RE: [Boost-Users] Getting the hang of Boost::Bind

From: Sam Partington (sam.partington_at_[hidden])
Date: 2002-08-12 04:10:16

> std::vector<Landmark>::const_iterator iter =
>    std::find_if(v.begin(), v.end(),
>                 boost::bind<bool>(std::equal_to<std::string>(),
> 	                            boost::bind(&Landmark::getName, _1),
>  	                           name_to_find));

I've not started using boost::bind yet, but I've been meaning to for some
time, and I have read up on it, but one thing confuses me.

Am I right in thinking that boost::bind will automatically detect whether
the function call should be a->f(), a.f() or f(a)?

If so, how does it handle the (admittedly very pathological) situation like
this:

struct B;

struct A
{
        bool f();
        B* operator->();
};

struct B
{
        bool f();
};

bool f(const A& a);

std::vector<A>	v;

 std::vector<A>::const_iterator iter =
    std::find_if(v.begin(), v.end(), boost::bind(&A::f, _1));

Presumably it does the right thing and calls A::f, but how does it do that?

Cheers

sam