[boost] Re: Hello MPL world!

From: David B. Held (dheld_at_[hidden])
Date: 2003-01-06 19:09:42

"David Abrahams" <dave_at_[hidden]> wrote in message
news:u7kdhkfdj.fsf_at_boost-consulting.com...
> Howard Hinnant <hinnant_at_[hidden]> writes:
>
> OK, I see your point.  How about:
>
>   template <class T>
>   struct my_container
>      : if_<
>           and_<
>                is_pointer<T>
>              , is_POD<remove_pointer<T> >
>           >
>           , impl1
>           , impl2
>        >::type
>   {
>      ...
>   };

I think if you provided a copy c'tor that called memcpy() for
impl1, or some other POD optimization, that would motivate the
example for people who might be a little slow on the uptake
(like I am sometimes!).  Otherwise, it seems like a decent
introduction.  You might even be a little suggestive and call it
my_vector, to imply that you are creating a POD-optimized
vector (which people should be able to relate to easily enough).

Dave