[boost] Re: Bug: mpl::is_sequence (on MSVC7, at least)

From: Eric Friedman (ebf_at_[hidden])
Date: 2003-06-09 17:22:05

David Abrahams writes:
> "Eric Friedman" <ebf_at_[hidden]> writes:
>
> > I've found that mpl::is_sequence fails to operate correctly on certain
types
> > under MSVC7. I haven't tested extensively, but there certainly seems to
be
> > some problem with class templates from namespace std. (The problem
likely
> > extends to other types in other namespaces, and perhaps other compilers,
but
> > I have not investigated the issue thoroughly enough.)
>
> Just msvc6.  The problem is that the workarounds used for vc are
> somewhat limited.  One solution I can see is to change the "or_"
> below into an "and_" and update mpl::list to use a "_tag" as well.
[snip]

Update mpl::list? Does this imply 'workaround' additions must be made to any
user-supplied sequences as well? If so, this should probably become part of
the MPL documentation (when docs on creating user-defined sequences are
added).

Eric