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duke2015 (14)
Can I pass a member function of a class as a parameter to another function?

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#include <string>
#include <vector>

class Window {
    vector<string> screens;
public:
    typedef vector<string>::size_type index;
    void clear(index);
};
void RefreshScreen((*pw)(Window::index)) {
    pw(0);
}

int main()
{
    Window testwindow;
    RefreshScreen(testwindow.clear);    //won't compile
    return 0;
}
koothkeeper (429)
You need the parentheses on line 17:

RefreshScreen( testwindow.clear() );
duke2015 (14)
I've tried, the compiler produce an error: non-standard syntax; use '&' to create a pointer to member. Actually, testwindow.clear should have already been a pointer, weird complier, I've met several times before.
koothkeeper (429)
You have to also pass a value to testwindow.clear().
duke2015 (14)
yeah, I've tried that too, for instance: RefreshScreen(testwindow.clear(0)). Neither of them would compile. Actually, testwindow.clear(0) yields a value, which is void here, not a pointer, as you know.
Last edited on
koothkeeper (429)
Can you show your latest code?
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