threed-beam-fea/ext/eigen-3.3.4/failtest/sparse_ref_4.cpp

#include "../Eigen/Sparse"

using namespace Eigen;

void call_ref(Ref<SparseMatrix<float> > a) {}

int main()
{
  SparseMatrix<float> A(10,10);
#ifdef EIGEN_SHOULD_FAIL_TO_BUILD
  call_ref(A.transpose());
#else
  call_ref(A);
#endif
}