Re: [Boost-users] Using Fusion adapted struct with mpl::is_sequence

Subject: Re: [Boost-users] Using Fusion adapted struct with mpl::is_sequence
From: Christopher Schmidt (mr.chr.schmidt_at_[hidden])
Date: 2009-12-08 07:07:43

John Smith schrieb:
[snip]
> which works fine.  However, I pass the adapted struct to my MPL
> algorithm and it seems to always return false on mpl::is_sequence.  If
> I typedef boost::fusion::fusion_sequence_tag tag in the struct, then it
> all works, also if I pass in a proper fusion sequence, then that works
> as well.  I was wondering if there was a different way of doing things,
> I don't really want to require the tag to be typedef'ed in the structure.

This is a bug. Fusion should provide a specialized implementation of
mpl::sequence_tag for adapted structures. Please file a bug report.

-Christopher