Re: [boost] determining if an object is faster to pass by value or const reference

From: Michael Marcin (mike.marcin_at_[hidden])
Date: 2008-07-07 11:47:11

John Maddock wrote:
> 
> 
> There's nothing to stop you from adding a full or partial specialisation 
> of call_traits to your header:
> 
> struct my_value_type{ ... };
> 
> namespace boost{
> 
> template<>
> struct call_traits<my_value_type>
> {
>  typedef my_value_type value_type;
>  typedef my_value_type& reference;
>  typedef my_value_type const& const_reference;
>  typedef my_value_type param_type;
> };
> 
> } // namespace
> 
> Then once your functions are call_traits aware, it's then easy to tweek 
> behaviour by adding specialisations as required.
> 
> Does this help?
> 

Yes this likely solves my problem. I hope the documentation can be 
updated to mention that specialization for user defined types is supported.

Thanks,

Michael Marcin