Re: [boost] [interprocess] Problematic interface for intrusive_ptr

From: Peter Dimov (pdimov_at_[hidden])
Date: 2007-10-24 11:48:51

Markus Schöpflin wrote:

> But I still get:
>
> cxx: Error: ../../../boost/interprocess/smart_ptr/intrusive_ptr.hpp,
>            line 77: identifier "intrusive_ptr_add_ref" is undefined
>            (undeclared) detected during instantiation of
>                      "boost::interprocess::intrusive_ptr<T,
>                      VoidPointer>::intrusive_ptr(const
>                      boost::interprocess::intrusive_ptr<T,
>                      VoidPointer>::pointer &, bool) [with
>                      T=n_transitive::X, VoidPointer=VP]" at line 468
>          of "intrusive_ptr_test.cpp" intrusive_ptr_add_ref(p);
> --------^

This is a point of instantiation error. It's caused by intrusive_ptr_add_ref 
not being defined in one of the associated namespaces of n_transitive::X. 
Looking at the test, it looks like namespace N, the home of N::base, is the 
appropriate place for standard-conforming compilers.

In

http://svn.boost.org/trac/boost/browser/trunk/libs/smart_ptr/test/intrusive_ptr_test.cpp

I've defined intrusive_ptr_* as inline friends of base, but an out of class 
definition in N will also work.