Copying original change from PR pybind#3343, with extra line breaks t…

…o not run past 99 columns (our desired but currently not enforced limit).
rwgk · Oct 11, 2021 · f86c9dc · f86c9dc
1 parent 1b72808
commit f86c9dc
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/include/pybind11/eigen.h b/include/pybind11/eigen.h
@@ -573,7 +573,9 @@ struct type_caster<Type, enable_if_t<is_eigen_sparse<Type>::value>> {
         if (!values || !innerIndices || !outerIndices)
             return false;
 
-        value = Eigen::MappedSparseMatrix<Scalar, Type::Flags, StorageIndex>(
+        value = Eigen::MappedSparseMatrix<Scalar,
+                                          Type::Flags & (Eigen::RowMajor | Eigen::ColMajor),
+                                          StorageIndex>(
             shape[0].cast<Index>(), shape[1].cast<Index>(), nnz,
             outerIndices.mutable_data(), innerIndices.mutable_data(), values.mutable_data());