Martin Pasdzierny writes:
I'd like to use meta - vectors of integral constants defined as enums. But unfortunately the code below does not compile.
<code> #include <iostream> #include <boost/mpl/vector_c.hpp> #include <boost/mpl/size.hpp>
enum MY_ENUM {X,Y}; // (*) typedef boost::mpl::vector_c<MY_ENUM,X,Y> my_vector_c; static const int size = boost::mpl::size<my_vector_c>::value;
int main(int argc, char** argv) { std::cout << "\nsize:" << size << "\n... bye" << std::endl; } </code>
After replacing line (*) with
typedef boost::mpl::vector_c<int,X,Y> my_vector_c;
the code compiles and runs fine, but this does not look type safe any more.
Any suggestions ?!
Martin, There is not much you can do on a user side to make it work, but we'll look into fixing this for the next release. Meanwhile, I'd suggest to go with 'vector_c<int,X,Y>' version you cite above. -- Aleksey Gurtovoy MetaCommunications Engineering