From a965f5b85a800ffe98856b184e528df1ecd05501 Mon Sep 17 00:00:00 2001
From: Wenzel Jakob <wenzel.jakob@epfl.ch>
Date: Wed, 3 May 2023 16:50:36 +0200
Subject: [PATCH] minor Eigen fix for debug mode compilation

---
 include/nanobind/eigen/dense.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/nanobind/eigen/dense.h b/include/nanobind/eigen/dense.h
index 816b3d7e..a95e9415 100644
--- a/include/nanobind/eigen/dense.h
+++ b/include/nanobind/eigen/dense.h
@@ -226,7 +226,8 @@ struct type_caster<Eigen::Map<T, Options, StrideType>, enable_if_t<is_eigen_plai
 
     operator Map() {
         NDArray &t = caster.value;
-        return Map(t.data(), t.shape(0), t.shape(1), strides());
+        return Map(t.data(), t.shape(0), t.ndim() == 1 ? 1 : t.shape(1),
+                   strides());
     }
 };