[Boost-users] [fusion] Weird compiler error

From: Christian Henning (chhenning_at_[hidden])
Date: 2007-03-20 11:36:45

Hi there, I know the subject looks suspicious. Usually all compiler
errors are weird when you do metaprogramming. Anyway, this example is
a bit different. I'm just trying to compile a small example taking
from the documentation.

#include <boost/fusion/sequence.hpp>

using namespace std;
using namespace boost;
using namespace fusion;

int _tmain(int argc, _TCHAR* argv[])
{
   typedef map<pair<int, char>, pair<char, char>, pair<double, char> > mymap;
   BOOST_MPL_ASSERT((boost::is_same<result_of::at_key<mymap,
int>::type, char&>));

        return 0;
}

The error is:

c:\cybermdx\Test Programs\Boost\MPL\tagged types\tagged types.cpp(15)
: error C2143: syntax error : missing '}' before '('
c:\cybermdx\Test Programs\Boost\MPL\tagged types\tagged types.cpp(15)
: fatal error C1903: unable to recover from previous error(s);
stopping compilation

I have no clue where the compiler is missing a closing bracket. I'm
using MSVC 7.1

Christian