[Boost-users] Bug using mpl with <ciso646> and MSVC?

Subject: [Boost-users] Bug using mpl with <ciso646> and MSVC?
From: ebryan (bryan.12_at_[hidden])
Date: 2009-12-18 18:30:02

Hello,

I am using Spirit with some code that uses the keywords 'and', 'or', etc.
MSVC (at least my version, 9.0) does not implement these keywords, but
support can be added by including <ciso646>, which just has a bunch of
macros, ie. "#define and &&".

The problem I am running into is that when I try to compile something that
uses Spirit and ciso646, I get this compiler error:

boost\mpl\aux_\include_preprocessed.hpp(37) : fatal error C1083: Cannot open
include file: 'boost/mpl/aux_/preprocessed/plain/&.hpp': No such file or
directory

The offending line in include_preprocessed.hpp is:

#   include
BOOST_PP_STRINGIZE(boost/mpl/aux_/preprocessed/AUX778076_PREPROCESSED_HEADER)

It looks like the macro 'bitand' is being expanded in here, so it tries to
include '&.hpp'.

Now, I think this problem has already been solved (mostly). See this
archived discussion, where this problem was worked around for 'and' and
'or': http://lists.boost.org/Archives/boost/2004/05/65563.php

I have checked the header files in boost/mpl and only see three more
conflicts between header names and ciso646 macros: 'bitand', 'bitor', and
'not'. If someone with more expertise than myself could implement a similar
workaround for these headers, I would be very grateful. 

Thanks,
Erik

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