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Compiler error when overriding virtual methods


Compiler error when overriding virtual methods

By : Lincoln Lamas
Date : January 02 2021, 06:48 AM
Hope that helps Using VC71 compiler and get compiler errors, that i don't understand. Here comes the example
code :


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C++ and virtual methods overriding

C++ and virtual methods overriding


By : John
Date : March 29 2020, 07:55 AM
like below fixes the issue Sorry for this stupid question, but I can't find an answer by myself, I'm too new in C++ :( , Based on the OP's followup comment:
Overriding Qualified Virtual Methods

Overriding Qualified Virtual Methods


By : user2896295
Date : March 29 2020, 07:55 AM
I hope this helps you . Microsoft allows that syntax (it's available beginning in Visual C++ 2005). They also introduced a new, more powerful syntax for managed code only.
Neither one was included in C++0x.
code :
class BaseA
{
protected:
    virtual void myFunc();  // does some task
};
class BaseB
{
protected:
    virtual void myFunc();  // does some other task
};
class ShimA : virtual BaseA
{
    virtual void myFunc() { myFuncA(); }
protected:
    virtual void myFuncA() { BaseA::myFunc(); }
};
class ShimB : virtual BaseB
{
    virtual void myFunc() { myFuncB(); }
protected:
    virtual void myFuncB() { BaseB::myFunc(); }
};
class Derived : public virtual BaseA, public virtual BaseB, protected ShimA, protected ShimB
{
     virtual void myFuncA() {}
     virtual void myFuncB() {}
};
Overriding non-virtual methods

Overriding non-virtual methods


By : Kriscia Alacar
Date : March 29 2020, 07:55 AM
hop of those help? Yep, you are misunderstanding a little.
The method of the same name on the derived class will hide the parent method in this case. You would imagine that if this weren't the case, trying to create a method with the same name as a base class non-virtual method should throw an error. It is allowed and it's not a problem - and if you call the method directly as you have done it will be called fine.
code :
Base *b = &ba;
b->Display();
b->vDisplay();
b = &de;
b->Display();
b->vDisplay();
Overriding Non-Virtual methods?

Overriding Non-Virtual methods?


By : Friend Bilad Hasan
Date : March 29 2020, 07:55 AM
hope this fix your issue Below is some code that is intended to show when the virtual method is overridden. It outputs: B B A A B A Is this correct? I thought the bar method could not be overridden...? , I don't see anything wrong:
.Net Native Internal Compiler Error NUTC3028 when overriding mixed generic methods

.Net Native Internal Compiler Error NUTC3028 when overriding mixed generic methods


By : John Doe
Date : March 29 2020, 07:55 AM
this one helps. I think this is corrected if you move to Windows Tools 1.3.1 (aka VS 2015 Update 2). You can see more discussion about it here: https://github.com/mathnet/mathnet-numerics/issues/361
Do let me know if you find that to not be the case.
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