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Diffstat (limited to 'Eigen/src/Core/PermutationMatrix.h')
| -rw-r--r-- | Eigen/src/Core/PermutationMatrix.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/Eigen/src/Core/PermutationMatrix.h b/Eigen/src/Core/PermutationMatrix.h index 1297b8413..f26f3e5cc 100644 --- a/Eigen/src/Core/PermutationMatrix.h +++ b/Eigen/src/Core/PermutationMatrix.h @@ -555,7 +555,10 @@ struct permut_matrix_product_retval const Index n = Side==OnTheLeft ? rows() : cols(); // FIXME we need an is_same for expression that is not sensitive to constness. For instance // is_same_xpr<Block<const Matrix>, Block<Matrix> >::value should be true. - if(is_same<MatrixTypeNestedCleaned,Dest>::value && extract_data(dst) == extract_data(m_matrix)) + if( is_same<MatrixTypeNestedCleaned,Dest>::value + && blas_traits<MatrixTypeNestedCleaned>::HasUsableDirectAccess + && blas_traits<Dest>::HasUsableDirectAccess + && extract_data(dst) == extract_data(m_matrix)) { // apply the permutation inplace Matrix<bool,PermutationType::RowsAtCompileTime,1,0,PermutationType::MaxRowsAtCompileTime> mask(m_permutation.size()); |