Re: [Boost-users] [fusion][mpl] How to make a vector of a vector of types

On 3/15/07, Christian Henning wrote:

Hi there, subject probably sounds a bit strange but here is what I'm trying to accomplish.

The problem description goes like this:

using namespace boost; using namespace boost::fusion;

struct A; struct B; struct C;

int main() { typedef vector< A, B, C > types;

// how to translates typed into the following??

typedef vector< std::vector<A>, std::vector<B>, std::vector<C> > vector_of_types;

return 0; }

You probably want to look at the MPL transform metafunction: http://www.boost.org/libs/mpl/doc/refmanual/transform.html Chris