[CppAD] compile error with boost ublas

[Peter Caspers]

Hi Brad,

the following code does not compile ( I tried with boost_1_57_0 and
gcc 4.8.2 ). Can you check this please ?

Thanks
Peter

#include <cppad/cppad.hpp>
#include <boost/numeric/ublas/lu.hpp>

int main() {
    typedef CppAD::AD<double> T;
    boost::numeric::ublas::matrix<T> a(5,5);
    boost::numeric::ublas::permutation_matrix<std::size_t> pert(5);
    // lu decomposition
    const std::size_t s = lu_factorize(a, pert);
    return 0;
}