Re: [boost] interest in container_traits

From: shunsuke (pstade.mb_at_[hidden])
Date: 2007-05-13 19:43:13

Christian Holmquist wrote:
> Hello,
> 
> I've had much use of a small traits class for identifying types that matches
> the STL Container concept (roughly) .
> Two functions is made available, is_container<T> and
> container_category_of<T>.
> 
> is_container simply evaluates to true_type or false_type,
> container_category_of tries to categorize T with the following tags.
> 
>     struct non_container_tag {};
>     struct container_tag {};
>     struct sequence_container_tag : public container_tag {};
>     struct associative_container_tag : public container_tag {};
>     struct hashed_container_tag : public associative_container_tag {};
> 
>     template<class T, class Tag = container_tag>
>     struct is_container

It must be useful.
It could be more useful if it supports 'is_std_pair' and 'is_std_vector' etc.
Also, <std_pair_fwd.hpp> and <std_vector_fwd.hpp> etc could be useful.

-- 
Shunsuke Sogame