[jammy47]

HI guys, I am trying to get the address of a member function in a class and store it a void pointer within the class. How do i do that?

[aeiro]

maybe this could help. I didn't actually read it over but it sounds similar.
http://stackoverflow.com/questions/12988...r-function

[jammy47]

maybe this could help. I didn't actually read it over but it sounds similar.
http://stackoverflow.com/questions/12988...r-function

Well, thats not exactly the thing i was looking for, but i got my answer from stackexchange.

It seems you can get the address of a member function like this.......


void * a;

a = &A::func();

This gets the address of func from within class A. So yeah, my problem was solved.

[Goodies]

Well, you kind of can't.
http://www.dietmar-kuehl.de/mirror/c++-f...l#faq-33.7

What are you trying to do? The general way of getting a member function is by typedefing a member function pointer (or using auto if you're brave enough).

PHP Code


<?php 
#include <iostream>
#include <functional>
#include <string>

class Foo
{
public:
    typedef void (Foo::*vfuncptr)(void);
    Foo(int i) : m_i{i}
    { }

    void print(void)
    {
        std::cout << m_i << std::endl;
    }

private:
    int m_i;
};


int main(int argc, char **argv)
{
    Foo f1(7);
    Foo f2(3);

    Foo::vfuncptr ptr = &Foo::print;
    // converting 'ptr' to a (void*) is a no-no.

    (f1.*ptr)();
    (f2.*ptr)();

    return 0;
} 


There's probably a better way of doing whatever you're trying to do... like, for example, std::function. This would be way better.

PHP Code


<?php 
int main(int argc, char **argv)
{
    Foo f1(7);
    Foo f2(3);

    std::vector<std::function<void()>> vec;
    vec.push_back(std::bind(&Foo::print, &f1));
    vec.push_back(std::bind(&Foo::print, &f2));

    for(auto func : vec)
    {
        func();
    }
    return 0;
} 


---

or lambdas <3

PHP Code


<?php 
std::vector<std::function<void()>> vec;
vec.push_back([&f1](){f1.print();});
vec.push_back([&f2](){f2.print();});