[fusion][mpl] transform_view and as_vector compilation error

15 Dec 2013

      Hi,

we have a problem in our code base. I extracted a minimal example, see
below. The code works with g++ version up to 4.8.1 and C++11 but fails
to compile with gcc-4.8.1 and clang3.2 and newer. Any ideas what goes
wrong here? Should I further dig into the problem?

I am using boost 1.54.

#include 
#include 
#include 

struct t1 { struct result_type1 {}; };
struct t2 { struct result_type1 {}; };

struct my_transform
{
    template< class > struct result;

    template< class F , class T >
    struct result< F( T ) >
    {
        typedef typename T::result_type1 type;
    };
};

int main( int argc , char *argv[] )
{
    namespace fusion = boost::fusion;
    typedef fusion::vector< t1 , t2 > vector_type;
    typedef fusion::transform_view<
        vector_type , my_transform > transform_type;
    typedef fusion::result_of::as_vector<
        transform_type >::type transformed_vector_type;

    return 0;
}

Karsten Ahnert

Agustín K-ballo Bergé

Karsten Ahnert

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