Re: [Boost-users] [Iterator, MSV8] iterator_adaptor fails with undefined class

From: David Abrahams (dave_at_[hidden])
Date: 2007-03-04 09:34:14

"Kris Braun" <kbraun_at_[hidden]> writes:

> Hi there,
>
> I'm using Boost 1.33.1. The following code compiles with MSVC7.1, but
> not with MSVC8:
>
> class Path {
>   private:
>     typedef std::vector< Path > PathList;
>
>   public:
>     class iterator : public boost::iterator_adaptor< iterator,
> PathList::const_iterator > {
>    ...
> }
>
> MSVC8 gives this error:
> boost/type_traits/is_pod.hpp(34) : error C2139: 'fledge::Path' : an
> undefined class is not allowed as an argument to compiler intrinsic type
> trait '__is_pod'
>
> Any recommendations on a solution?

You might try defining Path::iterator as a class outside of Path, then
if you need the nested type, use a typedef.

-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com