Peter Dimov writes:
I'm not sure what you mean. What functionality ought to be pushed into boost::bind?
The ability to build an always(whatever) function object:
f = boost::bind(t);
This is not an improvement over
f = constant( t );
Yep, hardly.
It still needs a glue call. Also, it doesn't make much sense to use boost::bind for this functionality, because constants do not have any arguments that could be bound. The bind way to make a constant is bind( identity<T>(), t ).
The original motivating example is this:
struct button { boost::function<bool()> is_enabled;
How about function_property< boost::function<bool()> > is_enabled; or function_property<bool()> is_enabled; or even property<bool()> is_enabled; which makes this:
};
bool sometimes();
int main() { button b;
b.is_enabled = true; b.is_enabled = false; b.is_enabled = sometimes; }
work? -- Aleksey Gurtovoy MetaCommunications Engineering