Re: [boost] [ANN] Phoenix-2 prerelease (supported operators)

From: dan marsden (danmarsden_at_[hidden])
Date: 2005-11-04 13:27:48

--- David Abrahams <dave_at_[hidden]> wrote:
>   
> > Member pointer operator
> > 
> > a->*member_object_pointer
> > a->*member_function_pointer
> > 
> > The left hand side of the member pointer operator
> must be an actor
> > returning a pointer type. The right hand side of
> the member pointer
> > operator may be either a pointer to member object
> or pointer to
> > member function.
> >
> > 
> > If the right hand side is a member object pointer,
> the result is a
> > composite providing lazy access to that member. 
> 
>   "an actor that, when invoked, returns a reference
> to that member."

I agree, clearer than my wording, I'll fix that.

> 
> > For example:
> > 
> > struct A
> > {
> >     int member;
> > };
> > 
> > A* a = new A;
> > ...
> > 
> > (arg1->*&A::member)(a); // returns member
> a->member
> > 
> > If the right hand side is a member function
> pointer, the result is a
> > delayed function call. The arguments to this call
> are then bound to
> > the returned composite. 
> 
> The wording is confusing.  "Delayed function call"
> has not been
> defined.  Why not just say that "the result is an
> actor that, when
> invoked, calls the specified member function?"  Is
> that inaccurate?
> 

I think it probably should say that as well, I agree
its clearer.

Thanks for the feedback.
Dan

                
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