[sigc] bind arguments within mem_fun()

[Andreas Matthias <andreas matthias tuwien ac at>]

Is it possible to bind an argument to a function that is referenced
by mem_fun()?

Actually I want to achieve the effect of
   sigc::mem_fun(*this, &A::foo)(99);
but I need to bind 99 to &A::foo, since I need a nullary function
call.

Below you find an example exhibiting the problem.

Ciao
Andreas


#include <sigc++/sigc++.h>
#include <boost/bind.hpp>

struct A
{
    A()
    {
//	sigc::mem_fun(*this, &A::foo)(99);
	sigc::mem_fun(*this,
 		      boost::bind(&A::foo, boost::ref(*this), 99))();
    }

    void foo(int i){}
};

int main()
{
    A a;
}