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From: Douglas Gregor (gregod_at_[hidden])
Date: 2002-08-27 09:16:58

On Tuesday 27 August 2002 09:54 am, Peter Dimov wrote:
> > I needed the ability to determine if a type 'T' is a pointer or smart
> pointer
> > in Signals, and this helper is needed to create the is_pointerlike trait
> > check. Changes committed to CVS; no regressions AFAICT.
> Also, get_pointer for weak_ptr was deliberately omitted as dangerous. Why
> do you need it?

  void bar(weak_ptr<X> x)
    some_signal.connect(bind(&X::foo, x));

We need to get to the X* for the base-pointer conversion to trackable* (for
the automatic signal/slot disconnections). I guess it wouldn't be terribly
horrible if the Signals library just relied on forward declarations and
.get() to elimate the dependencies and not introduce the dependency on
type_traits/ice.hpp, if that would be preferable.


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