[Boost-users] Preprocessor error in mpl/apply.hpp with g++ 4.4.0 20080604

From: Samuel Tardieu (sam_at_[hidden])
Date: 2008-06-04 06:39:17

With Boost 1.35.0 packages from Debian unstable, I can no longer use
<boost/tokenizer.hpp> with today GCC trunk version.

The shortest way to reproduce the problem is:

% echo '#include <boost/mpl/apply.hpp>' > w.cc

% g++ -E w.cc > /dev/null
In file included from /usr/include/boost/mpl/apply.hpp:23,
                 from w.cc:1:
/usr/include/boost/mpl/apply_wrap.hpp:81:31: error: missing binary operator before token "("
/usr/include/boost/mpl/apply_wrap.hpp:173:31: error: missing binary operator before token "("
In file included from /usr/include/boost/mpl/bind.hpp:27,
                 from /usr/include/boost/mpl/lambda.hpp:18,
                 from /usr/include/boost/mpl/apply.hpp:25,
                 from w.cc:1:
/usr/include/boost/mpl/apply_wrap.hpp:81:31: error: missing binary operator before token "("
/usr/include/boost/mpl/apply_wrap.hpp:173:31: error: missing binary operator before token "("
In file included from /usr/include/boost/mpl/lambda.hpp:18,
                 from /usr/include/boost/mpl/apply.hpp:25,
                 from w.cc:1:
/usr/include/boost/mpl/bind.hpp:364:31: error: missing binary operator before token "("
/usr/include/boost/mpl/bind.hpp:531:31: error: missing binary operator before token "("
In file included from /usr/include/boost/mpl/lambda.hpp:22,
                 from /usr/include/boost/mpl/apply.hpp:25,
                 from w.cc:1:
/usr/include/boost/mpl/aux_/full_lambda.hpp:230:31: error: missing binary operator before token "("
In file included from w.cc:1:
/usr/include/boost/mpl/apply.hpp:138:31: error: missing binary operator before token "("

It worked fine a few weeks ago, I do not know whether this is a boost
bug uncovered by recent GCC changes or if this is a GCC bug.

  Sam