#include "../Eigen/Core" using namespace Eigen; int main(){ VectorXf a(10), b(10);#ifdef EIGEN_SHOULD_FAIL_TO_BUILD const DenseBase<VectorXf> &ac(a);#else DenseBase<VectorXf> &ac(a);#endif b.swap(ac);}
#include "../Eigen/Core"
using namespace Eigen;
int main()
{
VectorXf a(10), b(10);
#ifdef EIGEN_SHOULD_FAIL_TO_BUILD
const DenseBase<VectorXf> &ac(a);
#else
DenseBase<VectorXf> &ac(a);
#endif
b.swap(ac);
}