pointer to a member function

[Allan Bruce]

How does one setup a pointer to a member function?
In C, I usually do:

void (*SetKey)(char); // declare a pointer to a function
SetKey = &gPrefs->SetUp; // set the pointer to a valid function
SetKey(lMsg.wParam); // call the function pointed to

but I get errors in cpp, how do I do this?
Thanks
Allan

 

[Mike Wahler]

How does one setup a pointer to a member function?
In C, I usually do:

void (*SetKey)(char); // declare a pointer to a function
SetKey = &gPrefs->SetUp; // set the pointer to a valid function
SetKey(lMsg.wParam); // call the function pointed to

but I get errors in cpp, how do I do this?

RTFF.

http://www.parashift.com/c++-faq-lite/pointers-to-members.html

-Mike

 

[Dave]

void (*SetKey)(char); // declare a pointer to a function

SetKey = &gPrefs->SetUp; // set the pointer to a valid function
SetKey(lMsg.wParam); // call the function pointed to

but I get errors in cpp, how do I do this?
Thanks
Allan

class foo
{
public:
void func() {}
};

int main()
{
foo f;
void (foo::*ptr)() = &foo::func;
(f.*ptr)();
}