[Boost-users] multi_index with base class member

Subject: [Boost-users] multi_index with base class member
From: david joeyoung (david.joe2005_at_[hidden])
Date: 2009-11-05 03:28:16

please give me some advices.

I get a compile error,when to index on base class member.

the codes are listed below:

struct Foo
{
int a;
};

struct Bar : public Foo
{
int b;
};

struct idx0 {};

typedef multi_index_container<
Bar,
indexed_by<
  ordered_unique<
tag < idx0 > ,member < Bar,int,&Bar::a>
  >
>
> test_type;

Error 1 error C2440: 'specialization' : cannot convert from 'int Foo::* ' to
'int Bar::* '
and the codes are compiled in boost 1.40, vs 2008 sp1