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+---- Thread: [C] Question Inherit the functions of a metaprogrammed class (/showthread.php?tid=6113921)
Question Inherit the functions of a metaprogrammed class - minerw - Oct 5, 2020
Hi, while trying to hone my skills by creating a meta-programmed class construct along with the concepts of inheritance I came across this oddity (it's a simplified version of what I'm trying to do):
C++:
#include <iostream>
template<class T>
class BASE
{
public:
void func()
{
std::cout << "Hello world";
}
};
template<class T>
class DERIVED : public BASE<T>
{
public:
void func2()
{
func(); // <-- 'func': identificatore non trovato
}
};
int main()
{
DERIVED<int> obj;
obj.func2();
}
As you can guess from the comment, the func (); included in the scope of func2 (); is not recognized, while in the case of a non meta-programmed class the code would be compiled without errors:
C++:
#include <iostream>
class BASE
{
public:
void func()
{
std::cout << "Hello world";
}
};
class DERIVED : public BASE
{
public:
void func2()
{
func();
}
};
int main()
{
DERIVED obj;
obj.func2();
}
I've also tried making func2 (); a virtualization of func () ;, but the function call func (); gives rise to a buffer overflow.
C++:
#include <iostream>
template<class T>
class BASE
{
public:
virtual void func()
{
std::cout << "Hello world";
}
};
template<class T>
class DERIVED : public BASE<T>
{
public:
void func() override
{ // Buffer overflow
func();
}
};
int main()
{
DERIVED<int> obj;
obj.func();
}
So I wonder, how is it possible to do such a thing: ???:?
RE: Question Inherit the functions of a metaprogrammed class - hell-o-world - Oct 7, 2020
Would love to see this question answer 😀 I started learning class and struct yesterday
Thanks have a good day all !