Re: [ALACPP] boost::function shortcoming

[Christopher Smith <x@xxxxxxxx>]

We talked about this at our last meeting didn't we? Oh wait, you weren't
there..... ;-)

On Tue, 2003-07-29 at 16:39, Gavin Doughtie wrote:
> So, I was wondering if there was a way to compare two boost::function  
> objects to see if they were bound to the same function. Greg, quite
> sensibly, wanted a unit test to ensure that the default bindings were
> correct, and there was no way that we could find to dig the original  
> function pointer out and check it.

Of course another approach is to make a dummy function that just toggles
a flag if it is called, and then test if boost::function invokes that
function.

> Fortunately, in this case we were able to use a raw function pointer, but
> it begs the question -- I could see not comparing two boost::bound
> function objects as the member instances might be different, but even then
> I'd like to do some kind of type checking.

Given that operator== is deliberately left undefined, and the way they
are doing their abstraction, I can't see a way to do what you want.

-- 
Christopher Smith <x@xxxxxxxx>
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