Re: [boost] [function_types] is there an equivalent for functors?

Subject: Re: [boost] [function_types] is there an equivalent for functors?
From: joel falcou (joel.falcou_at_[hidden])
Date: 2010-07-05 14:18:22

Jeffrey Lee Hellrung, Jr. wrote:
> You can, however, get away with querying whether a function object can 
> be called with a specific signature, though the machinery to do this 
> is relatively complex.  I think something working is found in 
> Boost.Proto as "can_be_called".
If the functor follow the result_of protocol, a  traits can be made to 
test if a functor F can be called with arguments A0,..,An
with a syntax like can_be_called<F(A0,...,An)>

Here is a sample implementation:

http://codepad.org/H5CtU5sa