Re: [boost] Re: Hello MPL world!

From: Howard Hinnant (hinnant_at_[hidden])
Date: 2003-01-06 17:25:06

On Monday, January 6, 2003, at 01:14  PM, David B. Held wrote:

> While this is a cute idea, my first impression would be: "Uh...is this
> really something I could use in my own code?"  On the other hand,
> I seem to use compile-time if more than anything else, even in "user
> code".  I suspect that most people will use mpl::if_ and type traits
> more than anything else, so I think Dave's original example with
> is_pointer<> would connect with the most programmers.  On the
> other hand, I suspect that library authors are more likely to use the
> type containers and algorithms, so an example illustrating those might
> be more appropriate for them.  So I guess it depends on the
> intended audience.

I would be careful that your target audience doesn't look at the 
"helloworld" and say, gee, why don't I just use existing language 
features:

   template <class T>
   struct my_container
   {
     // impl2 ...
   };

   template <class T>
   struct my_container<T*>
   {
      // impl1 ...
   };

-Howard