On Thursday 15 August 2002 11:08 am, Lars Gullik Bjønnes wrote:
> | Ahhh. I'd forgotten about that. Did you manage to isolate the problem and
> | tell boost the list about it?
>
> No.
Well then, the trick is to replace
static boost::signal0<void> some_signal;
with a static method returning a reference to a signal:
static boost::signal0<void> & some_signal();
and to get this method to initialise the boost::signal0<void> dynamically.
Will this do the trick:
template<typename Signal>
class BugfixSignal {
public:
Signal & operator()() { return thesignal(); }
Signal const & operator()() const { return thesignal(); }
private:
Signal & thesignal() const
{
if (!signal_.get())
signal_.reset(new Signal);
return *signal_;
}
boost::scoped_ptr<Signal> signal_;
};
class Dialogs {
public:
static boost::signal0<void> & redrawGUI();
};
boost::signal0<void> & Dialogs::redrawGUI()
{
static BugfixSignal<boost::signal0<void> > thesignal;
return thesignal();
}
