1#include "../Eigen/Core" 2 3#ifdef EIGEN_SHOULD_FAIL_TO_BUILD 4#define CV_QUALIFIER const 5#else 6#define CV_QUALIFIER 7#endif 8 9using namespace Eigen; 10 11void call_ref(Ref<VectorXf> a) { } 12 13int main() 14{ 15 VectorXf a(10); 16 CV_QUALIFIER VectorXf& ac(a); 17 call_ref(ac); 18} 19