How to solve inheritance and virtual error from two class

Question

How to make this work (https://www.sololearn.com/en/compiler-playground/cf5D2ah15iO1) ? I am getting error in below code:

#include <iostream>

class testInt
{
protected:
virtual int valueFromText() const;
};

class testDouble
{
protected:
virtual double valueFromText() const;
};

template<class T>
class test : public testInt, public testDouble
{
protected:
virtual double valueFromText() const override;
};

int main()
{

test<int> obj1;

return 0;
}

Answer 1

maybe you need a conditional check? It seems that the compiler cannot determine which method to use. I adapted Solo's typechecking code.

https://sololearn.com/compiler-playground/c2YEUS4kMXn4/?ref=app

Answer 2

Perfect Bob_Li