Re: [Boost-users] Comparing boost bind object with a pointer to member function

Subject: Re: [Boost-users] Comparing boost bind object with a pointer to member function
From: jej (ed.jung_at_[hidden])
Date: 2010-08-31 06:05:51

Yes, that does work, but actually is not quite what I want to do.  I made a
mistake in the original example.  
In the corrected example, what I really want is for the second case to
return "bound match," which it doesn't do.  

The line above the comparison doesn't compile, and even so, is not quite
what I would like either.  That is, I want to know which member function the
func object is bound to, and don't really care about the values of the
arguments (which I don't know).  Thanks!

int main(int, char**) 
{ 
    Data d(1, 2); 

    Foo fx, fy; 

    boost::function<void (Foo*, const Data&)> bf(&Foo::FuncTwo); 
    if(bf == &Foo::FuncTwo) 
    { 
        cout << "match" <<endl; 
    } 
    else 
    { 
        cout << "no match" << endl; 
    } 

    boost::function<void (Foo*)> func = boost::bind(&Foo::FuncTwo, _1, d);
   //if(func == boost::bind(&Foo::FuncTwo, _1, d))  //doesn't compile
    if(func == &Foo::FuncTwo)
    {
        cout << "bound match" << endl;
    }
    else
    {
        cout << "no bound match" << endl;
    }

    return 0; 
}
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