Preventing methods from being inherited

[PredicateNormative]

It's difficult to understand the context here without some code, but have you considered inheriting publically, but making the class functions you want invisible protected?

class A
{
public:
  int publicFunction(){return 5;}
  virtual ~A(){}

protected:
  int protectedFunction(){return 7;}
};

class B : public A
{

};

int main()
{
  B b;
  std::cout << b.publicFunction() << std::endl; //OK
  std::cout << b.protectedFunction() << std::endl; //compile error
};

That way class B can see the protected member functions of class A but the functions are not public to those outside.