Re: [boost] [Iterator] Adaptors for accessing keys/values in associative containers

From: shunsuke (pstade.mb_at_[hidden])
Date: 2007-08-10 18:02:40

François Duranleau wrote:
> How about:
> 
> template < typename Iterator >
> class key_iterator : public get_iterator< Iterator , 0 >
> {
>     public :
> 
>         key_iterator() {}
> 
>         key_iterator( const Iterator& i )
>             : get_iterator< Iterator , 0 >( i )
>         {
>         }
> } ;

IIRC, a conforming iterator can't be implemented using inheritance.
Overloaded operators would return the base type.

-- 
Shunsuke Sogame