________________________________________ 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

AMDG

Peter Barker wrote:

...

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<KeyFromValue,Compare,SuperMeta, TagList,Category>::size_type (__thiscall boost::multi_index::multi_index_container<Value,IndexSpecifierList>::* )(unsigned int)' [...] The following is bulletproof and has the added benefit of its immunity against future slight changes in the interfaces (like, for instance, erase(key) getting templatized): template<typename Container,typename Key> typename Container::size_type container_erase(Container& c,const Key& k) { return c.erase(k); } int main() { RecordsContainer::size_type (*erase)(RecordsContainer&,const unsigned int&) = &container_erase; } Joaquín M López Muñoz Telefónica, Investigación y Desarrollo