[boost] Re: indirecter_unary, indirecter_binary

From: David Abrahams (dave_at_[hidden])
Date: 2005-03-07 17:59:01

"Thorsten Ottosen" <nesotto_at_[hidden]> writes:

> "David Abrahams" <dave_at_[hidden]> wrote in message 
> news:u1xar33ps.fsf_at_boost-consulting.com...
> | Matthias Kaeppler <nospam_at_[hidden]> writes:
> |
> | > Thorsten Ottosen wrote:
>
> | >> template< class Fun >
> | >> class indirect_fun
> | >> {
> | >>     Fun fun;
>
> | This is too specific for Matthias' purposes (doesn't work on
> | containers of iterators or smart pointers).  Maybe something like:
> |
> | template< class Fun >
> | struct indirect_fun
> | {
> |    indirect_fun( Fun f ) : fun(f)
> |    { }
> |
> |    template< class T >
> |    typename
> |       result_of<Fun(typename pointee<T>::type)>::type
> |    operator()( T const& r ) const
> |    { return fun( *r ); }
>
> yeah, this is good stuff, mind if I borrow it?

Be my guest.

-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com