Re: [Boost-users] [Multi-Index] Chained Ptr misunderstanding

Subject: Re: [Boost-users] [Multi-Index] Chained Ptr misunderstanding
From: joaquin_at_[hidden]
Date: 2009-04-14 01:52:17

Dominique Devienne escribió:
> Hi. I'm trying to use a shared_ptr as the value_type of a
> multi_index_container, but I'm not having any success with the key
> extractors (VS2005, 1.38).
>
> [...]
>         ordered_unique<
>             BOOST_MULTI_INDEX_CONST_MEM_FUN(
>                 shared_ptr<Foo>, const Uid&, uid
>             )
>         >
>   

Replace the declaration above with

  ordered_unique<
    BOOST_MULTI_INDEX_CONST_MEM_FUN(
      Foo, const Uid&, uid
    )
  >

That is, you must specifiy keys as if there weren't any intervening pointers
--dereferencing is taken care of automatically by Boost.MultiIndex
predefined extractors.

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo