#include "../Eigen/Core"
#ifdef EIGEN_SHOULD_FAIL_TO_BUILD
#define CV_QUALIFIER
#else
#define CV_QUALIFIER const
#endif
using namespace Eigen;
void foo(const float *ptr, DenseIndex rows, DenseIndex cols){
Map<CV_QUALIFIER MatrixXf, Unaligned, OuterStride<> > m(ptr, rows, cols, OuterStride<>(2));
}
int main() {}