CMyClass *pointer_to_member;
void myfunc()
{
pointer_to_member->myfunc();
}
void anotherfunction()
{
myconsole->register( myfunc );
}
Function pointers & member functions
Author
I am using function pointers for some aspects of my game. My Console class has a RegisterCommand() function, that will save a pointer to a function, and will call this function if the appropriate name will be typed into the console. This works fine for non-member functions, but what can I do if I want to register a member function of a class? I know that I can create something like this:
This way seems to be ugly in my eyes, although it works.
Can I solve this problem in another way?
You have to specify which class instance the function is called on, which will ultimately amount to what you proposed anyway given the proposed signature for the registration function.
A better approach would be to alter the registration function signature and use a functor to emulate closures:
A better approach would be to alter the registration function signature and use a functor to emulate closures:
class Functor{public: virtual void operator()() = 0;};template <typename T>class CallMember : public Functor{ void T::(*member)(); T& target;public: CallMember(T& target, void T::(*member)()) : target(target), member(member) {} void operator()() { target.(*member)(); }}; This topic is closed to new replies.
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