class ClassB
{
public:
void function();
};
class ClassA
{
public:
ClassB member;
void validate(void (*pfn)());
};
int main()
{
ClassA classA;
classA.validate(classA.member.function);
}
OOP problem (c++)
Author
Ok I have a class (lets call the first class ClassA)that has another class (ClassB) as its member. I made it so ClassB has a member function that has to be validated by a ClassA funtion (Im starting to think this wasnt as smart as I thought it would be). Anyway I figured I could pass a pointer, that points to the ClassB function, into the ClassA function. Incase Ive lost you already heres an illustration.
When I do that I get a error saying Im not passing the right kind of argument. I tried alot of different things like casts and using the & operater but I just got more errors. Can anyone tell me the right way to do this? Mabey my OOP design sucks if I even have this problem. Is there a way I can Access ClassA data members from within ClassB methods? if so I wouldnt have to pass pointers around.
You cannot pass a member function to a normal function pointer. They're different beasts. function-pointer.org for the gory details.
This structure looks pretty suspicious to me, especially in an "OOP" context. What are you hoping to accomplish?
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