id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
9130,Boost Fusion parameter pack error in VS 2013 RC,dain.bray@…,Joel de Guzman," 
 fusion::map does not compile in VS 2013 RC.

 If gives these errors:

error C3520: 'T' : parameter pack must be expanded in this context	c:\depo\common\third_party\boost\boost\fusion\container\generation\make_cons.hpp	39
error C3520: 'T' : parameter pack must be expanded in this context	c:\depo\common\third_party\boost\boost\fusion\container\generation\detail\preprocessed\make_list10.hpp
error C3520: 'T' : parameter pack must be expanded in this context	c:\depo\common\third_party\boost\boost\fusion\container\generation\detail\preprocessed\make_vector10.hpp
error C3520: 'T' : parameter pack must be expanded in this context	c:\depo\common\third_party\boost\boost\fusion\container\generation\detail\preprocessed\make_set10.hpp

Here is the complete template callstack for one of them(it is not very helpful sorry).

c:\depo\common\third_party\boost\boost\fusion\container\generation\detail\preprocessed\make_list10.hpp(35): error C3520: 'T' : parameter pack must be expanded in this context
1>          c:\depo\common\third_party\boost\boost\fusion\container\generation\detail\preprocessed\make_list10.hpp(36) : see reference to class template instantiation 'boost::fusion::result_of::make_list<T0,boost::fusion::void_,boost::fusion::void_,boost::fusion::void_,boost::fusion::void_,boost::fusion::void_,boost::fusion::void_,boost::fusion::void_,boost::fusion::void_,boost::fusion::void_,boost::fusion::void_>' being compiled

 The example I am posting gives 66 of these errors.


 Here is a minimal repro test.

#include <boost/fusion/container.hpp>
#include <boost/fusion/algorithm.hpp>
#include <boost/fusion/include/algorithm.hpp>
#include <boost/fusion/sequence.hpp>
#include <boost/fusion/include/sequence.hpp>
#include <boost/fusion/support/pair.hpp>
#include <boost/fusion/include/pair.hpp>

namespace fs = boost::fusion;

namespace Key
{
	struct prep_table{};
	struct draw_single{};
};

int main()
{
	fs::map<std::pair<Key::prep_table, float>, std::pair<Key::draw_single, int>> Blah;

	return 0;
}",Bugs,closed,To Be Determined,fusion,Boost 1.54.0,Showstopper,worksforme,,flast@…