1.cpp(23): W8022 'Derived::Overload(float)' hides virtual function 'Base::Overload(int)'

code:

struct Base
{
   virtual void Overload(int) { Form1->Memo1->Lines->Add("Base::int"); }
};

struct Derived: Base
{
   virtual void Overload(float) { Form1->Memo1->Lines->Add("Derived::float"); }
};

My problem is that if I include 'using Base::Overload;' into the declaration of the derived class the warning does not go away. Even though the base function is correctly pulled into overload resolution for Derived. Is this a c++ builder quirk? I have been using c++ builder 6.0 and now am using codegear c++ builder 2007, both have this issue.

 

[2ffat]

I'm going to hazard a guess here but I would say that this is a Borland/CodeGear quirk. Somewhere I've read that how compilers handle situations like this is up to the compiler implementation. Different compilers may handle this situation differently.

Note that this is a warning and not an error. It may work the way you expect it to but then again . . .



James P. Cottingham
-----------------------------------------
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