[Boost-users] Re: C++ Template Metaprogramming - Exercise 2-0

From: David Abrahams (dave_at_[hidden])
Date: 2005-01-10 18:49:45

Lemings, Eric B. (Contr) wrote:
> Dave Abrahams wrote:
> 
>> Actually there's a much more concise solution using the type traits
>> library.  That is, after all, the focus of the chapter.
> 
> I believe that would be:
> 
> 	template <typename T>
> 	struct add_const_ref {
> 	  typedef add_const<add_ref<T>::type>::type type;
> 	};
> 
> Correct me if I'm wrong.

Hint: did you write and compile tests for your code?

-- 
Dave Abrahams
Boost Consulting
http://www.boost-consulting.com