Re: [Boost-users] [bind] [multi-index] Create type of pointer to overloaded erase method

10 Sep 2008

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De: boost-users-bounces@lists.boost.org [boost-users-bounces@lists.boost.org] En nombre de JOAQUIN M. LOPEZ MUÑOZ [joaquin@tid.es]
Enviado el: miércoles, 10 de septiembre de 2008 20:34
Para: boost-users@lists.boost.org
Asunto: Re: [Boost-users] [bind] [multi-index] Create type of pointer to        overloaded erase method
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De: boost-users-bounces@lists.boost.org [boost-users-bounces@lists.boost.org] En nombre de Steven
Watanabe [watanabesj@gmail.com]
Enviado el: miércoles, 10 de septiembre de 2008 18:54
Para: boost-users@lists.boost.org
Asunto: Re: [Boost-users] [bind] [multi-index] Create type of pointer to overloaded erase method
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AMDG
Peter Barker wrote:
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RecordsContainer::size_type (RecordsContainer::*erase)(unsigned int) =
&RecordsContainer::erase;
but it failed to compile. Visual Studio 2003 gives me the following
error on the above line:
<snip>
The following compiles for me with msvc 9.0
int main() {
    RecordsContainer::size_type (RecordsContainer::*erase)(unsigned int) =
        &RecordsContainer::erase;
}
Oddly enough, it fails with MSVC++ 8.0 (though it shouldn't since your
call_traits analysis is correct):
error C2440: 'initializing' : cannot convert from 'overloaded-function' to
'boost::multi_index::detail::ordered_index::size_type (__thiscall
boost::multi_index::multi_index_container::* )(unsigned int)'
But the following works:

  int main() {
    typedef RecordsContainer::index<RecsByID>::type RecordsContainerByID;
    RecordsContainerByID::size_type (RecordsContainerByID::*erase)(unsigned int) =
        &RecordsContainerByID::erase;
  }

even though my previous approach is IMHO still better.

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo